Hitachi UT42V702/D8MW, Service Manual

Page: 73 / 90

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