KS-FX922R
SERVICE MANUAL
CASSETTE RECEIVER
KS-FX922R
Area Suffix
E... Continental Europe
KS-FX922R
DISP
DAB
TP
RDS
PTY
7
8
9
10
11
12
MO
Contents
Safety precaution ------------------------------------- 1-2
1-3
Location of main parts-------------------------------
Disassembly method -------------------------------- 1-4
Adjustment method ---------------------------------- 1-11
Description of major ICs ---------------------------- 1-15
No.49596
Feb. 2001
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KS-FX922R
Arrangment of adjusting
Head amplifier board section (Reverse side)
VR402:Rch
VR401:Rch
(Dolby NR level adj)
(Dolby NR Frequency response adj)
B402
C409
R411
VR401
VR402
C412
C410
C411
R413
B416
TPP
C404
E
C418
C413
Q401
1
R424
C405
CP402
1
R421
R422
2
R408
31
IC402
1
11
B409
R425
C419
C414
B401
C407
21
IC401
C408
D402
1
R414
R407
R406
R403
C402
CP403
1
FSMW1101A
1
17
B405
B413
Information for using a car audio service jig
1. We're advancing efforts to make our extension cords common for all car audio products.
Please use this type of extension cord as follows.
2. As a U-shape type top cover is employed, this type of extension cord is needed to check operation of the
mechanism assembly after disassembly.
3. Extension cord : EXTKSRT002-18P ( 18 pin extension cord ) For connection between mechanism assembly
and main board assembly.
Check for mechanism driving section such as motor ,etc..
Cassette mechanism
Disassembly method
1. Remove the bottom cover.
2. Remove the front panel assembly.
3. Remove the top cover .
4. Install the front panel.
5. Confirm that current is being carried by connecting
an extension cord jig.
Note
Available to connect to the CP701 connector when in-
stalling the front panel.
Extension cord
EXTKSRT002-18P
Main board
to Cassette mechanism
Front panel assembly
to Main board
1-12
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EXTKSRT002-18P
KS-FX922R
Extension cord
The mechanism should be directly connected to the board using the extension wire.
EXT-KSRT002-18P
Cassette mechanism
Extension cord
EXTKSRT002-18P
Main bboard
Front panel assembly
to Cassette mechanism
to Main board
EXTKSRT002-18P
1-13
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KS-FX922R
Item
Conditions
Adjustment and Confirmation methods S.Values
Adjust
1. Head
Head height adjustment
Test tape:
SCC-1659
VT703(10kHz)
azimuth
adjustment
Adjust the azimuth directly. When you
adjust the height using a mirror tape,
remove the cassette housing from the
mechanism chassis. After installing the
cassette housing, perform the azimuth
adjustment.
A line
Load the SCC-1659 mirror tape. Adjust with
height adjustment screw A and azimuth
adjustment screw B so that line A of the
mirror tape runs in the center between Lch
and Rch in the reverse play mode.
1.
Head shield
The head is at low position
during.
After switching from REV to FWD then to
REV, check that the head position set in
procedure 1 is not changed. (If the position
has shifted, adjust again and check.)
2.
3.
B line
Head shield
Adjust with azimuth adjustment screw B so
that line B of the mirror tape runs in the
center between Lch and Rch in the forward
play mode.
The head is at High position
during REV.
Output
level:
Maximum
Head azimuth adjustment
Load VTT724 (VT724) (1kHz) and play it
back in the reverse play mode. Set the Rch
output level to max.
1.
2.
PBHead
FWD Adj B
Load VTT703 (VT703) (10kHz) and play it
back in the forward play mode. Adjust the
Rch and Lch output levels to max, with
azimuth adjustment screw B. In this case,
the phase difference should be within 45 .
HEIGHT Adj A
REV Adj C
Engage the reverse mode and adjust the
output level to max, with azimuth
adjustment screw C.
(The phase difference should be 45 or
more.)
3.
4.
phase
(0 )
(45 )
When switching between forward and
reverse modes, the difference between
channels should be within 3dB. (Between
FWD L and R, REV L and R.)
When VTT721 (VT721) (315Hz) is played
back, the level difference between channels
should be within 1.5dB.
5.
1.
2. Tape speed
and wow
Tape speed: Built-in volume
Test tape: VTT712
(3kHz)
Check to see if the reading of the F, counter /
wow flutter meter is within 3015 3045(FWD
/ REV), and less than 0.35% (JIS RMS).
