Sony HCD-GT220 / HCD-GT440 / HCD-GT660 / MHC-GT220 / MHC-GT440 / MHC-GT660 Service Manual ▷ View online
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
37
37
7-13. PRINTED WIRING BOARDS - MAIN Section -
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D001
G-8
D005
E-10
D006
G-7
D007
F-8
D008
F-7
D009
F-7
D011
G-6
D012
G-7
D013
G-6
D014
G-7
D021
H-7
D022
G-7
D023
H-7
D024
G-7
D031
J-6
D036
C-8
D037
J-8
D159
I-3
D211
G-2
D212
G-2
D213
G-2
D214
F-2
D301
D-8
D302
D-8
D703
C-10
D901
E-3
D902
D-4
D903
E-3
D904
E-3
D911
F-3
IC006
G-7
IC007
E-10
IC011
G-6
IC021
F-6
IC102
I-4
IC103
I-3
IC251
J-6
IC252
J-7
IC301
B-5
IC302
B-5
IC303
C-4
IC901
C-3
IC902
E-4
Q011
F-8
Q041
I-6
Q042
H-6
Q043
C-8
Q044
B-8
Q045
C-8
Q046
B-9
Q111
G-2
Q112
G-2
Q113
H-4
Q114
H-4
Q121
I-5
Q251
I-6
Q252
J-6
Q261
I-8
Q272
I-8
Q274
F-9
Q301
C-8
Q302
C-8
Q303
D-6
Q304
C-6
Q701
C-10
Q702
D-10
Q901
E-4
Q902
E-4
Q903
E-3
Q904
E-3
Q905
E-3
Q908
C-3
Q911
F-3
Q912
F-3
Q913
F-3
Q914
F-3
Q915
F-3
Q916
F-3
Q921
B-2
Q922
B-2
Q923
B-2
Q931
A-2
B
E
B E
B E
B E
B E
B E
B
E
B
E
B E
B
E
B
E
B E
B E
B E
B E
B E
B E
B E
B
E
B
B
E
E
1 4
5
8
1
4
5 8
5 8
B E
1
10
5
6
40
31
20
21
30
1
10 11
14
8
1
7
14
8
1
7
9
16
1
8
B
E
B
E
B
E
G S
30
31
50
51
81
80
100
1
B
E
B E
B
E
9
1
13
1
C363
R362
R361
JR120
R290
R289
R016
R014
R013
R010
R202
R201
Q261
R001
D159
Q252
Q251
IC902
IC901
D911
Q046
Q045
Q044
Q041
D904
D903
D902
D901
IC303
IC302
IC301
R991
R990
IC103
IC102
JR119
C950
JR118
JR115
JR114
JR113
JR112
JR111
C179
JR110
C178
C177
C176
C175
C174
C173
C172
JR109
C171
JR107
JR106
C362
JR105
R979
C361
JR104
R977
Q011
C166
C165
C164
C163
C160
R962
R961
R960
C152
C151
C150
R959
R958
R957
C149
C147
C146
C145
C912
C140
R949
R948
R947
R946
R175
R945
C139
R944
R174
R173
R943
R942
R941
C905
R940
C904
R170
C903
C133
C902
R939
R169
R938
R937
R936
R166
R935
R165
C128
R164
R934
R933
C127
R163
R932
R162
R355
R161
R354
R160
C123
R353
C122
R352
C120
R929
R159
R928
R158
R927
R157
R926
R156
R925
R155
C117
R923
R153
R922
R346
R152
CL001
R921
R345
R151
R920
C114
R344
R343
R342
R341
R919
R918
R148
R917
R147
R916
R915
R145
R914
R144
R913
R143
R912
R142
R911
R141
R334
R910
R140
R333
R332
R330
R909
R139
R908
R138
R137
R136
R135
R328
R134
R327
R133
R326
R901
R325
R131
R324
R130
R323
R322
R321
R129
R128
R127
R126
R125
R124
R123
R122
R121
R120
R312
R311
R310
IC252
R119
