LG Electronics LG Life Good Computer Monitor L1933TR User Manual

Internal Use Only  
COLOR MONITOR  
SERVICE MANUAL  
CHASSIS NO. : LM57B  
MODEL:  
L1733TR (L1733TR-SFQ.A**MQP)  
L1933TR (L1933TR-SFQ.A**MQP,A**RQP)  
(
) **Same model for Service  
CAUTION  
BEFORE SERVICING THE UNIT,  
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.  
*To apply the MSTAR Chip.  
CONTENTS  
SPECIFICATIONS ................................................... 2  
SERVICE OSD........................................................17  
TROUBLESHOOTING GUIDE .............................. 18  
WIRING DIAGRAM ............................................... 24  
EXPLODED VIEW...................................................25  
REPLACEMENT PARTS LIST ...............................27  
SCHEMATIC DIAGRAM......................................... 31  
PRECAUTIONS ....................................................... 3  
TIMING CHART ....................................................... 7  
DISASSEMBLY ....................................................... 8  
BLOCK DIAGRAM...................................................12  
DISCRIPTION OF BLOCK DIAGRAM .................. 14  
ADJUSTMENT ...................................................... 16  
SPECIFICATIONS  
1. LCD CHARACTERISTICS  
4. Max. Resolution  
D-sub Analog  
Digital  
Type  
: TFT Color LCD Module  
: 1280 x 1024@75Hz  
: 1280 x 1024@60Hz  
Active Display Area : 17 inch - L1733T  
: 19 inch - L1933T  
Pixel Pitch  
: 0.264 (H) x 0.264 (V) - L1733T  
5. POWER SUPPLY  
5-1. Power : AC 100~240V, 50/60Hz , 0.6A  
: 0.294 (H) x 0.294 (V) - L1933T  
: 8bits, 16.2M colors  
Color Depth  
Size  
:
:
358.5 (H) x 296.5 (V) x 17.0(D) - L1733T  
5-2. Power Consumption  
396 (H) x 324 (V) x 17.5(D) - L1933T  
MODE  
VIDEO POWER CONSUMPTION LED COLOR  
H/V SYNC  
ON/ON  
Electrical Interface  
Surface Treatment  
Operating Mode  
Backlight Unit  
: LVDS  
: Hard-coating(3H), Anti-Glare  
less than 33 W -L1733T  
less than 37 W -L1933T  
less than 1 W  
less than 1 W  
less than 1 W  
less than 1 W  
BLUE  
or GREEN  
AMBER  
AMBER  
AMBER  
OFF  
POWER ON (NORMAL)  
ACTIVE  
:
Normally White, Transmissive mode  
: 4-CCFL  
STAND-BY  
SUSPEND  
OFF  
OFF  
OFF  
-
OFF/ON  
ON/OFF  
2. OPTICAL CHARACTERISTICS  
2-1. Viewing Angle by Contrast Ratio 10  
DPMS OFF  
OFF/OFF  
-
Left : -60° min., -70°(Typ) Right : +60° min., +70°(Typ)  
Top :+60° min., +75°(Typ) Bottom : -50° min., -65°(Typ)  
POWER S/W Off  
2-2. Luminance  
:
:
230(min), 300(Typ) (Full White pattern, 0.70V) -6500K  
150(min) (Full White pattern, 0.70V) -9300K  
75%(min)  
6. ENVIRONMENT  
6-1. Operating Temperature : 10°C~35°C (50°F~95°F)  
(Ambient)  
6-2. Relative Humidity  
6-3. MTBF  
: 10%~80% (Non-condensing)  
: 50,000 HRS with 90% Confidence  
: 50,000 Hours(Min)  
2-3. Contrast Ratio  
: 1400:1 (DFC)  
Lamp Life  
3. SIGNAL (Refer to the Timing Chart)  
3-1. Sync Signal  
7. DIMENSIONS (with TILT/SWIVEL)  
L1733T  
• Type  
: Separate Sync, Digital, SOG  
Width  
Depth  
Height  
: 364.5 mm (14.35'')  
: 180 mm (7.09'')  
: 378.2 mm (14.89'')  
3-2. Video Input Signal  
1) Type  
: R, G, B Analog  
: 0~0.71 V  
: 0 Vp-p  
: 0.467Vp-p  
: 0.714Vp-p  
2) Voltage Level  
a) Color 0, 0  
b) Color 7, 0  
c) Color 15, 0  
3) Input Impedance : 75Ω  
L1933T  
Width  
Depth  
Height  
: 402 mm (15.83'')  
: 180 mm (7.09'')  
: 407.5 mm (16.04'')  
3-3. Operating Frequency  
8. WEIGHT (with TILT/SWIVEL)  
L1733T  
Horizontal  
Vertical  
: 30 ~ 83kHz  
: 56 ~ 75Hz  
Net. Weight  
: 3.5 kg (7.72 lbs)  
Gross Weight  
: 4.6 kg (10.14 lbs)  
L1933T  
Net. Weight  
Gross Weight  
: 4.4 kg (9.70 lbs)  
: 5.6 kg (12.35 lbs)  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 2 -  
PRECAUTION  
WARNING FOR THE SAFETY-RELATED COMPONENT.  
WARNING  
BE CAREFUL ELECTRIC SHOCK !  
• There are some special components used in LCD  
monitor that are important for safety. These parts are  
marked on the schematic diagram and the  
replacement parts list. It is essential that these critical  
parts should be replaced with the manufacturer’s  
specified parts to prevent electric shock, fire or other  
hazard.  
• If you want to replace with the new backlight (CCFL) or  
inverter circuit, must disconnect the AC adapter  
because high voltage appears at inverter circuit about  
650Vrms.  
• Handle with care wires or connectors of the inverter  
circuit. If the wires are pressed cause short and may  
burn or take fire.  
• Do not modify original design without obtaining written  
permission from manufacturer or you will void the  
original parts and labor guarantee.  
Leakage Current Hot Check Circuit  
TAKE CARE DURING HANDLING THE LCD MODULE  
WITH BACKLIGHT UNIT.  
AC Volt-meter  
• Must mount the module using mounting holes arranged  
in four corners.  
• Do not press on the panel, edge of the frame strongly  
or electric shock as this will result in damage to the  
screen.  
Good Earth Ground  
such as WATER PIPE,  
CONDUIT etc.  
To Instruments  
• Do not scratch or press on the panel with any sharp  
objects, such as pencil or pen as this may result in  
damage to the panel.  
exposed  
METALLIC PARTS  
1.5 Kohm/10W  
• Protect the module from the ESD as it may damage the  
electronic circuit (C-MOS).  
• Make certain that treatment person’s body are  
grounded through wrist band.  
• Do not leave the module in high temperature and in  
areas of high humidity for a long time.  
• The module not be exposed to the direct sunlight.  
• Avoid contact with water as it may a short circuit within  
the module.  
• If the surface of panel become dirty, please wipe it off  
with a softmaterial. (Cleaning with a dirty or rough cloth  
may damage the panel.)  
CAUTION  
Please use only a plastic screwdriver to protect yourself  
from shock hazard during service operation.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 3 -  
SERVICING PRECAUTIONS  
CAUTION: Before servicing receivers covered by this  
9. Use with this receiver only the test fixtures specified in  
service manual and its supplements and addenda, read  
and follow the SAFETY PRECAUTIONS on page 3 of this  
publication.  
this service manual.  
CAUTION: Do not connect the test fixture ground strap  
to any heat sink in this receiver.  
NOTE: If unforeseen circumstances create conflict  
between the following servicing precautions and any of the  
safety precautions on page 3 of this publication, always  
follow the safety precautions. Remember: Safety First.  
Electrostatically Sensitive (ES) Devices  
Some semiconductor (solid-state) devices can be  
damaged easily by static electricity. Such components  
commonly are called Electrostatically Sensitive (ES)  
Devices. Examples of typical ES devices are integrated  
circuits and some field-effect transistors and  
semiconductor "chip" components. The following  
techniques should be used to help reduce the incidence of  
component damage caused by static by static electricity.  
