![background image](http://html.mh-extra.com/html/sony/hcd-gtr6/hcd-gtr6_service-manual_420751041.webp)
41
41
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-19. SCHEMATIC DIAGRAM — MAIN BOARD (2/5) — • Refer to page 22 for Block Diagrams. • Refer to page 59 for IC Block Diagrams.
+
-
+
R-CH
HRPE901
REC/PB/ERASE
HEAD
(REC/PB)
L-CH
(REC/PB)
(ERASE)
-
+
-
*1
0
4.3 4.5
0
4.3
4.3
4.3
6.9
6.8
0
0
6.9
9
4.5
4.5
4.5
9 4.2
4.2
0
4.3 4.3
9
0
0
0
0
0
0.1
9.2
9.2
0.1
4.3
4.2
4.1
4.3
4.3
0
4.3
6.9
4.3
4.9
0
4.2
4.1
4.3
4.3
6
4.3
6.2
4.9
0.1
0
9.2
0
0.1
0.6
0
5.8
17.6
5.8
5.5
17.6
0.1
0.7
0.7
0.6
0.1
0
0
0.9
3.3
0
0.6
16.9
TU901
FM/AM
TUNER
PACK
COAXIAL
FM 75
AM
ANTENNA
C405
R401
2SC3052EF-T1-LEF
Q401
R413
R336
C418
ISA1235AC1TP-1EF
Q405
R430
C328
C300
R317
C411
C403
C315
KTA1271Y-AT
Q301
R324
C356
2SC3052EF-T1-LEF
Q402
R481
R309
C313
C324
R316
C404
R322
ISA1235AC1TP-1EF
Q406
R304
R350
R427
ISA1235AC1TP-1EF
Q407
R320
JR316
2SC3052EF-T1-LEF
Q404
C316
R436
R315
JR315
R334
R423
R331
C466
R323
C323
C306
R403
R406 47k
R405 47k
R302
2SC3052EF-T1-LEF
Q302
C303
R351
R325
R313
C416
R443
RT1N431C-TP-1
Q410
R332
C327
R431
R404
C414
R407
JR119
0
12.5MM
JW110
12.5MM
JW130
R424
R312
R303
R326
R432
2SC3052EF-T1-LEF
RELAY SWITCH
SWITCH
SWITCH
Q408
R428
R349
C350
R412
C430
C406
R438
R437
C329
R433
R330
D401
R440
R307
C413
6
2
1
3
5
4
TRANSFORMER
T300
R308
C304
R337
R321
R429
R414
C355
C352
R319
R402
R444
R435
0
R439
C351
47k
R442
C412
C353
R408
R482
0.01
C302
R400
R310
R434
ISA1235AC1TP-1EF
Q456
C317
R311
2SC3052EF-T1-LEF
Q403
R314
KTC3203Y-AT
Q300
C410
C330
C417
R306
C314
R411
R329
ISA1235AC1TP-1EF
Q113
R300
R409
D301
MAZ8043GMLS0
RT1N141C-TP-1
Q409
R318
2.2k
R484
8
7
6
5
4
3
2
1
NJM4558V-TE2
IC451
OUTPUT
INPUT
-
INPUT+
GND
INPUT+
INPUT
-
OUTPUT
VCC
8
7
6
5
4
3
2
1
NJM4558V-TE2
IC450
OUTPUT
SWITCH
SWITCH
INPUT
-
INPUT+
GND
INPUT+
INPUT
-
OUTPUT
VCC
C433
25V
C035
47
50V
C030
22
2SC3052EF-T1-LEF
Q036
Q036
C042
R040 10k
MAZ8130GMLS0
D032
R047
MAZ8062GMLS0
D030
100k
R039
1
2
3
3P
CN310
3P
CN320
FAN+
FAN-
C041
KTA1273-Y-AT
FAN DRIVE
FAN DRIVE
FAN DETECT
FAN DRIVE
FAN DRIVE
FAN DET
FAN CONTROL SWITCH
FAN DRIVE
Q038
2SC3052EF-T1-LEF
