Panasonic RQ-SX83VGCS / RQ-SX83VGD Service Manual ▷ View online
VR1-1
50K(A)
VR1-2
50K(A)
(VOLUME)
C1
17
0.33
R67
2.2
C1
16
0.33
R66
2.2
C1
1
1
4V22
C1
19
0.47
Q30
2SB1295-6-TB
2SB1295-6-TB
POWER SUPPLY
C105
0.22
C106
4V33
4V33
C103
0.068
C95
680P
C99
1
C98
1
C88
1
C83
0.015
C86
2700P
C72
3300P
R49
2.2K
TP19
R52
15K
C74
1
C79
0.01
C80
0.33
R53
390K
C50
1500P
C52
6.3V2.2
R41
15K
15K
C61
0.01
C56
1
B
F
C
E
D
A
IC2
AN7501FHQ-EB
AN7501FHQ-EB
PRE/DOLBY/ASC/
POWER AMP
POWER AMP
C68 0.047
Q66
RVTDTA143EUX
RVTDTA143EUX
SWITCHING(S.B.)
R47
27K
C104
4V6.8
C51
1
C43
4V47
R30
6.8K
C35
0.022
R24
12K
R27
150
C38
680P
C46
4V22
R25
18K
C29
3300P
Q20
UN9215TX
UN9215TX
SWITCHING
(TAPE SELECT)
C55
1
R26
150
C42
4V47
R29
6.8K
C34
0.022
R23
12K
Q8
UN9215TX
UN9215TX
SWITCHING
(TAPE SELECT)
R22
22K
22K
R48
8.2K
8.2K
Q19
UN9215TX
UN9215TX
SWITCHING
(TAPE SELECT)
(TAPE SELECT)
Q25
UN9110TX
UN9110TX
SWITCHING
(PRE MUTE)
(PRE MUTE)
TP20
R50
2.2K
C84
0.015
C87
2700P
R54
390K
C81
0.33
R170
10K
C73
3300P
C126
1
C219
1
D24
SB00703QTL
C102
16V2.2
R172
47K
C92
0.056
C90
680P
C64
16V2.2
C135
2.5V100
C134
2.5V100
R15
18K
18K
C15
3300P
Z
J
K
L
M
N
G'
H
Q33
2SB1295-6-TB
2SB1295-6-TB
POWER SUPPLY
R80
1K
R
C2
330P
R169
220K
220K
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
Vcc
NR
ON/OFF
CONTROL
AGC
BIAS
DOLBY BLOCK
DOLBY BLOCK
VREF
100K
160
86K
ASC
VREF
100K
160
86K
ASC
RIPPLE FILTER
25K
200K
25K
200K
BST
16
15
FWD/ REV
PRE MUT
NOISE
FREE RET.
Y
1.4V
1.4V
0V
0V
0V
0V
0V
1.4V
1.3V
1.2V
0.6V
(0.6V)
1.4V
0.5V
0.5V
(1.3V)
0V
0.5V
0.5V
1.3V
1.3V
(1.3V)
1.4V
1.3V
0.7V
1.4V
0V
0.6V
1.4V
0.6V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0V
0.4V
0.8V
0.8V
0.8V
0.8V
1.4V
1.4V
0.7V
0V
0.8V
0.8V
0V
0.4V
0.8V
0.8V
0.8V
0.8V
1.4V
1.4V
1.4V
0.7V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.5V
1.4V
1.4V
0V
1.4V
1.4V
0.8V
SCHEMATIC DIAGRAM 2
:FM SIGNAL LINE
:POSITIVE VOLTAGE LINE
:MAIN(TAPE/RADIO) SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
TPS_IN
S.B.