IC251
R116
R309
R308
R114
R307
R113
R306
R112
R305
R111
R304
R110
R303
R302
R301
R108
R105
R101
Q913
Q912
Q911
Q905
Q904
Q903
D037
Q902
D036
D031
C285
C281
Q121
C277
C276
C275
D214
C274
D213
C273
D212
D211
Q114
Q113
Q112
Q111
C268
Q303
C267
Q301
C264
D009
D008
D007
D006
C064
C063
R293
R292
R291
C254
C253
C252
C251
R286
R285
R281
R280
R279
R278
R277
R276
R274
R268
R267
R265
R264
R263
R262
R261
R068
R064
C027
R063
R256
C026
R255
R061
R254
R253
R252
R251
R057
R055
R054
R053
R052
R051
R050
C010
R049
R048
R047
R046
R045
R043
R042
R234
R232
R231
R230
R037
R036
R229
R035
R228
R034
R227
R033
R226
R032
R225
R224
R223
R222
R221
R217
R216
R215
R214
Q274
R213
R212
Q272
R211
1
12
3
3
1
1
2
10
11
1
2
10
11
1
3
1
13
1
3
1
2
12
13
1
4 3
+-
B
E
B
E
B
E
E
1
2
3
1
2
3
1
2
3
E
B
B
E
B
E
20
21
1
2
1
2
26
27
2
1
26
27
4
5
1
2
6
1
B
E
B
E
A001
JW337
JW335
C289
JW336
JW179
JW178
JW177
JW176
JW175
JW174
JW173
JW172
JW171
JW170
JW169
JW168
JW167
JW166
JW165
JW164
JW163
JW162
JW161
JW160
JW159
JW158
JW157
JW156
JW155
JW154
JW153
JW152
JW151
JW150
JW149
JW148
JW147
Q043
JW146
Q042
JW145
JW144
JW143
JW142
JW141
JW140
JW334
JW333
JW332
JW331
JW330
JW139
JW138
JW137
JW136
JW329
JW135
JW328
JW134
JW327
JW133
JW326
JW132
JW325
JW131
JW324
JW130
C182
C180
JW129
JW128
JW127
JW126
JW125
JW124
JW317
JW123
JW316
JW122
JW315
JW121
JW314
JW120
JW313
JW312
JW311
JW310
C170
D302
JW119
D301
JW118
JW117
JW116
JW309
JW115
JW308
JW114
C168
JW307
JW113
C167
JW306
JW112
JW305
JW111
JW304
JW110
JW303
JW302
JW301
JW300
JW109
JW108
JW107
JW106
JW105
JW104
C158
JW103
C157
JW102
C156
JW101
C155
C154
C153
EP061
C916
C914
C144
C913
C143
X902
C142
C911
X901
C141
C908
C138
C137
C901
C130
C129
C126
C125
LP903
LP902
LP901
C121
C119
EP031
C118
C116
C115
CN901
C111
C110
C301
C109
JW299
JW298
JW297
JW296
JW295
JW294
JW293
JW292
JW291
JW290
CN302
CN301
JW289
JW288
JW287
JW286
JW285
JW284
JW283
JW282
JW281
JW280
JW279
JW278
JW277
JW276
JW275
JW274
JW273
JW272
JW271
JW270
JW269
JW268
JW267
JW266
JW265
JW264
JW263
JW261
JW258
JW257
JW254
JW252
JW251
Q916
JW249
Q915
JW248
Q914
JW247
JW246
JW245
JW244
JW243
JW242
JW241
JW240
JW239
JW238
JW237
JW236
JW235
Q901
JW234
JW233
JW232
JW231
JW230
C283
C282
JW229
JW228
JW227
JW226
JW225
C279
JW224
D024
C278
JW223
D023
JW222
D022
JW221
D021
JW220
JW219
JW218
JW217
JW216
JW215
JW214
Q304
D014
JW213
D013
JW212
Q302
