Page 1
SERVICE MANUAL
CASSETTE RECEIVER
KS-F160
KS-F160
Contents
MO
Safety precaution
Disassembly method
Adjustment method
Description of major ICs
K
S-
F
160
Area Suffix
J ---- Northern America
1-2
1-3
1-12
1-16
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.49659
Nov. 2001
Page 2
KS-F160
Safety precaution
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
1-2
Page 3
Disassembly method
Detaching the front panel unit
( See Fig.1 )
Push the Release button in the direction of arrow to
detach the front panel unit.
KS-F160
Front panel unit
Push the release button
Fig. 1
Removing the front chassis
( See Fig. 2 and 3 )
Disengage the four tabs ( a ) in the right and left sides of
unit and pull the front chassis forward to remove it.
Removing the bottom cover
( See Fig. 2 to 4 )
1. Removie the front chassis.
2 . Turn the unit up side down.
3. Insert the screwdriver to the four engagements
( b, c, d, f ) .
4 . Turn the screwdriver and remove the bottom
cover.
Front chassis
a
Bottom cover
c
Top chassis
Fig. 2
Front chassis
a
b
a
d
a
Bottom cover
Fig. 3
Rear panel
f
Fig. 4
1-3
Page 4
KS-F160
Removing the heat sink (SeeFig.5)
1. Removing the front chassis.
2. Removing the bottom cover.
3. Remove the three screws ( 1 and 1` ) retaining the
heat sink.
Removing the main board assembly
( See Fig. 5 to 7)
1. Removing the front chassis.
2. Removing the bottom cover.
3. Removing the heat sink.
Attach the heat sink with a screw ( 1` ) on operat-
( )
ing checks.
4. Remove the two screws ( 2 ) retaining the main
board assembly.
5. Remove the two screws ( 3 ) retaining the rear
panel .
6. Separate the main board assembly and cassette
mechanism assembly.
7. Take out the main board assembly.
1
Heat sink
Fig. 5
1
1`
2
2
Main board assembly
Fig. 6
3
Rear panel
Fig. 7
3
1-4
Page 5
KS-F160
Removing the cassette mechanism assembly
( See Fig. 8 )
1. Removing the front chassis.
2. Removing the bottom cover.
3. Removing the heat sink.
4. Removing the main board assembly.
5. Remove the four screws ( 4 ) retaining the cassette
mechanism.
6. Separate the top chassis and cassette mechanism.
Removing the operation switch board
( See Fig. 9 to 11 )
1. Detaching the front panel unit.
2. Turn the front panel back side down.
3. Remove the four screws ( 5 ) retaining the front
cover.
4. Open the front cover gradually by disengaging the
three engagements ( g ) while pushing the top of
the front cover in the arrow "A" direction, then
disengage the three engagements ( h ) on the both
sides.
5. Place the front panel unit front side down.
6. Disengage the three engagements ( i ) on the
bottom to separate the front cover from the front
panel.
(Be careful not to lose the button springs.)
h
g
5
5
Front panel
Cassette mechanism
4
4
Top chassis
Fig. 8
A
Front cover
Front cover
i
i
g
Fig. 9
Fig. 10
4
Front side
4
g
5
h
h
5
i
Operation switch board
Fig. 11
1-5
Page 6
KS-F160
Removing the head amplifier board
( See Fig. 12 )
1. Removing the front chassis.
2. Removing the bottom cover.
3. Removing the heat sink.
4. Removing the main board assembly .
5. Removing the cassette mechanism.
6. Remove the screw ( 6 ) retaining the head amplifier board.
7. Shift the two inter rocking sections ( j ) securing
the head amplifier board in the direction shown by
the arrow "B" to remove the printed circuit board.
8. From the connector CJ901 on the head amplifier
board from connector wire out going to the head
relay board.
Removing the chassis assembly
Head amplifier board
B
CJ901
j
j
To head relay board
Relay board
6
Fig. 12
( See Fig. 13 and 14 )
1. Removing the front chassis.
2. Removing the bottom cover.
3. Removing the heat sink.
4. Removing the main board assembly .
5. Removing the cassette mechanism.
6. Removing the head amplifier board.
7. Turn the left side to cassette mechanism.
8. Remove the screw ( 7 ) retaining the relay board.
9. Shift the one inter rocking sections ( k ) securing
the relay board in the direction shown by the
arrow "C" to remove the printed circuit board.
10. Turn the back side down, remove the four screws
( 8 ) retaining the chassis assembly .
Chassis assembly
C
7k
Fig. 13
8
8
8
1-6
8
Fig. 14
Page 7
<Cassette mechanism assembly>
KS-F160
Prior to performing the following procedures, remove
the head amplifier board, the relay board and the
mechanism bracket.
Removing the direction switch board
(See Fig.1)
1.
Unsolder the three wires a on the direction switch
board.
2.
Remove the one screw A attaching the direction
switch board.
Removing the FF / REW lever assembly
(See Fig.1)
1.
Remove the screw B attaching the FF / REW lever
assembly on the back of the cassette mechanism
assembly.
2.
Remove the screw C on the upper side of the FF /
REW lever assembly.
