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29
29
HCD-VX222
6-8. SCHEMATIC DIAGRAM – MAIN SECTION (1/5) –
• See page 50 for IC Block Diagrams.
IC201
Q210
Q211
Q217
Q219
Q220
Q221
Q224
Q218
Q222
Q223
Q216
Q214
Q215
R234
R232
R232A
R214
R216
C244
R272
R278
R276
R274
R237
R220
R208
R206
R201
R202
R239
R240
R210
C206
C203
C204
C201
C202
R228
R230
R222
R224
C224
JR17
R258
R256
R249
R257
R261
R250
R218
R238
R264
C235A
R262
R263
R236
R217 C265
C207
R209
C205
C208
R205
R223
C237
R229
R227
R207
R271
R273
R275
R277
R215
R247
C243
R226
R231
R231A
R233
JR7
R252
R241
R242
R245
R243
R244
R246
R251
R248
C266
R260
R253
R254
C240
C215
C221
C256
C235
C236
C270
R270
C230
C229
C217
C210
R203
R204
CN202
C209
C271
C213
C272
C218
C257
C236A
C233
C242
C241
C239
L201
C223
Q213
R225
R221
C211
C214
C212
Q212
R235
Q228
Q225
Q227
D206
D203
D204
D207
D205
Q229
Q226
Q230
R255
R259
CN203
C228
C227
C238
R219
C219
C232
C222
C231
C226
C225
R265
C245
C246
R266
C234
TA8189N
2SC2785
2SC2785
2SC3623A
2SC2785
2SC2785
2SC2785
2SC2785
2SC2785
2SC2785
2SC2001
2SC3623A
2SC3623A
2SC3623A
68k
2.2k
1k
4.7k
100k
0.0015
1M
100k
4.7k
1.5k
10k
22k
8.2k
47
10
10
10k
10k
270k
220p
680p
680p
680p
680p
120k
1.8k
220
180k
470p
0
220
10k
680k
390
390
180k
180k
680k
10k
47p
100k
10k
4.7k
10k
0.01
220p
270k
220p
220p
47
180k
470p
1.8k
120k
8.2k
1M
1.5k
4.7k
100k
4.7k
100k
0.0015
22k
2.2k
1k
68k
0
27k
4.7k
4.7k
10k
2.2k
27k
4.7k
2.2k
12k
0.022
390
10k
4.7k
47
16V
2.2
50V
4.7
50V
1
50V
1
50V
100
16V
100
16V
220
100
10V
100
10V
47
16V
47
16V
10
10
47
16V
1
50V
1
50V
1
50V
47
16V
0.1
50V
47p
0.047
MC
0.001
MC
0.0047
MC
0.015
MC
0.022
MC
2SC2785
22k
10k
0.018
MC
1
50V
0.018
MC
2SC2785
4.7k
2SB1116A
2SB1116A
2SB1116A
BUFFER
1SS355TE
1SS355TE
1SS355TE
1SS355TE
1SS355TE
2SC3623A-LK
MUTE
DTA124ES
SWITCH
2SC3623A-LK
MUTE
1k
1k
3P
47p
47p
0.0018
10k
2.2
50V
0.47
50V
4.7
50V
0.47
50V
0.0018
4.7
50V
820k
0.22
0.22
820k
0.01
MC
8
9
10
11
12
7
6
5
4
3
2
1
13
REC/PB PRE AMP
HEAD
PLAYBACK
L-CH
R-CH
ERASE
HEAD
RECORD/
PLAYBACK
HRP101
-B DECK-
-A DECK-
HP101
L-CH
R-CH
AMP
Q210,211
MUTE
MUTE
OSC
BIAS
BIAS OSC
1
2
3
4
5
6
7
8
9
SWITCH
Q220,221
AMP
SWITCH
Q218,219
BIAS OSC
Q224,228
B+ SWITCH
SWITCH
SWITCH
AMP
SWITCH
Q222,225
GND
REC
NF
GND
M
IX
PRE
M
ETAL
NF
CH1/A
CH1/B
OUT
OUT
OUT
M
/H
REC
OUT
IN
PRE
METAL
OUT
OUT
NF
REC
NF
IN
REC
OUT
TAPE
A/B
CH2/B
CH2/A
CD
VCC
ALC
(3/5)
(2/5)
(4/5)
(Page 30)
(Page 31)
(Page 32)