FWD/REV
DOLBY
ASC
XBS_ON
POWER _ON
R60
220K
MUTE
RE OUT
RE OUT
Lch
Lch
Rch
Rch
TP21
R78
33K
R77
33K
E' F
TP54
R
RE OUT
P
U
h
RE OUT
RADIO ON
NOR/MET
PRE_MUTE
M'
B'
7
8
9
10
11
12
RQ-SX83V MAIN CIRCUIT DIAGRAM
13
RQ-SX83VGCS / RQ-SX83VGD
C129
1
TP3
Z1
RXACBPWB1GTR
RXACBPWB1GTR
1
2
3
5
4
S
G
D
L2
1
2
3
L3
Q22
2SK1067-4-TL
2SK1067-4-TL
AM RF AMP
100
C25
0.015
R16
220K
C26
22P
22P
C27
390P
C21
10P
R12
100K
TP2
C112
0.22
C91
0.1
C89 330P
CF3
C108
1
C107
330P
C1
15
2.5V100
C121
1
R72
3.3K
C125
0.1
CF1
CF2
C76
16V1
C220
0.033
R44
1.5K
C60
0.01
IC3
C1BB00000562
FM/AM RF AMP
IF,DET
IF,DET
14
12
11
10
8
7
6
5
4
3
2
1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
13
9
FM MPX
29
30
ST/ MO
FM/ AM
FM/ AM
AM
OSC
AM
MIX
FM
MIX
FM
RF
FM
OSC
PW
SW
SW
BUFF
TUN
IFD
ST
IFD
AF
FM
DET
AGC
AM
I F
1/ 16
BUFF
BUFF
FM
I F
SW
LEVEL
DET
AM
DET
IF
BUFF
RF Vcc
RF GND
Vcc
GND
R
C131
0.01
C137
0.022
C133
0.01
0.022
Y
Z
TP1
1.3V
0V
(0.2V)
0V
(1.5V)
0V
(0V)
C1
18
0.1
Q29
RVTDTA143XUX
RVTDTA143XUX
POWER SUPPLY
(0V)
1.3V
1.3V
(1.3V)
0V
(1.3V)
0V
(0V)
0V
(0V)
0.6V
(0V)
0V
(0V)
0.6V
(0.6V)
(1.3V)
(1.3V)
0.7V
(0.9V)
1.3V
(1.3V)
0.9V
(0V)
0V
(0V)
0.8V
(0.8V)
0.8V
(0.8V)
0V
(1.3V)
0V
(0V)
1.3V
(1.3V)
1.3V
(1.3V)
1.3V
(1.3V)
0.7V
(0.9V)
0V
(0.2V)
1.3V
1.3V
1.3V
SCHEMATIC DIAGRAM 3
:FM SIGNAL LINE
:POSITIVE VOLTAGE LINE
:MAIN(TAPE/RADIO) SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
:FM/AM Vcap LINE
C225
KB0.1
C77
KB0.1
C6
KB0.01
STEREO
MONO
R32
820
C63
0.1
Q1
UNR921BJTX
UNR921BJTX
POWER SUPPLY
R2
10K
R1
220
Q2,3
2SB1462STX
2SB1462STX
POWER SUPPLY
Q2
Q3
C142
0.1
0V
(2.9V)
3.6V
(2.9V)
2.9V
(2.2V)
3.6V
(2.9V)
3.6V
2.9V
(3.3V)
(2.2V)
2.9V
(0V)
(1.3V)
0V
100K
R11
10K
R5
KB0.01
C3
D4
KVDSVC203ATX
D5
KV1440TL2-3
R86
2.2K
R90
15K
Q34
4.7K
R3
ZF0.1
C5
ZF0.1
C1
C221
KB0.001
R174 4.7
C145
CC2P
C16
GC22P
L6
L6
CT1
C136
C59
4V 10
C140
KB0.001
R10
100K
100K
R6
D3
KVDSVC203ATX
C47
0.01
S2
TP8
TP7
TP15
TP22
H'
10K
R89
KB0.01
C143
1
3
4
6
F'
Q
O
I'
G'
W
j
AM ON
K'
SD
RE OUT
FM_IN
14
15
16
17
18
19
RQ-SX83V MAIN CIRCUIT DIAGRAM
14
RQ-SX83VGCS / RQ-SX83VGD
IC5
C2ABFC000052
C2ABFC000052
SYSTEM CONTROL/
LCD DRIVE
LCD DRIVE
Q45
UN9110TX
UN9110TX
TAPE END DET.