1. Immediately before handling any semiconductor  
component or semiconductor-equipped assembly, drain  
off any electrostatic charge on your body by touching a  
known earth ground. Alternatively, obtain and wear a  
commercially available discharging wrist strap device,  
which should be removed to prevent potential shock  
reasons prior to applying power to the unit under test.  
2. After removing an electrical assembly equipped with  
ES devices, place the assembly on a conductive  
surface such as aluminum foil, to prevent electrostatic  
charge buildup or exposure of the assembly.  
3. Use only a grounded-tip soldering iron to solder or  
unsolder ES devices.  
4. Use only an anti-static type solder removal device.  
Some solder removal devices not classified as "anti-  
static" can generate electrical charges sufficient to  
damage ES devices.  
5. Do not use freon-propelled chemicals. These can  
generate electrical charges sufficient to damage ES  
devices.  
6. Do not remove a replacement ES device from its  
protective package until immediately before you are  
ready to install it. (Most replacement ES devices are  
packaged with leads electrically shorted together by  
conductive foam, aluminum foil or comparable  
conductive material).  
General Servicing Precautions  
1. Always unplug the receiver AC power cord from the AC  
power source before;  
a. Removing or reinstalling any component, circuit  
board module or any other receiver assembly.  
b. Disconnecting or reconnecting any receiver electrical  
plug or other electrical connection.  
c. Connecting a test substitute in parallel with an  
electrolytic capacitor in the receiver.  
CAUTION: A wrong part substitution or incorrect  
polarity installation of electrolytic capacitors may  
result in an explosion hazard.  
d. Discharging the picture tube anode.  
2. Test high voltage only by measuring it with an  
appropriate high voltage meter or other voltage  
measuring device (DVM, FETVOM, etc) equipped with  
a suitable high voltage probe.  
Do not test high voltage by "drawing an arc".  
3. Discharge the picture tube anode only by (a) first  
connecting one end of an insulated clip lead to the  
degaussing or kine aquadag grounding system shield  
at the point where the picture tube socket ground lead  
is connected, and then (b) touch the other end of the  
insulated clip lead to the picture tube anode button,  
using an insulating handle to avoid personal contact  
with high voltage.  
4. Do not spray chemicals on or near this receiver or any  
of its assemblies.  
5. Unless specified otherwise in this service manual,  
clean electrical contacts only by applying the following  
mixture to the contacts with a pipe cleaner, cotton-  
tipped stick or comparable non-abrasive applicator;  
10% (by volume) Acetone and 90% (by volume)  
isopropyl alcohol (90%-99% strength)  
7. Immediately before removing the protective material  
from the leads of a replacement ES device, touch the  
protective material to the chassis or circuit assembly  
into which the device will be installed.  
CAUTION: This is a flammable mixture.  
Unless specified otherwise in this service manual,  
lubrication of contacts in not required.  
CAUTION: Be sure no power is applied to the chassis  
or circuit, and observe all other safety precautions.  
8. Minimize bodily motions when handling unpackaged  
replacement ES devices. (Otherwise harmless motion  
such as the brushing together of your clothes fabric or  
the lifting of your foot from a carpeted floor can  
generate static electricity sufficient to damage an ES  
device.)  
6. Do not defeat any plug/socket B+ voltage interlocks  
with which receivers covered by this service manual  
might be equipped.  
7. Do not apply AC power to this instrument and/or any of  
its electrical assemblies unless all solid-state device  
heat sinks are correctly installed.  
8. Always connect the test receiver ground lead to the  
receiver chassis ground before connecting the test  
receiver positive lead.  
Always remove the test receiver ground lead last.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 4 -  
General Soldering Guidelines  
Replacement  
1. Use a grounded-tip, low-wattage soldering iron and  
1. Carefully insert the replacement IC in the circuit board.  
2. Carefully bend each IC lead against the circuit foil pad  
and solder it.  
3. Clean the soldered areas with a small wire-bristle  
brush. (It is not necessary to reapply acrylic coating to  
the areas).  
appropriate tip size and shape that will maintain tip  
temperature within the range or 500 F to 600 F.  
2. Use an appropriate gauge of RMA resin-core solder  
composed of 60 parts tin/40 parts lead.  
3. Keep the soldering iron tip clean and well tinned.  
4. Thoroughly clean the surfaces to be soldered. Use a  
mall wire-bristle (0.5 inch, or 1.25cm) brush with a  
metal handle.  
Do not use freon-propelled spray-on cleaners.  
5. Use the following unsoldering technique  
a. Allow the soldering iron tip to reach normal  
temperature.  
"Small-Signal" Discrete Transistor  
Removal/Replacement  
1. Remove the defective transistor by clipping its leads as  
close as possible to the component body.  
2. Bend into a "U" shape the end of each of three leads  
remaining on the circuit board.  
3. Bend into a "U" shape the replacement transistor leads.  
4. Connect the replacement transistor leads to the  
corresponding leads extending from the circuit board  
and crimp the "U" with long nose pliers to insure metal  
to metal contact then solder each connection.  
(500 F to 600 F)  
b. Heat the component lead until the solder melts.  
c. Quickly draw the melted solder with an anti-static,  
suction-type solder removal device or with solder  
braid.  
CAUTION: Work quickly to avoid overheating the  
circuitboard printed foil.  
6. Use the following soldering technique.  
a. Allow the soldering iron tip to reach a normal  
Power Output, Transistor Device  
Removal/Replacement  
1. Heat and remove all solder from around the transistor  
leads.  
temperature (500 F to 600 F)  
b. First, hold the soldering iron tip and solder the strand  
2. Remove the heat sink mounting screw (if so equipped).  
3. Carefully remove the transistor from the heat sink of the  
circuit board.  
against the component lead until the solder melts.  
4. Insert new transistor in the circuit board.  
5. Solder each transistor lead, and clip off excess lead.  
6. Replace heat sink.  
c. Quickly move the soldering iron tip to the junction of  
the component lead and the printed circuit foil, and  
hold it there only until the solder flows onto and  
around both the component lead and the foil.  
CAUTION: Work quickly to avoid overheating the  
circuit board printed foil.  
d. Closely inspect the solder area and remove any  
excess or splashed solder with a small wire-bristle  
brush.  
Diode Removal/Replacement  
1. Remove defective diode by clipping its leads as close  
as possible to diode body.  
2. Bend the two remaining leads perpendicular y to the  
circuit board.  
3. Observing diode polarity, wrap each lead of the new  
diode around the corresponding lead on the circuit  
board.  
4. Securely crimp each connection and solder it.  
5. Inspect (on the circuit board copper side) the solder  
joints of the two "original" leads. If they are not shiny,  
reheat them and if necessary, apply additional solder.  
IC Remove/Replacement  
Some chassis circuit boards have slotted holes (oblong)  
through which the IC leads are inserted and then bent flat  
against the circuit foil. When holes are the slotted type,  
the following technique should be used to remove and  
replace the IC. When working with boards using the  
familiar round hole, use the standard technique as  
outlined in paragraphs 5 and 6 above.  
Fuse and Conventional Resistor  
Removal/Replacement  
1. Clip each fuse or resistor lead at top of the circuit board  
Removal  
hollow stake.  
1. Desolder and straighten each IC lead in one operation  
by gently prying up on the lead with the soldering iron  
tip as the solder melts.  
2. Draw away the melted solder with an anti-static  
suction-type solder removal device (or with solder  
braid) before removing the IC.  
2. Securely crimp the leads of replacement component  
around notch at stake top.  
