Main Board (10 Of 15) Schematic Diagram - Panasonic TH-37LRT12U Service Manual

12.11. Main Board (10 of 15) Schematic Diagram

MAIN BOARD PCB-657-D (10/15)
!
SPV7100 POWER/GND (3.3V/ 1.8V)
F_5V
U27
AP1084-33CY/SOT-263/
FB33 FB/1206/19-ohm
4
3
IN
C263 TO263-3L
C262
100uF/16V 0.1uF
Modify the LDO for +1.8V to adjust core voltage
Modified by Monlong 2K70425
+3V3_SPV
U29
AP1084-ADJ/TO-263/
FB35 FB/1206/19-ohm
3
VIN
C272
3
100uF/16V C273
0.1uF
F_5V
U30
APE1117-33CY/SOT-223/
FB36 FB/1206/19-ohm
3
IN
C277 SOT223
C276
100uF/16V 0.1uF
GND_A
2
+3V3_ADC
U31
AT1117-18CY/SOT-223/
FB37 FB/1206/19-ohm
3
VIN
C282
100uF/16V C283
0.1uF
GND_A GND_A
GND_AU
GND_A
1
GND_AU
GND_AV
GND_TMDS
A
Power Supply
SOURCE POWER/GND (3.3V/2.5V)
F_5V
+3V3_SPV
FB/1206/19-ohm
2
OUT
C265
C264
100uF/16V 0.1uF
Audio POWER/GND (12V/8V/5V)
+1V8
J5
2
OUT
TP95
1
1
R428 C275 TP96
1
1
C274
0.1uF TP98
1
1
220 100uF/16V TP97
1
1
TP99
1
1
TP100
1
1
TP101
1
1
R429 100 TP102
1
1
TP103
1
1
TP104
1
1
TP105
1
1
TP106
1
1
+3V3_ADC
TP107
1
1
TP108
4 1
TAB 1
TP109
2 1
OUT 1
TP110
1
1
C279 BASE/16P/2.0mm
C278
100uF/16V 0.1uF
GND_A GND_A
+1V8_ADC
2
OUT
4
OUT
C284
0.1uF 100uF/16V
C285
GND_A GND_A GND_A
D=5/Pitch
R545 10K
P(16) P_ON/OFF
R546
47K
B
U24
+3V3
APE1117-33CY/SOT-223/
FB31
4
TAB
3 2
IN OUT
C252 SOT223 C254
C251 C253
100uF/16V 0.1uF 100uF/16V 0.1uF
P_12V +12V
U28
78D08A/UTC/TO263
1 1
G
+5V
2
C267
3
C266
4
0.1uF
5
220uF/35V
6
7
8
+5V_SB
9
GND_AU
10
11
12
13
14
R250 NC/0
15
16
+5V_SB
R251
10K
Q12 R331 10K
2
2SC2411
+5V F_5V
U41 AP9435GM
8
8
3 7
3 7
2 6
2 6
1 5
1 5
P(16)
C558 R544
NC/10uF 10K
2mm
R599
C547
0
NC/10nF
Add R598,C546 for prevent surge current too high, and breaking P-MOS
2
Q32
2N3904
SOT23(2SC2859)
C
49
TH-32LRT12U-A
F_5V
U25
APE1117-ADJ/SOT-223/
FB32
3 2
OUT
VIN
FB/1206/19-ohm
4
OUT
C256
C255
100uF/16V 0.1uF R496 180
R498
180
+8V_A TUNER_5V
U45
78D05A
3 1 3
S G S
C268
C269
0.1uF 100uF/16V
GND_AUGND_AU GND_AV
POWER_ON_WT P(16)
P_12V
U42 AP9435GM
8
8
3 7
3 7
2 6
2 6
1 5
1 5
C559 R566
10uF 10K
D=5/Pitch 2mm
R598 C546
10K NC/10nF
R567 10K
2
P_ON/OFF
Q33
R568 2N3904
SOT23(2SC2859)
47K
P_12V --> +12V
TH-32/37LRT12
Main Board (10 of 15) Schematic Diagram
D
* TH-37LRT12U/M/A
+2V5
VOUT 2.51V
C250
C257
0.1uF
100uF/16V
+12V
C516
+
100uF/16V
100UF/16V(SMD)
E