D012
JW211
D011
JW210
C263
C260
JW209
JW208
JW207
JW206
JW205
C259
JW204
C258
JW203
C257
JW202
JW201
D001
JW200
CN271
JW002
JW001
CN061
C035
C034
C033
C025
R060
C023
C022
C021
CN041
C212
C211
R059
C015
C013
CN031
C008
C007
C002
C001
R039
JW199
JW198
JW197
JW196
JW195
JW194
JW193
JW192
JW191
JW190
CN202
CN201
JW189
JW188
JW187
JW186
JW185
JW184
JW183
JW182
CN002
JW181
CN001
JW180
IC021
IC011
IC006
JW250
JW253
JW255
JW256
JW259
JW260
JW262
CN903
JW318
JW319
JW320
JW321
JW322
JW323
Q908
Q921
Q922
Q923
Q931
R950
R951
R952
R953
R954
R955
R956
R963
R964
R965
R966
R968
R969
R970
R971
R972
R973
R974
R975
R976
JR108
C942
C943
R980
C946
C947
R984
C948
R988
R989
R992
R993
R994
R995
R996
R997
R999
R987
CB
E
B
E
E
Q701
Q702
C702
J701
C704
C706
C707
R709
D703
R701
R702
R703
R706
JW701
R708
R710
1
2
3
4
5
3
1
A701
R705
CN701
LP701
C703
C705
C701
1
3
1
2
C032
C031
IC007
D005
R009
R008
C030
C029
H
PANEL
BOARD
CN601
G
KEY TOP
BOARD
CN616
J
TC BOARD
CN008
K
MIC
BOARD
M1
AMP BOARD
CN441
M2
AMP BOARD
CN441
L
SUB WOOFER
BOARD
CN501
A
CD BOARD
CN202
D
USB R BOARD
CN907
(CHASSIS)
(CHASSIS)
MAIN BOARD
1-872-789-
13
(13)
X902
X901
(NC)
1 2
4
3
TAPE
MECHANISM
DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
(GT660)
(GT660)
(GT660)
(GT660)
(GT55)
(GT660)
(GT660)
(GT220/GT440)
(GT440/GT660)
(GT220/GT440)
(GT440/GT660)
(GT440)
(GT220/GT660)
(GT440)
N1
TRANSFORMER
BOARD
CN907
N2
TRANSFORMER
BOARD
CN907
(GT220/GT660)
(GT440)
+
D
B
DRIVER BOARD
CN701
M001
(FAN)
M
TUNER (FM/AM)
SUPPLIED WITH THE
ASSEMBLED BLOCK
FM 75
Ω
(COAXIAL)
ANTENNA
AM
(GT220/GT440)
(GT220/GT440)
(GT440/GT660)
(GT440/GT660)
(GT660)
(GT440/GT660)
1-872-054-
(GT220/GT660)
(GT440)
1-872-553-
11
(11)
D-LIGHT SYNC BOARD
D-LIGHT
SYNC OUT
C
USB R BOARD
CN901
5V REG BOARD
1-872-794-
13
(13)
1
2
3
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
(Page 52)
(Page 50)
(Page 34)
(Page 42)
(Page 44)
(Page 46)
(Page
54)
(Page
56)
(Page
48)
(Page
32)
(Page 30)
(Page 28)
(Page 32)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
38
38
7-14. SCHEMATIC DIAGRAM - MAIN Section (1/4) -
• See page 36 for Waveforms. • See page 60 for IC Pin Function Description.
3
BOARD
MAIN
(3/4)
4
BOARD
MAIN
(4/4)
1
BOARD
MAIN
(4/4)
(2/4)
2
BOARD
MAIN
BOARD
KEY TOP
CN616
G
CN601
H
BOARD
PANEL
31
32
33
2.9
3.3
4
10.6
4.5
9.5
10
0
0.6
0
0.9
0
3.2
0
0
[3.2]
[0.1]
[0]
[9]
