Block (1/2) Diagram - Panasonic TC-L42U22 Service Manual

9.2.

Block (1/2) Diagram

P POWER SUPPLY
D001
RECTIFIER
L005
D016
Q420
Q001
RESONANCE
CONTROL
Q401
RESONANCE
Q410,Q412
POWER
IC801
CONTROL
PFC
VCC
Q701
D004 Q702
D002
AC D003
DET
D005
IC101
POWER
CONTROL
D106
Q301
PFC ON
PC101
PHOTO COUPLER
PC302
PHOTO COUPLER
PC301
Q302
PHOTO COUPLER
STB ON
LINE L001
FILTER L002
F001
T4AL AC250V
LIVE NEUTRAL
HOT HOT
P1 1 4
AC CORD
V POWER LED
REMOTE RECEIVER
C.A.T.S. SENSOR
D2500
SN2501
V10
POWER LED
C.A.T.S.
SENSOR
RM2501
REMOTE
RECEIVER
K1
CONTROL PANEL ASSY
HOT HOT COLD COLD
C420 T401
P2
D501
17V
D451,452
24V
IC451
24V
ERROR DET
IC261
PC401
+5V
PHOTO COUPLER
+5V
PC701
PHOTO COUPLER IC251
11
RELAY
MAIN ON
Q364
RL002
RELAY
RUSH ON Q351
Q362
RL001
Q363
10
Q161
T101
D151
15V 15V
14
IC151
Q171
13
12V 12V
12
ERROR DET
DET
OVP
P3
Q361
P4
MAIN ON
14
12
13
COLD COLD
A DIGITAL SIGNAL PROCESSOR
A10
R_LED_ON POWER LED(R)
7 7
C.A.T.S. C.A.T.S.
4 4
REMOTE IN
REMOTE IN SUB5V
3 3
PA4803
SUB+5V
1 1
STB+3.3V
5 5
SOUND15V
F15V
A04
KEYSCAN1 KEYSCAN1
2
KEYSCAN3 KEYSCAN3
4
A03
SOUND15V
7 9
STB5V
F15V
4 12
Q5602
STB5V
F15V
5 11
VOLTAGE
DROP
ERROR DET
STB5V D5600
1 15
TUNER_6V
2 14
Q4770
RELAY
5
SUB_ON TV_SUB_ON
9
7
IC5608
SUB5V
F15V
+5V
PANEL_
PANEL_VCC_ON VCC_ON
IC5610
6 SUB1.8V
Q2760 +1.8V
Q2761
IC5606
INV SUB1.2V
SUB1.2V
INV_PWM INV_PWM +1.2V
2
INV_ON
INV_ON
3
INV_SOS INV_SOS
4
Q5616
D5629
Q5613 Q5612
Q5615
F15V DET ON/OFF
1
4
BACK LIGHT
INVERTER
CIRCUIT
PANEL
1
CONTROL
PANEL
4
INV_SOS
INV_ON
INV_PWM
LCD PANEL
32
STB3.3V
STB3.3V
STB1.2V
IC4700
SUB5V
ANALOG-ASIC
IC5601
STB5V D5604 D5605
STB
RESET
+3.3V
STB
+1.2V
D5603
MCU_RESET
SUB1.2V DET
AG_SOS
SUB1.8V DET
SUB5V DET
SOS
SOS
(LED:3TIMES) (LED:3TIMES)
Q4702 Q4704
SUB5V
IC5605 SUB3.3V
3.3V
SUB1.8V
PA4202
Q5412 PANEL12V
A21 +12V
1
VCC12V
4
LVDS DATA LVDS DATA
13
(RxB_0-3) (RxB_0-3)
24
LVDS DATA LVDS DATA
29
(RxA_0-3) (RxA_0-3)
40
1
2
3
4
MCU_RESET
KEYSCAN3
Q4703
5
6
7
8
9
D2753
INV LED
PANEL_
LED_ON
Q5495
PANEL_VCC_ON
LVDS DATA
10