
HCD-GTR88
HCD-GTR88
32
32
• See page 43 for W
aveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.
6-15.
SCHEMA
TIC DIAGRAM - MAIN Board (2/3) -
19
17
32
20
7
21
15
22
14
16
17
18
15
MAIN
BOARD
(3/3)
(Page 33)
10
13
11
R063
2.2k
Q063
2SC3052EF-T1-LEF
0
0.7
R062
2.2k
Q062
2SC3052EF-T1-LEF
JR061
0
E4
41
72
76
0
0.7
RT1N431C-TP-1
SWITCH DRIVER
MUTE SW
MUTE SW
SWITCH
Q681
R520
10k
JR651
0
Q684
KTA1271Y-AT
8.9
8.9
8.2
R216
100
R273
51k
R253
470
R202
0
3.2
0
R683
1.2k
R133
4.7k
Q178
2SC3052EF-T1-LEF
BASS AGC
C181
10
50V
C191
10
50V
C184
0.01
R196
10k
C183
0.022
50V
0.47
C147
C135
3900p
R190
1M
R184
1k
C185
3900p
C133
0.022
C149
47
10V
C141
10
50V
0.047
C152
R182
4.7k
C132
0.047
R131
1k
C134
0.01
R183
4.7k
C124
1
50V
C148
100
10V
R132
4.7k
C137
10
50V
C155
3300p
C154
470
10V
C150
0.1
C153
0.1
R186
2.7k
R136
2.7
E4
E4
C182
0.047
C187
10
50V
C151
0.1
C109
10
50V
Q128
2SC3052EF-T1-LEF
BASS AGC
C105
3300p
C127
0.22
C128
0.18
C178
0.18
C177
0.22
R127
680
R128
15k
R178
15k
R188
10k
R138
10k
R610
100k
E4
R217
5.1k
2SC3052EF-T1-LEF
Q210
R122
10k
R121
10k
R194
1k
R141
1k
R215
330k
R177
680
C131
10
50V
C212
2.2
4.7
C194
4.7
C193
4.7
C146
4.7
C143
4.7
C144
JL110
JL109
JL408
JL121
JL122
JL438
JL439
12345678
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
TAPE-R
CD-R
NC
GAMER
INGAINOUTR
RECAR
RECBR
SA1
SA2
TRER
MID1R
MID2R
BASS1R
BASS2R
TONEOUTR
VOLINR
BB1R
BB2R
OUTR
AGCOUTR
DATA
CLK
ILLUM
SWOUT
AGCC
AGCOUTL
OUTL
BB2L
BB1L
VOLINL
TONEOUTL
BASS2L
BASS1L
MID2L
MID1L
TREL
RECBL
RECAL
INGAINOUTL
GAMEL
NC
CD-L
Tape-L
ST-L
PC-L
NC
MIC
VC
REFOUT
REFIN
GND
VCC
DPLL/SURL
DPLR/SURR
NC
PC-R
ST-R
JL423
1
2
3
4
5
6
7
8
9
10
11
12
13
CN410
13P
M2-
M2+
M1-
M1+
SW-COM
SW3
SW1
SW7-CHACK
SW2
SW6-CLOSE
SW5-STOCK
SW8-OPEN
NC
C399
22p
JL603
1
2
3
4
5
6
7
8
9
CN690
9P
NC
NC
IFSCK
DGND
IFSOD
IFSDI
XSYSRST
XIBSY
XIFCS
JL606
JL607
JL601
JL604
JL602
JL605
JL611
JL610
JL615
JL613
JL617
JL616
JL612
JL622
JL621
JL624
JL625
JL623
JL620
1
2
3
4
5
6
7
7P
CN680
R-IN
AGND
L-IN
AGND
L-OUT
AGND
R-OUT
JL635
JL630
JL634
JL633
JL636
JL025
1
2
3
4
5
6
7
8
9
9P
CN450
TP-STATE
M+9V
M-GND
REC-Rch
REC-Lch
A-GND
PB-Rch
PB-Lch
A+9V
JL021
JL020
JL027
JL023
JL026
JL024
JL028
JL022
JL632
JL631
C142
4.7
R142
6.2k
R105
10k
JL643
JL642
JL645
JL646
JL644
JL641
JL659
JL649
JL661
JL662
JL660
JL648
JL647
R646
560
R615
10k
R643
470
R648
47k
Q657
ISA1235AC1TP-1EF
R616
560
R641
470
D651
10EDB40-TB3
R663
22k
Q648
2SC3440-T12-1F
R662
33k
R657
2.7
R656
47k
R653
560
C655
220
10V
R652
47k
R650
47k
R644
47k
R613
2.2k
Q655
KTA1273-Y-AT
REGULATOR
R614
470
Q656
2SC3052EF-T1-LEF
REGULATOR
R647
47k
Q644
2SC3440-T12-1F
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
MOTOR DRIVE
REGULATOR
MOTOR DRIVE
MOTOR DRIVE
R617
2.2k
R655
47k
R642
47k
R658
2.7
Q658
ISA1235AC1TP-1EF
REGULATOR
R664
2.2k
2SC3440-T12-1F
R654
560
R645
560
R649
470
R651
470
C656
0.1
Q643
2SC3440-T12-1F
C698
0.1
C697
0.1
C398