3.
Lift and pull forward the FF / REW lever assembly to
disengage the joints b, c, d and e.
Joint e
Joint d
C
FF / REW lever assembly
A
Soldering a
Direction switch board
Fig.1
Joint c
Joint b
B
Reattaching the FF / REW lever assembly
(See Fig.1)
1.
Reattach the FF / REW lever assembly to the joint c
on the back of the chassis.
2.
Reattach the pinch-roller shaft e, the change lever d
and the return link e to the chassis.
1-7
Page 8
KS-F160
Pinch-roller (R) assembly
A arm spring (b)
Shaft
Remove the P arm spring (r)
from the chassis.
P arm spring (r)
S support plate
C washer
FF roller
Removing the playback head (See Fig.2)
Prior to performing the following procedure, remove
the direction switch board and the FF / REW lever
assembly.
Pinch-roller (F) assembly
D
A arm spring (a)
Shaft
Playback head
Remove the P arm spring (f)
from the chassis.
P arm spring (f)
Fig.2
1.
Remove the screw D attaching the playback head.
2.
Remove the C washer and pull out the FF roller.
3.
Remove the S support plate, the A arm spring (a)
and (b), the playback head.
ATTENTION:
The A arm spring (a) differs from the A
arm spring (b).
Removing the pinch-roller (R) and (F)
assembly (See Fig.2)
Prior to performing the following procedure, remove
the direction switch board and the FF / REW lever
assembly.
1.
Remove the P arm spring (f) in the pinch-roller (F)
assembly from the chassis.
2.
Remove the P arm spring (r) in the pinch-roller (R)
assembly from the chassis.
3.
Draw out the pinch roller (F) and (R) assembly from
the shaft.
ATTENTION:
The P arm spring (f) differs from the P
arm spring (r).
ATTENTION:
The pinch roller (F) assembly differs
from the pinch roller (R) assembly.
1-8
Page 9
KS-F160
Removing the cassette hanger / cassette
holder (See Fig.3)
Prior to performing the following procedure, remove
the FF / REW lever assembly.
1.
From the rear of the unit, bend the two tabs f
outwards and disengage the two joints g in the
direction of the arrow.
2.
Push the eject lever and remove the cassette holder
from the playback head. Disengage the two joints h
of the cassette hanger / cassette holder and the eject
lever in the direction of the arrow.
3.
Lift the cassette hanger / cassette holder and disengage
the joint i of the return link and the eject lever.
Removing the reel disc assembly
(See Fig.4)
Prior to performing the following procedure, remove
the FF / REW lever assembly and the cassette
hanger / cassette holder.
Joint g
Cassette holder
Return link
Joint i
Cassette hanger
Eject lever
Joint h
Chassis
Joint h
Tab f
Tab f
Joint g
Fig.3
C washer
1.
Remove the C washer and pull out reel disc assembly.
ATTENTION:
Replace with a new C washer when
reattaching.
Removing the motor assembly
(See Fig.5)
1.
Unsolder the two wires j on the motor assembly.
ATTENTION:
2.
Turn over the cassette mechanism assembly and
remove the main belt and the sub-belt from the
motor pulley.
ATTENTION:
To replace the sub-belt, remove the
main belt and the sub-belt from the
motor pulley. Then remove the three
screws E and one screw F. Replace
with a new sub-belt while lifting the reel
base assembly slightly.
The main belt can now be removed.
C washer
Flywheel (BF)
Fig.4
Main-belt
E
Reel disc assembly
Motor assembly
Sub-belt
G
E
Motor pulley
G
Soldering j
3.
Remove the two screws G attaching the motor
assembly.
Flywheel (BR)
Reel base assembly
E
Fig.5
F
1-9
Page 10
KS-F160
Removing the Flywheel (BF) and (BR)
assembly (See Fig.4 and 5)
Prior to performing the following procedure, remove
the cassette hanger / cassette holder.
1.
From the upper side of the cassette mechanism
assembly, remove the C washer from each shaft of
the flywheel (BF) and (BR).
2.
Turn over the cassette mechanism assembly and
remove the main belt. Pull out the flywheel (BF) and
(BR) downward respectively.
Removing the reel base assembly
(See Fig.5 and 6)
1.
Raise the part k of the reel base assembly slightly
and remove the selector link (B) on the front side of
the cassette mechanism assembly by turning it as
shown in Fig.10.
C washer
C washer
Flywheel (BF)
Fig.4
Main-belt
E
Reel disc assembly
Motor assembly
Sub-belt
G
Motor pulley
2.
Remove the three screws E and the one screw F
on the underside of the cassette mechanism
assembly.
ATTENTION:
The reel base assembly is not
repairable. Handle with care.
Inside of the reel base assembly
Flywheel (BR)
k
Reel base assembly
E
Fig.5
Pinch-roller (R) assembly
G
Soldering j
E
F
1-10
Selector link (B).
Turn the selector link (B).
Fig.6Fig.7
Page 11
Removing the mute switch board
(See Fig.8)
1.
Unsolder the two wires l on the mute switch board on
the back of the cassette mechanism assembly.
2.
