Panasonic LCD-201603 Quick start guide

Panasonic Corporation 2016
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c
Model No. LCD-201603
Order No. ITD1603906GE
Ver. 1.0
1
Circuit Operation and Troubleshoot
2016 - LCD TV

Revision History
Version Issued/Revised
date
Revised content
Ver. 1.0 25th. Mar. 2016 First version
2

3
INDEXINDEX
1.Board Layout
2.Video Signal Processing
3.Power Supply
3-1. Power Board Structure
3-2. Stand by / Start up Operation
4.SOS Protection Circuit and Troubleshooting (except 1 time blink)
5.Difference of LED Drive Circuit (Troubleshooting for 1 time blink)

1. Board Layout
4

Board Layout -1 ( DX*** series )
5
BT
A
K
P
T*-49/50/58DX***, TX-55DX***
T*-**DX900
WiFi
PB AP
WiFi
K
G
K
BT
A
K
P PB
G
K
T*-65DX***, TH/TC-55DX***
WiFi
BT
A
K
P
T*-40DX***
WiFi
LDP
BT : depend on the model and region
G
K
G
K
GK board : depend on the model

Board Layout -2 ( D/DS*** series )
A
K
P
LD
T*-49/43DS***
T*-49/43D***
6
G
K
A
K
P
LDP
WiFi
T*-65/55DS***
WiFi
WiFi : only DS*** series GK board : depend on the model
BT BT
BT : only TC-**DS6**, TX-**DS630 series
G
K
K
A
(P + A + GK)
TH-32D450/440/400D
A
K
P
G
K WiFi
BT
T*-50/40/32DS***
T*-40/32D*** (except 32inch India model)

D4** DS4**/5**/6** DX6**/7**/8**
(4K)
DX900
(4K)
24inch --- A+P --- ---
32inch A+P /
(India : 1 Board)
A+P --- ---
40inch A+P A+P A+P+LDP ---
43inch A+P+LD A+P+LD --- ---
49inch A+P+LD A+P+LD A+P ---
50inch --- A+P A+P ---
55inch --- A+P+LDP A+P ,
A+P+PB: (only
TH-55DX640*,
TC-55DX700*)
---
58inch --- --- A+P A+P+PB
65inch --- A+P+LDP A+P+PB A+P+PB
7
Except K, GK boards
Main Board Structure

Board Name Function
A-Board Main Board
P-Board Power supply, Backlight Drive, Power key, Control key
K-Board Remote Receiver, LED
A02
A12
A10
P3
PA
AC input
K10
Speaker Speaker
K
A15
8
Board Layout -1
( 32D410/400 )
A+P

A02
A15
A12
A10
P2
P
A
AC input
K10
WiFi Module
Speaker Speaker
K
(T-CON)
Not repairable,
One of the panel module
A19
P4
9
Board Layout -2
( 49DS630 )
LD
LD1
LD2
A+P+LD/LDP
GK
Board Name Function
A-Board Main Board
P-Board Power supply for Signal Process
LD-Board Power supply for Backlight Drive
Board Name Function
GK-Board Key
K-Board Remote Receiver, Power LED
P5

Board Name Function
A-Board Main Board
P-Board Power supply for Signal Process
PB-Board Power supply for Backlight Drive
10
Board Layout -3
Board Name Function
GK-Board Key
K-Board Remote Receiver, Power LED
PB A
WiFi Module
Speaker Speaker
K
(T-CON)
Not repairable,
One of the panel module
( 65DX900 )
A+P+PB
P
GK
Bluetooth Module
AC input
P2
P3
P6
PB6
PB3
PB1
PB2
PB5
K10
A02
A15
A12
A10
A16
A08
A17

11
2. Video Signal Processing

A
AV
Component
Antenna
terminal
OPT_out
IC8000
(MTK5561)
Resize
IP conv.
OSD
HDMI1/2
TU670*
TUNER
IC68**
De-Modulation
The input terminals are different by the models or countries.
LVDS Data
to LCD Panel
12
Video/Audio Signal Process - 1
D5** / D4** series
USB1

SCART
(only Europe)
A
AV
Component
Antenna
terminal
WiFi
OPT_out
IC8000
(Peaks LD6/
sLD8A)
Resize
IP conv.
OSD
HDMI1/2/3
(*1)Bluetooth
TU670*
TUNER
(*)Headphone
IC68**
De-Modulation
CI-slot
(only Europe)
The input terminals are different by the models or countries.
IC8601
(USB HUB)
LVDS Data
to LCD Panel
13
Video/Audio Signal Process - 2
DS5** / DS6** series
(*1) Bluetooth : only TC-**DS6**(except Canada), TX-**DS630*
USB1/2
LAN IC8650
(LAN)