Q60
2SB1462STX
2SB1462STX
BATTERY DET.
LCD1(RSL5274-T)
1 2
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LCD DISPLAY
3 4
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
D17
CNB1002001AU
R121
680
R1
17
1M
Q43
2SD2216RTX
2SD2216RTX
TAPE END DET.
XTAL1
(75kHz)
C158
15P
C160
15P
E'
G'
F'
j
R1
14
470K
R109
560K
R108
560K
R166
470K
S4
(HOLD)
REV
STOP
FWD
S5
(MECHANISM DET.
FWD/ STOP/ REV)
C190
0.1
R104
10K
C162
0.1
R101
47
Q37
2SD2436STXRA
2SD2436STXRA
SOLENOID DRIVE
C172
0.01
C167
0.01
C164
0.01
C165
0.01
R127
15K
R161
150K
R162
180K
R1
16
470K
T
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
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
S.B.(H)
PJ2
CS
PJ1
REC
MUTE
ON(L)
PJ0
REC(L)/
PLA
Y(O)
P13
SX-97
P12
TV(L)
P1
1
AM
ON(L)
P10
SPEED
ON(L)
PG3
1/2
SPEED(H)
PG0
CCW
ON(L)
PG1
MOTOR
ON(L)
PG2
S16
S15
S14
S13
S12
S1
1
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
COM4
COM3
COM2
COM1
BRES
HCTR TPS-IN
V
DD
FM IN
AM IN
Vss
EO
TEST1
X IN
X
OUT
TEST2
PA
3
S
D
P
A
2
REC/
P
AUSE
P
A
1
V
DET
P
A
0
OPEN
PB3
SOL(L)
PB2
XBS
ON(H)
PB1
DISCHARGE(L)
PB0
RADIO
ON(L)
PC3
DOLBY
ON(L)
PC2
ASC
ON(L)
PC1
REC
CH.REV(L)
PC0
REC
CH.FWD(L)
PL3
HOLD
INT1/ PD1
T-END(H/L)
INT0/ PD0
DATA I/O
PH-CTL PE3
POWER ON PE2
MUTE(L) PE1
BEEP/ PE0
REMOTE ADI3/ PF3
BATTERY(H) PF2
KEY ADI1/ PF1
Vcc CHK ADI0/ PF0
MODEL3 SI1/ PK3
MODEL2 SO1/ PK2
MODEL1 SCK1/ PK1
PARA(H) PK0
Vss
V
DD
RAM
VDC3
VDC1
VADJ
PL2
DECK-REV(L)
PL1
DECK-FWD(L)
PL0
PRE-MUTE
PD3
BACKUP
I
(H)
PD2 RADIO D/
D
PJ3
R1
13
3.3K
Q69
DTC143TETL
DTC143TETL
SWITCHING
Q46
2SD2436STXRA
2SD2436STXRA
SWITCHING
C205
0.01
C208
0.01
R180
27K
D23
MA110TX
C218
4V47
B'
R132
18K
R134
470K
D18
MA720TX
C197
4V47
C201
0.1
R133
4.7
L1
1
C200
1
R135
330K
A
B
E
F
G
I
J
K L
C169
0.01
C171
0.01
C173
0.01
C174
0.01
C183
0.01
C185
0.01
C189
0.01
VR3
R130
100K
100K
D B A
O
R106
10K
C182
0.01
M
SOLENOID
N
J
Q61
2SD2216RTX
2SD2216RTX
BATTERY DET.