Remove the screw H attaching the mute switch
board.
Cassette mechanism assembly
Soldering l
Fig.8
H
Rower switch
Mute
switch board
KS-F160
Motor assembly
Removing the power switch (See Fig.9)
Prior to performing the following procedure, remove
the motor assembly.
1.
Unsolder the two wires m on the power switch on the
side of the cassette mechanism assembly.
2.
Remove the screw I attaching the power switch.
Soldering m
I
Cassette mechanism assembly
Power switch
Fig.9
1-11
Page 12
KS-F160
Adjustment method
Test instruments reqired for adjustment
1. Digital oscilloscoe(100MHz)
2.Frequency counter meter
3.Electric voltmeter
4.Wow & flutter meter
5.Test tapes
VT724.......................for DOLBY level measurement
VT739............For playback frequency measurement
VT712....For wow flutter & tape speed measurement
VT703.....................For head azimuth measurement
6.Torque gauge...................Cassette type for CTG-N
(Mechanism adjustment)
Standard volume position
Balance and Bass, Treble volume, Fader
:Center(Indication"0")
Loudness,Dolby NR,Sound,Cruise:Off
V
Volume position is about 2V at speaker output with
following conditions,Playback the test tape VT721.
AM mode 999kHz/62dB,INT/400Hz,30%
FM mono mode
FM stereo mode 1kHz,67.5kHz dev.pilot 7.5kHz dev
Output level 0dB(1 V,50 /open terminal)
Measuring conditions(Amplifier section)
Power supply voltage.............. DC14.4V(11V - 16V allowance)
Load impedance............ 4 (4 to 8 allowance)
Line out level/Impedance..............1.0V/20k load (250 nWb/m)
modulation signal on recieving.
97.9MHz/66dB,INT/400Hz,22.5kHz
deviation pilot off mono
Frequenc
Frequency band
FM
Band
MW
AM
LW 531-1602KHz
87.5-107.9MHz
87.5-108MHz
530-1710KHz
200KHz step
50KHz step
10KHz step
9KHz step
1-12
Page 13
Information for using a Car Audio Service Jig
1. For 1995 and 1996 , 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 : EXTKSRT002-6P ( 6 pin extension cord ) For connection between mechanism assembly
and main board assembly .
Check for mechanism driving section such as motor ,etc..
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 CN701 connector when installing the front panel.
Cassette mechanism
KS-F160
EXTKSRT002-6P
Extension cord
: EXTKSRT002-6P
Main board
Front panel assembly
1-13
Page 14
KS-F160
Arrangement of adjusting & test points
Cassette mechanism
(Surface)
Motor assembly
Tape speed adjust
Playback head
Head section view
Head azimuth screw
Playback head
Azimuth screw
Fixed screw
1-14
Height adjusting screw
Height adjusting screw
c
Height adjusting screw
b
a
Page 15
Mechanism adjustment section
KS-F160
Item Adjusting & Confirmation Methods Adjust
1.Head azimuth
"Head Height Adjustment"
Note
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.
Load the mirror tape (SCC-1659). Adjust with height
1.
adjustment screw(a) and azimuth adjustment screw(b) so
that the "A" of the mirror tape runs in the center between
Lch and Rch in the reverse play mode.
2.
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.
3.
Adjust the azimuth screw (b) so that line "B" of the mirror
tape runs in the center between Lch and Rch in the
forword play mode.
"Head azimuth adjustment"
1.
Load the test tape (VT724: 1kHz) and play it back in the
reverse play mode. set the Rch output level to maximum.
2..
Load the test tape (VT703:10kHz) and play it back in the
forward play mode. Adjust the Rch and Lch output levels
to maximum, with azimuth adjustment acrew(b).
In this case, the phase difference should be within 45 .
Engage the reverse mode and adjust the output level to
3.
maximum, with azimuth adjustment screw (c).
*The phase difference should be 45_Kor more.
When switching between forward and reverse modes, the
4.
difference between channels should be within 3dB.
*Between FWD Lch and Rch REV Lcj and Rch.
When the test tape (VT721 : 315Hz) is played back, the
5.
level difference between channels should be within 1.5dB.
Std.Value
A Line
Head shield
The head is at low position
during FWD.
B Line
Head shield
The head is at low position
during REV.
Head azimuth
screw
screw(c)
screw(b)
0
screw(a)
Phase
Fixed screw
45
2.Tape speed and
Wow & Flutter
3.Playback
Frequency
response
1.Check to see if the reading of the frequency counter & Wow
flutter meter is within 2940-3090 Hz(FWD/REV), and less
than 0.35% (JIS RMS).
2.In case of out of specification,adjust the motor with a built-
in volume resister.
1.Play the test tape (VT724 : 1kHz) back and set the volume
position at 2V.
2.Play the test tape (VT739)back and confirm 0 3dB at 1kHz/
8kHz and -4+2dB at 1kHz/125Hz.
3.When 8kHz is out of specification, it will be necessary to read
adjust the azimuth.
