PX**E400****** [43]

For PDP TV E400 Series

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

Series2012

Feature Size(inch)

400• Narrow Bezel• 2HDMI• 852 x 480

Ⅱ. Specification

Items PE400

General

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

Input &

Output

Composite In (A/V) 1

Component In (Y/Pb/Pr) 1

HDMI1.4 ×

1.3 2 (3D Format Not Supported)

USB 1

Digital Audio Out (Optical) ×

Ethernet (LAN) ×

Feature

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 ViewViewing Front Viewing Front

Jog Key : Not light up

Menu KeyRemote Control SensorPower Indicator

Samsung Logo : Not light up

Speaker

Ⅲ. Front/Rear ViewViewing RearViewing Rear

E400E400

Ⅳ. LayoutE400 LayoutE400 Layout

X/Y-Main

SMPS X-Buffer

Speaker (R)

Speaker (L)

Logic Board Main Board

Ⅳ. LayoutWiring Diagram [43E400]Wiring Diagram [43E400]

CN4004

Ⅳ. Layout [E400]Main Board : F5CA (96×158)Main Board : F5CA (96×158)

158

96

SPEAKER

SMPS

Audio

Amp

X9 DDR

X9

HDMI

USB FUNCTION

LVDS

Main EEPRom

AV/ COMPONENT

HDMI

Serial

Flash

Ⅴ. Disassembly 43”

1. Place the TV face down on cushioned table.

Remove 4 screws from the Stand. Remove stand.

2. Remove the screws of rear cover.3. Lift up the rear cover.

Ⅴ. Disassembly 43”

4. Remove the left and right speaker.5. Remove the cables and screws from SMPS, Main board.

5. Lift up cover Bottom then remove the screws from Bracket stand link.6. Lift up the Bracket stand link and panel.

Ⅶ. How to Check PDP TV Problem

S S S SS

CRT : Cell-by-Cell Scanning, Scanning=Display

SSSSSSSS

SSSSSSSS DDDD

DDDDDDDDDDDD

PDP : Line-by-Line Scanning and then Display

S=D

DDDDDDDDDDDDSSSS

DDDDDDDDSSSSDDDD

DDDDSSSSDDDDDDDD

SSSSDDDDDDDDDDDD

DDDDDDDDDDDDSSSS

AMLCD : Line-by-Line Scanning & Memory. Always Display

Scanning(=Addressing) Display Separated = ADS

- Display Drive Scheme

Ⅶ. How to Check PDP TV Problem

Original Im

age

SF1

1.....2

480

128T64T32T16T8T4T2T1T

1TV field (Frame)scan

line

Reset + Address

Sustain

SF2 SF3 SF4 SF5 SF6 SF7 SF8

Reset Address Sustain

• Sustain component destruction

• Wall voltage initialization

• Sustain component destruction

• Wall voltage initialization

• Wall voltage initialization• Wall voltage initialization

ResetReset AddressAddress SustainSustain

sub-field

• Visible light emitted by the cell discharge

• 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 On1. PS_ON Signal On(Main Board→ SMPS )

2. SMPS Works2. SMPS Works( Low Voltage Block )

3. Logic Board Works3. Logic Board Works4. VS_ON Signal On4. VS_ON Signal On

( Logic Board→ SMPS )

5. SMPS Vs, Va Voltage On5. SMPS Vs, Va Voltage On 6. DC/DC Block Works6. DC/DC Block Works( Vscan, Ve )

DisplayDisplay

When VS_ON signal does not occurVs voltage is not supplied, and a “No Screen" phenomenon occurs.

Ⅶ. How to Check PDP TV Problem

■ Driving Block Diagram

X-BUFFERY-MAIN

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

- Logic Board Problem : LED blink once per 8 seconds

Repeat...

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