Samsung SLJ402W - Tantus - 40" Rear Projection TV User manual

SAMSUNG LCD Projection TV SERVICE GUIDE
Last update: 4/18//01
*Supercedes and appends service manual data*
Covers Models: (L52A & L56A-Chassis)
PLH403W, PLH403W1, PLH403WS, PLH403W3, PLH403WS3
PLK435WS, PLK405W
SLJ402W, SLK407W

SAMSUNG LCD Projection TV SERVICE GUIDE
Last update: 4/18//01
Table of Contents
Sections
1.How to Use This Guide
2.Service Bulletins
3.Flow Charts
4.Parts Data
5.Assembly/Disassembly
6.Escalation/Who to Call

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 2 -Service Bulletins
Last update: 4/18//01
How to use this Guide
This guide is divided into seven sections. Start with the section marked
“Instructions”.
The models covered in this document are derived from the L52A chassis. However; this
chassis has several different versions that are NOT covered in the service manuals.
Instructions to Start Service:
1. Obtain model, serial and symptom.
2. Review service bulletins (section 2), for common fixes. If Service Bulletin states that
repair is common, complete repair as indicated. Otherwise, proceed to section 3.
3. If the previous steps do lead to a clear diagnosis, then proceed to the flow chart in
section 3 to help assist you in determining the correct PCB’s to order.
4. Place order through Samsung Parts Department.
Note: Distributors DO NOT carry PCB’s, so backorder with no eta will result. Parts
Department will not accept an order for PTV parts without a serial number because
correct ID cannot be assured.
5. Parts will automatically ship 2nd day.
6. When installing parts (refer to section 6 -Assembly/Disassembly), repair alignment
or adjustment will be necessary.
Geometric; Color Temp, etc. –to enter, press “Mute 182”
Important Points:
1. Auto Mileage: We will pay $0.50 per mile travel time without special approval, up to
50 additional miles beyond the 25 miles required by contract. However; you must
provide proof, such as Internet driving directions or similar verifiable map and attach it to
the claim when submitted.

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 2 -Service Bulletins
Last update: 4/18//01
Subject: Microprocessor (IC901) software upgrade.
Background:
1. During channel up / down, a pop noise is heard when connected to the “Monitor
Audio / Video Output Jacks”.
2. When using the DVD component input jacks, “COMPONENT” flashes (OSD).
Countermeasure: Replace IC901.
Parts list: Parts #: AA13-30005F.
SERVICE BULLETIN
PRODUCT: PJT
BULLETIN: LCD-01
MODEL: PLH403W

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 2 -Service Bulletins
Last update: 4/18//01
Subject: White balance and gamma adjustment.
Background: When the white balance and gamma adjustment can not be performed
by visual method, refer to method using test equipment.
Countermeasure: Adjustment using test equipment:
Equipment:
1. NTSC signal generator, 10–step signal. Each step of 10 IRE, last step is 100 IRE.
This can be confirmed by using waveform monitor.
2. Color & chromaticity meter (Minolta CS-100).
Procedure: Set the color temperature to the value listed below, using the color &
chromaticity meter with a specific step displayed by the signal generator. Adjust values
in the service mode to achieve good white balance and gamma. Refer to service
manual page 5-4 & 5-5. To enter service mode, press Mute-1 –8 –2 with power off.
Power set on; service mode will be displayed.
1. High light 80 IRE: Y=(13+/-3.0), x=(0.285+/-.007), y=(0.284+/-.007).
Use control No. 20(Sub contrast, 22(R sub contrast), 23(B sub contrast).
2. Mid light 40 IRE: Y=(2.4+/-0.5), x=(0.284+/-.007), y=(0.272+/-.007).
Use control No. 15(Sub bright), 16(B sub bright), 17(R sub bright).
3. Low light 20 IRE: Y=(0.3+/-0.1), x=(0.291+/-.007), y=(0.264+/-.007).
Use control No. 7(Gamma ctrl 1), 8(R gamma ctrl 1), 9(B gamma ctrl 1).
Note: Repeat adjustment of each control to achieve best results.
SERVICE BULLETIN
PRODUCT: PJT
BULLETIN: LCD-02
MODEL: All LCD models

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 3 -Flow Charts
Last update: 4/18//01
video repair flow chart
"missing"
change power pcb
"missing"
change main pcb
"missing"
change power pcb
"8, 12, 13.5 and 15.5 volts ok"
replace LCD control pcb
"3 volts ok"
LCD drive voltages, CNL03 pins 2, 4, 6 and 8
pin 2 = 8 volts dc, pin 4 = 12 volts dc,
pin 6 = 13.5 volts dc, pin 8 = 15.5 volts dc
"8, 12 and 36 volts ok"
CNL01 pins 2, 4 and 6
all pins should measure 3 volts dc
video power supply
AP2 pins 3, 6 and 8
pin 3 = 8 volts dc, pin 6 = 12 volts dc
pin 8 = 36 volts dc
power repair flow chart
"missing"
check or change switch
"missing"
change power pcb
"4 volts missing"
change main pcb
"lamp ok"
ballast pcb needs to be replaced
must replace complete optical engine
"4 volts dc ok"
replace lamp
"P803"C" 170 volts dc ok"
AB1 pin 3, 4 volts dc, after pressing power button
lamp should lite after 5 seconds
"5 volts ok"
P803"C" 170 volts dc
switch detect
switch is closed
AF1 pin 3, 5 volts