A
AV
Component
Antenna
terminal
WiFi
OPT_out
IC8000
(MT5810)
Resize
IP conv.
OSD
2D->3D
TU670*
TUNER
USB2
(*)Headphone
IC68**
De-Modulation
USB3.0
The input terminals are different by the models or countries.
IC8601
(USB HUB)
to LCD Panel
14
Video/Audio Signal Process - 3
IC9000
(Mstar/NTK)
Frame Rate
Convert
DX6** / DX7** / DX8** series
( V by One format )
LAN
IC4500
HDMI
SW
USB1
(*1) Bluetooth : only DX9**/7** (except TC-**DX700C)
(*1)Bluetooth
HDMI1/2/3/(4)
(except below
models
CI-slot
(only Europe)
HDMI1/2/3/(4)
(TX-DX8**
TH-DX640
TC-DX700C)

A
Component
Antenna
terminal
WiFi
OPT_out
IC8000
(MT5810)
Resize
IP conv.
OSD
2D->3D
Bluetooth
TU670*
TUNER
USB2
(*)Headphone
USB3(3.0)
(*) The input terminals are different by the models or countries. 15
Video/Audio Signal Process - 4
IC9000
(NTK)
Frame Rate
Convert
DX900 series
IC4300
(GCEX2)
HDR
Hexa-
chroma
LAN
CI-slot
(only Europe)
IC4500
HDMI
SW
USB1
IC8705
(USB HUB)
( V by One format )
to LCD
Panel
IC68**
De-Modulation
SD card
(only TC/TX
HDMI1/2/3/4

The main function of the A board is to select and process one of the incoming video signals.
IC8601 is just switches of USB signals. The built in WiFi module is connected by USB type
terminal.
Video input, Component Video Input, HDMI input and the composite video output of the tuner
are all connected to IC8000 for selection. The video input signal can be two formats: Video, or Y,
Pb, Pr. A comb filter inside IC8000 converts the composite video signal of the main picture to Y
and C (luminance and chrominance) signals. The signal is then converted to RGB. At the
completion of this process, the format of the composite signal is now the same as a digital 1080i
component signal. If the incoming video is in the 480p, 720p, 1080i, and 1080p format, the Y, Pb,
and Pr signals undergo A/D (analog to digital) conversion. Finally all picture signals are
converted to 1080p.
Digital television reception of the tuner is output in the form of an IF (Intermediate Frequency)
signal. The transport stream from the tuner enters the VSB I/F (Interface) section of IC8000 where
the video signal is extracted and converted to YUV data. The output is provided to the Video Input
I/F for selection. The JPEG data of the SD card enters the JPEG I/F section of IC8000 for
conversion into YUV data and output to the Video Input I/F circuit. The video input interface
outputs the selected picture data to the video process circuit.
This Video Process section of the IC performs all picture control operations such as brightness,
contrast, color, tint, etc. On Screen Display data such as channel numbers, Digital TV closed
caption, and picture adjustments are mixed with the video data. If in 3D mode, it converts to the
right and left pictures. After the process, LVDS (Low Voltage Differential Signaling) is output to
LCD panel module. # IC9000 is the frame rate converting IC for high speed LCD panel. IC4300
adjust the brightness for HDR feature.
16
Video/Audio Signal Process - 5

<LCD Panel Test Mode> :
When abnormal picture is displayed, troubleshoot by the test pattern in LCD module.
If the picture is no problem, A board must be defective.
If the picture is also abnormal, LCD panel module must be defective. Just in
case, confirm the flat cable connection between A board and T-CON board.
How to enter :
While pressing "volume(-)" button of the TV unit,
press "option/yellow" button of the remote control 3 times within 2 seconds.
How to exit :
Switch off the TV unit
#)The test pattern is created by the circuit in LCD Panel Module(T-CON board).
Troubleshoot for Video Signal Problem
17
Some patterns are
automatically changed.
The patterns are depend
on the LCD panel.
A
IC8000
(Peaks/MTK )
Resize
IP conv.
LCD Panel
LCD Panel Module
T-CON
Test
Pattern

<TV Self Test> : Customers also can check the picture and sound by internal data.
If the picture and sound is no problem, the reason of trouble is mostly not a TV.
How to display :
Menu HELP TV Self Test
#)The test pattern and test sound are created by the main IC on the A board.
TV Self Test
Yes No
1) During this indication
“Self Check of Service Mode”
is working at the background.
2) If NG, indication is shown.
# A board defective
3) If All OK, it shifts to picture
and sound test.
(OK)
1.Antenna level low
2.Connection mistake
3.Input devices NG
4.Input select mistake
TV unit defective.
(A board, Panel or
Speaker)
*) D400/410 series do not support.
Troubleshoot for Video/Audio Signal Problem
18
A
IC8000
(Peaks/MTK )
Resize
IP conv.
LCD Panel
LCD Panel Module
T-CON
Test
Pattern

19
3. Power Supply
3-1. Power Board Structure

(Backlight)
P
REG
16V
STB5V
16V
LED
Drive
IC
BL-ON
Anode
Cathode
PWM
PFC
IC
Power
IC
Power
IC
HO
LO
VLED
< P >
A
20
Power Board Structure 1 ( P Board only )
BL-ON