Q039
Q039
C043
0.1
C034
1
2
3
FAN+
FAN+
FAN+
FAN-
KTA1273-Y-AT
Q033
Q033
MAZ8068GMLS0
D031
2SC3052EF-T1-LEF
FAN SWITCH
Q031
Q031
Q032
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
Q034
1k
R032
R048
Q037
2SC3052EF-T1-LEF
E3,AUS,E4
GTR6B/GTR8B
GTR6B/GTR8B
MA2J1110GLS0
D010
0.1
C037
R103
1k
1k
R153
C107
22p
C157
22p
220k
R104
220k
R154
47
25V
100k
R049
10k
1k
0.1
0.1
JL021
JL022
JL023
JL024
JL025
JL026
JL027
JL028
JL221
JL222
JL223
JL224
JL225
JL226
G
J020
2P
47
R030
47
R033
47
R034
R035 47
R036 47
R037 47
RT1N441C-TP-1
Q030
Q030
0
R044
1
2
3
4
5
6
7
8
CN020
EH+
EH-
GND
REC-R
PB-R
PB-L
REC-L
REC-L
REC-R
DRIVER
DRIVER
SWITCH
GND
C402
C401
TA
PE_REC-R
TA
PE_REC-L
TAPE_PB-L
TAPE_PB-R
ST-R
ST-L
75
72
82
VIDEO-L
VIDEO-R
56
HI
LOW
HI
BIAS OSCILLATOR
BIAS SWITCH
VIDEO-IN
L
R
JW020
5.0MM
10V
C021
100
R027 10k
R028
1
2
3
4
5
6
7
8
9
WHT
9P
CN070
19
20
21
22
23
24
25
26
1
18
2
3
ST-L
ST+9V
ST-R
GND
TUNED
ST-CE
ST-DIN
ST-CLK
ST-DOUT
R029 10k
R026
*1
*1
6.8k : EXCEPT E2
12k : E2
JL041
JL042
JL043
JL044
JL045
JL046
JL047
JL048
JL049
61
65
63
58
60
M892
DC FAN
M891
DC FAN
47
16V
22
22
22
4.7k
4.7k
4.7
4.7
47k
47p
47p
47k
4.7
100
1k
220
16V
0
220
0.1
220p
470k
47
220
22
50V
C318
22
50V
10k
47k
47p
10k
6.8k
6800p
100
JW118
15.0MM
0.1
47
47p
470k
6.8k
10k
6800p
220
470
1000p
1000p
470
47k
100
4.7k
0.01
4.7k
47k
100
470p
0
0
470p
220p
0.068
100
0.068
47k
100k
0.1
100k
47k
6.8k
180p
100k
10
50V
C409
10
50V
560k
470k
10
120p
4700p
5p
0.1
5p
10
10k
10k
MC2838-T1
12-1
47k
47k
10k
1k
1k
4700p
4700p
2.2k
10k
10
50V
100k
2.2k
10k
10k
470k
4700p
100k
180p
560k
120p
6.8k
10k
22k
10
0
10k
470p
0
C301
17.5MM
JW102
JW105
10.0MM
JW115
17.5MM
12.5MM
JW122
5.0MM
JW104
5.0MM
JW175
JW103
12.5MM
7.5MM 7.5MM
JW131 JW165
JW109 JW117
17.5MM 12.5MM
12.5MM
JW274
JR115
0
15.0MM
JW112
JW111
5.0MM
R305
R301
10k
8p
470p
0
OP-AMP
IC451
OP-AMP
IC450
REC-BIAS
SWTICH
REC-MUTE
MUTE SWITCH
GTR7/GTR8/GTR8B
GTR7/GTR8/GTR8B
R335
47k
C120
0.1
0.001
C407
C408
6800p
IC B/D
IC B/D
MAIN
BOARD
(1/5)
(Page 40)
MAIN
BOARD
(4/5)
(Page 43)
MAIN
BOARD
(4/5)
(Page 43)
MAIN
BOARD
(4/5)
(Page 43)
MAIN
BOARD
(5/5)
(Page 44)
MAIN BOARD (2/5)
1
7
8
9
10