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 4 -Parts Data
Last update: 4/18//01
Name Model Part No. Description
Main PLH403W AA94-10144F ASSY-PCB,MAIN(OPT);SPT-403JA,L52A,U.S.A,
PCB PLH403W1 AA94-01720A ASSY-PCB,MAIN(OPT);PLH403W1X/XAA,L52A,US
PLH403WS AA94-02019A ASSY PCB MAIN(OPT);PLH403WSX/XAA,L52A,US
PLH403W3 AA94-01956A ASSY PCB MAIN(OPT);SLK407WX,L56A,KOREA,-
PLH403WS3 AA94-01956B ASSY PCB MAIN(OPT);PLH403WS3X/XAA,L56A,U
SLJ402W AA94-01203A ASSY-PCB,MAIN(OPT);SLJ402WX/XAA,L52A,USA
SLK407W AA94-01956H ASSY PCB MAIN(OPT);SLK407WX/XAA,L56A,U.S
PLK405W AA94-01956C ASSY PCB MAIN(OPT);PLK405WX/XAA,L56A,USA
PLK435WS AA94-02562A ASSY PCB MAIN(OPT);PLK435WSX/XAA,L56A,US
Optical Engine
PLH403W PLH403W1 PLH403WS SLJ402W AA91-20057A ASSY-LENS,MECHA;DS001AKB-6
PLH403W3 PLH403WS3 PLK435WS SLK407W
PLK405W AA91-00242A ASSY-LENS,MECHA;-,-,DS007,ST-43J6
LCD Control PLH403W AA95-90036D ASSY-PCB,LCD.CONTROL;-,PLH403WX/XAA,ALT5
PCB PLH403W1 SLJ402W AA95-00330A ASSY-PCB,LCD CONTROL;-,SLJ402WX/SHO,L52A
PLH403WS AA95-00501A ASSY-PCB,LCD CONTROL;-,SLJ402W,L52A,-,-,
PLH403WS PLH403WS3 PLK435WS SLK407W
PLK405W AA95-00578A ASSY-PCB,LCD CONTROL;-,PLH403W3X/XAA,L56
Lamp PLH403W PLH403W1 PLH403WS SLJ402W AA47-10001B LAMP;SPT-403J
PLH403W3 PLH403WS3 PLK435WS SLK407W
PLK405W AA47-00003A LAMP-MERCURY -,-,-,6000HR,150*73,
Power PCB PLH403W1 PLH403WS PLH403W3 PLH403WS3
SLJ402W AA95-00350A ASSY-PCB,POWER;SLJ402W,L52A,40",-,USA,-
SLK407W PLK405W AA95-00350A ASSY-PCB,POWER;SLJ402W,L52A,40 10/12/1999
PLK435WS AA95-00671A ASSY PCB POWER PLK435WSX/XAA,L56A,4
PLH403W AA95-10011E ASSY-PCB,POWER;PLH403WX/XAA,L52A,40",-,U
Ballast PCB PLH403W PLH403W1 PLH403WS SLJ402W AA81-10001A BALLAST (SONY);SPT403J 40" LCD TV
PLH403W3 PLH403WS3 PLK435WS SLK407W PLK405W AA47-00002A LAMP-BALLST;DS-B012,-,-,280,150*73,-,13

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 5 -Assembly/Disassembly
Last update: 4/18//01
Dis-assembly Procedure
Dis-assembly Procedure
1. Open bottom cabinet 2.Unscrew bracket-back
3.Unscrew Bottom screw 4.Unscrew Bottom screw below 2screw
5.open Flat cable and 2 screw 6.open connector

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 5 -Assembly/Disassembly
Last update: 4/18//01
7.unscrew 1 screw 8.exchange Optical Engine

SAMSUNG PROJECTION TV SERVICE GUIDE
Section 6 -Escalation/Who to Call
Last update: 4/18//01
Escalation Paths and Technical Support
1. Parts Issues
If wrong or defective parts are received, contact Parts Department with the
invoice or PO numbers to resolve.
If the parts do not fix the problem and you need technical assistance:
973-601-6124 between 9:00 –5:30 EST
3. Regional Service Engineers are available for each geographic region. They are your
primary contact for all technical and policy related issues that cannot be resolved through
normal means. Their regions and phone numbers:
West Zone: Jeff Reeves 310-537-7000 x131
Mid-West Zone: Mark Rowland 630-879-1401
East Zone: Anthony Ippolito 973-601-6005
South Zone: Dan Girdley 678-560-9140
4. Website: www.samsungasc.com
Logon: ID = your account number
Password = your zip code
Our ASC website contains most service manuals in PDF format ready for download.
To use these files you need Adobe Acrobat Viewer which can be downloaded for
free @ www.adobe.com. This site also contains other support data; i.e. service
bulletins, BIOS files and our policy guide.