Schematic Diagram - Sw Board - Sony HCD-GX8000 Service Manual

HCD-GX8000/RG77
Q Q
3 7 6 3 1 5 1 5 0
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
7-11. SCHEMATIC DIAGRAM – SW Board –
PM902
(DECK B)
S1003
(DECK A HALF)
S1005
(DECK A REC)
S1006
(DECK B HALF)
S1009
(DECK B REC)
• Voltages are dc with respect to ground under no-signal
conditions.
[ ] : TAPE PLAY (DECK A)
x a o
y
{
} : TAPE PLAY (DECK B)
〈〈 〉〉 : REC
. i ∗
: Impossible to measure
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(CAPSTAN)
C1001
CAPSTAN MOTOR
33
CONTROL SWITCH
10V
[3.3]
PM901
(DECK A)
ROTATION
DETECT
Q Q
3 7 SENSOR (DECK A) 6
(DECK A PLAY)
u 1 6 3
.
32 32
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2 4
8 9 9
TAPE SPEED
(NORMAL)
TAPE SPEED
(HIGH)
[∗] {2.9}
<<2.9>>
[3.3]
ROTATION
DETECT
3 1 SENSOR (DECK B) 5 1 5 0 8 9 2
+3.3V
+3.3V
S1001 S1002
(DECK B PLAY)
+3.3V
m
c o
2
8 9 9
CAPM−
4 9 8 2 9 9
CAPM+
CAPMH/L
ATRGM+
TRGMGND
BTRGM+
C
+3.3V
MAIN BOARD (3/4)
CN304
(Page 36)