Kenwood Marine Radio TK 190 User Manual

VHF FM TRANSCEIVER  
TK-190  
SERVICE MANUAL  
REVISED  
© 2001-2 PRINTED IN JAPAN  
( )  
B51-8510-10 S 858  
CONTENTS  
GENERAL ................................................................. 2  
SYSTEM SET-UP ..................................................... 2  
OPERATING FEATURES ......................................... 3  
REALIGNMENT...................................................... 10  
CIRCUIT DESCRIPTION......................................... 12  
SEMICONDUCTOR DATA..................................... 20  
DESCRIPTION OF COMPONENTS ....................... 22  
PARTS LIST............................................................ 24  
EXPLODED VIEW .................................................. 31  
PACKING ................................................................ 32  
DISASSEMBLY FOR REPAIR ................................ 33  
ADJUSTMENT ....................................................... 34  
PC BOARD VIEWS  
Antenna  
(KRA-21:Option)  
Knob assy (SEL)  
(K29-5282-04)  
Knob assy (VOL)  
(K29-5283-04)  
Panel assy  
(A62-0779-03)  
FINAL UNIT (X45-3610-10) ............................... 43  
CONTROL UNIT (X53-3930-10) ........................ 43  
TX-RX UNIT (X57-608X-XX) ............................ 47  
SCHEMATIC DIAGRAM ........................................ 53  
BLOCK DIAGRAM.................................................. 59  
LEVEL DIAGRAM................................................... 61  
TERMINAL FUNCTION ......................................... 62  
KNB-17A (Ni-Cd BATTERY) .................................. 63  
KMC-25A (SPEAKER MICROPHONE) .................. 64  
KSC-19 (CHARGER)............................................... 65  
KSC-20 (RAPID CHARGER) ................................... 65  
KPG-36 (PROGRAMMING INTERFACE CABLE) ..... 65  
KBP-4 ....................................................................... 65  
SPECIFICATIONS............................... BACK COVER  
Knob assy  
(Side key)  
(K29-5423-04)  
Cabinet assy  
(A02-2139-63)  
CAUTION  
Photo is TK-190 K type.  
Does not come with antenna.  
Antenna is available as an option.  
When using an external power connector,  
please use with maximum final module protec-  
tion of 10V  
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TK-190  
OPERATING FEATURES  
You can use these features, using the programming soft-  
ware (KPG-59D). Selector function is selectable channel se-  
lect or group select.  
5-9. Key Lock  
Pressing this key causes the transceiver to accept an en-  
try of only the [Shift], [KeyLock], [PTT], [Emergency] keys,  
[Selector switch], [Volume], [Toggle], [Lamp], [Moni], [Moni  
monentary], [SQ off], [SQ momentary] and [SP Attennation]  
"Lock" is used to prevent users from unexceptable key  
press which might cause a transceiver malfunction. The dis-  
play does not change while the key is being locked.  
Pressing Key Lock again cancels the key lock. Key locked  
transceiver can still receive. Pressing this key while scan-  
ning, keys are locked but a scanning continues.  
The functions for Toggle switch are listed page 7 (Fig. 2).  
Right position is active for programmed function on toggle  
switch except "group select".  
The functions for the top key are listed page 7 (Fig.2).  
Hold action and shift action are programmable.  
The functions for side key are listed page 7 (Fig.2). Hold  
action and shift action are programmable.  
The functions for microphone key are listed page 7  
(Fig.2). Hold action is programmable.  
5-10. Lamp  
5-1. No Function  
Press this key, the transceiver illuminates the display and  
back lit approximate 5 seconds. Press this key again, the  
transceiver stops the illuminating.  
Sounds error operation beep, and no action will occur.  
Use this function when the transceiver is required to be  
more simple operated.  
Pressing any key except the LAMP key while the illumi-  
nated restarts the 5 second timer.  
5-2. AUX.  
This function can be programmed when the voice scram-  
bler board is not installed.  