0
[9]
[9]
4
0
0
[9]
[9]
9
[8.3]
[9]
0.8
0
0.6
0.1
7.8
7.8
7.8
0.7
0
0
0
3.2
0.8
3.3
2.7
[3.2]0
3
0
0
0
3.2
2.5
1.1
1.5
0
0.9
1.3
3.3
3.1
3.2
0
3.2
3.3
0
0
0
0
0
3.2
3.2
3.2
0
0
3.1
2.9
0
0
0.7
0.9
0.7
3.2
3.2
(3.2)0
3.2
0
0
3.3
3.3
0
0
0
0
0
3.2
0
0
0
0
0
3.2
3.2
3.2
3.2
3.2
3.2
3.3[
∗]
3.3
0
3.2
0
0(
∗)
3.1
2.2
1.6
0.4
3.3
1.9
3.2
0.3(
∗)[0]
0.4[2.3]
3.3
3.3
3.3
3.3
0.9
0
0.8(
∗)[0.1]
2.6
3.2
3.2[0]
3.2[0]
3.2[0]
0(
∗)
3.2
3.2
TAPE REC: 3.2
OTHERS: 0
OTHERS: 3.3
TAPE REC: 0
32.768kHz
X901
15p
C904
0
R901
KTA1271Y-AT
Q916
KTA1273-Y-AT
Q914
RT1N431C-TP-1
Q912
1k
R912
10k
R914
10k
R916
MC2836
D911
KTA1271Y-AT
Q915
RT1N431C-TP-1
Q913
RT1N431C-TP-1
Q911
1k
R913
10k
R915
1k
R911
100k
R909
2.2k
R923
100k
R921
2SC3052EF-T1-LEF
Q902
2SC3052EF-T1-LEF
Q905
47k
R908
C912
0.047
25V
C913
100
220
C908
16V
MAZ8047GMLS0
D901
KTA1271Y-AT
Q901
5.5V
0.047F
C901
10k
R922
1
2
3
4
5
5P
CN902
FLMD
4.0V
VSS
RESET
TOOL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
27P
CN901
VF
VF
-VFL
D-GND
VREF
VDD+3.3V
KEY0
KEY1
KEY2
KEY3
JOG
VOL
VFD-CS
VFD-RESET
STREAM1
STREAM2
STREAM3
STREAM4
STREAM5
STREAM6
SW-LED
STBY-LED
SIRCS
VFD-DATA
VFD-CLK
LED+9V
LED-GND
0.1
C948
0.1
C946
10k
R992
2SC3052EF-T1-LEF
R993
100k
10k
R994
2SC3052EF
-T1-LEF
R995
100k
10k
R996
2SC3052EF
-T1-LEF
100k
R997
10k
R999
2SC3052EF-T1-LEF
Q931
2.2k
R989
22k
R959
22k
R958
22k
R957
22k
R960
R980
10k
R987
∗
10k
R933
10k
R935
10k
1k
R979
R990 100
R991 100
3.3k
R964
10k
R963
2SC3052EF-T1-LEF
Q903
47k
R927
4.7k
R928
22k
R918
20MHz
X902
1
2
3
4
5
6
6P
KEY4
D-GND
LED+9V
GUITER_LED_OUT
VOCAL_LED_OUT
BASS_LED_OUT
R966
220k
1k
R968
1k
R965
1k
R969
1k
R971
1k
R970
22k
R955
R974
100
R975
100
100
R972
100
R973
0.1
C903
100
R945
10k
R937
100
R947
100
R946
10k
R910
R977
100
R976
100
10k
R936
47k
R919
50V
C911
0.47
47k
R917
10
R920
43
2
1
PST3429UL
IC902
V-OUT
VDD
NC
VSS
MA2J1110GLS0
D904
0.1
C950
16V
47
C914
22k
R961
22k
R962
22k
R926
22k
R925
100
R929
0.1
C943
R984
10k
100k
R941
100k
R942 R943
100k
100k
R944
100
R948
100
R949
100
R951
100
R950
100
R952
100
R953
100
R956
100
R938
R940
100
100
R939
0.47
C902
MC2836
D902
MC2836
D903
C942
1000p
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
O-SYS-MUTE
O-SWR
O-FRONT-SP-RELAY
O-CD-POWER
0-POWER-RELAY
CD XRST
CD-M-MUTE
O-USB-POWER
I-USB-CTS(DI)
O-USB-RTS(DO)
O-USB-RESET
CD-BUCK
CD-CCE
CD-BUS3(I/O)
CD-BUS2(I/O)
