Samsung HPT4264X-XAA, HPT5064X-XAA Service Manual

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1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
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HP-T4264 HP-T5064
SODVPD#GLVSOD\#WY
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Refer to the service manual in the GSPN (see the rear cover) for the more information.
This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.
© Samsung Electronics Co., Ltd. Feb. 2007
Printed in Korea
AA82-04331A
Area Web Site North America service.samsungportal.com Latin America latin.samsungportal.com CIS cis.samsungportal.com Europe europe.samsungportal.com China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com
GSPN (Global Service Partner Network)
Table of Contents
Chapter 1 Precaution
1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-3 Static Electricity Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-4 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Chapter 2 Product Specification
2-1 Product Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Specifications Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Chapter 3 Disassembly & Reassembly
3-1 Overhaul Disassembly & Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Chapter 4 Troubleshooting
4-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4-3 Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Chapter 5 Exploded View & Part List
5-1 HPT4264X/XAA Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 HPT5064X/XAA Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-3 HPT4264X/XAA Service Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5-4 HPT5064X/XAA Service Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Chapter 6 Wiring Diagram
6-1 Overall Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Chapter 7 Schematic Diagram
7-1 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7-2 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
1. Make sure all protective devices are properly installed including non-metallic handles and compartment covers when installing or re-installing the chassis or chassis assemblies.
2. Make sure that no gaps exist between the cabinets for children to insert their fingers in to prevent children from receiving electric shocks. Gaps mentioned above include ventilation holes between the PDP module and the cabi­net mask, and the improper installation of the rear cabi­net.
Errors may occur when the resistance is below 1.0 ㏁ or over 5.2 ㏁.
In these cases, make sure that the device is repaired before sending it back to the customer.
3. Check for Electricity Leakage (Figure 1-1) Warning: Do not use an insulated transformer for check­ing the leakage. Use only those current leakage testers or mirroring systems that comply with ANSIC 101.1 and the Underwriter Laboratory's specifications (UL1410,
59.7).
Fig. 1-1 AC Leakage Test
4. Ahigh voltage is maintained within the specified limits using safety parts, calibration and tolerances. When voltage exceeds the specified limits, check each special part.
5. Warning for Engineering Changes: Never make any changes or additions to the circuit design or the internal part for this product. Ex: Do not add any audio or video accessory connectors. This might cause physical damage. Furthermore, any changes or additions to the original design/engineering will invalidate the warranty.
6. Warning - Hot Chassis: Some TV chassis are directly connected to one end of the AC power cord for electrical reasons. Without insulated transformers, the product can only be repaired safely when the chassis is connected to the earth end of the AC power source.
To make sure the AC power cord is properly connected, follow the instructions below. Use the voltmeter to measure the voltage between the chassis and the earth ground. If the measurement is over 1.0V, unplug the AC power cord and change the polarity before re­inserting it. Measure the voltage between the chassis and the ground again.
7. Some TV chassis are shipped with an additional sec­ondary grounding system. The secondary system is adjacent to the AC power line. These two grounding systems are separated in the circuit using an unbreak­able/unchangeable insulation material.
8. When any parts, material or wiring appear overheated or damaged, replace them with new immediately. When any damage or overheating is detected, correct this immediately and make a regular check of possible errors.
9. Check for the original shape of the lead, especially that of the antenna wiring, any sharp edges, the AC power and the high voltage power. Carefully check if the wiring is too tight, incorrectly placed or loose. Never change the space between the part and the printed circuit board. Check the AC power cord for possible damages. Keep the part or the lead away from any heat-emitting materials.
Precaution
Samsung Electronics 1-1
To avoid possible damage or electric shocks or exposure to radiation, follow the instructions below with regard to safety, instal­lation, service and ESD.

