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HCD-DC1
Ver 1.1
6-9.
SCHEMATIC DIAGRAM – MAIN Board (1/3) –
SJ302
2P
L
AUDIO IN
MD(VIDEO)
R
(EXCEPT MX)
CN301
18P
SOL+12V
SENSOR-OUT
PLAY-SW
MO+12V
B+5V
MO GND
TC-SW
C9
L-OUT
+8.0V
REC IN-L
A-GND
LINE MUTE
(Page 23)
REC/PB
R-OUT
REC IN-R
REC-MUTE
TC BACK LIGHT
TC BACK LIGHT
AU MUTE
TC BACK LIGHT
REC-MUTE
REC/PB
LINE MUTE
(Page 26)
B+5V
MO +12V
PLAY-SW
SENSOR-OUT
SOL+12V
TC-SW
(Page 26)
MO-GND
C-SCOR
SENS
SQSO
HOLD
CLK
LATCH
XRST
SQCK
(Page 26)
DATA
D+5V
D-GND
CN101
19P
CD+8V
P-GND
C-SCOR
SQCK
SENS
SQSO
HOLD
CLK
LATCH
DATA
XRST
A+5V
CD-R
(Page 21)
A-GND
CD-L
D-GND
D-OUT
D+5V
LRCK
OPTICAL
DIN
OPTICAL
OUT
VDD
DIGITAL
OUT(CD)
DIGITAL
GND
IC321
TOTX178X
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : CD
[
] : MD
〈〈
〉〉 : TAPE
C107
R214
JR303
4.7
33k
0
50V
JR304
R114
33k
0
C207
JR215
4.7
C117
C217
0
50V
100p
100p
R213
3.3k
R320
R113
330k
3.3k
C1
C2
C3
C4
INPUT SELECT
SWITCH,MIX,
TONE CONTROL,
ELECTRICAL
VOLUME
IC323
BD3861FS
C5
C6
C101
4.7
50V
C7
C201
4.7
50V
C8
C8
R101
4.7k
C7
C6
C5
D320
R102
1SS355TE-17
1k
C4
C3
C2
C1
C9
D321
1SS355TE-17
D1
D2
D3
D4
D5
CD +8V
REGULATOR
D6
IC306
KIA7808API
D7
D8
O
I
Q312
G
KRC103S
D1
Q313
D7
Q312,313
KRA102S
MUTING
D2
DRIVE
D3
D4
D5
C372
470p
D8
C333
C332
1000p
1000
D6
10V
(US,CND)
C382
47P
L304
0.22µH
C374
0.1
OPTICAL
TRANSCEIVER
C214
4.7
R218
50V
1k
C109
C209
1500p
1500p
R216
R116
R117
R217
R118
3.3k
3.3k
5.6k
5.6k
1k
C114
4.7
50V
R350
4.7k
D309
MTZJ-T-77-8.2B
C339
L307
470
2.2µH
16V
R201
R110
R210
R209
R202
4.7k
2.7k
2.7k
4.7k
1k
R109
C370
4.7k
1000p
Q305
Q306
KTC2026
KTC2026
Q307
+10V
CD +5V
KRA102S
R314
REGULATOR
REGULATOR
470
R312
470
R313
Q308
470
KRC103S
C365
C331
C329
C328
220
220
C330
R351
470
100
10V
10V
0.1
4.7k
16V
16V
D308
D307
MTZJ-T-77-5.6B
MTZJ-T-77-10B
Q307,308
REGULATOR
CONTROL SWITCH
C170
*
R104 R204
* C170,270
2.2k
0.022
(HK,MX,MY,SP)
0.033
(US,CND,AEP,UK)
TU1
SUPPLIED WITH
THE ASSEMBLED
BLOCK
24
24
R130
470
IC324
NJM3414AV
(TE2)
C130
100p
Q200
DTC343TK-T
R131
-146
4.7k
MUTING
VCC
Q100
DTC343TK-T
-146
MUTING
HEADPHONE AMP
Q330
KRC103S
MUTING
DRIVE
C304
R232
R132
100
47k
47k
16V
C346
0.1
L303
10µH
Q302
FM +7.5V REGULATOR
Q302
KTC3205-Y-AT
Q301
KTC3205-Y-AT
+9V
Q303
KRA102S
REGULATOR
R311
100
Q304
R310
KRC103S
100
C326
C325
C324
C323
C360
C340
100
0.1
470
0.1
470
10
16V
16V
16V
50V
Q303,304
D305
MTZJ-T77-10B
REGULATOR
CONTROL SWITCH
C270
*
R318
R203
R103
47k
2.2k
4.7k
4.7k
ANTENNA
FM 75 Ω
(Page 26)
FM 75 Ω
AM
(US,CND,MX)
A1
R230
C305
470
100
16V
R305
100
VEE
A2
C230
100p
A3
R231
4.7k
A4
A5
A6
R304
100
(Page 25)
A7
A8
A9
A10
A11
A12
A13
A14
A15
D322
1SS355TE
-17
D323
1SS355TE
-17
(Page 26)
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