DOWNLOAD Panasonic TH-42LF25ER / TH-47LF25ER Service Manual ↓ Size: 8.61 MB | Pages: 54 in PDF or view online for FREE

Model
TH-42LF25ER TH-47LF25ER
Pages
54
Size
8.61 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / FULL HD LCD DISPLAY
File
th-42lf25er-th-47lf25er.pdf
Date
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Panasonic TH-42LF25ER / TH-47LF25ER Service Manual ▷ View online

25
TH-42LF25ER / TH-47LF25ER
When replacing the cabinet back, secure the lead wires
for the speaker and main board to the cabinet back with
replacement tape.
26
TH-42LF25ER / TH-47LF25ER
TH-42LF25ER / TH-47LF25ER
27
9 Block Diagram
9.1.
Block (1 of 2) Diagram
5VSTB
12VA
ON/OFF
24VP
IC1601
1
LUVP
2
3
CS/FB
4
GND
5
OUT
6
VCC
7
8
VSTR
D651
D652
D650
IC633
1
CSS
2
DELA
Y
3
CF
4
RFMIN
5
STBY
6
ISEN
7
LINE
8
DIS
9
PFC_ST
OP
10
GND
11
LV
G
12
VCC
13
N.C.
14
OUT
15
HVG
16
VBOOT
T6011
COLD
HOT
42  :T602
47  :T600
7
1
12
8
3
6
11
2
4
IC602
L605
12
1
5
6
7
8
10
11
9
24VP
24VP
I_PWN
KIV1
1
1
2
3
4
5
6
7
8
9
10
11
12
12
SEL
SEL
K6C
1
1
2
3
4
5
6
7
8
9
10
11
11
KIV2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
BLON
BLON
I_PWN
12VA
E_PWN
E_PWN
MAIN-ON/OFF
MAIN-ON/OFF
F_5V
F_5V
F_5V
12VA
12VH
5VSTB
24VP
24VH
24VP
12VA
24VP
24VH
24VP
12VH
SWICH1
T652
2
1
5
4
7
8
9
10
3
42  :PC603
47  :D6809
SWICH
IC603
IC605
1
S/OCP
2
BR
3
GND
4
FB/OLP
5
VCC
7
D/ST
8
D/ST
Q604
D603
1
2
3
4
K601
1
4
RL601
SWICH1
SWICH
K6B
1
1
2
3
4
5
6
7
8
9
10
11
12
13
13
K16B
1
1
1
7
7
1
2
3
4
5
6
7
8
9
10
11
12
13
13
PWR-30V
DC416V
520V
400V
400/3A
MAX:AC264V/2.7A
400/3A
MAX:AC264V/2.7A
MAX:AC264V/2.7A
400V
200V
412V
NOISE
FILTER
Q613
Q612
Q614
Q615
Q6800
Q685
Q684
Q690~692
42  :Q6801
47  :Q600,Q601,Q605,Q606
Q1606
Q1601
Q602
Q604
1
1
2
3
4
5
6
7
8
9
10
11
11
BLON
L6603
P_FAIL1
P_FAIL1
K16C
P_FAIL1
P_FAIL1
DCR_VBR
BLON
DCR_VBR
12V_PWR
5VSTB
24V
L6604
5VSTB
L6605
12V/24V_EN
Q6620
Q6621
K6A
1
2
3
4
5
6
7
SWICH1
MAIN_EN
SWICH
SWICH2
K16A
1
2
3
4
5
6
7
MCU_5V
12VPAN_EN
12VPAN_EN
PANEL_12V
IC6600
2
3
7
12V
IC7504
1
2
3
4
1.2VSTB
3.3VSTB
IC7501
1
2
3
4
1.2V_AUD
5VSTB
3.3V_I/O
3.3V_AUD
3.3V_LVDS
Q7501
IC7505
1
2
3
4
3.3V_LBADC
3.3V_ADC
3.3V_HDMI
Q7502
1
2
3
4
5
6
7
8
3.3V
5VD_PWR
IC7503
1
2
3
4
1.2V
1.8V_DDR
IC5503
1
2
3
4
5
6
7
8
9
IC7506
1
2
3
4
0.9_DDR_VREF
1.2V_DPRX
1.8V_DDR
1.2V_ADC
3.3V_DDR
1.2V_HDMI
1.2V
1.2V_CORE
3.3V
3.3V_SW
IC6612
1
2
3
4
5
6
7
8
9
PWM1
DCR_VBR
DCR_IN
OPC_EN
OPC_EN
KLVP
PANEL_12V
3.3V_I/O
3.3V_I/O
PEL-TEST
PEL-TEST
LCD PANEL
Q4001
MAIN CHIP
IC7200
(NEXT PAGE)
SWICH1
MAIN_EN
SWICH
SWICH2
MAIN BOARD
POWER BOARD
(42  ONLY)
Q607
TH-42LF25ER / TH-47LF25ER
28
9.2.
