Block (1/2) Diagram - Panasonic TC-L37U22 Service Manual

9.2.

Block (1/2) Diagram

P POWER SUPPLY
D7030
RECTIFIER
T7201
D7204
Q7301
CONTROL
RESONANCE
Q7251,52
OVP
D7253
IC7301
IC7201
POWER
PFC CONTROL
VCC
VCC
Q7701
CF7101
D7404
D7407
RECTIFIER
D7403
IC7401
STB
CONTROL
PC7401
PHOTO COUPLER
LF7001 CLK2
LINE VCC
LF7002
FILTER
LF7003 CLK1
F7001
OUT1
T5AL AC250V
Q7803,04
LIVE NEUTRAL
H/V DRV1 H/V GEN
P1 1 4
OUT2
Q7801,02
AC CORD
H/V DRV2 H/V GEN
IC7801
INV
VOLTAGE
SUPPLY/FET
DRIVER
V POWER LED
REMOTE RECEIVER
C.A.T.S. SENSOR
D2500
SN2501
V10
POWER LED
C.A.T.S.
R_LED_ON
SENSOR
7
C.A.T.S.
4
RM2501
REMOTE IN
REMOTE 3
SUB+5V
RECEIVER
1
STB+3.3V
5
K1
KEYSCAN1
CONTROL PANEL ASSY
KEYSCAN3
HOT HOT COLD COLD
T7301
P2
D7503
17V
SOUND15V
D7552 DTV12V 7
DTV12V
4
DTV12V
IC7501
5
12V
ERROR DET
PC7301
STB5V STB5V
1
PHOTO COUPLER
TUNER_6V
TUNER_6V
2
PC7701
PHOTO COUPLER
Q7754
RL7101
RELAY
11
Q7702
ON/OFF
SUB_ON
9
RL7102
Q7032
RELAY
ON/OFF
RL7103
12V
T7401
TUNER_6V
D7603
IC7601
IC7851
STB
ERROR DET
INVERTER
POWER
CONTROL
INV_PWM
BURST 14
VCC INV_ON
ENA 13
(LED:1TIMES) (LED:1TIMES) INV_SOS
ALARM 12
T7803
OVP
PRO_L
DRV1
PRO_H
DRV2
FB
CT
P5
T7801
1
D7860
D7862 2
P6
D7861
D7830
D7855 1
2
D7863
D7865
D7864
D7831
D7856
HOT HOT COLD COLD
A DIGITAL SIGNAL PROCESSOR
A10
POWER LED(R)
7
C.A.T.S.
4
REMOTE IN
SUB5V
3
1
5
SOUND15V
A04
KEYSCAN1
2
KEYSCAN3
4
A03
DTV12V
SUB5V
STB5V
9
STB5V
12
Q5602
STB5V
11
VOLTAGE
DROP
ERROR DET
D5600
15
D5673 D5672
14
D5674
Q5614
Q4770
5
TV_SUB_ON
7
IC5608
SUB5V
DTV12V SUB5V
+5V
IC5605 SUB3.3V
3.3V
IC5610 SUB1.8V
SUB1.8V
+1.8V
IC5606
SUB1.2V
SUB1.2V
INV_PWM
+1.2V
2
INV_ON
3
INV_SOS
4
Q2760 Q5616
D5629
Q2761 PANEL_
VCC_ON
Q5613 Q5612
INV Q5615
F15V DET ON/OFF
AVDD13.7V
BACK LIGHT
DVDD2.5V
INVERTER
CIRCUIT
PANEL
VOFF2-6V
CONTROL
PANEL
VCON31V
IIC1
VREF_1-12
LVDS DATA
LCD PANEL
28
STB3.3V
STB3.3V
STB1.2V
IC4700
ANALOG-ASIC
IC5601
D5604 D5605
STB
RESET
+3.3V
MCU_RESET
STB
+1.2V
D5603
MCU_RESET KEYSCAN3
SUB1.2V DET
AG_SOS
SUB1.8V DET
SUB5V DET
SOS
SOS
Q4704 Q4703
Q4702
TCON12V
D2753
INV LED
PA4800
PANEL_
LED_ON
OVER IC4800
VOLTAGE Q5495
D4831 D4830 AVDD13.7V
+13.7V
D4833 PANEL_VCC_ON
D4832 DVDD2.5V
+2.5V
VDD25_EN
PANEL POWER SOS
IIC (LED:3TIMES) (LED:3TIMES)
A22 TCON
AVDD13.7V SUB3.3V
72
76
11 Q4804,05
-6V GEN.
13
Q4803
5
LEVEL SHIFT
6
IC4802
7
D/A
HOT START(DAC_ENB)
IIC1
61 VREF_1-12 IIC
TCON
71
18
LVDS DATA LVDS DATA
58
1
2
3
4
5
6
7
8
9