Aiwa CS-131 VJ User manual

BASIC TAPE MECHANISM : TN-21ZVC-1727
STEREO RADIO
CASSETTE RECORDER
CS-131
S/M Code No. 09-994-327-2N1
VJ
SERVICE MANUAL
DATA

2
SPECIFICATIONS
•
Design and specifications are subject to
change without notice.
REF. NO PART NO. KANRI DESCRIPTION
NO.
ACCESSORIES/PACKAGE LIST
! 1 87-A80-081-010 AC CORD SET ASSY,EZ BLK
2 8Z-CS4-910-010 IB,V(ER)B

3
REF. NO PART NO. KANRI DESCRIPTION
NO.
REF. NO PART NO. KANRI DESCRIPTION
NO.
ELECTRICAL MAIN PARTS LIST
IC
87-A20-851-040 C-IC,TA2111F
87-A20-569-010 IC,BA3308
87-017-916-010 IC,BU4066BC
87-A20-946-040 C-IC,MM1434XF
87-CD7-602-010 IC,TA8227P
TRANSISTOR
87-026-462-080 TR,2SC1740
89-318-155-080 TR,2SC1815 (0.4W)
87-CD7-603-080 TR,SS8050
DIODE
87-020-465-080 DIODE,1SS133 (110MA)
87-020-605-080 DIODE,1SS135
87-070-136-080 ZENNR,MTZJ5.1
87-017-931-080 ZENNR,MTZJ5.6
87-001-783-010 DIODE, 1N4002
MAIN C.B
BPF1 8Z-CS3-673-010 FLTR,ANT BPF-V
C104 87-018-208-080 CAP 0.047-50F
C108 87-A10-136-010 CAP,CER 10P-50K CH
C113 87-010-401-080 CAP, ELECT 1-50V
C114 87-A10-176-010 CAP,CER 1000P-50 M D
C115 87-018-209-080 CAP, CER 0.1-50V
C116 87-018-209-080 CAP, CER 0.1-50V
C117 87-010-401-080 CAP, ELECT 1-50V
C118 87-010-112-080 CAP, ELECT 100-16V
C127 87-015-695-080 CAP,ELECT0.1-50
C128 87-010-404-080 CAP, ELECT 4.7-50V
C132 87-010-545-080 CAP, ELECT 0.22-50V
C133 87-010-545-080 CAP, ELECT 0.22-50V
C134 87-018-209-080 CAP, CER 0.1-50V
C142 87-018-209-080 CAP, CER 0.1-50V
C301 87-010-545-080 CAP, ELECT 0.22-50V
C302 87-010-402-080 CAP, ELECT 2.2-50V
C303 87-010-402-080 CAP, ELECT 2.2-50V
C306 87-018-109-080 CAP, CER 22P-50V
C307 87-018-109-080 CAP, CER 22P-50V
C308 87-010-260-080 CAP, ELECT 47-25V
C309 87-010-260-080 CAP, ELECT 47-25V
C310 87-010-412-080 CAP, ELECT 10-25V
C311 87-010-412-080 CAP, ELECT 10-25V
C316 87-010-404-080 CAP, ELECT 4.7-50V
C317 87-010-112-080 CAP, ELECT 100-16V
C318 87-010-412-080 CAP, ELECT 10-25V
C319 87-018-205-080 CAP, CERA-SOL 0.022
C320 87-018-205-080 CAP, CERA-SOL 0.022
C321 87-010-112-080 CAP, ELECT 100-16V
C322 87-010-112-080 CAP, ELECT 100-16V
C323 87-018-205-080 CAP, CERA-SOL 0.022
C324 87-A10-176-010 CAP,CER 1000P-50 M D
C325 87-010-101-080 CAP, ELECT 220-16
C329 87-018-209-080 CAP, CER 0.1-50V
C331 87-010-101-080 CAP, ELECT 220-16
C332 87-010-412-080 CAP, ELECT 10-25V
C401 87-010-401-080 CAP, ELECT 1-50V
C402 87-010-401-080 CAP, ELECT 1-50V
