Schematic Diagram - Main Board (2/4) - Sony HCD-GX30 Service Manual

5-8. Schematic Diagram – MAIN Board (2/4) –
MAIN BOARD
(2/4)
TAPE
DECK
(1/2)
0.6
DECK A
0
IC201
0
DECK A/B SELECT
PB/REC EQ AMP
0
4.5
0
0.6
DECK B
4
SWITCH
0
12
SWITCH
0
11.9 12
11.9
11.2
0
11.9
0.7
0
50V
BIAS
• See page 19 for Waveforms.
2.5
3.7
0.2
9.4
1.2
50V
5
BIAS OSC
0
0.7 0.7
0
0
0.7 0.7
Q201-204
SWITCH
TO
5 1 MAIN BOARD
MAIN BOARD
(3/4)
19 20 21 1
IC303
BUFFER
5.9
5.9
5.7
1.3
SPEANA(L)
0.7
R265
220k
5.5
5.1
0.8
3.4
AMS
0.2
2.7
0
9
9.1
0
9.1
0
0
0
0
9.1
9
9.1
0
0
9.1
9
9.1
0
Q222,223 Q224,225 Q226,227
A SOL DRIVE M +B CONT
B SOL DRIVE
TAPE DECK
(2/2)
27 27
TO TO
TO
MAIN BOARD 6
MAIN BOARD
(1/4) (3/4)
(1/4)
2 3 22 23 24
5.9
11.5
7.1
1.2
0.6
SPEANA(R)
5.6
AMS
AMS
0.8
0.2
4.7
IC202
0
RESET
BUS SHIFT
REGISTER
HCD-GX30/RG22/RG33
TO
2 MAIN BOARD
8
(3/4)
11 26 27
7 8 12 25 28 29
30
7
TO
MAIN BOARD
(4/4)
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
CN603
TO
C
PANEL BOARD
CN601
(Page 31)