Samsung LN40C650L1FXZA Fast Track Guide [SM] schematic

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Fast Track Troubleshooting Manual Rev - 1/11/12 

LN40C650L1FXZA   LN40C650L1FXZA

SERVICE BULLETINS No Bulletins as of 1/11/12 on GSPN But see new 2010 LCD Option Byte

POWER PCB

chart. 

Insert Photo of TV Board Layout

MAIN Include PCBBoard Assy names (as appearing in parts) and

Version  Version 

any

special labels/items labels/items (i.e. Plasma voltage label) LVDS

BOARD

T-CON PCB (under shield)

HELP : 1-888-751-4086; 1-866-894-0637 (FE) http://gspn3.samsungcsportal.com  

PLUS ONE http://my.plus1solutions.net/clientPo rtals/samsung   http://my.plus1solutions.net/clientPortals/samsung

HOT TIPS Power On Problems:  (see page 2) Video Problems: (see pages 3,4) TIP: After replacing Main/Panel picture is upside down. Fix: Test Mode/Mirror Option/Toggle No Test Patterns:Do Firmware Upgrade

SPEAKER

BN44-00340B

 ALL  ALL

BN96-13226B BN94-02620N

Main PCB

 ALL

BN07-00831A

Panel

 ALL

FIRMWARE 10/18/2010

Firmware for Valencia 1G Model -. Version : 1030.1 -. Folder Name: T-VALAUSC -. Related Related Models LCD: C560 (Only (Only 40"), C650, C670, C750 And this firmware prevents prevents below issues..'USB Power Overload' message pops up even USB port is not connected . Plug & Play is displayed whenever turning on TV.

Short Description

 ALL

DRIVER

CABLE SPEAKER

Parts No

BN81-04154A

Power PCB Function & IR PCB 

T-CON PCB

 ALL

BN96-10689A

Stand Guide Neck

 ALL

BN96-12767B

Rear Cover

 ALL

BN96-12752A

Front Cover

 ALL

BN96-12795C

Stand Guide

 ALL

BN96-12762A

Stand Base

 ALL

BN40-00163A

Tuner

 ALL

BN96-12837A

Speaker

 ALL

BN96-12723C

LVDS Cable

 ALL

3903-000467

Power Cord

 ALL

BN59-01042A

 ALL

BN63-01798B

Remote

1

Cleaning Cloth

LN32C350D1DXZA   LN32C350D1DXZA

Fast Track Troubleshooting Manual  Manual   

CN201

SW-P

Wiring Diagram Include Connector Numbers , Refer References, ences, and Locations.

Power On Sequence (approximate Voltages) )  1. St Stan andb dby y Vol olta tag ges es:: CN201-4 (5V) 2. Power On CN201- 2(0 – 3V ) 3. Lo Low w Vol Volta tage ge Su Supp ppli lies es On On CN2011,3,5,7,13,15,17 (Volts Listed on CN802)  CN802)  4. Back Li Light On On CN201- (0-3V, delayed) 5. Ba Back ck Li Lig ght Con Confi firrm CNI802- (FB1 & FB2) 6. Dimming Si Signal CN201-14 (1V–4V approx) 

To Force Backlight On without Main Board : 1. Remov move Po Power Co Cord 2. Remove CN CN802 3. Pl Plug ug Power C Co ord In In. 4. Bac ack kligh lightt shou should ld be on immediately. 2

Fast Track Track Tr Troubleshooti oubleshooting ng Manu Manual al   TROUBLESHOOTING VIDEO PROBLEMS T-Con Troubleshooting 1. Verif erify y Vid Video eo Oper Operat atio ion n a. Customer Picture Test (models available) b. “Display” (If display is OK source is suspected) C. Substitute with known good Source (external DVD or Signal Generator) Generator )

2. Using Test Patterns in Service Mode - ENTER SERVICE MODE MODE –  – 1. Select an active source signal. (HDMI preferred) Test Pattern may rely on signal source to appear. Customer Remote Service Remote 2. 2.   Power off 2. Power On 3.

Mute, 182, Power

3.

Info, Factory

2010 Models with FRC 120Hz/240Hz FBE

FRC 1.Check OSD & Customer Picture Test. 2. Access SVC Mode (with source s ource signal) 3. Activate FBE Test FBE Test Patterns & Verify. 4. Activate FRC Test FRC Test Patterns & Verify. 

3

Fast Track Troubleshooting Manual  Manual 

ON SCREEN FAILURE EXAMPLES:

ALIGNMENTS: 1.

If Picture & Display Display errors errors Defective Main Board, LVDS, LVDS, or T-CON

Check/Set Option Bytes:

Green lines or a green screen defective main board , LVDS , or T-CON.

Model Code 

Front Color Type 

LN40C650L1FXZA

Pixelization can be caused by the main board but is more commonly a source error

T-RBLK

40L1UF0C

Model 

Tuner  

Region 

LC650

Semco 

US 

DDR 



2. Check/Perform Firmware Upgrade for all repairs. 3. Perform reset in Service Mode & Plug and Play if Main board is replaced.

SPECIAL NOTES: Vertical or Horizontal Lines :Defective Panel likely but also T-CON, LVDS, LVDS, or Main Board. Use Test Patterns in Factory Service Mode to determine error)

Inform customer customer of reset of all Settings if Main Board or Panel is replaced. 4

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