Built-in
volume resister
Tape speed
2940-3090Hz
Wow & Flutter
Less than
0.35%
(JIS RMS)
Speaker out
1kHz/8kHz
: 0dB_}3dB,
125Hz/1kHz
: -4dB+2dB,
1-15
Page 16
KS-F160
Description of major ICs
AN80T05LF (IC781) : Regulator
1.Terminal layout & Block diagram
Reference V oltage
ASO & Peak
Thermal
Protection
Current Protection
Pre
Drive
1 2 3 4 5 6 7 8 9 10 11 12
ILL
10V
2.Pin function
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
Pre
Drive
MODE2 MODE1 STB VDD
5.6V
AMP
Out
AMP VCC ANT COM
Symbol Function
NC
TUNER
FM/AM
POWER CNT
5V
VSW 14VOUT
MEMORY
NC
9V
AM
FM
GND
Non connect
When 5V is input,becomes AM. and the antenna output is turned on.
When 5V is input,becomes AM. and the output of FM is switched.
When 5V is input, outputs to ILL,COM,and AMP. It is 0V usually.
5.6V power supply.
Power supply supply to remote amplifier
Back up. connects with ACC with it.
Non connect
8.7V power supply.
The power supply of 8.7V to AM.
The power supply of 8.7V to FM.
Ground
AMP
Out
Pre
Drive
Pre
Drive
8.7VAM8.7VFM8.7V
Pre
Drive
GND
1-16
Page 17
LC75823W (IC651) : LCD driver
1. Pin Layout & Symbol
DATA
S8
S9
S10
S11
S12
S13
S14
S15
S16
CLOCKCEOSC
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Vss
INH
VDD
COM3
COM2
COM1
S52
S51
S50
S49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
KS-F160
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
2. Pin Function
Pin No.
1 to 7
8 to 52
53 to 55
S53 to S55
57
58,59
60
61
62
63
Symbol
S8 to S52
INH
Vss
OSC
CE
CLOCK
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
I/O
--
Non connect
O
Common driver output pins. The frame frequency is given
Function
by : t0=(fosc/384)Hz.
--
Power supply connection. Provide a voltage of between
4.5 and 6.0V.
I
Display turning off input pin.
INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"
INT="H" (VDD)----- on
Serial data can be transferred in display off mode.
Non connect
--
Power supply connection. Connect to GND.
I/O
Oscillator connection.
An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Serial data CE : Chip enable
interface connection
I
to the controller. CL : Sync clock
64
DATA
DI : Transfer data
1-17
Page 18
KS-F160
LC72362N-9920 (IC701):System controller
1.Terminal Layout
24 - 1
25
-
80
-
40
41 - 64
2.Block diagram
XIN
XOUT
FMIN
AMIN
SNS
VDD
VSS
HCTR
LCTR
HOLD
TEST1
TEST2
PA0
PA1
PA2
PA3
PB0
PB1
PB2
BP3
PC0
PC1
PC2
PC3
PD0
PD1
PD2
PD3
PE0
SCK2/PE1
PO2/PE2
SI2/PE3
PF0
SCK1/PF1
SO1/PF2
SI1/PF3
64
V-DET
DIVIDER REFERENCE DIVIDER SELECTOR
SNSFF
1/2
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
1/16, 1/17
PROGRAMMABLE DIVIDER
1/114, 1/124
LATCH
UNIVERSAL
COUNTER
(20bits)
RAM
512 4bits
ROM
12K 16bits
ADDRESS DECODER
PROGRAM COUNTER
STACK
ALU
ADDRESS
DECODER
BUS
DRIVER
INSTRUCTION
DECODER
JUDGE
PHASE
DETECTOR
UNLOCK
F/F
PHASE
DETECTOR
LATCH
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
BEEP
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
LATCH
BUS
DRIV.
BUS
DRIV.
SUB
C.P.
MPX
INTERRUPT
E01
E02
SUBPD
EO3
PQ0
PP3
PP2
PP1
PP0
PO3
PO2
PO1
PO0
PN3
PN2
PN1
PN0/BEEP
PM3
PM2
PM1
PM0
PL3
PL2
PL1
PL0
PK3
PK2
PK1/INT1
PK0/INT0
PJ3
PJ2
PJ1
PJ0
PI1/ADI5
PI0/ADI4
1-18
PF0
SCK1/PF1
SO1/PF2
SI1/PF3
SIO
LATCH
BUS
DRIV.
ADC
MPX
BUS
DRIV.
PH3/ADI3
PH2/ADI2
PH1/ADI1
PH0/ADI0
Page 19
KS-F160
3.Description
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Symbol
XIN
GND
J BUS SI
J BUS SO
J BUS SCK
J BUSI/O SEL
NC
LCD SO
LCD SCK
LCD CE
NC
E.VOL SO
E.VOL SCK
NC
TUNER ILLUM
TAPE ILLUM
CD ILLUM
DIMMER OUT
NC
NC
NC
NC
NC
NC
KS1
KS0
Vdd
TEST
NC
SEEK/STOP
MONO
RADIO/TAPE
BEEP LEVEL
POWER CNT
Acc
NC
K3
K2
K1
K0
I/O
Crystal oscillator
I
To GND
Bus serial data input from CP751
I
Bus serial data output to CP751
O
Bus serial clock output to CP751
O
BUS I/O switch signal output
O
Non connect
Serial data output to IC651
O
Serial clock output to IC651
O
Chip enable output to IC651
O
Non connect
Serial data output
O
Serial clock output
O
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Non connect
Initializing output port
O
Initializing input port
I
Initializing input port
I
Non connect
Initializing input port
I
Power supply
Test input
I
Non connect
-
Output the "If signal request"
O
Monaural and stereo change
O
over output
Non connect
Non connect
Power control output
O
Power supply
Non connect
-
Function
Pin
Symbol
No.
