Hitachi UT42X902/D8MW Service Manual page 64

Schematic Diagram page 10 /28
1.8V Reg
002:5D
003:C6 D+3.3V IH05
003:G4 MM1661JHBE
004:2E
D+3.3V 8 Vin
005:1C
006:1A
009:1A RH88 CH36 CH21 CH37 CH74
NC-7
7
016:1A 1.0k 22/6.3 10/10 1.0/16 0.1/16
2125 2125 1005 G1
017:1A
NC-6
017:6C 6
019:3E GND1 GND1
019:4A
GND1 5 Cont
019:4D
019:6A
019:6D
020:4E
002:5C
003:G4 +5.6V
004:2A
008:4A
+5.6V
009:1C
012:1A
015:2A
CH32 CH34 RH70
016:1A 1.0/16 1.0/16 47k
020:2B
GND1 GND1 GND1
IH07
TK11150CSC
RH86
10k
RH87
1.0k
1 2
4F HDMI5VON
CH33
1.0/16
GND1
005:7D SDA1_HDM
SCL1_HDM
005:7D
QH07
HPLGIN_N
012:1A SSM3K15FU
D RH83 RH54
2 1.0k 47k
G
3
GND1
1 RH84
S
1.0k
GND1 RH08
1.0k
GND1
2
3
QH01
008:5E HDMI_HPD
RT1N144U
1
RH85 QH08 RH71
47k 47k
SSM3K15FU
GND1 GND1
RH11
10k 2
1 2 3
QH02
009:1B EDID_PR
2SC5383-T111-1F
1
RH12
47k
RH40
0 GND1
1 2
GND1
RH05
100
1 2
HTPLUG
DH03 CH70
0.01/25
UDZS5.6B
+5V
1005
GND
GND1
RH01 1 2 47
SDA
RH02 1 2 47
SCL
RH04 1 2 100
RH03 1 2 0
N.C.
CH03 CH01
CEC
EZJZ0V80010 EZJZ0V80010
RXC-
GND1 GND1
GND
RXC+
RX0-
GND
RX0+
RX1-
GND
RX1+
RX2-
GND
RX2+
RH41
GND1
0
1 2
GND1
GND1 GND1 GND1 GND1
CEC
012:8E CEC
HDMI_NC
012:8E
HDMI_RST
008:5E
RH90
47k 2
005:1E
1 2 3
G_XRST QH09
012:8B
2SC5383-T111-1F
1
RH92
47k
GND1
• Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
TABLE OF CONTENTS
3
1mA
LH01
BLM18BD471SN1D
1 2
Vout 1
1608
CH23 CH82 CH26
NC-2
2
10/10 0.1/16 10/10
1005
2125 2125
GND
3
343mA
(DGND) CVCC18_HDMI
Cn 4 GND1
CH76
470p
1005
CH27
CH83
0.1/16 10/10
1005
2125
GND1
252mA
(CGND) D+3.3V
GND1
CH28
CH84
0.1/16 10/10
1005
2125
129mA
(IOGND) AVCC18_HDMI
GND1
LH03
BLM18BD471SN1D
1 2
1608
CH25
CH81
0.1/16 10/10
1005
2125
(AGND_HDMI) 51mA
GND1
AVCC33_HDMI
LH07
BLM18BD471SN1D
1 2
1608
CH75 CH22
0.1/16 10/10
CH79 CH40 CH41
1005 2125
0.1/16 1000p 1000p
1005 1005 1005
(AGND_HDMI)
GND1 GND1
(AGND_HDMI) (AGND_HDMI)
GND1
QH03
100mA
SSM3K15FU
DH01 RB521G-30
1 2
G
CH20 3
100mA
10/10
1 2
2125
1
DH02 1SS355 TPH04
GND1 1 TPH05
RH82
1 220 2
RH89
0
1 2
IH03
SN74CB3T3306DCU
1 1OE
GND1
1A
2
RH13 RH14 RH15
10k 47k 47k
1B
3
4 GND
GND1
RH80
CH73
0
0.1/16 1 2
RH55
1005
470k
GND1
GND1
IH02
S-24CS02AFJ-TB-G