If this key is pressed, "AUX" icon lights on the LCD and  
"CLR/C" port which is inside of the transceiver turns to the  
high level. If pressed again, the "AUX" icon goes off and the  
"CLR/C" ports turns to the lower level.  
5-11. Low Power  
Press this key, the transmission power of all channel  
changes to Low. Press this key again, the transmission  
power returns to programmed value.  
5-12. Monitor  
Monitor the channel before a transmission.  
Press this key once, "MON" appears and unmutes  
speaker if a carrier is present, regardless of the specified  
signalling (including option signalling). Press this key again,  
"MON" disappears and mutes speaker.  
5-3. Channel Down  
If this key is pressed once, the channel number de-  
creases by one step. If this key is hold down, the channel  
number decreases continuously.  
Press this key after the Option Signalling is matched, the  
Option Signaling is reset. DBD (Dead Beat Disable) mode is  
not reset by this operation.  
5-4. Channel Up  
If this key is pressed once, the channel number increases  
by one step. If this key is hold down, channel number in-  
creases continuously.  
5-13. Monitor Momentary  
While pressing this key, the monitor function (refer 5-12)  
is activated. Release this key, the monitor function is de-  
activated.  
5-5. Channel Name  
This key switches the LCD display between the current  
channel number and programmed channel name.  
5-14. Operator Selectable Tone  
5-6. Delete/Add  
This key switches the currently displayed channel be-  
tween "Delete" and "Add".  
The "Add" channel contained in the scan sequence, and  
"Delete" channel is not contained. In the scan mode, this  
key switches the channel delete or add temporarily.  
This key switches the pre-set decode QT/DQT and en-  
code QT/DQT to OST (Operator Selectable Tone) tone pair.  
Press this key, the transceiver enters to OST select  
mode. In this mode, the display shows "OFF" and the opera-  
tor can select one of the OST tone pair using the Side 1/Side  
2 key. The display shows "TONE ∗∗" and tone pair No. ∗∗ is  
selected or OST name.  
Press OST key again, the transceiver exits from the OST  
select mode, and returns to the channel mode with "OPT"  
icon. "OPT" icon means that the OST tone pair is selected.  
OST tone pair number or OFF can be memorized for each  
channel.  
5-7. Home Channel  
Press this key once, the channel switches to the pre-pro-  
grammed home channel. Press this key again, the channel  
goes back to the previous channel.  
16 kinds of tone pair for OST can be programmed by  
KPG-59D. OST is useful to access the repeater with same  
radio frequency and different tone (QT/DQT).  
5-8. Invert Display  
Press this key once, the displayed the channel number or  
channel name are inverted. Press this key again, the display  
returns to the normal.  
For the operator who does not change the display and  
needs "Invert" only, refer "Invert Display" setting of optional  
feature.  
8
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TK-190 PC BOARD VIEWS  
FINAL UNIT (X45-3610-10) Component Side View  
CONTROL UNIT (X53-3930-10 B/6,D/6,E/6,F/6) Component Side View  
B/6  
E/6  
Q2  
SW B  
SW A  
C5  
G
G
S
D
3
TH1  
FINAL UNIT  
Q1  
S
(Component side)  
D/6  
D
Ref No. Address  
C8  
C6  
Q1  
Q2  
3D  
2D  
F/6  
TOGGLE SW  
TGL  
X45-3610-10  
J72-0717-02  
4
C10  
GND  
Component side  
Foil side  
CONTROL UNIT B/6  
(Component side)  
Pattern 1  
Pattern 2  
Ref No. Address  
5
D102  
D103  
D104  
3M  
3Q  
4Q  
CONTROL UNIT (X53-3930-10 A/6) Component Side View  
6
MIC  
+
7
8
9
10  
11  
12  
13  
X53-3930-10 (A/6)  
J72-0705-02  
Component side  
2SK3075  
Pattern 1  
Pattern 2  
Pattern 3  
Pattern 4  
Foil side  
43  
44  
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