CD-BUS1(I/O)
CD-BUS0(I/O)
MP3 IREQ
CD-SEL1
EVSS1
CD-SEL2
O-LM-R
O-LM-F
O-TM-R
O-TM-F
I-CD-SENS
I-OPEN-SW
O-LC72121-CE
I-SBSY
EVDD1
I-LV23004T-DI
O-LV23004T-CLK
O-LV23004T-DO
I-TUNED
I-AC-CUT
O-STK-MUTE
O-USB-LED
O-G-LED
O-V-LED
O-B-LED
O-F-DATA
I-USB-RXD(SI)
O-USB-TXD(SO)
O-P-DATA
O-AUDIO-CLK
O-REC/PB
AVREF1
O-REC-MUTE
O-BIAS
AVREF0
AVSS
I-USB-MONI
I-SUFIX
I-MODEL
I-ENCO
I-KEY4
I-PROTECTOR
I-HP/MIC
I-VACS
I-TAPE-STAT
I-KEY0
I-KEY1
I-KEY2
I-KEY3
I-JOG
I-VOL
I-STREAM
O-NJM3427FA2-CS
O-NJM3427FA2-RESET
O-S-LED1
O-S-LED2
O-S-LED3
O-S-LED4
O-S-LED5
O-S-LED6
O-SWR-LED
O-STBY-LED
I-REEL-A
I-REEL-B
I-RDS-CLK
I-STRCS-IN
NC
I-WAKEUPKEY
O-NJM3427A-DATA
O-MOTOR
O-NJM3427A2-CLK
O-B-SOL
O-A-SOL
TOOL0
RESET
XT2
XT1
FLMD0
X2
X1
REGC
VSS
EVSS0
VDD
EVDD0
100
R954
10k
R934
25V
C916
22
18p
C905
RT1P431C-TP-1
Q908
100k
R988
ISA1235AC1TP-1EF
Q904
1000p
C947
SEL1
REQ
BUS1
BUS2
CD-RST
M-MUTE
P-RELAY
STBY
SW-LED
S-6
S-5
S-4
S-3
S-2
S-1
REC-M
REC/PB
T-CLK
A-SOL
B-SOL
MOTOR
KEY2
KEY4
G-OUT
V-OUT
B-OUT
G-OUT
B-OUT
B-LED
V-LED
G-LED
U-LED
SW-ON
FSP-RELAY
CD-POWER
HP/MIC
V-CLK
KEY0
KEY1
KEY3
JOG
VOL
V-CS
V-RST
S-1
S-2
S-3
S-4
S-5
S-6
SW-LED
STBY
SIRCS
V-DATA
E-2
VACS
TM-R
STK-M
T-DI
U-OUT
SEL2
LM-R
LM-F
TM-F
A-SOL
B-SOL
MODEL
SUFIX
KEY3
KEY2
KEY1
KEY0
VOL
JOG
TAPE-STAT
MOTER
B-LED
BIAS
V-RST
V-CS
T-CE
BUS3
SBSY
T-DO
U-MONI
RDS-CLK
A-REEL
B-REEL
STREAM
DO
USB-RST
BUCK
CCE
BUS0
OPEN-SW
SENS
V-LED
U-LED
G-LED
F-DATA
U-POWER
SIRCS
KEY0
DI
P-DATA
A-CLK
SO
SI
ACP
PROTECT
ACP
KEY4
V-OUT
E-1
SYS-M
SUFIX
T-TUNED
E-3
V-CLK
V-DATA
MODEL
1
2
15
22
24
25
26
28
29
30
31
32
33
34
MAIN BOARD
(1/4)
RESET SIGNAL GENERATOR
IC902
SYSTEM CONTROLLER
IC901
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
18
15
16
3
G
D
5
17
E
12
IC901
μPD78F1165GF-GTSTDA-GAS-AX (GT220/GT440)
μPD78F1165GF (S)-GAS-AX (GT660)
Q901, 902
+4V REGULATOR
RESET SWITCH
Q903 - 905
LED DRIVE
(GT220/GT440)
(GT660)
Q921 - 923
LED DRIVE
(GT660)
LEVEL SHIFT
(NC)
(GT440/GT660)
Q913, 916
TRIGGER PLUNGER DRIVE
(DECK-A)
TRIGGER PLUNGER DRIVE
Q912, 915
(DECK-B)
CAPSTAN/REEL MOTOR DRIVE
Q911, 914
(GT440/GT660)
∗
R987
10k (GT440)
1k (GT660)
CN903
Q921
Q922
Q923
R932
(Page 53)
(Page 41)
(Page 51)
(Page 39)
(Page 41)
(Page 40)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
39
39
7-15. SCHEMATIC DIAGRAM - MAIN Section (2/4) -
• See page 58 for IC Block Diagrams.