3015
3045Hz
resistor
flutter
confirmation
Wow
flutter: less
than 0.35%
In case of out of specification, adjust the
motor with a built-in volume resistor.
2.
Play test tape VTT724, and set the volume
position at 2V.
3. Play back
frequency
1.
2.
Test tape: VTT724
(1kHz)
VTT739
(63Hz / 1kHz / 10kHz)
Speaker out
1kHz / 63Hz
response
confiramation
: 0
1kHz / 10kHz
: -1 3db
3db
Play test tape VTT739 and confirm.
1kHz / 10kHz: -1
1kHz / 63Hz: 0
3dB,
3dB,
When 10kHz is out of specification, it will be
necessary to read adjust the azimuth.
3.
The tuner section is of an adjustment-freedesign. In case the tuner is in trouble, replace the tuner pack.
1-14
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KS-FX922R
Block Diagram
SUB
MOTOR
SWITCH
TAPE END.STANDBY
MAIN
MOTOR
5
4
3
2
1
HEAD
CN402
CN403
LCH
RCH
TO SPEAKER
MOTOR
TAPE IN
MODE
STANDBY
TAPE END
REEL
METAL
TO CD CHANGER
CONNECTOR TO REAR LINE OUT
J321
J801
CP901
IC401
PB EQ
L/R F
L/R R
FRONT L/R
REAR L/R
CXA2560Q
DOLBY
F/R
MS
IC301
POWER AMP.
LA4743K
SCK
SI/SO
LCH
RCH
IC402
IC801
CHANGER CONTROL
HD74HC126FP-X
FF/REW
DC MOTOR DRIVER
LB1641
OUT LR
OUT RR
OUT LF
OUT RF
SUBMO+
SUBMO-
MECHANISM CONTROL
CD RCH
CD LCH
JBUS SI
JBUS SO
JBUS I/O
IC161
E.VOLUME
TEA6320T-X
F/R
MODE
STANDBY
FF/REW
MOTOR
SUBMO
TAPE IN
DOLBY
MS
IC602
TAPE L/R
JBUS SCK
LCD1
J1
REMOTE SENSOR
RPM6938-SV4
QNZ0450-001
AM
FM
TUNER L/R
S1 – S68
COM1 – COM3
TU1
AM/FM TUNER PACK
QAU0222-001
REEL
IC601
LCD DRIVER
LC75873NW
REMOCON
IC701
LCDDA
LCDCK
LCDCE
COMP OUT
SYSTEM CONTROL MICON
UPD178018AGC-603
SEEK/STOP
SD/ST
SMETER
IC71
RDS DETECTOR
SAA6579T-X
KEY
S601 S619
–
KEY 0 – 2
RDSDA
RDSCK
Tuner.Power AMP.Changer/System Controller
LCD DRIVER/KEY SWITCH CIRCUT
A
B
C
D
E
F
G
2-1
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KS-FX922R
Standard schematic diagrams
Receiver & System control circuit section
5
4
3
2
1
FM Radio Signal/Radio Main Signal
AM Radio Signal
Tape PB/Main Signal
A
B
C
D
E
F
G
2-3
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KS-FX922R
KS-FX922R
Mecha control circuit section
5
4
3
2
1
Tape PB/Main Signal
A
B
C
D
E
F
G
2-4
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KS-FX922R
LCD driver & Operation switch circuit section
5
4
3
2
1
A
B
C
D
E
F
G
2-5
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KS-FX922R
SERVICE MANUAL
CASSETTE RECEIVER
KS-FX922R
DISP
DAB
TP
RDS
PTY
7
8
9
10
11
12
MO
Area Suffix
Centeal Europe
EX
This model is KS-FX922RE EX that is added to the preceding model,
theKS-FX922R E . Therefore the service manual for this model is
consisting of Parts list only.
For others, please refer to the service manual of KS-FX922R E (issue No.49596).
No.49631
Mar. 2001
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COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
KS-FX922R
Block No.M4MM
Parts list(Accessories)
P3-17
Parts number
Q'ty
A
Parts name
INST.BOOK
(LANGUAGE)
Iten
EX
E
A 2
GET0017-002A
(SPA,ITA,SWE,FIN)
1
----------------------------
VICTOR COMPANY OF JAPAN, LIMITED
MOBILE ELECTRONICS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
200103
(No.49631)
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