41
42
43
44
45
46
47
48
49
F/R SENSE
50
TAPE MUTE
51
52
53
54
55
J BUS INT
56
REMOCON
57
58
59
60
61
MEMORY DET
62
LEVEL METER
63
64
65
66
67
68
69
70
FM/AM IF COUNT
71
72
73
74
75
76
77
78
79
80
NC
NC
NC
BEEP
NC
NC
NC
TAPE IN
SD/ST
NC
DETACH
NC
FM/AM
DOLBY
NC
MUTE
SMETER
KEY 2
KEY1
KEY0
ACCDET
SENS
NC
NC
NC
Vdd
AM OSC
FM OSC
Vss
NC
ED
TEST 1
XOUT
LC72362N-9920
I/O
-
Non connect
-
Non connect
-
Non connect
-
Non connect
-
Non connect
-
Non connect
-
Non connect
I
H:RADIO L:TAPE
I
FORWARD/REVERSE switch detector
I
DIR.FF/REW MUTE
I
Station detector and ST input
-
Non connect
I
Detection of Front Panel
-
Non connect
I
BUS interruption signal detection communication
-
To GND
I
Change over the FM/AM Input
-
Non connect
-
Non connect
-
The mute time is controlled by the
connected capacitor when changing
over the FM/AM
I
Memorydetector input
I
I
Signal meter input
I
Mementary key input
Mementary key input
I
Mementary key input
I
I
ACC DET
-
To GND
I
Non connect
-
AM/FM Frequency detection
-
Non connect
-
Non connect
I
Power supply
I
Input the local oscillator signal of AM
-
Input the local oscillator signal of FM
Power supply
-
O
Non connect
-
PLL Error signal output
O
To GND
Crystal oscillator
Function
1-19
Page 20
KS-F160
TEA6320T-X (IC931) : E.volume
1.Pin layout
2.Block diagram
10 8 9 7 6
5
12
SDA
1
GND
2
OUTLR
OUTLF
MUTE
TL
B2L
B1L
IVL
ILL
QSL
IDL
ICL
IMD
IBL
IAL
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3.Pin functions
Pin
Symbol
No.
SDA
1
SCL
32
VCC
31
OUTRR
30
OUTRF
29
TR
28
B2R
27
B1R
26
IVR
25
ILR
24
QSR
23
IDR
22
Vref
21
ICR
CD-CH
TAPE
TUNER
20
19
18
17
CAP
IBR
IAR
I/O
Serial data input/output.
I/O
MUTE
21
31
2
19
16
15
13
11
14
22
20
18
17
Functions Functions
POWER
SUPPLY
SOURCE
SELECTOR
23 25 24 26 27 28
VOLUME 1
+20 to -31 dB
LOUDNESS
LEFT
VOLUME 1
+20 to -31 dB
LOUDNESS
RIGHT
Pin
No.
17
Symbol
IAR
BASS
LEFT
+15 dB
LOGIC
BASS
RIGHT
+15 dB
I/O
I
Input A right source.
TREBLE
LEFT
+12 dB
TREBLE
RIGHT
+12 dB
FUNCTION
ZERO CROSS
DETECTOR
VOLUME 2
0 to 55 dB
BALANCE
FENDER REAR
VOLUME 2
0 to 55 dB
BALANCE
FENDER FRONT
HC BUS
REC
VOLUME 2
0 to -55dB
BALANCE
FENDER FRONT
VOLUME 2
0 to -55dB
BALANCE
FENDER REAR
3
4
32
1
29
30
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
OUTLR
OUTLF
TL
B2L
B1L
IVL
ILL
QSL
IDL
MUTE
ICL
IMO
IBL
IAL
Ground.
output left rear.
O
output left front.
O
Treble control capacitor left channel or
I
input from an external equalizer.
Bass control capacitor left channel or
-
output to an external equalizer.
Bass control capacitor left channel.
Input volume 1. left control part.
I
Input loudness. left control part.
I
Output source selector. left channel.
O
Not used
Not used
Input C left source.
I
Not used
Input B left source.
I
Input A left source.
I
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
IBR
CAP
ICR
Vref
IDR
QSR
ILR
IVR
B1R
B2R
TR
OUTRF
OUTRR
Vcc
SCL
I
Input B right source.
-
Electronic filtering for supply.
I
Input C right source.
-
Reference voltage (0.5Vcc)
-
Not used
O
Output source selector right channel.
I
Input loudness right channel.
I
Input volume 1. right control part.
-
Bass control capacitor right channel
Bass control capacitor right channel or
O
output to an external equalizer.