Block (2 of 2) Diagram
Q615
Q1501
Q1502
Q1503
SW1902
SW1903
SW1904
SW1905
SW1906
K19G
SW1901
INPUT
MENU
POS-
POS+
ENTER
 MCU5V
D1951
IC1952
IOUT
VCC
IC1951
IR
K19I
K39G
K39H
RED
IR
GND
GREEN
BACKLIGHT
RED
GREEN
3.3STB
5V
AV1_S
AV1_C
AV1_Y
AV3_CVBS+
PC_L
PC_R
DVI_IN_L
DVI_IN_R
TX
AV_IN_L
AV1_Y
PC_R
AV_IN_R
AV1_S
DVI_IN_L
PC_L
K10E
K10D
AV
L / R
IN
PC
L / R
IN
DVI
L / R
IN
Y / C
IN
RS232C
IN
AV3
CVBS
IN
RX
AV3_CVBS+
DVI_IN_R
AV1_C
AV_IN_L
AV_IN_R
DVI-D
Q309
HDMI 1
IN
HDMI 2
IN
RX
TX
K72E
K72D
AV2_PR/B
AV2_Y/G
AV2
IN
AV2_PB/R
VGA_B/PR
VGA_G/Y
V_SINC
H_SINC
VGA_R/PB
HDMI1_CEC
+5V
+5V
HDMI1_IIC
DVI_IIC
HDMI1_DA
TA_CLOCK
HDMI1_DATA_CLOCK
HDMI1_DA
TA_CLOCK
HDMI1_DA
TA_CLOCK
TMDS_DA
TA_CLOCK
TMDS_DATA_CLOCK
PC IN
EEPROM
VGA_IIC
PC_DET
HDMI2_CEC
+5V
HDMI2_IIC
HDMI2_DA
TA_CLOCK
HDMI2_DA
TA_CLOCK
IC1501
DDR SDRAM
IC5500
IC7200
Main Chip
Q2001
Q2003
SYNC_DET
MUTE
12V_PWR
IC001
MUTE
STBY
VIN1+
PLC
VIN2+
25
OUT2+
26
OUT2+
30
OUT2-
31
OUT2-
36
OUT1-
37
OUT1-
41
OUT1+
42
OUT1+
43
PVD1
44
PVD1
45
OUT_R
KSPL
KSPR
SP-L
SP-R
OUT_L
SPEAK_SW_R
SWH-SPEK
Q1902
Q1901
IC8134
IC2009
IC2010
AMP_STBY
12V
L+
L-
R+
R-
AV1_S
AV3_CVBS+
AV_IN_L
AV_IN_R
RX
TX
PC_R
PC_L
AV1_C
AV1_Y
DVI_IN_L
DVI_IN_R
AV1_S
AV3_CVBS+
AV_IN_L
AV_IN_R
PC_R
PC_L
AV1_C
AV1_Y
DVI_IN_L
DVI_IN_R
HD5V3
HD5V2
HD5V1
HOT_PLUG
Q311
HDMI2_HPD
Q310
HDMI1_HPD
Q701
HDMI_HPD
HDMI_HPD
DVI_SCL
HD5V1
HD5V3
HDMI1_SDA
HDMI1_SCL
IC750
IIC
IIC
HD5V2
HOT_PLUG
HDMI2_HPD
HDMI2_SDA
HDMI2_SCL
DVI_SDA
HDMI_SDA
HDMI1_HPD
SCL
SDA
HDMI_SCL
POW_SINK
HDMI_SDA
HDMI_SCL
POW_SINK
3.3VSTB
IC804
REAL TIME CLOCK
SDA
CLOCKOUT
CLOCKOUT
RTC
RT
C
SCL
SDA
SCL
3.3VSTB
MCU_5V
IC805
MCU_5V
MAIN_EN
IR
KEY_POWER
RTC
5VD_PWR
SWICH
SWICH
SWICH1
SWICH2
IC7201
10
11
12
13
14
15
16
17
18
19
20
SYNC_DET
PC_DET
LED_GREEN
LED_RED
UART-SW
UAR
T-SW
IC2005
IC2006
RXD0
RXD1
RXD1
TXD1
TXD1
5VSTB
TXD0
3.3VSTB
RXD0
MCU_5V
MCU_5V
IC2007
IC2008
Q7206
K19F
 RED
 5VD
GREEN
3.3STB
IR
 KEY0
 KEY
-POWER
SWICH2(F-5V)
SWICH1
BACKLIGHT
3.3VSTB
3.3VSTB
3.3VSTB
IC2012
IC5501
DRXD
DTXD
TX
RX
IC2003
VGA_B/PR
VGA_G/Y
V_SINC
H_SINC
VGA_R/PB
VGA_IIC
LIGHT_DET
KEY 0
AV2_PR/B
AV2_Y/G
AV2_PB/R
OUT_R
OUT_L
SWH-SPEK
MUTE
AMP_STBY
LIGHT_DET
TXD0
PWM1
OPC_EN
PEL-TEST
TO LCD PANEL 
FROM CONNECTOR BOARD(KLVP)
MSTR1_SCL
MSTR1_SDA
SPI_CEN
SPI_DO
SPI_DI
FAIL
P_FAIL 1
SPI_CLK
IC8001
IC8000
EEPROM
SPI Serial
Q7207
Q7208
AUDIO AMP.
TO POWER BOARD
FROM CONNECTOR BORD K16A
KEY SW BOARD
MAIN BOARD
RC+LED BOARD
JACK BOARD
SUB MCU
RS-232C SW
HDMI/DVI-D SW
Cross
Point
Switch
Triple 
10-bit
ADC 1
Triple 
10-bit
ADC 2
2nd Channel 
Processing + 
DCDi EdgeTM
3D Video 
Decoder
Output
Formatter
Display
Port Tx
ADC
IR I/F
I2C BUS
SPI Interface
General
Purpose
I \ O
VBI Data 
Processor
Memory
Controller
OSD
Controller
Audio
Mux
Audio
DSP
Audio
DAC
LVDS Tx
Digital
Input
MUX
I2S SPDIF Tx
Embedded
Micro-
processor
DCDi , Motion Adaptive 
De-interlacing, Scaling,
Shaping Filter, 
Enhancer, ACC II, 
ACM-3D, 3x3 Matrix, 
PicBlend, CLUTs, 
OSD Blend
3x3 Matrix
DVI \ 
HDMI
Display
Port Rx
ADC
inputs,
I2S\
SPDIF Rx
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