3. Solder the connections.  
CAUTION: Maintain original spacing between the  
replaced component and adjacent components and the  
circuit board to prevent excessive component  
temperatures.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 5 -  
Circuit Board Foil Repair  
At Other Connections  
Excessive heat applied to the copper foil of any printed  
circuit board will weaken the adhesive that bonds the foil  
to the circuit board causing the foil to separate from or  
"lift-off" the board. The following guidelines and  
procedures should be followed whenever this condition is  
encountered.  
Use the following technique to repair the defective copper  
pattern at connections other than IC Pins. This technique  
involves the installation of a jumper wire on the  
component side of the circuit board.  
1. Remove the defective copper pattern with a sharp  
knife.  
Remove at least 1/4 inch of copper, to ensure that a  
hazardous condition will not exist if the jumper wire  
opens.  
At IC Connections  
To repair a defective copper pattern at IC connections use  
the following procedure to install a jumper wire on the  
copper pattern side of the circuit board. (Use this  
technique only on IC connections).  
2. Trace along the copper pattern from both sides of the  
pattern break and locate the nearest component that is  
directly connected to the affected copper pattern.  
3. Connect insulated 20-gauge jumper wire from the lead  
of the nearest component on one side of the pattern  
break to the lead of the nearest component on the  
other side.  
1. Carefully remove the damaged copper pattern with a  
sharp knife. (Remove only as much copper as  
absolutely necessary).  
2. carefully scratch away the solder resist and acrylic  
coating (if used) from the end of the remaining copper  
pattern.  
3. Bend a small "U" in one end of a small gauge jumper  
wire and carefully crimp it around the IC pin. Solder the  
IC connection.  
Carefully crimp and solder the connections.  
CAUTION: Be sure the insulated jumper wire is  
dressed so the it does not touch components or sharp  
edges.  
4. Route the jumper wire along the path of the out-away  
copper pattern and let it overlap the previously scraped  
end of the good copper pattern. Solder the overlapped  
area and clip off any excess jumper wire.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 6 -  
TIMING CHART  
VIDEO  
SYNC  
A
E
D
B
C
Total  
Period  
( E )  
800  
449  
Video  
Active  
Sync  
Duration  
( D )  
Front  
Porch  
( C )  
96  
2
Blanking  
Time  
Sync  
Dot  
H / V  
Frequency  
MODE  
1
Resolution  
640 x 350  
Polarity  
Clock  
Time ( A )  
( B )  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
H(Pixels)  
V(Lines)  
+
-
25.175  
31.469  
70.09  
31.468  
70.08  
31.469  
59.94  
37.5  
640  
350  
16  
37  
18  
12  
16  
10  
16  
1
48  
60  
2
3
-
28.321  
25.175  
31.5  
900  
720  
108  
2
54  
720 X 400  
640 x 480  
640 x 480  
800 x 600  
800 x 600  
832 x 624  
1024 x 768  
1024 x 768  
1152 x 870  
1152 x 900  
1280 x 1024  
1280 x 1024  
+
-
449  
400  
35  
800  
640  
96  
2
48  
-
525  
480  
33  
4
-
840  
640  
64  
3
120  
16  
-
75  
500  
480  
5
+
+
+
+
+/-  
+/-  
-
40.0  
37.879  
60.317  
46.875  
75.0  
1056  
628  
800  
40  
1
128  
4
88  
600  
23  
6
49.5  
1056  
625  
800  
16  
1
80  
3
160  
21  
600  
7
57.283  
65.0  
49.725  
74.55  
48.363  
60.0  
1152  
667  
832  
32  
1
64  
3
224  
39  
624  
8
1344  
806  
1024  
768  
24  
3
136  
6
160  
29  
-
9
-
78.75  
100.0  
92.978  
108.0  
135.0  
60.123  
75.029  
68.681  
75.062  
61.805  
65.96  
63.981  
60.02  
79.976  
75.035  
1312  
800  
1024  
768  
16  
1
96  
3
176  
28  
-
10  
11  
12  
13  
+/-  
+/-  
+/-  
+/-  
+
+
+
+
1456  
915  
1152  
870  
32  
3
128  
3
144  
39  
1504  
937  
1152  
900  
18  
2
134  
4
200  
31  
1688  
1066  
1688  
1066  
1280  
1024  
1280  
1024  
48  
1
112  
3
248  
38  
16  
1
144  
3
248  
38  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 7 -  
DISASSEMBLY-Set  
# 1  
# 2  
Soft pad on the table.  
Monitor on the pad.  
# 3  
# 4-1  
Hold the head & stand base and then  
Pull up the stand part.  
Twist Stand until "Click".  
# 5  
# 4-2  
Separate head & stand  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 8 -  
# 6  
# 7  
1. Pull the front cover upward.  
2. Then, let the all latches are separated.(#3-1~3-2)  
3. Put the front face down.  
Remove the screws.  
# 9  
# 8  
Disassemble back cover.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 9 -  
DISASSEMBLY-Stand  
* In case of Latch 4.  
# 1-1  
# 1-2  
Push the four latches on the bottom to the  
outside and Separate Stand Body & Base.  
(Reference the #1-2)  
# 2  
# 3  
After finished repair, necessarily push 4ea  
Latches to inside for restoration.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 10 -  
DISASSEMBLY-Stand  
* In case of Latch 2.  
# 1  
# 2  
Hold the stand body.  
Confirm two latch of right and left.  
# 3  
# 4  
Push the latch to the inside.  
Push the base to the opposite direction.  
# 5  
Confirm the condition of separation.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 11 -  
BLOCK DIAGRAM  
M o d u l e  
K E Y  
1 2 V  
D - S u b  
V D I - D  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 12 -  
BLOCK DIAGRAM-POWER  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 13 -  
DESCRIPTION OF BLOCK DIAGRAM  
1. Video Controller Part.  
This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the  
digital video signal using a pixel clock.  
The pixel clock for each mode is generated by the PLL.  
The range of the pixel clock is from 25MHz to 135MHz.  
This part consists of the Scaler, ADC convertor, TMDS receiver and LVDS transmitter.  
The Scaler gets the video signal converted analog to digital, interpolates input to 1280 X 1024 resolution signal and  
outputs 8-bit R, G, B signal to transmitter.  
2. Power Part.  
This part consists of the one 3.3V, and one 1.8V regulators to convert power which is provided 5V in Power board.  
12V is provided for inverter, 5V is provided for LCD panel.  
Also, 5V is converted 3.3V and 1.8V by regulator. Converted power is provided for IC in the main board.  
The inverter converts from DC12V to AC 700Vrms and operates back-light lamps of module.  
3. MICOM Part.  
This part is include video controller part. And this part consists of EEPROM IC which stores control data, Reset IC and  
the Micom.  
The Micom distinguishes polarity and frequency of the H/V sync are supplied from signal cable.  
The controlled data of each modes is stored in EEPROM.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 14 -  
LIPS Board Block Diagram  
12V  
50 ~ 60Hz  
5V  
100KHz  
HVDC  
SWITCHING  
TRANSFORMER  
EMI  
COMPONENTS  
INPUT RECTIFIER  
AND FILTER  
OUTPUT RECTIFIER  
AND FILTER  
LINE  
GND  
100 ~ 240V  
SIGNAL  
COLLENT-  
ION  
PWM CONTROL  
CIRCUIT  
PHOTO-COUPLER  
ISOLATION  
PRIMARY  
SECONDARY  
12V  
High Voltage  
INVERTER CIRCUIT  
Operation description_LIPS  
1. EMI components.  
This part contains of EMI components to comply with global marketing EMI standards like FCC,VCCI CISPR, the  
circuit included a line-filter, across line capacitor and of course the primary protection fuse.  
2. Input rectifier and filter.  
This part function is for transfer the input AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor.  
3. Energy Transfer.  
This part function is for transfer the primary energy to secondary through a power transformer.  
4. Output rectifier and filter.  
This part function is to make a pulse width modulation control and to provide the driver signal to power switch, to  
adjust the duty cycle during different AC input and output loading condition to achieve the dc output stabilized, and  
also the over power protection is also monitor by this part.  
