A-Board; Power Block Diagram - Panasonic TC-20LB30 Service Manual

10.2. Power Block Diagram

TO
A9
POWER UNIT
1
UNREG 32V
POWER ON PULSE MAIN SW
6
7
STB 5V
8
KEYSCAN
POWER ON 9
10
REG 5V
REG 5V 11
INVERTER 14V 16
17
INVERTER 14V
18
INVERTER 14V
INVERTER 14V 19
A12
STBY +B
1
TC-20LB30
Power Block Diagram
IC2001
AUDIO AMP
IC901
1 VCC
V_IN V_OUT
SUB 11V
1 2
IC903
SUB 9V
SUB 11V
3 VIN
IC902
V_IN V_OUT
MAIN 3.3V SUB 11V
1 3 6
MAIN 3.3V
IC906
V_IN V_OUT
MAIN 2.5V
1 3
MAIN 2.5V
IC904
V_IN
V_OUT
MAIN 1.8V
1 3
MAIN 1.8V
IC1003
STB 3.3V
RESET
5 VIN VOUT 1
4
IC907
MAIN 5.0V
ON/OFF
V_IN V_OUT
1 2 3 6
MAIN 5V
2
VOUT
SUB 9V
MAIN 9V
MAIN 3.3V
IC4017
IC4014
64Mbit SDRAM
GLP
1 VCC
VDDE
4 VDDI 18
3 VCCQ
VDDE
20 VDDI 36
9 VCCQ
34 VDDE 78
VDDI
15 VCC
VDDE
45 VDDI 88
VCC
29
56 VDDE
VDDI 104
VCCQ
35
67 VDDE
VDDI 116
VCCQ
41
86 VDDE
VDDI 140
VCC
43
VDDE
102 VDDI 116
49
VCCQ
118 VDDE
VDDI 140
55 VCCQ
VDDE
129 VDDI 151
75 VCCQ
VDDE
138 VDDI 175
81
VCCQ
149 VDDE 207
VDDI
VDDE
160 VDDI 215
VDDE
173 VDDI 222
184 VDDE 233
IC2320 VDDI
VDDE
197 VDDI 243
SOUND CONTROL
VDDE
209
AVDPL3 251
220 VDDE
VCC
26
VDDE
231
VDDE
245 VDDI 29
247 VDDE 47
VDDI
AVDPL2
123
59 AVDPL1
Q4035
IC1002
EEPROM
VCC
8
IC1001
MCU
69 SOS
TEST Q4036
7 PANEL ON 47
30 IREF
72
REMOTE
31 COMP
LED_G 55
AVDD
32
77 VDD 56
LED_R
54 KEY
58 BS_ON
5
RESET
52 INV_ON
IC1011
SWITCHING
IC3001
8 VCC
AV SW
57 VCC
IC1008
TEMPERATURE
IC4003
SENSOR
OP AMP
7
8
VCC
8
MAIN 5V
IC4012
IC4009
GC3FM
AD 2.5V
VIN
5
AVDAD12
4 38
VO
1 CONT
40 AVDAD11
45 AVDAD22
AVDAD21
47
AVDAD32
52
54 AVDAD31
58 VAVDCLP
1 VDDE
12 VDDE
VDDE
23
32 VDDE
73 VDDE
VDDE
90
105 VDDE
IC4008
113 VDDE
PLL 2.5V
VDDE
134
5
VIN
VO 4 79 AVDPL1
1 CONT
84 AVDPL2

A-BOARD

BT30V
VDDI 10
VDDI
21
VDDI 30
AVDDA1 66
AVDDA2 71
VDDI 75
VDDI 88
VDDI
114
VDDI
123
VDDI 135
26