27
27
HCD-RG110
5-8. Schematic Diagram – MAIN Board (2/4) –
• See page 19 for Waveforms.
0.6
0.6
0
0
0
4.5
0
0.6
1.2
9.4
0.2
3.7
2.5
0.6
4.7
2.9
12
12
0
0
0.7
0.7
0.7
0.7
0
0
0
0.7
0.7
5.7
1.3
1.2
0.6
4.8
3.4
0
0
0
4.7
0
0
4.8
4.7
0
5
4
4.4
4.7
0.2
0.2
4.8
4.4
4.7
4.8
0
4.7
5.9
5.9
5.9
11.5
7.1
0.2
0.8
0.2
0.8
5.5
5.6
2.7
3.4
5.1
0
0
0
0
0
0
0
0
0
9
9
9
9.1
9.1
9.1
9.1
9.1
9.1
0
0
11.9
11.2
11.9
11.9
2.9
4.7
4.7
1.2
4.8
2.9
2.9
4.7
4.8
4.7
2.4
4.8
AMS
AMS
AMS
SPEANA(R)
SPEANA(L)
5
20
19
1
21
22
2
24
3
25
28
29
12
8
7
11 26 27
23
30
31
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
33
32
MAIN BOARD
(2/4)
TO
MAIN BOARD
(3/4)
TO
MAIN BOARD
(3/4)
TO
MAIN BOARD
(3/4)
TO
MAIN BOARD
(1/4)
TO
MAIN BOARD
(1/4)
TO
MAIN BOARD
(4/4)
7
C
1
6
2
8
5
IC303
BUFFER
IC202
BUS SHIFT
REGISTER
TO
PANEL BOARD
CN601
(Page 31)
TAPE DECK
(2/2)
TAPE
DECK
(1/2)
RESET
Q222,223
B SOL DRIVE
Q224,225
A SOL DRIVE
Q226,227
M +B CONT
BIAS OSC
Q201-204
SWITCH
SWITCH
SWITCH
BIAS
REC BIAS
IC201
DECK A/B SELECT
PB/REC EQ AMP
DECK A
DECK B
CN603
50V
50V
R265
BU1924 CLK
BU1924 DA
TA
HA12237F
470
22k
3.3k
8.2k
3.3k
150k
0.1 50v
220p