1
2
3
4
R99
470K
C151
0.01
(RES)
OFF
ON
TP23
TP6
1.4V
1.4V
1.3V
0.7V
0.7V
(0.7V)
0V
0V
0V
1.2V
1.2V
(1.2V)
1.2V
0V
1.4V
1.4V
1.3V
1.4V
1.4V
0V
0V
0V
0V
0.6V
1.3V
0V
(0V)
0.4V
0V
0V
0.9V
(0.9V)
0V
0V
0V
(0.6V)
0V
0V
0.6V
(0V)
1.4V
0.5V
1.3V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
0V
1.4V
1.4V
0V
0V
1.3V
0V
0V
0V
1.3V
(0V)
1.4V
1.4V
0.2V 0.8V 0.2V (1.4V)
3V
3V
2.7V
0V
1.4V
1.4V
2.8V
1.4V
1.4V
1.4V
0V
1.4V
2.4V
1.4V
1.3V
1.4V
1.4V
1V
0.6V
0V
3V
0V
2.4V
0.5V
0V
1.4V
0V
0V
0V
0V
0V
(1.3V)
0V
1.4V
0V
2.8V
T
6.8ms.
2.8V
1.4V
0V
T
13.6ms.
0.7V
P-P
P-P
F=75kHz
0.4V
P-P
P-P
F=75kHz
SCHEMATIC DIAGRAM 4
:FM SIGNAL LINE
:POSITIVE VOLTAGE LINE
:MAIN(TAPE/RADIO) SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
:FM/AM Vcap LINE
XBS ON
RADIO ON
DOLBY
ON
ASC
PRE_MUTE
TPS_IN
AM_IN
FM_IN
SD
CCW
MOTOR_ON
SPEED
K'
AM_ON
S.B.
FWD/REV
R9 82K
M'
MUTE
POWER ON
R183
22K
DD1
BACK UP1
V DET
R178 10K
H
DISCHARGE
PARA
1.4V
1.4V
Q68
RVTDTC114TUX
R167
0
RJ4 0
20
21
22
23
24
25
RQ-SX83V MAIN CIRCUIT DIAGRAM
15
RQ-SX83VGCS / RQ-SX83VGD
R143
82K
S6
(PRESET/
T
APE
MODE)
S8
(
-
/
REW
,DOLBYNR,4)
S7
(+/F
F
,1REP
,5)
R1
15
330
C191
0.22
C153
1000P
C152
16V1.5
Q35,36
2SD2216STX
2SD2216STX
FM/ AM LOOP
FILTER
Q36
Q35
R95
15K
15K
S
G
D
C143
0.1
C156
1000P
R107
10K
C176
ZF0.47
C179
0.022
R110
4.7K
R112
470
C187
0.022
D14
MA8120MTX
D15
MA110TX
D16
MA720TX
R1
18
47
C177
0.01
C180
1
L8
C186
10V3.3
C188
0.022
C184
0.22
Q41
2SD1048X7TX
2SD1048X7TX
DC-DC CONV.
Q42
2SD1328STXRA
2SD1328STXRA
DC-DC CONV.
Q44
2SB815B7TX
2SB815B7TX
DC-DC CONV.
Q40
2SK303V3TB
2SK303V3TB
STABILIZER
L9
C192
1
C193
16V1
L10
C196
1
Q49
2SB1295-6-TB
2SB1295-6-TB
POWER SUPPLY
R102
1K
R146
47K
R148
56K
R154
82K
R156
100K
100K
S9
(OFF
/
/
,
BLANK
CONTROL,3)
S10
(T
APE/
,
2
,2)
S1
1
(RADIO
ON/
BAND,
/,
1
)
S13-1
(METAL/NORMAL)
IC7
C0EBC0000034
C0EBC0000034
BATT. IN DET.
3
2
1
Vss
V IN
V OUT
S
G
D
C124
2.5V100
R158
22K
Q52
XP151A13A0MR
XP151A13A0MR
BATTERY PARA DET.