C403 87-010-545-080 CAP, ELECT 0.22-50V
C404 87-010-545-080 CAP, ELECT 0.22-50V
C405 87-010-401-080 CAP, ELECT 1-50V
C406 87-010-401-080 CAP, ELECT 1-50V
C407 87-010-260-080 CAP, ELECT 47-25V
C408 87-010-112-080 CAP, ELECT 100-16V
C409 87-018-134-080 CAPACITOR,TC-U 0.01-16
C410 87-010-412-080 CAP, ELECT 10-25V
C411 87-010-260-080 CAP, ELECT 47-25V
C412 87-018-134-080 CAPACITOR,TC-U 0.01-16
C413 87-018-134-080 CAPACITOR,TC-U 0.01-16
C414 87-018-134-080 CAPACITOR,TC-U 0.01-16
C415 87-018-134-080 CAPACITOR,TC-U 0.01-16
C416 87-010-402-080 CAP, ELECT 2.2-50V
C417 87-018-127-080 CAP, CER 470P-50V
C418 87-010-402-080 CAP, ELECT 2.2-50V
C419 87-010-402-080 CAP, ELECT 2.2-50V
C420 87-018-127-080 CAP, CER 470P-50V
C470 87-010-260-080 CAP, ELECT 47-25V
C501 87-010-401-080 CAP, ELECT 1-50V
C502 87-010-401-080 CAP, ELECT 1-50V
C505 87-010-112-080 CAP, ELECT 100-16V
C506 87-010-112-080 CAP, ELECT 100-16V
C507 87-010-112-080 CAP, ELECT 100-16V
C508 87-010-112-080 CAP, ELECT 100-16V
C509 87-010-235-080 CAP,E 470-16 SME
C510 87-010-235-080 CAP,E 470-16 SME
C513 87-010-101-080 CAP, ELECT 220-16
C514 87-010-112-080 CAP, ELECT 100-16V
C601 87-018-205-080 CAP, CERA-SOL 0.022
C602 87-018-205-080 CAP, CERA-SOL 0.022
C603 87-018-205-080 CAP, CERA-SOL 0.022
C604 87-018-205-080 CAP, CERA-SOL 0.022
C605 87-018-205-080 CAP, CERA-SOL 0.022
C606 87-015-997-010 CAP, ELECT 2200UF-16V
C640 87-010-404-080 CAP, ELECT 4.7-50V
C641 87-010-404-080 CAP, ELECT 4.7-50V
CN302 8Z-CS3-619-010 CONN,2P MIC
CN305 8Z-CS3-613-010 CONN,2P PLAY SW.
CN501 8Z-CS3-604-010 CONN,3P V SP
CN601 8Z-CS3-607-010 CONN,2P V POWER
IFC1 S2-900-371-000 FLTR,SFU465B
IFC2 87-008-261-010 FILTER, SFE10.7MA5-A
IFC3 87-008-261-010 FILTER, SFE10.7MA5-A
J1 8Z-CS3-603-010 JACK, ST W/SW HP ZCS-3
L101 8Z-CS3-648-010 BAR-ANT,MW
L102 8Z-CS3-655-010 COIL,MW OSC
L108 8Z-CS3-669-010 COIL,FM OSC-EZ
L109 8Z-CS3-650-010 COIL,IFT AM
L301 8Z-CS3-612-010 COIL, BIAS OSC
L302 87-003-152-080 COIL, 100UH
LED605 87-A40-248-080 LED,SEL2210STP7 RED
MIC1 8Z-CS3-628-010 MIC, ZCS-3
SW201 8Z-CS3-659-010 SW, TU-3BAND
SW202 8Z-CS3-610-010 SW, BEAT CUT
SW301 8Z-CS3-609-010 SW, PB/REC
SW302 8Z-CS3-611-010 SW, FUNCTION
SW401 8Z-CS3-600-010 SW, Q SOUND
TC105 87-018-151-010 CAP,TC U 20P-50 J CH UP050
TC107 87-018-151-010 CAP,TC U 20P-50 J CH UP050
PVC1 8Z-CS3-644-010 TUN-CAP, V
VR501 8Z-CS3-601-010 VR,RTRY 50K MAIN