6
BOARD
MAIN
(3/4)
7
BOARD
MAIN
(4/4)
(4/4)
MAIN
5
BOARD
MIC
K
BOARD
(1/4)
MAIN
2
BOARD
TC
CN008
J
BOARD
IC B/D
IC B/D
9.1
4.7
4
4
4
4
4
4
5.3
4
3.5
8.3
4
0.4
1
4
4
4
4
4
8
4
4
4
4
4
4
0
0
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
0
7.4
3.7
3.7
3.7
3.7
3.7
3.7
0
4.6
4.2
9.1
4.6
1.2
1.8
4
100k
R169
470p
C147
10
R068
E
EP061
22k
R166
47k
R147
22k
R165
0.1
C063
470p
C285
100k
R170
1
2
3
4
5
6
7
8
9
10
11
11P
CN201
A-SOL
A-PHOTE
A-HALF
CAPM+
B-REC-F
M-GND
D-GND
B-PHOTE
B-HALF
NC
B-SOL
1
2
3
4
5
6
7
8
9
10
11
11P
CN202
PB-L
PB-R
A-GND
REC-R
REC-L
REC/PB_SW
+9V
REC-MUTE
0-BIAS
DECK-D-GND
NC
4700p
C268
4700p
C267
2.2k
R202
2.2k
R201
56k
R145
100
R153
100
R151
0.022
C152
6.8k
R125
47k
R160
2200p
C128
1k
R133
C146
C146
100
R164
2.2k
R119
R129
56k
220
R143
50V
1
C130
10V
100
C168
0.1
C120
220k
R156
0.1
C140
50V
C154
1
50V
10
C126
C180
50V
10
C125
50V
10
C109
2SC3052EF
-T1-LEF
Q113
1k
R134
10V
100
C167
R130
56k
∗
∗
∗
R140
C158
∗
16V
100
C170
C155
∗
10V
470
C121
100
R122
C143
2.2k
R124
2200p
C127
50V
1
C138
100p
C171
22k
10k
R136
50V
1
0.022
C151
50V
1
C137
47k
R159
0.01
C122
2.2k
R123
220k
R157
100
R152
15k
R162
2.2k
R138
C145
C157
∗
47p
C123
0.01
C179
100p
C172
47p
C174
220k
R155
15k
R161
2.2k
R137
2200p
C281
220k
R158
R139
220
R144
0.1
C114
50V
1
C129
1M
R163
22k
470p
C160
50V
10
C110
10k
R135
50V
10
C141
47p
C173
100
R131
2.2k
R120
0.022
C149
0.1
C139
50V
10
C142
6.8k
R126
100
R121
C115
470
10V
C144
R128
18K
R127
18k
4.7k
R101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
R2S15207FP
IC103
TUNER-L
AUX-L
REC OUT-L
SAOUT
BASS12
BASS22
TRE2
MID12
MID22
TONE OUT-L
VOL
IN-L
BB12
BB22
OUT-L
CLK
DATA
OUT-R
BB21
BB11
VOL
IN-R
TONE OUT-R
MID21
MID11
TRE1
BASS21
BASS11
REC OUT-R
AUX-R
TUNER-R
CD-R
TAPE-R
GND
REF IN
SURROUND-R
SURROUND-L
MIX1
MIX2
VCC
TAPE-L
CD-L
0.022
C150
2SC3052EF-T1-LEF
Q114
C156
∗
∗
∗
∗
220k
R214
50V
2.2
C211
50V
22
C111
4.7k
R113
50V
1
C116
220
R216
47k
R110
2SC3052EF-T1-LEF
Q111
100
R116
50V
0.47
C119
220
R217
50V
0.22
C212
100k
R111
4.7k
R213
470
R112
680
R114
50V
2.2
C118
2.2k
R212
10k
R108
470p
C117
2SC3052EF-T1-LEF
Q112
1
2
3
4
5
6
7
8
9
10
R2S15208SP
REFIN
LIN
RIN
VCC
DATA
CLK
GND
ROUT
LOUT
REFOUT
1
C164
1
C176
1