22p
C397
22p
C396
22p
C395
22p
C393
22p
C392
680p
JL608
JL609
D104
MA2J1110GLS0
JL145
JL154
C192
4.7
E4
R192
6.2k
R155
10k
R137
6.2
R187
6.2k
JL668
C242
0.47
C214
2.2
C215
2.2
C265
2.2
JL112
JL441
1
8
3
4
5
6
7
CN650
8P
M+9V
Vbus_Det
D+3.3V
DGND
OC1
OC2
RST
1
2
3
4
5
6
7
CN470
7P
MIC SIGNAL
MIC GND
A+9V
MIC/HP DET
HP-L
HP GND
HP-R
MC2837
D392
Q640
2SA1365-T112-1EF
Q641
2SA1365-T112-1EF
Q645
2SA1365-T112-1EF
Q646
2SA1365-T112-1EF
R659
2.7
D652
10EDB40-TB3
D653
10EDB40-TB3
C501
47p
C502
470p
4.5
C551
470p
C552
470p
C503
470p
C553
470p
C508
470p
CD-L
MIC
PC-L
PC-R
ST-R
ST-L
CD-R
M1-
M1+
M2-
M2+
5
6
7
18
19
21
22
34
39
37
36
35
38
TC-PB-L
TC-PB-R
TC-REC-L
47
50
45
44
27
TC-PB-L
TC-PB-R
MIC
CD
MECHANISM
DECK
C236
0.15
R233
100k
R240
10k
R241
10k
R235
6.8k
C294
0.1
R231
27k
C273
22p
8765
4321
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
57
58
C270
47
16V
C291
470
10v
C272
47p
C209
0.1
8765
4321
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R221
470
R222
24k
R206
10k
8765
4321
SW PREAMP
IC253
NJM4558V-TE2
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R271
470
R278
1k
R256
10k
R228
1k
R272
24k
R298
1k
C218
47
16V
C222
47p
C220
47
16V
C223
22p
R299
1k
C290
100
10v
C268
47
16V
C292
1000p
R236
6.8k
R285
6.8k
R286
6.8k
8765
4321
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
C286
0.15
C239
0.15
C289
0.15
R290
10k
R291
10k
R270
8.2k
R220
8.2k
R243
47k
R292
1k
R293
47k
C275
0.1
C276
470
10V
C258
4.7
C208
4.7
R277
33k
R227
33k
R258
27k
R208
27k
8765
4321
SW PREAMP
IC255
NJM4558V-TE2
OUTPUT
INPUT-
INPUT+
GND
INPUT+
INPUT-
OUTPUT
VCC
R274
5.6k
R223
51k
R225
47k
C224
1
50v
C274
1
50v
R224
5.6k
R275
47k
C285
0.1
C229
10
50V
C279
10
50V
C231
0.056
C234
0.068
R281
27k
C281
0.056
C284
0.068
R283
100k
R242
1k
C269
4.7
C219
4.7
FR PREAMP
IC252
NJM4558V-TE2
USB RECORD PREAMP
IC251
NJM4558V-TE2
SW-L
SW-R
SW-R
SW-L
USB-REC-R
USB-REC-L
66
R280
33
SW-R
SW-L
CD-R
CD-L
TC-REC-R
VACS
TC-REC-L
TC-REC-R
Q647
DMB19
BOARD
(1/3)
CN1
106
(Page 25)
T
HUB
BOARD CN1
502
(Page 42)
O
DMB19
BOARD
(3/3)
C
N
4602
(Page 27)
R
MIC
BOARD NO700 (Page 35)
P
TC
BOARD CN502 (Page 36)
J
IC B/D
R2A15216FP
IC400
IC400
INPUT SELECTOR
ELECTRICAL VOLUME
4.5
4.5
4.5
4.5
4.5
4.5
0
0
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
0
9.0
4.5
IC252
IC251
IC253
IC254
IC255
8.4
4.2
4.2
4.2
4.2
4.2
4.2
8.4
4.2
4.2
4.2
8.4
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
9.0
4.6
4.6
4.6
8.6
4.6
4.6
8.4
4.6
4.6
4.6
4.6
4.6
4.6
8.4
0
8.4
7.8
4.9
4.4
7.8
5.0
8.3
4.0
8.4
5.0
0
5.0
0
5.03
5.02
5.03
5.04
5.02
5.03
5.03
5.03
5.04
5.02
5.05
5.02
5.0
0
5.0
0
R211
82k
R210
1k
4.0
1.0
1.6
4.5
4.2
4.6
4.6
4.1
4.5
MAIN BOARD (3/3)
(Page 33)
13
MAIN
BOARD
(1/3)
(Page 31)
12
1000p
C002
MAIN BOARD
(2/3)
SW PREAMP
IC254
NJM4558V-TE2
BAND PASS FILTER
123456789
1
0
1
1
14
15
12
13
A
B
C
D
E
F
G
H
I
J
R203
470
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D