4
• Regarding connectors, they are not stocked as they are not the initial order items.
The connectors are available after they are supplied from connector manufacturers upon the order is received.
88
A
Resistor Code
Chip Resistor Part Coding
Figure
Value of resistor
Chip resistor
Wattage Type Tolerance
1/16W
1/10W
1/8W
1608
2125
3216
5%
5%
5%
CJ
CJ
CJ
Form LW t
1.6 0.8 0.45
2 1.25 0.45
3.2 1.6
108
118
128
: A
: A
CHIP RESISTOR PART CODE
0.55
Resistor Code
Dimensions (mm)
Symbol
1/16W 1005 5% CJ 1.0 0.5 0.35 104
Lt
W

65
TRANSISTOR ILLUSTRATION
ECB EBC
SS80502SC1740
IC BLOCK DIAGRAM
IC, TA2111N
24 23 22 21 20 19 18 17 16 15 14
1110
9
8
7
65
4
32
112
13
AM
MIX
FM
MIX
AM
OSC
FM
OSC
AF
BUFF
AM
DET
FM
IF
AM
IF
LEVEL
DET
FM
DET
TUN
LED ST LED
AGC
FM
RF
FM RF IN RF GND MIX OUT AGC VCC GND TUN LED ST LED QUADAM
LOW CUT AM IF IN FM IF IN
FM
MUTE
ST/MO
FM/AM
AF
VCO
DECODE
DIVIDE
AM RF IN FM RF
OUT FM OSC AM OSC AFC LPF2 LPF1 L-OUT R-OUTRF VCC DET OUT MPX IN
IC, BA3308
IC, MM1434XF
IC, BU4066

123456789
10 11 12 13 14
A
B
C
D
E
F
G
H
I
J
K
87
WIRING
M
1
CNP301
BAND
L101
(MW)
WHT
4
CNP305
12
CNP303
41
CNP601
12
AC
AC 230V. 50Hz
NOTE
RED
RED
RED
BLK
BLK
J2
PT601
POWER
TRANSFORMER
BAT
R14x6
DC9V
BRN
BRN
BLU
BLU
RED
BLK
S1
(PLAY SW)
S2
(MOTOR SW)
M1
(DECK MOTOR)
GND
RED
BLK
LCH
RCH
RPH
EH
(BAR-ANT)
SW301
PB
REC
SW101
FM MODE/OSC
SW202
MIC
MIC1
MW FM1 FM2
FM ANT
CNP302
12
WHT
FM MONO
FUNCTION
SW602
Q SOUND
SW401
PHONES
J1 OPE/BATT LED605 VOL
VR501
POWER
STANDBY FM STEREO
RADIO
TAPE
OFF
ON
CNP501
1
3
ORG BLU
BLK
SP3
SP4
SP1
(LCH)
SP2
(RCH)
(RCH)
(LCH)
1
13
3
4
1
6
791012
1
1
2
9
1
8
9
14
17
8
14
12
1
4
1
12 13
24
VC1
VC2VC3
VC4
TC1
TC2
TC3
TC4
MAIN BOARD (PARTS SIDE)
123
+
_
(-6) (-2) (-1)
(-5) (-3) (-4)
23
1
C112

