Panasonic TX-LR42U3 Service Manual ▷ View online
TX-LR42U3
25
9 Block Diagram
9.1.
Main Block Diagram
(LED:4
TIMES)
(LED:9
TIMES)
(LED:7
TIMES)
(LED:1TIME)
(LED:3
TIMES)
DCDC
DCDC
VIDEO
COMP
2
C.A.T.S. SENSOR
EEPROM
P15V SENSE
LCD DRIVER
SUB3.3V
CH
INPUT/OK
DVDD2.5V
LD
OPERATION KEYS
LVDS-TX
STB3.3V
R/G/B/H/V
A
REMOTE RECEIVER
LINE FILTER
CPU BUS
SLOT
KEY3
SUB5V
VOFF2-6V
KEY1
TC1
/V
LD2
SUB5V
TC2
STB1.2V
TC3
SUB1.2V
STB1.2V
(SIDE)
SUB_ON
SUB3.3V
POWER LED
PWM
ANALOG-ASIC
AV SW
DCDC
ARC OFF
+6V
SIF_OUT
REMOTE IN
DCDC
IFD_OUT
RECEIVER
P15V
SUB5V
BL_SOS
P15V
SD CARD DATA
-/
LD4
SUB3.3V SENSE
LED DRIVER
SUB3.3V
STB3.3V
RELAY
STB5V
MAIN
USB
L/R
SUB1.8V
PWM
PROCESS VOLTAGE CONVERTER
ARC BUFFER SW
Y/PB/PR
STB5V
P
V
NEUTRAL
HDMI I/F
USB I/F
V/
STB3.3V
SUB9V
C.A.T.S. SENSOR
SUB_ON
VON31V
5.8VS
NAND FLASH
VIDEO_OUT
STB5V
CH
SUB1.5V
KEY3
A10
DCDC
HDMI2
HDMI1
PANEL
SUB1.5V
REMOTE RECEIVER
BL_ON
5.8VS
USB DATA
PFC CIRCUIT
24V
POWER
EEPROM
CPU BUS I/F
POWER LED
BL_SOS
SUB1.2V
DMD
HDMI3.3V
KEY1
MENU
KEY3
T-CON DCDC
RECTIFIER
LIVE
P15V
F16V
KA
DDR3
KEY1
VOL
TUNER
C.A.T.S. SENSOR
+/
SUB3.3V
LCD PANEL
OUT
P4
LED DRIVER
PWM
STB5.8V
P2
BL_SOS
RELAY SUBSTRATE
VOL
POWER SUPPLY
POWER LED(R)
LVDS DATA
DCDC
SD CARD
OVP DET
A09
DCDC
P15V
TC
BL_ON
SUB3.3V
P15V
AC CORD
STB5V
STB3.3V
PWM CONTROL
BL_ON
LED BACK LIGHT
STB5.8V
SUB_ON
SD CARD DATA
P1
DIGITAL
SUB1.8V
GAMMA DAC
PC
AVDD12.6V
A14
RELAY
KA10
SPDIF
P15V
STB5.8V
HDMI3.3V
AUDIO
SUB3.3V
SOUND SOS
sLD2
AUDIO OUT
AMP
L
R
AUDIO
SPEAKER(R)
SPEAKER(L)
A12
PWM
PWM
SOUND SOS
SOS_
SENCE
TCON SOS
SOS_SENCE
(LED:4 TIMES)
(LED:9 TIMES)
(LED:7 TIMES)
(LED:1 TIME)
(LED:3 TIMES)
ARC
TX-LR42U3
26
10 Wiring Connection Diagram
10.1. Wire Dressing
1. Stick felt at LVDS wire and wire.
2. Wiring No.1 ~ No.4.
2. Wiring No.1 ~ No.4.
Wire
Clamper
1
2
3
4
5
6
7
No.1 A10 - V10
No.2 A02 - K01
No.3 A12 - SP (R)
No.4 A12 - SP (L)
TX-LR42U3
27
11 Schematic Diagram
11.1. Schematic Diagram Notes
TX-LR42U3
28
11.2. A Board
11.2.1. A Board - Sheet : 002 (1 / 2)
<1A>
<2A>
<3A>
<4A>
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