C166
1
C178
1
C163
1
C175
1
C165
1
C177
R105
47
47k
R148
R221
4.7k
R222
4.7k
22k
R226
22k
R227
22k
R228
22k
R230
22k
R231
22k
R229
R223
4.7k
R225
4.7k
R224
4.7k
MA2J1110GLS0
D214
1
2
3
4
5
6
7
8
9
10
11
12
13
CN061
13P
HP L-OUT
HP-GND
HP R-OUT
HP-GND
AUX-IN-LCH
A-GND
AUX-IN-RCH
D-GND
USB-LED-OUT
LED+9V
MIC-SIG
MIC+9V
O-MIC-DET
MC2837
D213
MC2837
D211
2SC3052EF-T1-LEF
120k
R173
2.2k
R175
16V
47
C182
220k
R174
22k
R232
22k
R234
MC2836
D212
1000p
C064
220k
R215
8.2k
R211
MA2J1110GLS0
D159
P-DATA
A-CLK
A-CLK
F-DATA
REC-M
BIAS
REC/PB
HP/MIC
U-OUT
B-REEL
A-REEL
VACS
TAPE-STAT
L+R_SIGNAL
A+9V
STREAM
D-GND
4
5
6
7
9
10
11
12
13
14
16
17
18
19
20
21
23
28
33
32
31
29
30
26
34
MAIN BOARD
(2/4)
INPUT SELECTOR,
IC103
IC102
PARAMETRIC
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
18
15
16
3
G
D
5
17
E
12
EQUALIZER
(GT660)
3300p (GT660)
4700p (GT220/GT440)
4700p (GT220/GT440)
C144
∗
0.033 (GT660)
0.047 (GT220/GT440)
0.047 (GT220/GT440)
C155, 156
∗
0.12 (GT440)
0.15 (GT220)
0.18 (GT660)
0.15 (GT220)
0.18 (GT660)
R139, 140
∗
1k (GT660)
1.2k (GT220)
1.8k (GT440)
1.8k (GT440)
C157, 158
∗
0.12 (GT440)
0.15 (GT220)
0.33 (GT660)
0.15 (GT220)
0.33 (GT660)
(GT660)
(GT660)
(GT220/GT440)
TONE CONTROL,
ELECTRICAL VOLUME
BASS AGC
BASS AGC
(GT440/GT660)
(GT660)
(GT220/GT440)
BUFFER
(GT440/GT660)
Q111,112
BAND-PASS FILTER
(GT660)
(CHASSIS)
THE ASSEMBLED
SUPPLIED WITH
DECK BLOCK
TAPE MECHANISM
BLOCK
3
1
(
)
IC102
R141
R142
C153
Q121
O
M
4P
J701
3
4
1
2
2SC5053T100Q
Q701
MAZ8047GMLS0
D703
220k
R701
R702
56k
1k
R703
0.1
C702
C704
0.22
C706
2SC3052EF-T1-LEF
Q702
2.2k
R708
0.47
C707
25V
22
0.001
C705
2W
82
R705
33k
R706
8.2k
R709
JL702
JL706
1
2
3
3P
CN701
D-GND
A+9V
L+R SIGNAL
50V
C703
10
220
R710
25V
220
C701
D-LIGHT SYNC BOARD
+4.1V REGULATOR
SYNC OUT
D-LIGHT
BUFFER
BRACKET
A701
∗
C143
∗
0.033 (GT660)
0.047 (GT220/GT440)
0.047 (GT220/GT440)
C145
∗
∗
3300p (GT660)
4700p (GT220/GT440)
4700p (GT220/GT440)
C180
∗
∗
10 50V (GT660)
47 16V (GT220/GT440)
47 16V (GT220/GT440)
(Page 38)
(Page 35)
(Page 43)
(Page 41)
(Page 40)
(Page 41)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
40
40
7-16. SCHEMATIC DIAGRAM - MAIN Section (3/4) -
• See page 58 for IC Block Diagrams.
