Hitachi UT42X902/D8MW Service Manual page 73

Schematic Diagram page 19 /28
PW01
501568-14H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
G1
G2
GND1
PW02
FH28-50HLow
1
2
1005 3
CW09 1 2
4
100p-C
1 2 5
CW10
100p-C
6
1005 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
CW08
1 2
29
100p-C
1005 30
31
32
NC
33
GND1 NC
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
G1
G2
GND1 GND1
Main-BD to Terminal-BD Connector
• Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
TABLE OF CONTENTS
3
From
Terminal-BD
AMP_PWR 002:5E
003:G6
CW06
100p-C
1005
+5.6V 002:5C
003:G4
CW05 004:2A
100p-C 008:4A
009:1C
1005
011:1B
012:1A
015:2A
016:1A
STB+5V
002:7A
CW04
012:4E
470p
012:8E
1005
013:5C
014:2B
014:2D
015:2A
5D
AUD_RST
008:5E
HDRxMCK
011:8E
002:1E
POWER2TD
012:1D
HP_MUTN 8C 015:2B
HP_DET 009:1B 016:1B
CTS
014:2C
RTS
014:2C
RxD
014:2C
TxD
014:2C
DTR
014:2B
IRo_term
015:8D
ADC_LRCK
005:1E
ADC_DAT
005:1E
ADC_BCK
005:1E
DLY_BCK 005:7E
DLY_LRCK 005:7E
DLY_DAT 005:7E
SCL_AUD
005:7D
SDA_AUD
005:7D
AUD_MUTn 6D
AUD_RSTn 6C
AUD_SEL
006:3C
4E
VGA_SDA 005:7D
VGA_SCL 005:7D
Dsub_H 4B
012:1E
PWRSW_N
Dsub_V 4B 013:5D
PC_Red 009:1D
012:1E
PON_PSU
PC_Green 009:1D 013:5D
PC_Blue 009:1D
4
5
004:5A
005:1A
GEN+3.3V
008:1D
009:7C
RW03 0
Š 1 2
RW04 0
1 2
Dsub_H
2D
Dsub_V
2D
CW02
0.1/16
1005
GND1
IW01
SN74LV14APW
GND1
RW01 0
1 2
RW02 0
‰
1 2
Schmitt Trigger Bu er
002:8B
005:1E
RW06 RW34 QW07
012:1E
10k 2 10k 2
1 2 4D 1 2 2SC5383-T111-1F
3 3
PWR_OFF
7D
1 1
QW02
2SC5383-T111-1F
RW26 RW33
82k 82k
GND1 GND1
SPK AMP Mute
002:7A
012:4E
012:8E
013:5C STB+5V
014:2B
014:2D
015:2A
2C
DW01
1 2 1
1SS355
RW08
2
47k
1 2 3
1
RW40 QW01
47k 2SC5383-T111-1F
1 2
GND1
DW06
1 2
002:8B PWR_OFF
005:1E 1SS355
012:1E
4C
7D
DW02
002:5D
1 2
AUD_MUTE
003:C6 008:5E
003:G4 1SS355
004:2E
005:1C
006:1A
009:1A
011:1A
016:1A
017:1A
D+3.3V
017:6C
019:3E
019:4A
019:4D CW03
0.1/16
019:6A
1005 IW02
019:6D
TC7SZ08FU
008:5E
HDRxMUTE IN_B VCC
011:8E 1 5
IN_A
AUD_SEL 2
006:3C
2D DW03
1 2
3 GND OUT_Y 4
1SS355
AUD_SEL SELECT
L HDMI ADC(PC)
H ADC(PC) HDMI
GND1
72
6
PC_HD
009:1E
PC_VD
009:1E
H_FREQ3
012:8D
V_FREQ3 012:8D
Audio Reset
AUD_RSTn
2D
RW32
82k 2
1 2
3
1
10/23 RW32
10k -> 82k QW06
2SC5383-T111-1F
RW31
82k
HP_MUTE
008:5E
GND1 002:8B
005:1E
012:1E
4C
PWR_OFF
4D
PWR_SW_MUTE
002:7A
012:4E
012:8E
014:2B
AUD_MUTn 2D 014:2D STB+5V
015:2A
RW14
019:5C
82k 2
2D
2 3
3B
1
QW03
2SC5383-T111-1F
RW28
002:1E
82k
012:1D
015:2B RW37
47k
016:1B 1 2 3
POWER2TD
3A
GND1
GND1
7
D8MW
HP_MUTN
2C
RW35
2
DW07
82k
1 2 1 2 3
1
1SS355
QW08
2SC5383-T111-1F
DW08
1 2
1SS355
DW09 GND1
1 2
1SS355 HP Mute
DW12
1 2
1SS355
DW11
1 2
1SS355
2
1
QW09
2SC5383-T111-1F
DW10
1 2
1SS355
MAIN BOARD SHEET: 020
Connector / etc.
A
B
C
D
E
F