Panasonic TX-22LX2 Service Manual page 16

TUNER
B1 TU101
V SUPPLY
9 7
7 9 BTL
5 13 BV
B-BOARD
C807
IC804
NR 5V
MAIN 3.3V
1
O VIN 2 1
VOUT VIN
ON/OFF
5
MAIN 5V
IC4020
AVR 1.8V
5
VIN
VO 4
1
CONT
IC4021
PLL 3.3V
6
5
VIN
VO 4
7
1
CONT
12
13
2
2
IC4030
2
2 MAIN 2.5V
2
5 VIN
VO 4
2
1
CONT
2
16
17
21
22
IC4012
AD 2.5V
1
5 VIN
VO
4
1
CONT
14
IC4011
18
PLL 2.5V
18
5 VIN
VO 4
1
CONT
24 Q4094,Q4095 Q4089,Q4088
33
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V1
STAND BY
4 STBY 3.3V
D205
Q201
5 LED R
V-BOARD
IC801
MAIN 12V
2 1
SW OUT VIN
ON/OFF
5
IC805
MAIN 1.8V
2 1
VOUT VIN
ON/OFF
5
MAIN 3.3V
IC4017 IC4022
GC3FM 64Mbit SDRAM
1
VDDE 1
VCC
12 VDDE
3 VCCQ
23
VDDE 9
VCCQ
32
VDDE 15
VCC
73
VDDE
29 VCC
90
VDDE 35 VCCQ
105 VDDE VCCQ
41
113 VDDE 43
VCC
134
VDDE 49
VCCQ
55
VCCQ
75
10
VDDI VCCQ
81
21 VDDI VCCQ
30
VDDI
66
AVDDA1 IC4023
71 AVDDA2
64Mbit SDRAM
75
VDDI
88 VDDI
1 VCC
114
VDDI
3
VCCQ
123
VDDI
9 VCCQ
135 VDDI
15
VCC
29 VCC
38 AVDAD12
VCCQ
35
40
AVDAD11
VCCQ
41
45 AVDAD22
43 VCC
47 AVDAD21
49
VCCQ
52 AVDAD32
55
VCCQ
54 AVDAD31
75
VCCQ
58
VAVDCLP
81
VCCQ
79
AVDPL1
84
AVDPL2
IC4025
LVDS
1
RS
9
VCC
26 VCC
34
PLL_VCC
44 VDS_VCC
A5
4
5
IC802
MAIN 9V
2 SW OUT VIN 1
ON/OFF
5
STB3.3V
IC1114
64Mbit SDRAM
IC1107
EEPROM
8
VCC
IC1108
RESET
2
VDD
IC1115
16Mbit FLASH
14 VDD33-1
32
VDD33-2
42 VDD33-3
53
VDD33-4
61
VDD33-5
69
VDD33-6
85
VDD33-7
IC1113
106
VDD33-8
21 VDD25-1
87
VDD25-2
MAIN POW
111 91
VDDA-1 MAIN ON
INV_POW
116 INV ON 81
VDDA-2
LED
119 80
VDDA-3 LED R
OVP
123 VDDD-4 SOS 93
IC1104
MCU
IC9001
STB 2.5V
2 VIN
VO
3
1
CONT
IC1111
INVERTER
5 VCC
A3
2 STB_5V
3
REG_5V
4 REG_5V
5 REG_5V
6
REG_5V
13 UNREG_32V
MAIN POW
10
POWER ON
20
INVERTER_15V
LED
21 INVERTER_15V
22
INVERTER_15V
23 INVERTER_15V
24
INVERTER_15V
A10
1 INV_VCC
2 INV_VCC
3 INV_VCC
4
INV_VCC
5 INV_VCC
6 INV_VCC
7 INV_VCC
INV ON
8 INV_ON
PANEL HS
16
PANEL HS
DUTY PWM
17 DUTY PWM
AI PUM
18 AI PWM
1 VDD
3 VDDQ
9 VDDQ
14
VDD
27 VDD
43 VDDQ
49 VDDQ
37 VCC
47
SYTE
14 VCC
OR GATE
TX-22LX2
Power Block Diagram
TX-22LX2
POWER
SUPPLY
UNIT
BACK LIGHT
INVERTER
(LCD PANEL)