(1/4)
MAIN
BOARD
3
(2/4)
MAIN
BOARD
6
(4/4)
8
BOARD
MAIN
CN907
USB R
D
BOARD
CN202
CD
A
BOARD
CN701
DRIVER
B
BOARD
IC B/D
IC B/D
IC B/D
0
3.2
0
0
0
3.2
3.2
3.2
0
0
0
0
3.3
0
0.1
0.1
0
0
3.3
0
0
0.1
0
0.1
0
0
0
3.2
0.1
3.3
3.2
0.1
3.3
3.3
0
0
0
0
0
0
3.2
2.6
0.7
2.6
0.1
3.3
3.3
0.1
3.3
100
R354
100
R303
100
R342
100
R341
10V
1000
C301
100
R353
100
R343
10EDB40-TB3
D301
100
R346
100
R304
100
R344
100
R352
100
R345
10EDB40-TB3
D302
KTA1271Y-AT
Q302
10k
R302
470
R301
100
R326
100
R325
0.1
C361
0.1
C362
0.1
C363
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
27P
CN302
AVDD+3.3V
R-OUT
DAC-GND
L-OUT
A-GND
CD-RST
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
REQ
SBSY
D-GND
D-OUT
DVDD+3.3V
VM+7V
M-GND
M-MUTE
LRCK-IN
BCK-IN
A-IN
ST-REQ
GATE
CLK
DATA
100
R306
100
R311
100
R308
100
R309
100
R307
100
R305
100
R310
100
R324
100
R322
100
R321
100
R323
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74VHC157FT(EKJ)
IC303
SELECT
1A
1B
1Y
2A
2B
2Y
GND
3Y
3B
3A
4Y
4B
4A
ST
VCC
14
13
12
11
10
9
8
7
123456
TC74HC4066AFT(EL)
IC301
1I/O
1O/I
2O/I
2I/O
2C
3C
GND
3I/O
3O/I
4O/I
4I/O
4C
1C
VCC
14
13
12
11
10
9
8
7
123456
TC74HC4066AFT(EL)
IC302
1I/O
1O/I
2O/I
2I/O
2C
3C
GND
3I/O
3O/I
4O/I
4I/O
4C
1C
VCC
100
R328
100
R330
100
R332
10k
R334
KTA1271Y-AT
Q304
RT1N431C-TP-1
Q303
470
R333
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
21P
CN301
DATA
CLK
DO(RST)
DI(CTS)
USB-SO(TXD)
USB-SI(RXD)
BCK
A-IN
GATE
REQ
ST-REQ
USB-RST
LRCK
DVSS
DVDD+3.3V
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
100
R327
100k
R355
100k
R312
2SC3052EF-T1-LEF
Q301
10k
R361
10k
R362
CL001
E-3
E-2
E-1
SENS
TM-F
TM-R
LM-F
LM-R
OPEN-SW
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
REQ
CCE-Z
BUCK-Z
BUS3-Z
BUS2-Z
BUS1-Z
BUS0-Z
DO
SO
CCE-Z
BUCK-Z
CCE-U
BUCK-U
BUS2-U
BUS0-U
BUS1-U
BUS2-U
BUS3-U
BUCK-U
CCE-U
CD-RST
REQ-Z
SBSY
M-MUTE
U-POWER
REQ-U
BUS3-U
BUS1-U
BUS0-U
REQ-U
REQ-Z
BUS1-Z
T-CLK
T-DO
T-CE
SI
DI
USB-RST
BUS2-Z
BUS3-Z
BUS0-Z
CD-POWER
SEL2
SEL1
RDS-CLK
T-DI
T-TUNED
1
5
2
6
4
7
35
36
37
38
MAIN BOARD (3/4)
IC303
DATA SELECTOR
IC302
BUS SWITCH
IC301
BUS SWITCH
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
17
E
12
Q303, 304
B+ SWITCH
B+ SWITCH
Q301, 302
+9V
TUNED
PLL_CE
AM
THE ASSEMBLED
FM75
TUNER-R
PLL_DI
SUPPLID WITH
BLOCK
TU-GND
TUNER-L
TUNER(FM/AM)
PLL_DO/STEREO
PLL_CLK
E-2
OPEN_SW
E-3
D+3.3V
TBL_ADDRESS_SENS
LM-R
E-1
LM-F
TM-F
TM-R
M-GND
M-GND
M+9V
13
1
1
9
(COAXIAL)
ANTENNA
(
)
Ω
(Page 38)
(Page
41)
(Page
39)
(Page 33)
(Page 29)
(Page 31)
Click on the first or last page to see other HCD-GT220 / HCD-GT440 / HCD-GT660 / MHC-GT220 / MHC-GT440 / MHC-GT660 service manuals if exist.