5. Photo-Coupler isolation.  
This part function is to feed back the DC output changing status through a photo transistor to primary controller to  
achieve the stabilized DC output voltage.  
6. Signal collection.  
This part function is to collect the any change from the DC output and feed back to the primary through photo  
transistor.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 15 -  
ADJUSTMENT  
Windows EDID V1.0 User Manual  
2. EDID Read & Write  
1) Run WinEDID.exe  
Operating System: MS Windows 98, 2000, XP  
Port Setup: Windows 98 => Dont need setup  
Windows 2000, XP => Need to Port Setup.  
This program is available to LCD Monitor only.  
1. Port Setup  
a) Copy UserPort.sysfile to  
c:\WINNT\system32\driversfolder  
b) Run Userport.exe  
2) Edit Week of Manufacture, Year of Manufacture,  
Serial Number  
a) Input User Info Data  
b) Click Updatebutton  
c) Click Writebutton  
c) Remove all default number  
d) Add 300-3FF  
e) Click Start button.  
f) Click Exit button.  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 16 -  
SERVICE OSD  
1) Turn off the power switch at the front side of the display.  
2) Wait for about 5 seconds and press MENU, POWER switch with 1 second interval.  
3) The SVC OSD menu contains additional menus that the User OSD menu as described below.  
a) Auto Color : W/B balance and Automatically sets the gain and offset value.  
b) NVRAM INIT : EEPROM initialize.(24C08)  
c) CLEAR ETI : To initialize using time.  
d) AGING : Select Aging mode(on/off).  
e) R/G/B-9300K : Allows you to set the R/G/B-9300K value manually.  
f) R/G/B-6500K : Allows you to set the R/G/B-6500K value manually.  
g) R/G/B-Offset : Allows you to set the R/G/B-Offset value manually.(Analog Only)  
h) R/G/B-Gain : Allows you to set the R/G/B-Gain value manually.(Analog Only)  
i) MODULE : To select applied module.  
A
IBM  
Compatible PC  
Video Signal  
Generator  
15  
5
11  
6
C
PARALLEL PORT  
1
2
OFF  
ON  
5V  
F
C
Power inlet (required)  
Power Select Switch  
(110V/220V)  
Power LED  
ON  
E
A
OFF  
E
ST Switch  
B
B
F
V-Sync On/Off Switch  
(Switch must be ON.)  
Figure 1. Cable Connection  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 17 -  
TROUBLESHOOTING GUIDE  
1. NO POWER  
NO POWER  
(POWER INDICATOR OFF)  
Check Power Board,  
And Find Out a Short Point  
as Opening  
NO  
NO  
Check J403 Voltage  
Pin5, Pin6 (5V)?  
Each Power Line  
YES  
Check  
U301 Pin2 Voltage  
(3.3V) ?  
Check 3.3V Line  
(Open Check)  
No Problem  
YES  
Check Key Control  
Connector Routine  
Is U201  
Pin75 (3.3V)  
Voltage ?  
NO  
NO  
Check 3.3V Line  
Check X-TAL  
YES  
Check U201 Pin 96  
Pulse  
1
YES  
Check U201  
Waveforms  
1
U201-#96  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 18 -  
2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS  
NO RASTER  
(OSD IS NOT DISPLAYED)  
CHECK POWER BOARD,  
AND FIND OUT A SHORT  
POINT AS OPENING EACH  
POWER LINE  
J403  
PIN5, PIN6  
5V?  
NO  
YES  
NO  
NO  
CHECK MICOM INV  
ON/OFF PORT.  
J403 PIN9  
5V?  
YES  
1. CONFIRM BRIGHTNESS  
OSD CONTRL STATE.  
2. CHECK MICOM DIM-ADJ  
PORT  
J403 PIN10  
5V?  
YES  
CHECK  
PULSE AS  
CONTACTING SCOPE  
PROBE TO CAUTION LABEL.  
(CONTACT PROBE TO  
CAUTION LABEL.  
CAN YOU SEE PULSE  
AT YOUR  
NO  
LIPS  
SCOPE?  
YES  
REPLACE CCFL LAMP  
IN THE LCD MODULE  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 19 -  
3. NO RASTER (OSD IS NOT DISPLAYED) – MSTAR  
NO RASTER  
(OSD IS NOT DISPLAYED)  
U201  
PIN 16, 75  
3.3V?  
NO  
NO  
CHECK U301  
YES  
1. CHECK C210, C211  
SOLDERING CONDITION  
2. CHECK X201  
U201  
PIN96, 97  
OSCILLATE AS  
14.31MHZ?  
1
3. TROUBLE IN U201  
YES  
U201  
PIN27 IS 48KHz H-SYNC?  
PIN28 IS 60Hz V-SYNC?  
IS PULSE APPEARED  
AT SIGNAL PINS?  
CHECK CONNECTION  
LINE FROM D-SUB TO  
U201  
NO  
2
AT MODE 12?  
YES  
TROUBLE IN CABLE  
OR LCD MODULE  
Waveforms  
1
2
2
U201-#96, 97  
U201-#27 H-SYNC  
U201-#28 V-SYNC  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 20 -  
4. TROUBLE IN DPM  
TROUBLE IN DPM  
CHECK PC  
PC IS NOT GOING  
INTO DPM OFF MODE  
NO  
NO  
CHECK  
R442, R443  
3
YES  
CHECK  
U201 PIN 27,28  
SYNC PULSE ?  
CHECK H/V SYNC LINE  
YES  
TROUBLE IN U201  
Waveforms  
3
3
R442 H-Sync  
R443 V-Sync  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 21 -  
5. POWER  
NO POWER  
(POWER INDICATOR OFF)  
NO  
CHECK  
Fuse F101 OK?  
Trouble in Fuse (F101)  
YES  
CHECK  
C101 Voltage  
(AC110V->160Vdc  
(AC220V->304Vdc  
NO  
Check BD101  
YES  
CHECK  
U101 Pin6 Waveform  
(Square wave  
NO  
Check U101 Pin7 : 9~10V  
Check D102  
Come out?)  
YES  
NO  
NO  
Check Q101 Drain  
Waveform  
Trouble in Q101  
YES  
Check D201, D202  
Voltage  
Trouble in D201, D202  
YES  
CHECK 5V, 12V Line  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 22 -  
6. Raster  
NO Raster  
(Lamp Off)  
CHECK  
P201 Pin9  
3.3V?  
NO  
NO  
Check Scaler Output  
(Main Board)  
YES  
Check U301 Pin3  
5V?  
Check Q301, Q302  
YES  
NO  
NO  
Check the waveform of U301  
Pin11, 12, 19, 20  
Check U301 Pin2 OVP,  
Less than 1.8V  
YES  
Check the waveform of U301  
Pin11, 12, 19, 20  
Check U301 Pin10 CMP,  
Less than 2.75V  
If waveform is no problem  
NO  
Check Q303~Q308  
Or Trouble in U303, U304  
Check U303, U304  
Drain waveform  
YES  
CHECK T301, T302  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 23 -  
WIRING DIAGRAM  
30P  
6631900109A  
11P  
6631T20023J  
6P  
6631900011H  
3P  
6631T20010E-L1733TR  
6631900125A-L1933TR  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 24 -  
EXPLODED VIEW  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 25 -  
EXPLODED VIEW PARTS LIST  
* Note: Safety mark  
Ref. No.  
Part No.  
Description  
010  
ABJ32220472  
ABJ32229471  
EAJ32188801  
EAJ32189001  
or EAJ35908201  
or EAJ32188901  
6304FHS014B  
3809900177B  
3809900178B  
3809900178H  
AAN32608906  
35509K0245D  
35509K0246D  
3520900038A  
49509K0266A  
49509K0267F  
EBR36881501  
6709900027A  
Cabinet Assembly, L1753 . 17" SILVER best buy for L1733TR  
Cabinet Assembly, L1953 . 19" SILVER L1933TR FOR BEST BUY  
020  
030  
LCD,Module-TFT, LM170E03-TLB3 DRIVER 17.0INCH 1280X1024 300CD COLOR 72% 5/4 800 VS 1 5MS, 160/160, 4LAMP, 2CH-LVDS LG PHILIPS LCD .  
