For PDP TV E400 Series
PX**E400******
[43]
Ⅰ.
Concept
Ⅱ.
Specification
Ⅲ.
Front/Rear View
Ⅳ.
Layout
Ⅴ.
Disassembly
Ⅵ.
Key Feature
Ⅰ. Product Concept
Stylish : Narrow Bezel Design
Ⅰ. Product Concept
Series
400
2012
Feature
• Narrow Bezel
• 2HDMI
• 852 x 480
Size(inch)
Ⅱ. Specification
Items
General
Input
&
Output
Feature
PE400
Size[W×H×D mm] (With Stand)
1010.1×675.1×262.0
Weight With Stand [kg]
19.3
Resolution
852×480
Module(M1)
BN96-22518A
Composite In (A/V)
1
Component In (Y/Pb/Pr)
1
HDMI
1.4
×
1.3
2 (3D Format Not Supported)
USB
1
Digital Audio Out (Optical)
×
Ethernet (LAN)
×
Dolby
Dolby Digital Plus / Pulse
SRS
SRS Theater Sound HD
Dts 2.0 + Digital Out
O (DTS2.0 Only)
Sound Output
10W × 2
Picture In Picture
×
DNIe
O
C/R [typical]
1,000,000 : 1
Analog Signal Booster
×
Allshare (DLNA)
×
Viewing Angle (H/V)
Over 160
Ⅲ. Front/Rear View
Viewing Front
Menu Key
Remote Control Sensor
Power Indicator
Jog Key : Not light up
Samsung Logo : Not light up
Speaker
Ⅲ. Front/Rear View
Viewing Rear
E400
Ⅳ. Layout
E400 Layout
SMPS
X-Buffer
X/Y-Main
Logic Board
Speaker (R)
Main Board
Speaker (L)
Ⅳ. Layout
Wiring Diagram [43E400]
CN4004
Ⅳ. Layout [E400]
Main Board : F5CA (96×158)
96
SMPS
Audio
Amp
X9
SPEAKER
LVDS
X9
DDR
Main EEPRom
HDMI
158
HDMI
Serial
Flash
AV/ COMPONENT
USB
FUNCTION
Ⅴ. Disassembly 43”
1.
Place the TV face down on cushioned table.
Remove 4 screws from the Stand.
Remove stand.
2.
3.
Remove the screws of rear cover.
Lift up the rear cover.
Ⅴ. Disassembly 43”
4.
5.
Remove the left and right speaker.
Remove the cables and screws from SMPS, Main board.
5.
6.
Lift up cover Bottom then remove the screws from Bracket stand link.
Lift up the Bracket stand link and panel.
Ⅶ. How to Check PDP TV Problem
- Display Drive Scheme
CRT : Cell-by-Cell Scanning, Scanning=Display
S
S=D
S
S
S
S
Scanning(=Addressing) Display
Separated = ADS
PDP : Line-by-Line Scanning and then Display
S S S S
S S S S
S S S S
S S S S
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
S
S
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
AMLCD : Line-by-Line Scanning & Memory. Always Display
S
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
S
D
D
D
D
S
D
D
D
S
D
D
D
S
Ⅶ. How to Check PDP TV Problem
scan line
SF1SF2 SF3 SF4 SF5
SF6
SF7
SF8
Reset +
Address
1
2
.....
1T 2T 4T
8T 16T
32T
64T
128T
480
1TV field (Frame)
sub-field
Reset
Reset
Sustain
Address
Sustain
Address Sustain
• Sustain component
destruction
• Wall voltage initialization
• Wall voltage initialization
• Visible light emitted by
the cell discharge
Ⅶ. How to Check PDP Module
- 43EV Driving Board Connector layout
Ⅶ. How to Check PDP TV Problem
- PDP TV Power On Sequence
1. PS_ON Signal On
(Main Board
→ SMPS )
2. SMPS Works
( Low Voltage Block )
4. VS_ON Signal On
( Logic Board
→ SMPS )
3. Logic Board Works
When VS_ON signal does not occur
Vs voltage is not supplied, and a “No Screen" phenomenon occurs.
6. DC/DC Block Works
( Vscan, Ve )
5. SMPS Vs, Va Voltage On
Display
Ⅶ. How to Check PDP TV Problem
■ Driving Block Diagram
Y-MAIN
X-BUFFER
Ⅶ. How to Check PDP TV Problem
- Diagnosis
■ Things to check first if there is trouble
1) Check the cable connection part
2) Check LOGIC LED operating status
- Normal operation: LED blink once per 0.5 second
- Driving Board Problem (DRV Reset) : LED ON for 5 seconds → LED Off for 2 seconds
Repeat…
- Logic Board Problem : LED blink once per 8 seconds
Repeat...
Repeat...
Ⅶ. How to Check PDP TV Problem
3) Check SMPS voltage
- Check Low Voltage Block(Standby 5V , D5V , D3.3V)
and High Voltage Block(Vs, Va, etc.)
4) Check the power input part of the main board
5) Check the power input part of the logic board
6) Check the power input part of the driving board and drive element
damage by a fire availability
- Check FET , IGTB Short
- Check Scan IC OUT_L ↔ OUT_H Short
7) Check Address Buffer fuse, MLCC, and resistance