109
SCHEMATIC DIAGRAM
2.2 1/2W
AC
~
AC 230V
50Hz
POWER
TRANSFORMER
C604
0.022
0.022
0.022
0.022 0.022
CNP601
CN601
25
RR508
LR507 J1
PHONES
SP1
(L CH)
SP3
(L CH)
SP4
(R CH)
SP2
(R CH)
CN501
CNP501
0.15(M)
P
RC417 470P
0.01
0.01 0.01 0.01 0.01
AF AMP
AF AMP
Q SOUND
OFF ON
L102,TC3
MW FREQ. ADJ. SW101
BAND
L101,TC4
AM SENS. ADJ.
L103,TC105
FM 1 FREQ. ADJ.
L104,TC2
FM 2 FREQ. ADJ.
L106,TC1
FM 2 SENS. ADJ.
L105,TC107
FM 1 SENS. ADJ.
L109
AM IF ADJ.
MIC1
MIC
L301
BIAS FREQ. ADJ.
MAIN C.B
FM ANT
POWER
STANDBY RADIO TAPE
SW302
FUNCTION
SW202
FM MODE/OSC
SW301 (A-H)
VR501
VOL
LED605 OPE/BATT
1800P(M)
1N4002
C319 0.022
0.022
REG.
CN305
CNP305
CNP303
CN303
S1
S2
M1
(DECK MOTOR)
SWITCH
INV. DELAY SWITCH
C329
0.1
0.022P(M)
2SC1740
BIAS OSC
0.01
3300P
(M)
0.01
0.01
1800P
1800P
CNP302
CN302
CNP301
CN301
X
EH
50
2700P
50
2700P
(M)
0.001
0.022
SWITCH ST
FM STEREO
FM MONO
PB
REC
J2
+
-
2
4
3
MW FM1 FM2
PVC101
TC1-4
VC1-4
TUNING
47/25
47/25
47/25
47/25

VOLTAGE CHART
1211

< TAPE RECORDER SECTION >
8. Tape speed Adjustment
Condition: • Test tape: TTA-100
• Test point: PHONES JACK
• Adjustment location: SFR of deck motor
Method: Play back the test tape and adjust so that the
output frequency is 3000Hz.
9. Azimuth Adjustment
Condition: • Test tape: TTA-320
• Test point: PHONES JACK
• Adjustment location:Azimuth adjustment
screw
Method: Play back the test tape and adjust so that the
output is maximum.
10. AC Bias Adjustment
Condition: • Test tape: TTA-630
• Test point: TP1
• Adjustment location: L301
Method: Set up the recording mode. Adjust L301 so that
the TP1 becomes 70kHz.
PRACTICAL SERVICE FIGURE
< RADIO SECTION >
Sensitivity:
(IHF, THD 3%) FM1 Less than 25dB
FM2 Less than 25dB
(S/N 20dB) MW Less than 60dB
Intermediate frequency: FM 10.7MHz
AM 465kHz
< TAPE RECORDER SECTION >
Distortion: Less than 3% (PB, 1kHz)
Less than 8% (REC/PB, 1kHz)
S/N ratio: More than 40dB
(PB, REC/PB, AC, DC)
Erasing ratio: More than 30dB
Wow & Flutter: Less than 0.35% (RMS)
Take-Up Torque: 20-60g-cm (FWD, REV)
F.F & REW Torque: 55-120g-cm
Test tape: TTA-100
NORMAL TTA-602
TTA-210
TTA-257
ELECTRICAL ADJUSTMENT
< RADIO SECTION >
1. AM IF Adjustment
L109 ....................................................................... 465kHz
2. FM1 Tracking Adjustment
L105 ........................................................................65MHz
TC107......................................................................74MHz
3. FM1 Frequency Range Adjustment
L103 ........................................................................64MHz
TC105......................................................................75MHz
4. FM2 Tracking Adjustment
L106 ........................................................................88MHz
TC1........................................................................109MHz
L101
L301
L102
L109
PVC1
TC3 TC2
L104
L106
L105
TC1
TC4
014
6
76
4
MAIN C.B
3 2
89
M3
TC107
TC105
L103
5. FM2 Frequency Range Adjustment
L104 ........................................................................87MHz
TC2........................................................................106MHz
6. AM Tracking Adjustment
L101 ....................................................................... 600kHz
TC4....................................................................... 1400kHz
7. AM Frequency Range Adjustment
L102 ....................................................................... 515kHz
TC3....................................................................... 1635kHz
1413

1615
MECHANICAL EXPLODED VIEW 1/1
1
2
5
3
10
4
6
7
8
913
1415 16
17 17
18 44
36
37
E
E
E
B
E
H
A
E
E
H
11
EH
H
I
E
17
20
23 27 28
29
30
31
30
30
40
39
38
19
33
35
34
32
22
24
26
17
E
10
12
TN-21ZVC-1727
E
E
E
E
P.C.B
E
E
E
17
G
F
F
F
F
F
C
13
37
25