LCD,Module-TFT, LM190E08-TLB2 DRIVER 19.0INCH 1280X1024 300CD COLOR 72% 5/4 800:1 P7 FACTORY 5MS, 160/160, 2CH-LVDS, 4LAMP LG PHILIPS LCD .  
LCD,Module-TFT, LM190E08-TLB6 DRIVER 17.0INCH 1280X1024 300CD COLOR 72% 4/3 800:1 P7, Lusem/Lusem D-IC, 5ms LG PHILIPS LCD  
LCD,Module-TFT, LM190E08-TLB5 DRIVER 19INCH 1280X1024 300CD COLOR 72% 5/4 800 : 1 P4 FACTORY 5MS, 2CH-LVDS, 160/160, 4LAMP LG PHILIPS LCD .  
LCD,Module-TFT, HSD190ME13-D10(700VS1) DRIVER 19INCH 1280X1024 300CD COLOR 72% 4/3 700:1 - HANNSTAR DISPLAY CORPORATION  
Cover Assembly, L1752T NON BACK COVER ASSY MODULE-LPL+DUAL-L1733TR  
Cover Assembly, L1952T NON BACK COVER ASSY MODULE-LPL+DUAL-L1933TR  
Cover Assembly, L1952T NON BACK COVER ASSY MODULE-HSD-DUAL-L1933TR  
Base Assembly, ASSY Lx53 LM57B Lx53 PATTERN TEXTURE(3043900041L)  
Cover, MOLD ABS L1752 ABS L1752 NEW BODY-L1733TR  
040  
050  
Cover, MOLD ABS L1952 ABS L1952 NEW BODY-L1933TR  
060  
070  
Indicator, LED&PRE AMP LX52 PMMA NON LED LENS  
Plate, SHIELD LX52 LAMP-L1733TR  
Plate, PRESS SPTE-C 0.3 LAMP SPTE SHIELD for 19' LPL 5ms module-L1933TR  
PCB Assembly,Sub, CONTROL T.T LM57A ND L1953TR/HR... KXXXXPN L1953TR/HR...  
SMPS,AC/DC, AIVP 100VTO240V 40W 50TO60HZ UL/CSA/VDE/SEV/SEMKO/FIMKO/IMQ/OVE/BSI WORLD WIDE LIEN CHANG  
080  
090  
or 68719PT298A PCB Assembly,Power, POWER T.T LM57A L1752S KNRDQPT -  
100  
EBU30504102  
EBU30504105  
35509K0247A  
49509S0034B  
49509K0262A  
49509K0263A  
4940900022B  
49519K0137A  
35509K0243A  
35509K0242A  
35509K0244A  
64109UP002A  
Main Total Assembly, L1752HQ-BFQ BRAND LM57B-L1733TR  
Main Total Assembly, L1752HQ-BFQ BRAND LM57B-L1933TR  
Cover, MOLD ABS AF-320T L1752TX ABS .  
110  
120  
130  
Plate, SHIELD LX52 REAR SHIELD-DUAL  
Plate, SUPPORT L1752 BRACKET-L1733TR  
Plate, SUPPORT L1952S BRACKET-L1933TR  
Knob, MAIN 5KEY LX52 TACK KNOB ADD SOURCE PRINTING  
Plate Assembly, ASSY STAND HINGE ASSY FOR LX52S/T  
Cover, LX52 HINGE L  
140  
150  
160  
170  
180  
190  
Cover, LX52 HINGE R  
Cover, LX52 HINGE COVER BODY  
Power Cord, DTII-3P-11+DTII-3P-04 HONGCHANG UL/CSA 1870MM PLUG BLACK  
or 6410TUW008A Power Cord, UL_CSA,LP-31 & SVT 18X3C, LS-13_1.87M_BLK LP-31 LS-13 1.87M - 125V 10A SVT 3XAWG18 BLACK UL CSA N  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 26 -  
REPLACEMENT PARTS LIST  
CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS,  
READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL.  
MAIN BOARD AND POWER BOARD PARTS ARE DIFFERENT.  
* NOTE : S SAFETY Mark  
AL ALTERNATIVE PARTS  
DATE: 2007. 02. 06.  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
*S *AL LOC. NO.  
MAIN BOARD  
CAPACITORS  
PART NO.  
DESCRIPTION / SPECIFICATION  
*S *AL LOC. NO.  
PART NO.  
C715  
C716  
C717  
C718  
C719  
C720  
C723  
C724  
C725  
C901  
C902  
C903  
C904  
C905  
C906  
C907  
C908  
C909  
C910  
C911  
C912  
C913  
C914  
0CC680CK41A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK105CD56A  
0CC101CK41A  
0CE107EF610  
0CK103CK51A  
0CC102CK41A  
0CK105CD56A  
0CE107EF610  
0CE107EF610  
0CE107EF610  
0CK104CK56A  
0CK104CK56A  
0CK104CK56A  
0CK102CK56A  
0CK102CK56A  
0CK102CK56A  
0CE227EF610  
C1608C0G1H680JT 68pF 5% 50V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
C1608X7R1A105KT 1uF 10% 10V  
C1608C0G1H101JT 100pF 5% 50V  
KMG16VB100M 100uF 20% 16V 12  
0603B103K500CT 10nF 10% 50V  
C1608C0G1H102JT 1nF 5% 50V C  
C1608X7R1A105KT 1uF 10% 10V  
KMG16VB100M 100uF 20% 16V 12  
KMG16VB100M 100uF 20% 16V 12  
KMG16VB100M 100uF 20% 16V 12  
0603B104K500CT 100nF 10% 50V  
0603B104K500CT 100nF 10% 50V  
0603B104K500CT 100nF 10% 50V  
0603B102K500CT 1nF 10% 50V X  
0603B102K500CT 1nF 10% 50V X  
0603B102K500CT 1nF 10% 50V X  
KMG16VB220M 220uF 20% 16V 21  
C501  
C502  
C503  
C504  
C505  
C506  
C507  
C508  
C509  
C510  
C511  
C512  
C513  
C514  
C515  
C516  
C517  
C518  
C519  
C520  
C521  
C522  
C523  
C524  
C525  
C526  
C527  
C528  
C529  
C530  
C531  
C532  
C533  
C534  
C535  
C536  
C537  
C538  
C701  
C702  
C703  
C704  
C705  
C706  
C707  
C708  
C709  
C710  
C711  
C712  
C713  
C714  
0CK104CF56A  
0603B104K160CT 100nF 10% 16V  
C1608X7R1E473KT 47nF 10% 25V  
C1608X7R1E473KT 47nF 10% 25V  
C1608X7R1E473KT 47nF 10% 25V  
C1608X7R1E473KT 47nF 10% 25V  
C1608C0G1H102JT 1nF 5% 50V C  
C1608X7R1E473KT 47nF 10% 25V  
C1608X7R1E473KT 47nF 10% 25V  
C1608C0G1H270JT 27pF 5% 50V  
C1608C0G1H270JT 27pF 5% 50V  
0603B103K500CT 10nF 10% 50V  
0603B103K500CT 10nF 10% 50V  
0603B104K160CT 100nF 10% 16V  
0603B224K160CT 220nF 10% 16V  
SHL5.0TP16VB10M 10uF 20% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
C1608C0G1H101JT 100pF 5% 50V  
C1608C0G1H101JT 100pF 5% 50V  
C1608C0G1H680JT 68pF 5% 50V  
0603B104K500CT 100nF 10% 50V  
C1608C0G1H680JT 68pF 5% 50V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
0603B104K160CT 100nF 10% 16V  
C1608C0G1H680JT 68pF 5% 50V  
0CK473CH56A  
0CK473CH56A  
0CK473CH56A  
0CK473CH56A  
0CC102CK41A  
0CK473CH56A  
0CK473CH56A  
0CC270CK41A  
0CC270CK41A  
0CK103CK51A  
0CK103CK51A  
0CK104CF56A  
0CK224CF56A  
0CE106CF638  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CC101CK41A  
0CC101CK41A  
0CC680CK41A  
0CK104CK56A  
0CC680CK41A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CK104CF56A  
0CC680CK41A  
DIODEs  
D701  
D702  
D703  
D704  
D705  
D706  
D707  
D708  
D709  
D710  
D711  
D712  
D713  
D714  
D715  
ZD701  
ZD702  
ZD703  
ZD704  
ZD705  
ZD708  
ZD709  
ZD710  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DS226009AA  
0DSON00138A  
0DD184009AA  
0DSON00138A  
0DD184009AA  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
0DZ560009GB  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
KDS226 1.2V 85V 300MA 2A 4NS  
MMBD301LT1G 600MV 30V - - 1.  