1. Precaution

1-1 Safety Precautions

(READING SHOULD
DEVICE UNDER
TEST
EXPOSED METAL
2-WIRE CORD
ALSO TEST WITH
PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)
TEST ALL
SURFACES
LEAKAGE CURRENT
TESTER
NOT BE ABOVE
0.5mA)
EARTH
GROUND
10. Safety Indication: Some electrical circuits or device related materials require special attention to their safety features, which cannot be viewed by the naked eye. If an original part is replaced with another irregular one, the safety or protective features will be lost even if the new one has a higher voltage or more watts.
Critical safety parts should be bracketed with ( ). Use only regular parts for replacements (in particular, flame resistance and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire.
Precaution
1-2 Samsung Electronics
!
1. The service instructions are printed on the cabinet, and should be followed by any service personnel.
2. Make sure to unplug the AC power cord from the power source before starting any repairs. (a) Remove or re-install parts or assemblies. (b) Disconnect the electric plug or connector, if any. (c) Connect the test part in parallel with the electrolytic capacitor.
3. Some parts are placed at a higher position than the printed board. Insulated tubes or tapes are used for this purpose. The internal wiring is clamped using buckles to avoid contact with heat emitting parts. These parts are installed back to their original position.
4. After the repair, make sure to check if the screws, parts or cables are properly installed. Make sure no damage is caused to the repaired part and its surroundings.
5. Check for insulation between the blade of the AC plug and that of any conductive materials (i.e. the metal panel, input terminal, earphone jack, etc).
6. Insulation Check Process: Unplug the power cord from the AC source and turn the switch on. Connect the insu­lating resistance meter (500v) to the AC plug blade.
The insulating resistance between the blade of the AC plug and that of the conductive material should be more
than 1 ㏁.
7. Any B+ interlock should not be damaged. If the metal heat sink is not properly installed, no connection to the AC power should be made.
8. Make sure the grounding lead of the tester is connected to the chassis ground before connecting to the positive lead. The ground lead of the tester should be removed last.
9. Beware of risks of any current leakage coming into contact with the high-capacity capacitor.
10. The sharp edges of the metal material may cause physical damage, so protect yourself by wearing gloves during the repair.
11. Due to the nature of plasma display panels, partial after­images may appear if a still picture is displayed on the screen for a long period of time. This is caused by brightness deterioration due to the storage effect of the panel, and to prevent this from happening, we recommend that the brightness and con­trast are reduced. (e.g.) Contrast: 25, Brightness: 50
Precaution
Samsung Electronics 1-3
Warning 1: First carefully read the "Safety Instruction" in this service manual.
When there is a conflict between the service and the safety instructions, follow the safety instruction at all times.
Warning 2: Any electrolytic capacitor with the wrong polarity will explode.

1-2 Servicing Precautions

1-3 Static Electricity Precautions

1. Some semi-conductive ("solid state") devices are vulnerable to static electricity. These devices are known as ESD. ESD includes the integrated circuit and the field effect transistor. To avoid any materials damage from electrostatic shock, follow the instructions described below.
2. Remove any static electricity from your body by connecting the earth ground before handling any semi-conductive parts or assemblies. Alternatively, wear a dischargeable wrist-belt. (Make sure to remove any static electricity before connecting the power source - this is a safety instruction for avoiding electric shock)
3. Remove the ESD assembly and place it on a conductive surface such as aluminum foil to prevent accumulating static electricity.
4. Do not use any Freon-based chemicals. Such chemicals will generate static electricity that causes damage to the ESD.
5. Use only grounded-tip irons for soldering purposes.
6. Use only anti-static solder removal devices. Most solder removal devices do not support an anti-static feature. Asolder removal device without an anti-static feature can store enough static electricity to cause damage to the ESD.
7. Do not remove the ESD from the protective box until the replacement is ready. Most ESD replacements are covered with lead, which will cause a short to the entire unit due to the conductive foam, aluminum foil or other conductive materials.
8. Remove the protective material from the ESD replacement lead immediately after connecting it to the chassis or circuit assembly.
9. Take extreme caution in handling any uncovered ESD replacements. Actions such as brushing clothes or lifting your leg from the carpet floor can generate enough static electricity to damage the ESD.
Precaution
1-4 Samsung Electronics
CAUTION
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
Precaution
Samsung Electronics 1-5

1-4 Installation Precautions

1. For safety reasons, more than two people are required for carrying the product.
2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.
3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
4. Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed to moisture. Otherwise, it may cause a fire or electric shock.
5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock.
6. Keep the antenna far away from any high-voltage cables and install it firmly. Contact with the high-voltage cable or the antenna falling over may cause fire or electric shock.
7. When connecting the RF antenna, check for a DTV receiving system and install a separate DTV reception antenna for areas with no DTV signal.
8. When installing the product, leave enough space (4") between the product and the wall for ventilation purposes. Arise in temperature within the product may cause fire.
9. When moving a PDP with removable speakers, detach the speakers first before moving the main body. Moving the PDP main body without separating the speakers may cause the speakers to detach, possibly causing damage or injury.
1-6 Samsung Electronics
MEMO
Product Specification
Samsung Electronics 2-1