Treble control capacitor right channel or
I
input from an external equalizer.
O
Output right front.
O
Output right rear.
-
Supply voltage.
I
Serial clock input.
1-20
Page 21
HA13158A (IC981) : Power amp
1. Pin layout
1 ~ 23
2. Block diagram
KS-F160
IN1
IN2
IN3
IN4
11
13
23
10
2
1
STBY
MUTE
14 18 6
INVCC
INPUTBUFFER1
INPUTBUFFER2
INPUTBUFFER3
INPUTBUFFER4
PROTECTOR (ASO
SURGE, TSD)
PVCC1PVCC2
AMP1
AMP2
AMP3
AMP4
+
-
+
-
+
-
+
-
3
4
5
7
8
9
15
16
17
19
20
21
12 22
TAB
UPC1228HA(IC901):Head amp
1.Terminal layout & Block diagram 2.Pin function
Pin No.
1
AMP1 AMP2
1
2345678
2
3
4
5
6
7
8
Electrical connection
Input 1
Negative feed back 1
Output 1
Power supply; +Vcc
Ground
Output 2
Negative feed back 2
Input 2
1-21
Page 22
DIRECTION BOARD
KS-F160
Block diagram
ANT
MAIN
MUTE SWITCH
J1
FM
AM
2
1
16
TU1
AM/FM TUNER PA CK
U0120-002
QA
Tuner.Power AMP./System Controller
R
CP722
MOTO
RELAY
BOARD
CP721
APE /RADIO SW
T
CN721
TAPE IN
PROG
SEEK/STOP,
MONO.SD/ST,
S METER,
FM OSC, EO
, BAND
TO SPEAKER
CONNECTOR
TO
LINE REAR OUT
CP981
Lch Rear
Lch F
37
ront
IC981
POWER AMP.
HA13158A
1
OUT L Front
4
IC931
E.VOLUME
TEA6320T
16
TUNER L
3
15
SDA
SCL
TAPE L
IC701
SYSTEM CONTROL MICON
LC72362N-9920
CJ921
Lch Rear OUT
KEY 0 - 2
F/R
CN901
CJ701
CP901
CP701
LCDDA
LCDCK
LCDCE
HEAD
PROG-SW
CJ901
LCH
F/R
1
IC901
HEAD AMPLIFIER
UPC1228HA
3
LCH
HEAD AMPLIFIER CIRCUIT
LCD1
QLD0335-001
S8 - S52
COM1 - COM3
IC651
LCD DRIVER
LC75823W
KEY
S601 - S620
LCD DRIVER/KEY SWITCH CIRCUT
2-1
Page 23
Standard schematic diagrams
Head amplifier circuit
KS-F160
CJ901
QGA2002C1-05
IC901
UPC1228HA
CP722
QGA2002F1-06
CP721
QGB1214K1-06S
C201
C202
820p
C203
100p
0.47/50
R203
C204
R204
330k
47/6.3
C205
100
R201
0.01
C901
100/10
100
R901
R101
R104
330k
C105
C104
C103
100p
0.01
100
R103
47/6.3
CP901
QGB1214K1-06S
C102
C101
0.47/50
820p
Tape PB/Main signal
2-3
Page 24
g
l
Receiver & operation switch circuit section
e
*TU1
QNZ0009-001
ANT
L1
4.7uH
R1
10
1K
R2
1K
R3
D1
1SS119-041
R774
CJ701
VMC0334-001
CN721
QGB1214J1-06S
CN901
QGB1214J1-06S
R719
R718
R720
R717
R716
R715
C772
2.2/50
Q772
KTC3199/GL/-T
KTC3199/GL/-T
3.3K
3.3K
3.3K
100
100
100
D705
D704
D711
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
R704
R705
C773
0.001
D786
DSK10C-T1
D708
D706
D707
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
D718
1SS119-041
10K
KTC3199/GL/-T
47K
1.5K
R773
1K
Q771
D709
MTZJ5.6B-T2
Q701
LCD.SO
LCD.SCK
LCD.CE
DETACH
TAPE.14V
TAPEIN
TAPE.L
TAPE.R
R5V
KEY2
KEY1
KEY0
PROG
F/R
R772
10K
220/10
5V
14V
9V
C771
R771
D771
Q3
4.7K
D792
MTZJ9.1C-T2
1SS119-041
Q1
2SA1706/ST/-TKTA1267/YG/-T
Q2
R5
KRC102M-T
IFREQ
MONO
ACC
1K
1SS119-041
1SS119-041
R4
BAND
1SS119-041
*D701
D714
D715
10K
R6