Q50
RVTDTA123JUX
BATTERY PARA DET.
Q67
DTC114TETL
BATTERY PARA DET.
R153
100
C214
4V47
R179
1K
R155
1M
R4
47K
CN2
JK2
HEADPHONES
HEADPHONES
R131
470
R120
15K
R125
220K
220K
R128
100K
100K
R126
470K
R129
15
IC8
XC62HR2902MR
XC62HR2902MR
REGULATOR
R149
180K
180K
R150
150K
C
L
Re
V
R
G
A
B
S13-2
(OPEN/ CLOSE)
C138
330P
G
N
Q17
2SB815B7TX
2SB815B7TX
VOLTAGE
COMPARATOR
COMPARATOR
R122
680
E
F
H
L13
L14
L15
C215
100P
C216
100P
C217
100P
R139
4.7K
R142
4.7K
C194
0.01
C198
0.01
K
N
Q47
2SB1462STX
2SB1462STX
POWER SUPPLY
Q48
2SD2216RTX
2SD2216RTX
POWER SUPPLY
CONT.
CONT.
J
C203
0.01
R137
0
I
C202
220P
R136
1K
1
2
3
NC
CE
VIN
5
4
GND
VOUT
C195
82P
C199
82P
R89
10K
10K
I'
R182
470K
L
d
H
G'
Q
H'
D19
MA720TX
Q51
2SA1745-7-TL
2SA1745-7-TL
VOLTAGE COMPARATOR
R151
220K
R152
47K
Q53,54
2SD2216RTX
2SD2216RTX
VOLTAGE
COMPARATOR
COMPARATOR
Q53
C213
0.1
Q56
UN9215TX
UN9215TX
VOLTAGE
COMPARATOR
COMPARATOR
Q55
UNR921BJTX
UNR921BJTX
VOLTAGE
COMPARATOR
COMPARATOR
C204
1
Q54
M
L12
C212
KB0.1
TP32
TP41
C206
330P
TP18
TP42
TP36
TP37
1.4V
0V
1.4V
1.4V
0V
0V
3V
3V
3V
0V
1.4V
1.3V
1.4V
1.4V
0.7V
0.6V
0V
2.8V
1.4V
2.4V
2.8V
2.4V
2.4V
2.4V
0V
0V
1.3V
2.4V
3V
1.4V
0V
0V
0V
0V
0V
(2.9V)
3.1V
3.5V
3.6V
(3.3V)
3V
1.4V
1.4V
0.4V
1.3V
1.4V
(1.4V)
1.3V
0.7V
0.7V
(0.7V)
0.4V
0V
0V
(0V)
0.4V
0V
0V
(0V)
0.4V
0V
0V
0V
(0V)
0.4V
1.3V
1.4V
(1.4V)
0.3V
0.6V
0V
(0.6V)
0V
1.5V
3.7V
3.7V
(6.9V)
10.2V 12.4V 12.4V
(12.4V)
0V
2.2V
(7.6V)
3.3V
3.7V
(6.9V)
0.5V
(0.5V)
0.5V
(0.5V)
3.7V
(6.9V)
(0.9V)
0.9V
SCHEMATIC DIAGRAM 5
:FM SIGNAL LINE
:POSITIVE VOLTAGE LINE
:MAIN(TAPE/RADIO) SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
:FM/AM Vcap LINE
RECHARGEABLE
BATTERY 1.2V
BATTERY 1.2V
BATTERY CASE
BATTERY 1.5V
(R6/LR6,"AA",
UM 3)
C217
100P
W
NOR/MET
Lch
Rch
1
3
4
6
DD1
BACK UP1
DISCHARGE
PARA
V.DET
A
B
C
D
E
F
G
H
26
27
28
29
30
31
RQ-SX83V MAIN CIRCUIT DIAGRAM
16
16
RQ-SX83VGCS / RQ-SX83VGD
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