Panasonic SA-AK88 Service Manual page 22

SCHEMATIC DIAGRAM-8
C
H
F
E
D
B
E
D
Q1218
DTA114EKA146
MOTOR DRIVE
4.9V
((0V)) ((5V))
C
((5V)) Q1220
0V
DTA143XKA146
MOTOR DRIVE
((5V)) ((5V))
R1232
1K
((0V))
A
B
:POSITIVE VOLTAGE LINE
14.8V
Z1101
25K 25K 25K
1 2 3 4 5 6
5V
R1215 2.2K
R1216 2.2K
((0V)) ((0V)) ((4.6V))
2 3 4
1 5 6
IC1105
BU2090AF-E2
SYSTEM CONTROL
16 15 14 13 12 11
((5.1V)) ((4.5V)) ((4.5V)) ((0V)) ((5V))
Q1206
2SB621RTA
SOLENOID DRIVE
R1221
2.7
((0V))
A
Q1208
DTC114TKA146
SOLENOID DRIVE
((4.5V)) ((9.2V))
((5V))
((5V))
((4.5V)) ((9.2V))
Q1209
DTC114TKA146
SOLENOID DRIVE
R1225
2.7
G
((0V))
Q1207
2SB621RTA
SOLENOID DRIVE
:TAPE PLAYBACK SIGNAL LINE
:TAPE RECORDING SIGNAL LINE
B
A
D
C
TP10
7
5.1V
4.9V
((0V)) ((0V))
7 8
10 9
((0V))
0V 4.3V
((10.4V))
((9.2V))
((9.2V))
10.4V
((10.4V))
Q1203
2SD965RTA
MOTOR DRIVE
R1206
220
((0.7V))
H1101
M.GND
1
MO.GND
2
10.4V +B(5)
3
TO
D.GND
4
MAIN (CONTROL)
R1144
+B(3)
5
10K
CIRCUIT (CN304)
6 Rch IN
ON SCHEMATIC
Lch IN
7
DIAGRAM-17
R1143 A.GND
8
10K
9 Rch OUT
Lch OUT
10
TP9
CN1201
+B(6)
1
MK DATA
2
TO
3 MK CLK
PANEL CIRCUIT
VREF-
4
(H602) ON
TPS
5
SCHEMATIC
6 ADIN6
DIAGRAM-13
ADIN7
7
VREF+
8
W1200
2
M
MOTOR
((0V))
1