1 A0 VCC 8
1 TPH01
2 A1 WP 7
1
TPH03
A2 SCL
3 6
1
TPH02
4 GND SDA 5
GND1
TMDS
CH02
Impedance 100ohm
EZJZ0V80010
GND1
4
5
CH88 CH48
0.1/16 1000p
1005 1005
GND1 (DGND)
CH52 CH93
1000p 0.1/16
1005 1005
(CGND)
GND1
(CGND)
GND1
CH53 CH94
IC SiI9125
1000p 0.1/16
1005 1005
(IOGND)
GND1
(IOGND)
GND1
CH86 CH45 CH87 CH47 CH90 CH51
0.1/16 1000p 0.1/16 1000p 0.1/16 1000p
1005 1005 1005 1005 1005 1005
(AGND_HDMI) (AGND_HDMI) (AGND_HDMI)
GND1 GND1 GND1
IC SiI9125

CH80 CH42 CH43 CH85 CH44 CH46 CH89 CH49 CH50
0.1/16 1000p 1000p 0.1/16 1000p 1000p 0.1/16 1000p 1000p
1005 1005 1005 1005 1005 1005 1005 1005 1005
GND1 GND1 GND1
(AGND_HDMI) (AGND_HDMI) (AGND_HDMI) (AGND_HDMI) (AGND_HDMI)
GND1 GND1 GND1
(AGND_HDMI)
RH50 RH51 RH52 RH53
470k 470k 470k 470k
D
2
1
S
CH71 RH46 CH69 RH47
0.01/25 10k 0.01/25 10k
1005 1005
CH78 GND1 GND1
AVCC18-37
0.1/16
Vcc 8 1005
AVCC33-38
RH60 1 2 6.8
R0XC-
RH61 1 2 6.8
2OE
7 R0XC+
GND1
AGND-41
2B
6
AVCC33-42
RH62 1 2 6.8
R0X0-
RH63 1 2 6.8
2A 5
R0X0+
AGND-45
RH81
0 AVCC33-46
1 2 RH64 1 2 6.8
R0X1-
RH65 1 2 6.8
R0X1+
AGND-49
AVCC33-50
RH66 1 2 6.8
R0X2-
RH67 1 2 6.8
R0X2+
AGND-53
AVCC18-54
RSVDNC-55
AVCC33-56
R1XC-
R1XC+
AGND-59
AVCC33-60
R1X0-
R1X0+
AGND-63
AVCC33-64
1
TP034
R1X1-
1
TP035
R1X1+
AGND-67
1
TP036
AVCC33-68
1
TP037
R1X2-
R1X2+
1
TP038
AGND-71
1
TP039
AVCC18-72
1
TP040
1
TP041
GND1
AGND_HDMI
LH08
BLM18BD471SN1D
1608
1 2
1 2
CH29
LH09
10/10 BLM18BD471SN1D
CH30 CH31
1608 CH91 CH92
2125
0.1/16 10/10 0.1/16 10/10
1005 1005
2125 2125
GND1
GND1 GND1
D+3.3V
RH20
33
1 2
RH21 RH91
10k 1.0k
DH05
CH17
1SS355
470p
2 1
1005
IH10
HDMI5VON GND1
1B PST8328NR
RH93
22k
1 2
1 OUT CD 5
2 VDD
CH12
0.01/25
1005 GND NC
3 4
GND1
GND1 GND1
63
6
IC SiI9125
CH54 CH56 CH95 CH58 CH60 CH97 CH62 CH64 CH99 CH66
1000p 1000p 0.1/16 1000p 1000p 0.1/16 1000p 1000p 0.1/16 1000p
1005 1005 1005 1005 1005 1005 1005 1005 1005 1005
(CGND) (CGND) (CGND)
GND1 GND1 GND1
(CGND) (CGND) (CGND)
GND1 GND1 GND1
CH55 CH57 CH96 CH59 CH61 CH98 CH63 CH65 CH72 CH67 CH68
1000p 1000p 0.1/16 1000p 1000p 0.1/16 1000p 1000p 0.1/16 1000p 1000p
1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005
(IOGND) (IOGND) (IOGND) (IOGND)
