Panasonic RQ-SX52 User Manual
Lch
NDIP
NDIP
NDIP
PLAYBACK
HEAD
Rch
B
REV
FWD
FWD
REV
HEAD CIRCUIT
1
8
4
5
6
3
7
2
1
5
3
4
2
6
A
SCHEMATIC DIAGRAM-1
FWC1
1
TP34
5
C5
C3
680P
680P
TP35
3
4
2
6
C2
C6
TP33
680P
680P
TP36
TP37
+ B Voltage Line
C9
3900P
R2
180
3900P
R3
10K
R9
10K
C12
2.5V33
C16
C11
2.5V33
C14
R5
C15
R7
Playback Signal
A
15K
0.022
5.6K
5.6K
0.022
15K
C18
C20
1
B
C
D
E
F
G
H
I
1
J
K
L
M
R4
R6
1
MOTOR
2
3
4
5
R10
VR1
R8
27K
10K(B)
12K
Tape Speed
Adjustment VR
D2
MA2SD1000L
R11
39K
R15
100K
C26
C17
0.22
0.033
R17
IC1
LB11675V
MOTOR DRIVE
PGND
COM
TC2
TC1
1.4V
24
W
23
NC
22
NC
21
20
C4
2.2
0.6V
19
FC
1.3V
18
DR
17
PV
16
PU
15
PW
C27
0.33
1.3V
14
1.3V
13
A
B
C
1.4V
1
V
1.4V
U
2
0V
START
3
PGND
4
GND
5
1.5V
Vcc1
6
0.4V
7
OSC
0.5V
8
VREF
0.2V
9
VSP
0.2V
10
IN+
0V
11
OUT
0V
12
RI
270
R18
10K
1.5V
A
NDIP
NDIP
NDIP
SCHEMATIC DIAGRAM -2
M
A
C23
0.047
IC2
AN7501FHQ
PRE/DOLBY/ASC/
POWER AMP
Vcc
0V
37
C23
0.047
0.8V
38
C21
10V2.2
0.6V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.8V
0.6V
0.8V
39
40
R1
41
42
F1
BIAS
43
F2
44
45
R2
46
47
48
1 2 3 4 5 6 7 8 9 10 11
ZF1.0
C22
B
C
D
E
F
G
H
I
J
K
TP27
L
+ B Voltage Line
1
C29
C31
0.01
15K
R20
TP26
R21
1.8K
C32
3300P
DOLBY BLOCK
FWD/REV
PRE MUTE
NR
ON/OFF
C33
3300P
R22
1.8K
15K
R19
C30
0.01
1
C28
C8
C10
680P
2.5V15
390K
R23
Playback Signal
R24
390K
C34
0.33
ASC
BST
C35 0.33
R12
10K
C43
C44
R26
1
1.5K
C45
1
C37
680P
C36
0.1
C38
680P
0.8V0.8V0.8V0.7V0V0.7V0.8V0.8V0.8V0V0.8V
252627282930313233343536
0.7V
24
0.8V
23
0.8V
22
0.6V
21
1.5V
20
TP19
19
0.6V
18
C46
AGC
RIPPLE
FILTER
CONTROLASCDOLBY BLOCK
0V
17
0.22
1.3V
16
0.8V
15
C42
2.5V22
1.2V
14
0V
13
12
1V1V0.8V0.7V0V0.7V0.8V0.8V0.8V1.1V0.7V
220K
R14
0.47
C39
1
JK
R25
1.5K
VR2-1
50K(A)
C40
1
6.3V10
C47
R36
C71
680P
(VOL)
VR2-2
50K(A)
R62
47K
C49
ZF1.0
C51
0.068
4V6.8
C50
Q4
2SB1295-6-TB
POWER SUPPL
1.3V 1.5V
0.8V
470K
4V22
C52
R34
3.9K
R33
C56
2.2
0.33
C57
2.2
R32
0.33
C55
A
B
0.1
1.5V
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