Schematic Diagram - Driver Board - Sony HCD-GPX6 Service Manual

SCHEMATIC DIAGRAM – DRIVER Board – •
6-8.
LOADING MOTOR DRIVE
BA6956AN
R702
100
R701
D701 680
MTZJ-4.7C
M701
C705
(LOADING) 0.01
See page 42 for IC Block Diagram.
IC701
S703 S701 S702
(TRIGGER) (OUT) (CHUCK)
C711
10
50V
CN701
7P
SW2(CHUCK SW)
SW1(OUT SW)
SW3(TRIGGER SW)
M+7V
FIN(POS)
RIN(NEG)
MGND
(Page 32)
29 29
• Waveforms
– CD Board –
– MAIN Board –
1 IC101 yd (LRCK) 1 Q303, 304 (Base) (REC Mode)
4.4 Vp-p
22.8 µ s
2 IC101 yh (BCK) 2 Q303, 304 (Collector) (REC Mode)
4.5 Vp-p
472 ns 21.2 µ s
3 IC101 uj (XTAO) 3 IC306 qa (XCOUT)
4.5 Vp-p
59 ns
4 IC101 ra (RFACO) 4 IC306 qd (XOUT)
Approx.
700 mVp-p
62.6 ns
5 IC306 of (TC END SW) (Tape Play Mode)
HCD-GPX6/GPX7
12.4 Vp-p
21.2 µ s
2.6 Vp-p
3.2 Vp-p
30.4 µ s
2 Vp-p
6.3 Vp-p
2 s