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1-1-3. SCHEMATIC DIAGRAM – MAIN Board (2/3) (for Singapore model of HCD-HX5) –
R250
22k
Q302
2SC3052F
KTA1271Y-AT
CN309
15P
BT_AV_ROLE
BT_CTS
BT_RXD
BT_RTS
BT_TXD
BT_RESET
DGND
DVDD5
AVDD5
AOUTL
R105
(Refer to page 29
on service manual)
AGND
AOUTR
R205
AINR
AGND
R233
AINL
R133
EP301
(CHASSIS)
CN310
19P
/OTW
OVF
PGMUTE
SOFTMUTE
/RST
DGND
/SD
SCDT
SCSHIFT
SCLATCH
DGND
(Refer to page 39
NSPMUTE
on service manual)
INIT
D+3.3V
L-IN
AGND
R-IN
AGND
A+5V
A1
A2
A3
A4
A5
(Page 4)
HCD-HX3/HX5/HX7
(2/3)
+5V REGULATOR
IC308
MM1615ANLE
C318
0.01
R249
Q324
470
RT1N141C
R248
C319
10k
R251
220
1k
10V
65
Q302,323,324
B+ SWITCH
Q323
60
61
31
34
32
RIN
63
C247
1 50V
4.7k
R106
47k
AOUTL
4.7k
R206
47k
AOUTR
R228
100k
4.7k
R232
R231
C248
4.7k
2.2k
1 50V
4.7k
R132
R131
C148
LIN
4.7k
2.2k
1 50V
47
7
45
44
43
42
33
40
39
D203
1N4002-B5
OUTPUT SELECTOR
IC310
MC14052BD
Y0
VCC
Y2
X2
C147
1
Y
X1
50V
Y3
X
R123
Y1
X0
10k
INH
X3
VEE
A
R226
100k
GND
B
R126
R128
100k
100k
Q328
RT1N141C
INVERTER
R209
IC315
R109
RT3C55M
10k
10k
MUTING
E1
C2
B1
B2
C1
E2
R110
10k
R210
10k
Q304
RT1P141C
Q303,304
MUTING CONTROL
SWITCH
Q303
RT1N141C
5
5
Q310
KTC3203Y
FAN MOTOR
DRIVE
C350
0.1
C321
0.1
+9V REGULATOR
IC305
KIA7809API
O
I
G
C308
C315
C302
470
0.1
0.1
10V
D209
1N4002-B5
IC306
+7V REGULATOR
TA7807S
+4V REGULATOR
O
I
G
C304
C337
0.1
1
IC316
RT3C55M
MUTING
R117
100k
E1
B1
C1
R118
R218
1k
1k
R116
47
Q307
RT1P141C
C112
220
10V
R115
22k
R216
47
Q306
HEADPHONE AMP
RT1N141C
NJM4580MD
C107
R111
1 50V
1k
Q306,307
C212
220
MUTING CONTROL
10V
SWITCH
R212
100k
R213
4.7k
C207
R211
1
1k
50V
R215
22k
HCD-HX3/HX5/HX7
R355
R354
100
4.7k
C351
D310
MC2837
100
16V
R356
10k
R357
R353
CN316
2.2k
100
3P
M901
M
(FAN)
C301
CN304
2200
2P
16V
11V
GND
D205
1N4002-B5
(Refer to page 10
D206
on supplement-1)
1N4002-B5
D207
1N4002-B5
IC307
TA7804LS
O
I
G
C348
C307
1
0.1
CN321
R421
4P
100k
+11V
GND
C353
0.01
R422
DVDD_5V
10k
C2
DGND
B2
(Refer to page 2
on supplement-1)
E2
R217
100k
R423
22k
C4
C3
C1
C2
(Page 6)
Q305
R113
KTC3198GR
4.7k
RIPPLE FILTER
C309
R435
0.01
22k
R112
100k
C366
47
25V
R127
C363
22k
0.1
IC317
R114
2.2k
R214
C364
2.2k
220 10V
C111
220 10V
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