KDS184 KDS184 TP KEC - 85V -  
MMBD301LT1G 600MV 30V - - 1.  
KDS184 KDS184 TP KEC - 85V -  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
BZT52C5V6S-(F) 5.6V 5.2TO6V  
ICs  
U501  
U502  
0IPRP00784A  
EAN30510505  
FE251MOH-LF(TSUMO56WHJ-LF) 3  
L1952HQ-SFQ ARDRQP TSUMO G  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 27 -  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
*S *AL LOC. NO.  
PART NO.  
*S *AL LOC. NO.  
PART NO.  
U503  
U503  
U701  
U702  
U901  
U902  
U902  
0ISG240860B  
0IMMR00203A  
0IMMR00014A  
0IMMR00014A  
0IPMGFA003G  
0IPMGSG016A  
0IPMG78403A  
M24C08-WMN6TP 8KBIT 1KX8BIT-L1733TR  
FM24C08 8KBIT 1KX8BIT 2.7VTO-L1933TR  
M24C02-RMN6TP 2KBIT 256X8BIT  
R714  
R715  
R716  
R717  
R718  
R719  
R720  
R721  
R722  
R723  
R724  
R725  
R726  
R727  
R728  
R729  
R730  
R731  
R732  
R733  
R735  
R736  
R737  
R738  
R739  
R903  
R904  
R905  
R907  
R909  
R910  
0RJ1001D677  
0RJ0000D677  
0RJ0332D677  
0RJ0752D677  
0RJ0682D677  
0RJ0682D677  
0RJ0332D677  
0RJ0752D677  
0RJ0752D677  
0RJ0000D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ2200D677  
0RJ2200D677  
0RJ1000D677  
0RJ1000D677  
0RJ2001D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ5600D677  
0RJ2202D677  
0RJ2702D677  
0RX0331K668  
0RJ0000D677  
0RJ0000D677  
MCR03EZPJ102 1KOHM 5% 1/10W  
MCR03EZPJ000 0OHM 5% 1/10W 1  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ750 75OHM 5% 1/10W  
MCR03EZPJ680 68OHM 5% 1/10W  
MCR03EZPJ680 68OHM 5% 1/10W  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ750 75OHM 5% 1/10W  
MCR03EZPJ750 75OHM 5% 1/10W  
MCR03EZPJ000 0OHM 5% 1/10W 1  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ221 220OHM 5% 1/10W  
MCR03EZPJ221 220OHM 5% 1/10W  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ202 2KOHM 5% 1/10W  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ561 560OHM 5% 1/10W  
MCR03EZPJ223 22KOHM 5% 1/10W  
MCR03EZPJ273 27KOHM 5% 1/10W  
RSD02F4J3R30 3.3OHM 5% 2W 12  
MCR03EZPJ000 0OHM 5% 1/10W 1  
MCR03EZPJ000 0OHM 5% 1/10W 1  
M24C02-RMN6TP 2KBIT 256X8BIT  
FAN1117AS33X 4.8TO10.3V 3.3V  
LD1086D2T18TR 3.4TO30V 1.8V-L1733TR  
AZ1086S-1.8TRE1 3.2TO10V 1.8-L1933TR  
FILTERs  
L901  
L902  
L903  
0LCML00003B  
0LCML00003B  
0LCML00003B  
MLB-201209-0120P-N2 120OHM 2  
MLB-201209-0120P-N2 120OHM 2  
MLB-201209-0120P-N2 120OHM 2  
TRANSISTOR  
Q501  
Q501  
Q701  
Q701  
Q702  
Q702  
0TR390409AE  
0TRKE80046A  
0TR390609FA  
0TR390609DC  
0TR390609FA  
0TR390609DC  
KST3904 NPN 6V 60V 40V 200MA-L1733TR  
2N3904S NPN 6V 60V 40V 200MA-L1933TR  
KST3906-MTF PNP -5V -40V -40-L1733TR  
2N3906S-RTK PNP -5V -40V -40-L1933TR  
KST3906-MTF PNP -5V -40V -40-L1733TR  
2N3906S-RTK PNP -5V -40V -40-L1933TR  
RESISTORs  
R501  
R502  
R503  
R504  
R505  
R506  
R507  
R508  
R509  
R510  
R511  
R512  
R513  
R516  
R517  
R518  
R519  
R522  
R523  
R524  
R525  
R526  
R527  
R530  
R701  
R702  
R703  
R704  
R705  
R706  
R707  
R708  
R709  
R710  
R711  
R712  
R713  
0RJ1000D677  
0RJ0562D677  
0RJ1000D677  
0RJ0562D677  
0RJ4700D677  
0RJ1000D677  
0RJ0562D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4701D677  
0RJ4700D677  
0RJ4700D677  
0RJ3900D677  
0RJ1002D677  
0RJ0000D677  
0RJ1502D677  
0RJ4701D677  
0RJ1000D677  
0RJ1002D677  
0RJ4701D677  
0RJ0332D677  
0RJ0332D677  
0RJ1002D677  
0RJ4701D677  
0RJ4701D677  
0RJ0332D677  
0RJ0102D677  
0RJ0102D677  
0RJ0102D677  
0RJ0102D677  
0RJ0102D677  
0RJ0102D677  
0RJ0332D677  
0RJ0000D677  
0RJ0102D677  
0RJ0102D677  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ560 56OHM 5% 1/10W  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ560 56OHM 5% 1/10W  
MCR03EZPJ471 470OHM 5% 1/10W  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ560 56OHM 5% 1/10W  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ471 470OHM 5% 1/10W  
MCR03EZPJ471 470OHM 5% 1/10W  
MCR03EZPJ391 390OHM 5% 1/10W  
MCR03EZPJ103 10KOHM 5% 1/10W  
MCR03EZPJ000 0OHM 5% 1/10W 1  
MCR03EZPJ153 15KOHM 5% 1/10W  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ101 100OHM 5% 1/10W  
MCR03EZPJ103 10KOHM 5% 1/10W  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ103 10KOHM 5% 1/10W  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ472 4.7KOHM 5% 1/10  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ330 33OHM 5% 1/10W  
MCR03EZPJ000 0OHM 5% 1/10W 1  
MCR03EZPJ100 10OHM 5% 1/10W  
MCR03EZPJ100 10OHM 5% 1/10W  
OTHERs  
J901  
J902  
J904  
J905  
J906  
Q901  
X501  
6630TGA005B  
6630G100316  
6602T20008E  
6602T20008K  
6630V90219A  
0TFVI80067A  
6212AA2004F  
QH11121-DN0-D DVI 24P 1.90MM  
DZ11AA1-HVG-PF D-SUB 15P 2.2  
SMW200-06P 6P 2.00MM 1R STRA  
SMW200-11P 11P 2.00MM 1R STR  
SMW200-28C 28P 2.0MM 2R STRA  
SI3865BDV(E3) N-CHANNEL MOSF  
HC-49/U 14.31818MHZ 30PPM(TX  
CONTROL BOARD  
R1  
0RD7501Q609  
0RD7501Q609  
0RD1801Q609  
0RD1201Q609  
0RD1201Q609  
140-058E  
RDM94T1J7K50 7.5KOHM 5% 1/4W  
RDM94T1J7K50 7.5KOHM 5% 1/4W  
RDM94T1J1K80 1.8KOHM 5% 1/4W  
RDM94T1J1K20 1.2KOHM 5% 1/4W  
RDM94T1J1K20 1.2KOHM 5% 1/4W  
THVV502GBC 1C1P 12VDC 0.05A  
THVV502GBC 1C1P 12VDC 0.05A  
THVV502GBC 1C1P 12VDC 0.05A  
THVV502GBC 1C1P 12VDC 0.05A  
THVV502GBC 1C1P 12VDC 0.05A  
GDZJ5.6B 5.6V 5.45TO5.73V 60  
GDZJ5.6B 5.6V 5.45TO5.73V 60  
GDZJ5.6B 5.6V 5.45TO5.73V 60  
SMAW200-06P 6P 2.00MM 1R ANG  
SMAW200-03P 3P 2.00MM 1R ANG  
SMAW200-03P 3P 2.00MM 1R ANG  
BL-BY0BK201G-AB-LC4.5 ROUND  
R2  
R3  
R4  
R5  
SW1  
SW2  
SW3  
SW4  
SW5  
ZD1  
ZD2  
ZD3  
J1  
140-058E  
140-058E  
140-058E  
140-058E  
0DZ560009AG  
0DZ560009AG  
0DZ560009AG  
6602T20009E  
6602T20009B  
6602T20009B  
EAV30486601  
J2  
J3  
LED1  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 28 -  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
*S *AL LOC. NO.  
