Panasonic SA-DK3 Service Manual page 153

SCHEMATIC DIAGRAM-15
R1105
270
8.8V
((0V)) ((9.4V))
36 35
Vcc
IC1101
M51167AFP-TB
P.B EQ/REC AMP/
ALC/TPS AMP
1 2
((0V))
Q1203
2SD965RTA
MOTOR DRIVE
R1206
((0V))
220
((0.8V))
1
:POSITIVE VOLTAGE LINE
A B
C1123
1800P
C1115
R1109
0.033
4.3K
9.3V 4.5V 4.5V 4.8V
((9.9V)) ((0V)) ((1.1V)) ((4.8V)) ((4.8V)) ((5.1V))
30
34 33 32 31 29 28
B
C
PB
A
A
PB
C
AGC B
OFF
3 4 5 6 7 8
((4.7V)) ((0V)) ((1.1V)) ((4.8V)) ((4.8V)) ((5.1V)) ((5.1V))
4.4V 4.5V 4.8V
C1116
R1110
0.033
4.3K
E D C
Q1108
DTC144TKA146
P.B EQ/REC EQ
(CrO /H.SPEED)
2
14.6V
9.1V
W1200
2
M
MOTOR
:RECORDING SIGNAL LINE
C1129 C1131 C1135 C1146
820P 820P 1000P 16V10
R1115
390K
C1127 R1117
0.01 270K
C1125
0.047
4.8V 5.0V 4.6V 4.9V
((5.1V)) ((5.4V)) ((4.9V)) ((5.2V)) ((5V)) ((0V)) ((4.3V))
25
27 26 24 23 22
REC B A
PRE
C
SW
ALC
PRE
REC
R/P
9
10 11 12 13 14 15
((5.4V)) ((4.9V)) ((5.2V)) ((5.0V)) ((0V)) ((0V))
4.8V 5.0V 4.6V 4.9V 4.9V 4.8V
C1126
0.047
C1128 R1118
0.01 270K
C1124
1800P
R1116
390K
C1130 C1132 C1136
820P 820P 1000P
((0V))
((0V))
47K
((0V)):CrO
2
Q1206,1207
2SB621RTA
SOLENOID DRIVE
R1221
2.7
((10V))
((0V))
R1226
((9.5V))
Q1206
R1225
2.7
((10V)) ((0V))
R1227
((9.5V))
Q1207 1K
((9.5V))
:TAPE PLAYBACK SIGNAL LINE
Q1107
DTC144TKA146
P.B EQ/REC EQ
(CrO /H.SPEED)
2
((0V)):CrO
2
((0V))
((0V))
47K
R1146
10K
C1139
50V2.2
4.7V 9.1V
((0V)) ((9.7V)) ((0V))
21 20 19
GND
TPS
16 17 18
((0V)) ((4.1V)) ((5.1V))
3.8V
14.6V
A
B
C
D
E
F
9.1V
Q1208,1209
((5V))
DTC114TKA146
SOLENOID DRIVE
1K
A
((9.5V)) ((4.5V))
Q1208
((5V))
((4.5V))
B
Q1209
5V