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HCD-GTX999
HCD-GTX999
33
33
6-18. SCHEMATIC DIAGRAM - MAIN Board (3/3) -
• See page 48 for IC Block Diagrams.
3.7
0
1.2
3.3
5.1
4.1
17.6
0.8
5.2
11.9
0.8
3.7
25
11.9
8
0
3.7
17.6
9
13.9
4.3
12.6
13.3
4.3
4.8
0.6
0
0
0.6
0
0.6
4.5
4.5
4.5
4.5
4.5
4.5
9
3.7
25V
4700
C930
RK36LF-A4
D911
25V
2200
C950
1
2
3
4
5
16V
680
C913
10EDB40-TB3
D950
10EDB40-TB3
D951
D2SB60A-F04
D930
10V
3
1
2
470
C951
KIA7809API
IC950
47uH
L930
470
R911
47uH
L910
2.2k
R933
16V
680
C933
47k
R932
2.2k
R912
1
2
3
4
5
470
R931
35V
470
C911
10k
R913
RK36LF-A4
D931
MAZ8047GMLS0
D961
220
C960
16V
2.2k
R962
2SC3052EF-T1-LEF
Q961
KTA1271Y-AT
Q960
16V
47
C962
100k
R963
10k
R964
1
2
3
NO101
3P
AUDIO Lch
A_GND
AUDIO Rch
1
2
3
4
5
10k
R941
10V
470
C941
0.1
C942
50V
10
C940
1N5402-F46
D912
50V
2.2
C184
R233
470k
Q221
RT1P141C-TP-1
47k
R139
R232
4.7k
1k
R140
R231 47k
C229
50V
4.7
47k
R189
Q130
2SC3052EF-T1-LEF
1k
R190
Q180
2SC3052EF-T1-LEF
R142
2.2k
C228
50V
4.7
R192
2.2k
Q220
2SC3052EF-T1-LEF
100k
R227
1k
R228
R230
2.2k
220k
R109
33k
R158
220k
R159
33k
R108
MC2838-T112-1
D915
R916
100
R918
10k
10k
R940
8
7
6
5
4
3
2
1
NJM4558M-TE2
IC103
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CN201
VF1
VF2
VG
D-GND
D-GND
D+3.3V
SA SIGNAL
E+3.3V
GC DATA
GC CLK
SIRCS
GC RST
POWER KEY
DISPLAY KEY
STBY LED
M+12V
M-GND
R224
22k
R222
330k
50V
C223
10
R223
10k
C220
0.022
R226
47k
C219
0.047
16V
C226
100
C222 0.22
R225
47k
R221
33k
1000p
C224
10V
470
C225
C227
1000p
KIA7808API
IC920
16V
47
C921
10V
470
C963
0.1
C919
0.1
C918
0.1
C934
0.1
C935
MA2J1110GLS0
D962
10k
R917
D3SB60F3
D910
1
2
3
4
5
6
7
8
9
10
11
12
12P
CN207
FAN DET
FR RLY
SW RLY
DBFB
STK MUTE
PROTECT
THERMAL VACS
UNREG LOW
UNREG GND
-VL
P-GND
HP DET
1
2
3
4
5
6
6P
CN104
A_GND
FL_IN
A_GND
FR_IN
A_GND
SW_IN
JR101
0
JR151
0
0
JR950
0
JR910
0
JR930
0
JR911
0
JR920
47k
R942
47k
R943
47k
R944
1
2
3
4
4P
CN904
HDD_12V
HDD_GND
HDD_GND
HDD_5V
50V
10
C970
25V
2200
C931
50V
C915
1
MC2838-T112-1
D964
35V
4700
C910
100
R1108
100
R1109
100
R1110
100
R1111
2.2k
R961
RT1N141C-TP-1
Q965
63V
100
C974
47k
R1161
47k
R1162
2.2k
R1164
330
R1165
10k
R1166
330
R1167
0.1
C985
0.1
C986
0
R1169
A-GND
+3.3V
A-GND
+8V
C06
C07
A-GND3
VDD
A-GND
VCC
B05
B04
B03
+12V
C8
1
2
3
4
5
5P
NO102
MIC_GND
NC
MIC_SIGNAL
MIC_DET
A+9V
1
2
3
4
5
6
NO901
6P
D-GND
NC
AC-DET
E+10V
STBY_RLY
AC_COUNT
1
2
3
4
4P
NO903
D+5V
NC
GND
D+2V
1
2
3
4
5
6
7
8
9
9P
NO902
+VFL
NC
D-GND
VF
VF
AC4
AC4
AC3
AC3
LINE_MUTE
HP_DET
AC_DET
STBY_RLY
FAN_DET
FR_RLY
SW_RLY
STK_MUTE
PROTECT
THERMAL_VACS
AC_COUNT
SA_SIGNAL
GC_DATA
GC_CLK
SIRCS
GC_RESET
POWER_KEY
DISPLAY_KEY
STBY_LED
MIC_DET
MIC
AUDIO_R
AUDIO_L
IC103
LINE AMP
IC950
IC930
IC940
MAIN BOARD (3/3)
IC920
IC910
C02
C04
1
2
4
C10
MUTING
MUTING
MUTING
MUTING
CONTROL
Q960,961
REGULATOR
+9V
REGULATOR
REGULATOR
+3.3V
+5V
REGULATOR
POWER ON/OFF
CONTROL
+8V
REGULATOR
REGULATOR
+12V
HARD DISK
DRIVE
(80GB)
(2/2)
3
1
2
A
H
11
G
5
D
4
12
B
14
C
15
16
2
M
O
6
I
E
9
7
8
3
F
10
13
1
Note:
Refer to “REPLACEMENT PROCEDURE
OF HDD” (page 4) of the servicing notes
for HDD is exchanged.
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299