GND1 GND1 GND1 GND1
(IOGND) (IOGND) (IOGND)
GND1 GND1 GND1
IC SiI9125
RH48 1 2 33
RH49 1 2 33
Q11
CVCC18-143
CGND-142
Q12
Q13
Q14
Q15
IOVCC33-137
IOGND-136
Q16
IH01
Q17
SiI9125
Q18
Q19
G5 G4 G3 G2 G1 CVCC18-131
CGND-130
Q20
G6 G19 G18 G17 G16
Q21
Q22
G7 G20 G25 G24 G15
Q23
G8 G21 G22 G23 G14 IOVCC33-125
IOGND-124
Q24
G9 G10 G11 G12 G13
Q25
Q26
Q27
GND1
CVCC18-119
CGND-118
Q28
Q29
Q30
Q31
IOVCC33-113
IOGND-112
Q32
Q33
Q34
CGND
GND1
RH23 IOGND
GND1
DGND 33
1 2
GND1 GND1
1 2
3 4 RH24
5 6 33
7 8 2010
RH25 1 2 33
RH26 1 2 33
RH16
1.0M
1 2
RH17
100
XH01
CH15 CH16
FCX-02
9.0p-C 9.0p-C
27.0MHz
1005 1005
GND1 GND1
CH18
0.047/16
1005
7
D8MW
HDMIRxEVNODD 1 2
HDEVNODD
009:7B
RH32
HDMIRxVSYNC 3 4
HDMI_V
009:7B
5 6 33
HDMI_H 009:7B
7 8 2010
HDMI_DE
009:7B
RH33
HDMIRxODCK 33
1 2
HDMI_CLK
009:7B
GND
Œ
HDMIRxQ0 1 2
HDMIRxQ1 3 4 RH34
HDMIRxQ2 5 6 47k 
HDMIRxQ3 7 8 2010
GND1
HDMIRxQ4 1 16
HD_Cb[0]
009:7B
HDMIRxQ5 2 15
HD_Cb[1]
009:7B
HDMIRxQ6 3 14
HD_Cb[2]
009:7B
HDMIRxQ7 4 13 RH35
HD_Cb[3]
009:7B
HDMIRxQ8 5 12 33
HD_Cb[4]
009:7B
HDMIRxQ9 6 11 8REN
HD_Cb[5] 009:7B
HDMIRxQ10 7 10
HD_Cb[6]
009:7B
HDMIRxQ11 8 9
HD_Cb[7]
009:7B
(2007.06.19)
HDMIRxQ12 1 2
HDMIRxQ13 3 4 RH36
Ž
HDMIRxQ14 5 6 47k
HDMIRxQ15 7 8 2010
GND1
HDMIRxQ16 1 16
HD_Y[0]
009:7B
HDMIRxQ17 2 15
HD_Y[1] 009:7B
HDMIRxQ18 3 14
HD_Y[2]
009:7B
HDMIRxQ19 4 13 RH37
HD_Y[3]
009:7B
HDMIRxQ20 5 12 33
HD_Y[4] 009:7B
8REN
HDMIRxQ21 6 11
HD_Y[5]
009:7B
HDMIRxQ22 7 10
HD_Y[6]
009:7B
HDMIRxQ23 8 9
HD_Y[7] 009:7B
(2007.06.19)
HDMIRxQ24 1 2
HDMIRxQ25 3 4 RH38

HDMIRxQ26 5 6 47k
HDMIRxQ27 7 8 2010
GND1
HDMIRxQ28 1 16
HD_Cr[0] 009:7B
HDMIRxQ29 2 15
HD_Cr[1]
009:7B
HDMIRxQ30 3 14
HD_Cr[2]
009:7B
HDMIRxQ31 4 13 RH39
HD_Cr[3] 009:7B
HDMIRxQ32 5 12 33
HD_Cr[4]
009:7A
HDMIRxQ33 6 11 8REN
HD_Cr[5]
009:7A
HDMIRxQ34 7 10
HD_Cr[6]
009:7A
HDMIRxQ35 8 9
HD_Cr[7]
009:7A
(2007.06.19)
D+3.3V
RH27 RH30 RH29 RH28
10k 10k 10k 4.7k
H_SCDT
012:1A
HDRxMCK
020:2C
HDRxBCK
005:1E
HDRxLRCK 005:1E
HDRxDAT
005:1E
1
TP042
S/P DIF Out
008:5E
HDRxMUTE
020:4E
RH31 Local I2C Address Select
4.7k
Low: 0x60/0x68
High: 0x62/0x6A
GND1
MAIN BOARD SHEET: 011
HDMI Rx
A
B
C
D
E
F