POWER BOARD  
CAPACITORS  
PART NO.  
*S *AL LOC. NO.  
PART NO.  
D402  
D403  
D404  
D405  
D406  
D407  
D408  
ZD101  
ZD301  
0DSDI00038A  
0DSDI00038A  
0DSDI00038A  
0DSDI00038A  
0DSDI00038A  
0DSDI00038A  
0DSDI00038A  
0DZ330009CC  
0DZGD00128A  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
"BAV99-(F),LF DIODES R/TP SOT"  
MTZJ3.3B TP ROHM-K DO34 - 3.  
ZMM5231B GRANDE REEL TAPING  
C101  
C103  
C104  
C105  
C106  
C107  
C201  
C202  
C203  
C204  
C205  
C206  
C207  
C208  
C210  
C301  
C303  
C304  
C305  
C306  
C307  
C308  
C309  
C310  
C313  
C314  
C315  
C317  
C320  
C402  
C403  
C404  
C405  
C406  
C407  
C409  
C410  
C411  
C412  
C413  
C414  
C415  
C417  
C418  
C419  
CX101  
CY101  
CY102  
CY104  
0CZZ9ST017A  
AL EL CAPACITOR 100UF 450V 2  
AL EL CAPACITOR 33UF 50V 20%  
270PF 2012 50V 5% NP0 R/TP  
AL EL CAPACITOR 0.47UF 50V 2  
2200PF 2012 50V 5% COG R/TP  
"0.1UF D 50V 80%,-20% F(Y5V)"  
EKR3A102K09FK5 SAMWHA 1KV 10  
AL EL CAPACITOR 1000UF 25V 2  
AL EL CAPACITOR 680UF 25V 20  
AL EL CAPACITOR 1000UF 16V 2  
AL EL CAPACITOR 1000UF 16V 2  
AL EL CAPACITOR 1000UF 25V 2  
AL EL CAPACITOR 470UF 25V 20  
330PF 1KV K R TP5.0 TAPING .  
0.1UF 50V 10% X7R 2012 R/TP  
C3216X7R1E225M TDK 25V 2.2UF  
C3216X7R1E225M TDK 25V 2.2UF  
C3216X7R1E225M TDK 25V 2.2UF  
C3216X7R1E225M TDK 25V 2.2UF  
0.22UF 2012 25V 10% R/TP X7R  
0.1UF 50V 10% X7R 2012 R/TP  
1UF 2012 25V 10% X7R R/TP  
0CZZ9ST014A  
0CH5271K416  
0CZZ9ST013A  
0CK222DK4DA  
0CK1040K945  
0CKZTTA002E  
0CZZ9ST021A  
0CZZ9ST020A  
0CZZ9ST018A  
0CZZ9ST018A  
0CZZ9ST021A  
0CZZ9ST019A  
0CKZTTA002B  
0CH3104K566  
0CZZTCT006D  
0CZZTCT006D  
0CZZTCT006D  
0CZZTCT006D  
0CK224DH56A  
0CH3104K566  
0CK105DH56A  
0CK224DH56A  
0CK105DH56A  
0CH2393K516  
0CK152DK51A  
0CH3103K516  
0CH5221K416  
0CZZTCT006D  
0CK22201510  
0CZZ9ST028A  
0CH2153K516  
0CK22201510  
0CZZ9ST028A  
0CH2153K516  
0CK22201510  
0CZZ9ST028A  
0CH2153K516  
0CK22201510  
0CZZ9ST028A  
0CH2153K516  
0CH2222K516  
0CH2222K516  
0CH2222K516  
0CH2222K516  
0CZZ9ST025A  
0CZZ9ST024A  
0CZZ9ST024A  
0CZZ9ST023A  
TRANSISTORs & ICs  
Q101  
Q301  
Q302  
Q303  
Q304  
Q305  
Q306  
Q307  
Q308  
U101  
U201  
U301  
U303  
U304  
PC201  
0TF760000AD  
0TR144009AI  
0TR144009AH  
0TRKE80046A  
0TR390609DC  
0TFDI80001A  
0TFDI80001A  
0TR390609DC  
0TRKE80046A  
0IPMG78425A  
0IPMG78424A  
0IPMG78426A  
0TFAN00001A  
0TFAN00001A  
0IPMG78432A  
SSS7N60B FAIRCHILD ST TO220F  
DTA144EK CHIP TP ROHM - -  
DTC144EK CHIP TP ROHM - -  
2N3904S KEC R/TP SOT23 60V 2  
2N3906S-RTK KEC REEL TAPING  
2N7002 DIODES R/TP SOT23 60V  
2N7002 DIODES R/TP SOT23 60V  
2N3906S-RTK KEC REEL TAPING  
2N3904S KEC R/TP SOT23 60V 2  
FAN7601 FAIRCHILD DIP-8P BUL  
"AZ431-A BCD 3P,TO-92 TAPING"  
OZL68GN O2MICRO 20P SOP BULK  
AP4511GD ADVANCED POWER ELEC  
AP4511GD ADVANCED POWER ELEC  
"LTV-817M-V(C) LITEON 4P, WID"  
0.22UF 2012 25V 10% R/TP X7R  
1UF 2012 25V 10% X7R R/TP  
39000PF 50V 10% B(Y5P) 2012  
1500PF 2012 50V 10% B(Y5P) R  
10000PF 50V 10% B(Y5P) 2012  
220PF 50V 5% NP0 2012 R/TP  
C3216X7R1E225M TDK 25V 2.2UF  
2200PF D 1KV 10% B(Y5P) R  
RESISTORs  
R101  
R102  
R103  
R104  
R105  
R106  
R107  
R108  
R109  
R110  
R111  
R112  
R115  
R116  
R117  
R118  
R202  
R204  
R205  
R206  
R207  
R208  
R209  
R211  
R301  
R303  
R304  
R309  
R310  
R311  
R313  
R315  
0RJ4703G676  
0RJ6801E472  
0RH1004D622  
0RH1001D622  
0RD0912Q609  
0RH2201D622  
0RD8203A609  
0RD4702A609  
0RX0560J609  
0RX1003K607  
0RD0471Q609  
0RJ1302E472  
0RJ4703G676  
0RJ4703G676  
0RH2403D622  
0RH2403D622  
0RX0242K665  
0RN3002F409  
0RN2201F409  
0RJ1601E472  
0RH1001D622  
0RH6800D622  
0RH1001D622  
0RJ1001G476  
0RD1001Q609  
0RH0222D622  
0RD1002Q609  
0RN1502F409  
0RH1004D622  
0RH1502D422  
0RJ6202E472  
0RH2001D622  
470K OHM 1/4 W 5% 3216 R/TP  
6800 OHM 1/8 W 1% 2012 R/TP  
1M OHM 1 / 10 W 2012 5.00% D  
1K OHM 1 / 10 W 2012 5.00% D  
91 OHM 1/4 W (3.4) 5% TA52  
2.2K OHM 1 / 10 W 2012 5.00%  
820K OHM 1/2 W(7.0) 5.00% TA  
47K OHM 1/2 W(7.0) 5.00% TA5  