D791
1SS119-041
R17
2.2K
PCNT5V
PCNT5V
D2
1SS119-041
10K
TU-9V
EO
RB721Q-T2
KS-F160KS-F160
KRA102M-T
Q989
ACC.MUTE
D990
1K
R762
1K
R751
R5V
5V
TU-9V
R786
1K
KRC102M-T
MTZ11B-T2
C972
100
*R759
R753
47K
TAPE.L
TAPE.R
9V
10/16
Q784
2.2/10
100
330K
C705
Q972
KRA102M-T
47K
*R756
HD74HC126P
*R755
R754
C132
1/50
C232
1/50
14V
MEM
47uH
R785
47K
L782
100
14V
TU.RCH
C13
47K
MUTE
LRO
20K
*R53
47/16
C934
R792
6.8
RB721Q-T2
*R54
1/50
*C233
*R64
KRA102M-T
R789
R790
1SS119-041
1SS119-041
7.5K
*C133
IC931
1/50
C933
100/10
7.5K
L781
47uH
Q789
100K
470K
SI/SO
SCK
R795
R796
RRO
R131
22K
C134
TEA6320T
C234
R231
22K
1SS119-041
18K
47K
CD.RCH
0.0082
0.0082
Q782
D781
C783
2SD2144S/VW/-T
14V
R132
C135
C136
0.22
C236
0.22
C235
R232
R784
2200/6.3
C988
47/16
R757
R758
CD.LCH
CD.RCH
TU.LCH
*R63
20K
14VTAPE
100p
R163
820
R165
2.2K
R265
2.2K
R263
820
QNZ0095-001
*CP751
SCK
C137
0.15
0.033
0.033
C237
0.15
2.2k 2.2k
2SA1706/ST/-T
R783
1K
Q781
KRC102M-T
Q987
KRA102M-T
10K
R990
KRC102M-T
Q161
Q261
SI/SO
47K
C784
1SS119-041
Q988
D782
CJ921
CD.LCH
C138
0.0056 0.0056
C238
220/10
10K
C781
10/16
R164
100
2SD2144S/VW/-T
R264
100
C150
C160
1/50
C250
C260
1/50
1/50
R931
10
C785
10/16
C987
1/50
C931
100/10
IC781
DSK10C-T1
10/16
D784
SDA
R721
AN80T05
C985
R722
3.3K
3.3K
C932
0.01
LRO
C707
IC981
R251
SCL
RRO
R252
27K
82K
C986
10/16
C252
C983
470P
C162
R161
27K
R261
27K
470P
C152
0.01
R151
27K
C981
2200/16
D981
1N5401TM
R787
10/16
L981
QQR0704-001
R797
ACC.MUTE
12K
D785
DSK10C-T1
R788
R152
470P
R162
R262
470P
82K
100
C984
82K
82K
C262
C971
C982
C951
4.7/25
4.7/25
0.01
0.01
LRO-
RFO+
RRO+
LRO+
LFO+
RFORROLRO-
LFO-
RRO+
LRO+5VLFO-
RRO-
RFO+
LFO+
RFO-
R971
KRC102M-T
HA13158A
R951
R972
D974
1SS119-041
4.7K
47K
Q971
CP981
QMFZ047-100-T
1SS119-041
D973
47uH
L783
10/16
R725
R708
R702
R703
R707
0.022
C2
0.1/50
C5
C10
8.2p
B69
FM.OSC
47K
47K
47K
47K
47K
10K
R9
C6
C7
C4
R14
R15
0.01
22K
R18
C11
IFREQ
0.1/50
C3
2200/16
C786
D719
14V
47K
R727
1.5M
4.7M
TAPEIN
SO/ST
F/R
Q5
KRC102M-T
MONO
*IC701
PROG
SD/ST
SCL
0.1/50
C8
0.01
SDA
4.7K
R724
DETACH
C15
R52
S.METER
LCD.CE
LCD.SCK
1K
R723
BUS.INT
R51
1/50
C131
TU.RCH
TU.LCH
LCD.SO
BAND
R61
1/50
C231
C9
R62
BUS.I/O
MUTE
0.01
IF.C
BUS.SO
BUS.SCK
MEM.DET
BUS.SI
S.METER
KEY2
MUTE
BUS.INT
BUS.SCK
BUS.I/O
BUS.SO
BUS.SI
C706
0.01
R710
R709
R712
1K
R761
1K
R763
*R752
10K
10K
*R760
*IC751
0.01
*C751
R764
47K
*C12
100p
4.7K
4.7K
3.3K
X701
QAX0406-001Z
R726
D716
1SS119-041
3.3K
3.3K
R713
R714
C14
100p
C702
22P
C701
27P
EO
FM.OSC
47K
IF.C
KEY0
KEY1
C703
100/6.3
C704
0.22
2SA1706/ST/-T
Q783
FM radio signal
AM radio si
nal
CD signal
Tape PB/Main signa
Parts are safety assurance parts.
When replacing those parts mak
sure to use the specified one.
