Hitachi UT42X902/D8MW Service Manual page 68

Schematic Diagram page 14 /28
002:7A
012:4E
012:8E
013:5C
014:2B
014:2D
020:2C
STB+5V
020:5D
002:5C
003:G4
+5.6V
004:2A
008:4A
009:1C +5.6V
011:1B
012:1A
016:1A
020:2B
RR24
0
RR23
002:1E
1.0k
1 2
012:1D
POWER2TD
016:1B
020:2C
RR28
56k
012:1D
1 2
013:5D iR_iN
3
2SA1989-T111-1
QR02
012:8D IROUT
012:8B IROFF
RR39
0
IR_SW
012:8B
002:7B
STB+3.3V
013:5B
014:2B
012:8D IRCOUT 1 CK VCC 8
IR04
D PR
2 7
2 1 TC7W74FU
47
RR41
3 Q CLR 6
RR44
D-FF
0
1 2
GND Q
4 5
RR45
CK70711R 0
1 2
GND1
• Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
TABLE OF CONTENTS
3
RR03
0
1 2
3 4
5 6
7 8
2010
+5V
REG
CR10 CR05
4.7/6.3 1.0/16
CR04
1.0/16
GND1
IR01
TK11150CSC
CR07
0.01/25
1005
GND1
RR17
10k
1 2
RR18
10k
CR02
1
10/10
RR16 IR02
2125
10k TC74AC163FT
GND1
2
1 CLR VCC 16 GND1
CK CARRYOUTPUT 1 TP064
2 15
GND1
3 A QA 14
B QB
4 13
5 C QC 12
QD
6 D 11
ENP ENT
7 10
8 GND LOAD 9
GND1
GND1
RR50
2
10k 2SC5383-T111-1F
1 2 3
QR11
RR47 1
2
10k 2SC5383-T111-1F
1 2 3
QR10
1
RR52
0
GND1
QR09 XR02
LCA10-2A1A683MT
2SA1989-T111-1
6 1608
1 3
2
RR25
2
10k 2SC5383-T111-1F
1 2 3
QR04
1
CR11
2200p
1005
GND1
2
RR38 1 2 22k 3 QR06
1 2SC5383-T111-1F
GND1
IR05 IR through
TC7SZ00FU
1 IN_B VCC 5
IN_A
2
RR46
0
1 2
3 GND OUT_Y 4
CK55471R
4
5
CR03
IR03 RR20
10/10 10k
HD74HC00T
2125
1A
1 VCC 14
GND1
1B 4B
2 13
1Y 4A
3 12
2A 4Y
4 11
CR09
2B 3B
330p-CN
5 10
1 2
RR08
2Y 3A 1.0M
1
6 9
1005
1 2
CR08
3Y 1 2
GND 330p-CN
7 8
2
RR30 1 2
68k-1%
XR01 1005
CSBFB455KJ58-R1 GND1
CSBFB_J
DR04
1 2 RR22
10k
1SS355
RR12 RR13
5.6k 5.6k
1 2 1 2 1 2
0
RR40
RR21
2 10k
RB521G-30
2 1
DR03
RR19
10k 2
1 2 3 QR03
2SC5383-T111-1F
1
RR27
47k
GND1
67
6
CR06
1.0/16
CR01
10/10
2125
GND1
GND1
2
RR32 1
3
100
2
QR01
2SA1989-T111-1
RR09
1
1.0k
GND1
1 2
3
QR08
RR01
2SA1577
2 22
3 2 1 2
1 QR05 6331
2SC5383-T111-1F RR02
22
1 2
6331
GND1
7
D8MW
QR07
2SA1577 1
1
3
RR35
2
330
IRo_term 020:2D
11
GND1
MAIN BOARD SHEET: 015
IR out
A
B
C
D
E
F