Printed Wiring Board - Bd Board - Sony HCD-GX8000 Service Manual

HCD-GX8000/RG77
Q Q
3 7 6 3 1 5 1 5 0
• Waveforms
– BD Board –
1 IC103 qg (RFAC) (CD Play Mode) 6 IC101 yj (XTAO)
1.1 ± 0.4 Vp-p
2 IC101 wh (MDP) (CD Play Mode)
2.5 Vp-p
7.5 µ s – MAIN Board –
qa Q302, Q303 (Base) (REC Mode)
3 IC101 el (FE) (CD Play Mode)
T E
L 1 3 9 4 2 2 9 6 5 1 3
Approx.
0.3 Vp-p
4 IC101 ra (TE) (CD Play Mode) qs Q302, Q303 (Collector) (REC Mode)
Approx.
0.4 Vp-p
qd Q302, Q303 (Emitter) (REC Mode)
5 IC101 t; (RFDC) (CD Play Mode)
w w w
0.65 ± 0.15 Vp-p
qf IC501 qa (XC-OUT)
5 Vp-p
59 ns
30.5 µs
qg IC501 qd (X-OUT)
62.5 ns
2.1 Vp-p
12.1 µs – PANEL Board –
wa IC601 is (X0)
10.8Vp-p
12.1 µs
250 ns
x a o
0.4 Vp-p
. i
12.1 µs
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7-6. PRINTED WIRING BOARD – BD Board – •
1
2.4 Vp-p
A
B
1.9 Vp-p
Q Q
C 3 7 6
D
2.8 Vp-p OPTICAL PICK-UP
• Semiconductor
Location
Ref. No. Location
D101 B-4
IC101 C-3
u 1 6 3 IC102 B-2
y
IC103 D-2
Q101 C-1
Q102 B-4
28 28
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2 4
8 9 9
See page 27 for Circuit Boards Location.
2 3
1 2
7 8
M101
(SPINDLE)
IC101
3 1 5 1 5 0 8 9
IC103 TP TP
(FEO) (TEO)
TP
(DVC)
TP
(RFAC)
BLOCK
TP
(A-MAX.3)
(FEI)
m
c o
.
2
8 9 9
4
(Page 33)
M102
(SLED)
2 4 9 8 2 9 9
TP
(RFDC)