0.56OHM 1 W 5% TA52  
CERAMIC DISK 10PF 6KV 5% TR  
15000PF 50V 10% B(Y5P) 2012  
2200PF D 1KV 10% B(Y5P) R  
CERAMIC DISK 10PF 6KV 5% TR  
15000PF 50V 10% B(Y5P) 2012  
2200PF D 1KV 10% B(Y5P) R  
CERAMIC DISK 10PF 6KV 5% TR  
15000PF 50V 10% B(Y5P) 2012  
2200PF D 1KV 10% B(Y5P) R  
100KOHM 2 W 5% TA62  
4.70 1/4W(3 5% TA52  
CERAMIC DISK 10PF 6KV 5% TR  
15000PF 50V 10% B(Y5P) 2012  
2200PF 50V 10% B(Y5P) 2012 R  
2200PF 50V 10% B(Y5P) 2012 R  
2200PF 50V 10% B(Y5P) 2012 R  
2200PF 50V 10% B(Y5P) 2012 R  
FILM CAPACITOR 0.47UF 275V 1  
"Y CAPACITOR 100PF 250V 10%,-"  
"Y CAPACITOR 100PF 250V 10%,-"  
"Y CAPACITOR 4700PF 250V 20%,"  
13K OHM 1/8 W 1% 2012 R/TP  
470K OHM 1/4 W 5% 3216 R/TP  
470K OHM 1/4 W 5% 3216 R/TP  
240K OHM 1 / 10 W 2012 5.00%  
240K OHM 1 / 10 W 2012 5.00%  
24 OHM 2 W 5% SF  
30K OHM 1/6 W 1.00% TA52  
2.2K OHM 1/6 W 1.00% TA52  
1.6K OHM 1/8 W 1% 2012 R/TP  
1K OHM 1 / 10 W 2012 5.00% D  
680 OHM 1 / 10 W 2012 5.00%  
1K OHM 1 / 10 W 2012 5.00% D  
1K OHM 1/4 W 1% 3216 R/TP  
1K OHM 1/4 W(3.4) 5.00% TA52  
22 OHM 1 / 10 W 2012 5.00% D  
10K OHM 1/4 W(3.4) 5.00% TA5  
15K OHM 1/6 W 1.00% TA52  
1M OHM 1 / 10 W 2012 5.00% D  
"15K , 1/10W 1% TP"  
DIODEs  
BD101  
D101  
D102  
D103  
D201  
D202  
D306  
D401  
0DRTW00121A  
0DRDI00234A  
0DRDI00244A  
0DSGF00019A  
0DRNH00140A  
0DRNH00130A  
0DSGD00048A  
0DSDI00038A  
D2SB60-1121 TIWAN SEMI ST GB  
PR1007 DIODES TAPING52 DO41  
1N4007/L DIODES TAPING52 DO4  
1N4148 GULF TP DO35 100V 0.1  
FCH10U15 NIHON INTER BULK TO  
FCH10U10 NIHON INTER BULK TO  
MM4148 GRANDE REEL TAPING LL  
"BAV99-(F),LF DIODES R/TP SOT"  
62K OHM 1/8 W 1% 2012 R/TP  
2K OHM 1 / 10 W 2012 5.00% D  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 29 -  
DATE: 2007. 02. 06.  
DESCRIPTION / SPECIFICATION  
*S *AL LOC. NO.  
PART NO.  
R316  
R317  
R318  
R319  
R320  
R321  
R401  
R402  
R403  
R404  
R406  
R407  
R408  
R409  
TH101  
0RH2001D622  
0RJ3303E472  
0RJ1503E472  
0RH1303D622  
0RH1502D422  
0RH1002D422  
0RJ1001G476  
0RJ1001G476  
0RJ1001G476  
0RJ1001G476  
0RJ3600E472  
0RJ3600E472  
0RJ3600E472  
0RJ3600E472  
6322A00035A  
2K OHM 1 / 10 W 2012 5.00% D  
330000 OHM 1/8 W 1% 2012 R/T  
150K OHM 1/8 W 1% 2012 R/TP  
130K OHM 1 / 10 W 2012 5.00%  
"15K , 1/10W 1% TP"  
10K OHM 1/10 W 1% 2012 R/TP  
1K OHM 1/4 W 1% 3216 R/TP  
1K OHM 1/4 W 1% 3216 R/TP  
1K OHM 1/4 W 1% 3216 R/TP  
1K OHM 1/4 W 1% 3216 R/TP  
360 OHM 1/8 W 1% 2012 R/TP  
360 OHM 1/8 W 1% 2012 R/TP  
360 OHM 1/8 W 1% 2012 R/TP  
360 OHM 1/8 W 1% 2012 R/TP  
10D2-07 SEMITEC 10OHM 15% L1  
TRANSFORMER  
T101  
T301  
T302  
61709MC011A  
61709MC010A  
61709MC010A  
EER3016 430UH LX52 LIPS SMPS  
EFD-2124 95UH INVERTER TRANS  
EFD-2124 95UH INVERTER TRANS  
OTHERs  
SC101  
F101  
FB101  
HS1  
6620K00020A  
0FZZTTH001E  
6210TCE003G  
4920900021A  
4920900021A  
4920900022A  
4920900032A  
61409B0009A  
6200J000154  
6602T20008K  
6630V90218A  
6630V90218A  
6630V90218A  
6630V90218A  
971-0016  
HUAJIE AC UL/CSA 3PPIN BLACK  
TIME LAG HBC 2153.15MXE(LEAD  
BRS3550B BO SUNG 3550MM RADI  
EXTRUSION 10*20 16 LX52  
HS2  
EXTRUSION 10*20 16 LX52  
HS3  
PLATE 7*60 16 LX52  
HS4  
PLATE 20.5 *10.5 *12.0  
L202  
LF101  
P201  
P401  
P402  
P403  
P404  
J30  
HL-1520S JEONGSAN 7.0UH 25%  
13.0*710*23680 SAMWAH BULK L  
SMW200-11 YEONHO 11P 2.0MM L  
"35001WR YEONHO 2P 3.5MM DIP,"  
"35001WR YEONHO 2P 3.5MM DIP,"  
"35001WR YEONHO 2P 3.5MM DIP,"  
"35001WR YEONHO 2P 3.5MM DIP,"  
TIN HDC 0.60H NON NON  
J31  
971-0016  
TIN HDC 0.60H NON NON  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 30 -  
SCHEMATIC DIAGRAM  
1. SCALER  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 31 -  
2. POWER & WAFER  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 32 -  
3. INVERTER  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 33 -  
4. POWER  
LGE Internal Use Only  
Copyright  
Only for training and service purposes  
2007 LG Electronics. Inc. All right reserved.  
- 34 -  
Feb. 2007  
P/NO : MFL43002807  
Printed in Korea  

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