Panasonic RQ-SX82V User Manual
SCHEMATIC DIAGRAM 1
NDIP
NDIP
NDIP
:POSITIVE VOLTAGE LINE :PLAY BACK SIGNAL LINE
MAIN CIRCUIT
A
MOTOR
A
SPEED
7
6
5
4
3
2
1
D12
MA2SD1000L
39K
R92
L
R
G
R93
VR2
R94
24K
10K(B)
18K
10K
R96
C157
0.033
TAPE SPEED
ADJ.
(MOTOR)
C150
0.22
R98
100K
TP4
B
R103
MOTOR
- ON
1.4V
1.4V
1.4V
1.4V
0V
0V
0V
0V
0V
0V
270
1.4V
IC4
LB11675V
MOTOR DRIVE
V
1
U
2
3
START
4
P GND
5
GND
Vcc1
6
OSC
7
VREF
8
VSP
9
IN+
10
OUT
11
12 13
RI
W
NC
NC
P GND
COM
FC
DR
PV
PU
PW
TC2
TC1
1.4V
24
23
22
21
20
C144
ZF2.2
0.2V
19
1.4V
18
17
16
15
C159
0.33
1.4V
14
1.4V
C7
2.5V150
R91
D
CCW
470K
HEAD CIRCUIT
B
Lch
PLAYBACK
HEAD
Rch
REV
FWD
FWD
REV
1
8
4
5
6
3
7
2
FWC1
1
1
5
5
3
3
4
4
2
2
6
6
TP14
TP10
TP9
TP13
TP11
TP12
C41
C40
C32
C33
A
B
680P
C
680P
D
E
680P
680P
F
SCHEMATIC DIAGRAM 2
NDIP
NDIP
NDIP
:FM SIGNAL LINE:POSITIVE VOLTAGE LINE :MAIN(TAPE/RADIO) SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
4V47
C43
4V47
TP54
C42
R23
C34
R29
R30
C35
R24
R169
220K
12K
0.022
6.8K
6.8K
0.022
12K
E' F
TPS_IN
C2
330P
IC2
AN7501FHQ-EB
PRE/DOLBY/ASC/
POWER AMP
C50
1500P
C55
1
C51
1
C52
6.3V2.2
0.5V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
S.B.
0V
1.4V
1.4V
C64
16V2.2
NOISE
FREE RET.
Vcc
37
38
39
40
25K 200K
41
42
43
BIAS
44
45
25K 200K
46
47
48
1 2 3 4 5 6 7 8 9 10 11 12
Z
Y
A
33K
33K
R78
R77
R26
150
D
E
C
F
B
R27
150
18K
R25
C29
0V
0V
Q20
UN9215TX
SWITCHING
(TAPE SELECT)
3300P
0V
Q25
UN9110TX
SWITCHING
(PRE MUTE)
R22
22K
1.4V
1.4V
R15
C15
18K
3300P
C46
4V22
0V
Q8
UN9215TX
SWITCHING
(TAPE SELECT)
C38
680P
Q66
RVTDTA143EUX
SWITCHING(S.B.)
TP19
C68
0.047
FWD/ REV
PRE MUT
NR
ON/OFF
TP20
1
C219
0V
C74
R52
R49
2.2K
C72
3300P
DOLBY BLOCK
DOLBY BLOCK
C73
3300P
R50
2.2K
R41
C56
15K
1
C61
0.01
1
15K
C79
VREF
R54 390K
R48
8.2K
RE OUT
0.01
160
100K
VREF
100K
160
ASC
C81 0.33
ASC
C83
C84
R53
390K
C80
0.33
0.015
0.015
1.4V
1.4V
C90
680P
C86
2700P
86K
86K
C87
2700P
TP21
C92
BST
C126
0.056
R170
1
27K
R47
RIPPLE FILTER
CONTROL
10K
D24
SB00703QTL
C95
680P
252627282930313233343536
AGC
1.4V
0.8V0.8V0.8V0.8V0.8V0V0.4V0.8V0.8V0.8V0.8V1.4V
1.4V0.7V0V0.8V0.8V0V0.4V0.8V0.8V0.8V0.8V1.4V
Q19
UN9215TX
SWITCHING
(TAPE SELECT)
0V
C98
C99
C88
RE OUT
1
1
(VOLUME)
1
VR1-1
50K(A)
VR1-2
50K(A)
C102
16V2.2
R172
0.8V
24
0.8V
23
0.8V
22
Lch
0.6V
21
1.4V
20
19
Rch
0.6V
18
C105
0.22
0V
17
1.4V
16
0.7V
15
C106
4V33
1.3V
14
1.4V
13
1.4V
0.5V
0.5V
1.3V
(1.3V)
0.5V
1.3V
(1.3V)
0.5V
47K
C103
0.068
C104
4V6.8
C134
0.33
2.5V100
C116
2.2
R66
2.2
R67
C135
2.5V100
0.33
C117
1.4V1.4V
0.7V
C111 4V22
Q30
2SB1295-6-TB
POWER SUPPLY
R60
220K
POWER _ON
PRE_MUTE
(0.6V)
0.6V
R80
1.2V
1K
1.3V
Q33
2SB1295-6-TB
POWER SUPPLY
0.47
C119
MUTE
XBS_ON
ASC
DOLBY
FWD/REV
Lch
Rch
RE OUT
RADIO ON
RE OUT
NOR/MET
B'
G'
H
R
M'
J
K
L
M
U
P
h
R
N
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