Panasonic LCD-201803 Quick start guide

Panasonic Corporation 2018
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c
Model No. LCD-201803
Order No. ITD1803902GE
1
Circuit Operation and Troubleshoot
2018 - LCD TV
Ver. 1.0

Revision History
Version Issued/Revised
date
Revised content
Ver. 1.0 29th. Mar. 2018 First version
2

3
INDEXINDEX
1.Board Layout
2.Video Signal Processing
2-1. Picture signal flow
2-2. Troubleshoot of Picture Problem
3.Power Supply
3-1. Power Board Structure
3-2. Stand by / Start up Operation
3-3. SOS Protection Circuit and Troubleshoot of Power Problem
4.Rear Cover Disassemble and Assemble

1. Board Layout
4

Board Layout -1
5
The presence of GK board is depend on the model and region.
A
K
P
A
K
LDP
G
K
49/43/32/24FS***/F4**, 40FS***/F4** (Europe and Oceania)
40FS***/F4** (Latin and Asia)
55/49/43/40FX6**/FX7**
A
K
P
50FS***
65FX6**, 75FX7**
LDP
G
K

Board Name Function
A-Board Main Board
P-Board Power supply, Backlight Drive, Power key, Control key
K-Board Remote Receiver, Power LED
A02
A12
A10
P3
PA
AC input
K10
Speaker Speaker
K
A15
6
Board Layout -2
( 32F400 )
( A+P )
(T-CON)
Not repairable,
One of the panel module

A10
A02
A12
P
A
AC input
K10
WiFi Module
Speaker Speaker
K
(T-CON)
Not repairable,
One of the panel module
A16
P2
7
Board Layout -3
( 55FX700 )
( A+P )
P3
GK Bluetooth
Module
Board Name Function
A-Board Main Board
P-Board Power supply, Backlight Drive
Board Name Function
K-Board Remote Receiver, Power LED
GK-Board Power key, Control key
JK8705

Board Name Function
A-Board Main Board
P-Board Power supply, Backlight Drive, Power key, Control key
K-Board Remote Receiver, LED
A02
A10
P2
A
DC input,
Connect the
AC adapter
K10
Speaker Speaker
K
A11
8
Board Layout -4
( 40F400 )
( A+LDP )
GK LDP1
(T-CON)
Not repairable,
One of the panel module
LDP

A02
A16
A12
A10
P2
P
A
AC input
K10
WiFi Module
Speaker Speaker
K
(T-CON)
Not repairable,
One of the panel module
LDP5
9
Board Layout -5
LDP
LDP3 LDP2
Board Name Function
A-Board Main Board
P-Board Power supply for Signal Process
Board Name Function
LDP-Board Power supply for Backlight Drive
K-Board Remote Receiver, Power LED
( 75FX750 )
( A+P+LDP )
LDP4
Bluetooth
Module
Not repairable,
One of the panel module
A15
JK8705

F4** FS5** FX6**
(4K)
FX7**
(4K)
24inch A+P --- ---
32inch A+P A+P --- ---
40inch A+P
(Oceania)
A+P
(Europe/Oceania)
A+P A+P
A+LDP
+DC adaptor
(Asia/Latin)
A+LDP
+DC adaptor
(Asia/Latin)
43inch A+P A+P A+P
49inch A+P A+P A+P
50inch --- A+P+LDP --- ---
55inch --- --- A+P A+P
65inch --- --- A+P+LDP
75inch --- --- --- A+P+LDP
10
Except K, GK boards
Board Structure