-
Page 25
Display / switch circuit section
R633
R631
820
820
D623
VMC0335-001
CP701
QLD0145-001
LCD1
S8S9S10
KS-F160
COM2
COM3
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S52
COM1
S51
S47
S48
S49
S50
R641
R640
R634
820
D603
D602
R632
820
820
820
R643
330
820
R642
330
D621
D622
D618
D619
D620
R644
R645
D601
820
820
820
820
820
R647
R648
D611
D613 D612
R649
D609
D610
R650
R651
D624
R646
D614
D615
D616
10K
10K
10K
R621
R622
R623
510
510
QLL0092-001
QLL0092-001
D604
PL601
D605
PL603
D655
MA152WK-X
D654
MA152WK-X
D653
MA152WA-X
150k
D652
MA152WA-X
R601
270
S601
R606
270
S607
R612 R613
270 330
S614
C652
C651
C653
R661
R662
1.5k
S615
S602
0.1
4.7/6.3
680p
S608
47k
R603R602
390330
S603
S609
S616
R608
R614
390
390
R607
330
IC651
LC75823W
S604
S610
S617
R604
R609
R615
470
470
470
S605
S618
S611
R605
R610
R616
560
560
560
S606
S619
S612
R611
R617
820
820
S613
S620
2-5
Page 26
6
Printed circuit boards
Main board
KS-F160KS-F160
Front board(Forward side)
FSMW1067C
CP722
T04
AMANT
FMANT
AMDX/LO
FMDX/LO
GND
FMVT
GND
GND
AMVCC
GND
FM/AMOSC
FMVCC
FM/AMVCC
AMVT
GND
L-CH
R-CH
GND
NC
SEEK/STOP
S.METER
SD/ST
SNC
COMP.OUT
FM/AMVCC
MUTEDRIVE
D623
C105
CP721
31
7
8
CJ921
D771
J1
C771
R771
D719
TU1
R773
R772
C773
R3
R2
5
L1
C3
D704
R715
C5
10
15
C4
C6
20
C7
C15
25
Q5
B
D705
R716
R717
C786
D706
D2
D1
R18
C980
C10
C772
E
B
R774
R7
B
E
Q771
Q772
C2
E
D792
R9
C11
R14
E
R712
D711
1
214
E
C1
Q1
B
R1
R6
R4
B
Q3
R5
B
Q2
R17
D791
R15
R713
R714
R708
E
C8
R724
C706
R725
L782
R720
CJ701
C9
D707
4
6
6
R51
R52
R63
C14
R709
C12
R718
D708
15
R719
D709
D981
CP751
C132
D716
C934
C233
C236
C131
R132
R131
C136
16
17
C235
R61
C933
R710
64
65
C704
C703
C133
1
IC931
C232
R54
R53
C231
R62
R64
R707
R702
C13
R703
R726
R723
R792
C705
D786
FSMW1067B
C203
R204
R201
C707
C135
C134
1
32
C237
C234
C238
R265
EB
Q261
D261
R761
41
1
80
C701
R763
C702
X701
1
R104
R101
C103
IC901
8
C205
1
R
S.GND
L981
C137
C150
C138
R721
R722
C260
C250
R232
R231
R263
Q161
Q971
BE
BE
R972
D974
R165
R727
D713
D701
25
24
1
14
C751
R752
R760
R759
R756
R757
L
C160
E
R931
R103
D714
R203
GND
D161
R789
R785
R762
R163
Q784
D715
F/R
C971
C104
R901
9V
R164
C901
6
C101
1
C102
CJ901
5
C204
C201
C202
CP901
CP981
D718
6
R951
C981
12
8
C982
C986
23
22
IC981
2
1
C988
Q787
D784
C983
R797
E
Q783
B
C985
E
B
Q781
C987
C783
C781
C984
D785
CN721
1
B
9
1
R787
C931
C932
C262
C252
R251
R262
R261
R162
R264
R161
R152
R151
C951
EB
R790
Q972
E
B
R795
Q789
R796
B
D781
D782
R990
L781
Q987
EB
BE
Q988
R788
R755
R751
R754
7
IC751
8
R753
R758
R252
C162
C152
C972
R786
EB
Q989
D973
R783
L783
E
Q782
R764
C784
C785
R971
B
R784
D990
R704
B
E
Q701
D705
12
IC781
1
S601
R601
S03
R640
R641
R643
R642
D618
S607
R605
FSMW1077A
R606
D619
R603
R604
S602
R602
D620
S603
D622
D621
S604
S605
D605
D604
S606
Front board(Reverse side)
D623
S601
R601
S03
R640
R641
R643
R642
D618
S607
R605
FSMW1077A
R606
D619
R603
R604
S602
R602
D620
S603
D622
D621
S604
S605
D605
D604
S606
PL601
PL601
D653
R644
R648
R645
PL603
LCD1
D603
R607
R608
S608
S609
LCD1
D603
R607
R608
S608
S609
D602
D602
R609
S610
R609
S610
D601
D601
R610
R610
D614
R611
D615
S611
S611
D614
S612
R611
S612
S613
D615
S613
D616
D616
D611
R612
S614
D611
R612
S614
D612
R613
S615
R644
R645
PL603
D612
R613
S615
D655
D613
D613
D624
D624
R617
R617
S618
D655
S619
S618
D609
S620
D610
R646
S619
R647
S617
D653
D609
S620
D610
R646
R647
S617
R649
R616
R615
S616
R648
R649
R616
R615
S616
2-
Page 27
Cassette mchanism boards
Mute Board
KS-F160
Direction switch board
L
R
C
-
Page 28
KS-F160
VICTOR COMPANY OF JAPAN, LIMITED
MOBILE ERECTRONICS DIVISIOIN
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan
(No.49659)
200111
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