2. Product Specification

2-1 Product Specification

Features
Block Specification Major IC Remark
RF Digital/Analog (DTV Built In)
NTSC/VSB/QAM Tuner S4LF111X01(Lake2)
PDP Module Samsung SDI W2AModule 42"HD/50"HD New Module
Power
Samsung/Dong-yang electro mechanics SMPS
Video
NTSC 3.58, ATSC HDMI DNIe(FBE2) Component, PC
Lake2 SDP64
Sound SRS TruSuround XT, Dolby Digital MSP 4450K, NTP-3000 Optical Output
Cabinet Q9 Design
Specification
Model HP-T4264 HP-T5064
Screen Size 42 Inches (16:9) 50 Inches (16:9)
Dimensions (WxHxD)
41.7 x 29.8 x 12.4 inches (with stand)
41.5 x 27.54 x 4.1 inches (without stand)
Weight
73.85 lbs (with stand)
67.68 lbs (without stand)
97.0 lbs (with stand)
91.5 lbs (without stand)
PC Resolution 1024 x 768 @ 75Hz 1365 x 768 @ 60Hz
Voltage AC 100~240V, 60Hz
ANTENNAinput
ANT 1 - AIR IN
ANT 2 - CABLE IN
※75Ω
unbalanced
VIDEO input
AV1, AV2
S-VIDEO1, S-VIDEO2 COMPONENT1 - 480i/480p/720p/1080i COMPONENT2 - 480i/480p/720p/1080i
PC
HDMI1 (DVI Compatible) - 480p/720p/1080i
HDMI2 - 480p/720p/1080i
HDMI3(Side-AV) - 480p/720p/1080i
AUDIO input
AV1, AV2
S-VIDEO COMPONENT1 - 480i/480p/720p/1080i COMPONENT2 - 480i/480p/720p/1080i
PC
DVI
Audio Output AUDIO (L/R)
Speaker Output 10W + 10W 15W + 15W
New Features Anynet+, WISELINK
48.46 x 33.4 x 12.44 inches (with stand)
48.46 x 31.05 x 4.1 inches (without stand)
Product Specification
2-2 Samsung Electronics
New Features explanation
- WISELINK: This function enables you to view photo (JPEG) and listen to audio files (MP3) saved on a USB Mass Storage Class (MSC) device.
- Anynet+ : Anynet+ is an AV network system that enables you to control all connected Samsung AV devices with your
Samsung TV's remote.
To directly connect to TV
TV
Anynet+ Device 1 Anynet+ Device 2 Anynet+ Device 3
Connect the [HDMI 1], [HDMI 2] or [HDMI 3] jack on the TV and the HDMI OUT jack of the corresponding Anynet+ device using the HDMI cable.
HDMI 1.3 Cable
HDMI 1.3 Cable
HDMI 1.3 Cable
To connect to Home Theater
1. Connect the [HDMI 1],
2. Connect the HDMI IN jack
Optical Cable
TV
HDMI 1.3 Cable
HDMI 1.3 Cable
Anynet+ Device 1 Anynet+ Device 2
HDMI 1.3 Cable
Home Theater
HDMI 1.3 Cable
Anynet+ Device 3
Connect the Optical cable between [Digital Audio Out (Optical)] on your TV and Digital Audio Input on the Home
Theater. Connect only one Home Theater. You can listen to 5.1 channel sound through the home theater’s speakers. Otherwise, you can only listen to 2 channel
stereo sound in other cases. Make sure to connect the Digital Audio IN (Optical) of the home theater and the TV
correctly to listen to TV sound through the home theater. However, you cannot listen to sound from the BD recorder
that is sent to the home theater via the TV in 5.1 channel sound because the TV outputs only 2 channel stereo sound.
Please see the manual for the home theater. You can connect an Anynet+ device using the HDMI 1.3 cable. Some HDMI cables may not support Anynet+ functions. Anynet+ works when the AV device supporting Anynet+ is in the Standby or On status. Anynet+ supports up to 12 AV devices in total.
[HDMI 2] or [HDMI 3] jack on the TV and the HDMI OUT jack of the corresponding Anynet+ device using the HDMI cable.
of the home theater and the HDMI OUT jack of the corresponding Anynet+ device using the HDMI cable.
Product Specification
Samsung Electronics 2-3

2-2 Specifications Analysis

Model HP-T4264 (Calla-42HD) HP-T5064 (Calla-50HD) HP-S4253 (Cadillac-42HD)
Design
Basic
Display Type PDP TV PDPTV PDP TV
Built-In Tuner
Resolution 1024 x 768 1365 x 768 1024 x 768
PDP Module W2A W2A Samsung SDI V5.1
Screen Size 42" 50" 42" Picture ratio 16 : 9 16 : 9 16 : 9
Dimensions (WxHxD) 41.5 x 29.9 x 12.4 inches 48.4 x 33.4 x 12.4 inches 41.5 x 28 x 3.8 inches
Weight 73.2 lbs / 33.2kg 97 lbs / 44kg 75.4 lbs / 34.2 kg
Picture
Brightness 1,500 Cd/m2 1,300 Cd/m2 1,200 Cd/m2
Contrast Ratio 10000:1 10000:1 7,000 : 1
Picture Enhacer FBE2 FBE2 LBE
Comb Filter
Audio
Equalizer 5 Band 5 Band 5 Band
Auto Volume Control
Surround Sound SRS TruSurround XT SRS TruSurround XT SRS TruSurround XT Dolby Digital (AC3)
Speaker Output 10W + 10W 15W + 15W 10W + 10W
Features
PIP
Double Window
Caption
Still Image
EPG
My Color Control
Color Weakness X X
Energy Saving
Anynet
X
Connections
Antenna 2 (Cable/Air) 2 (Cable/Air) 2 (Cable/Air) AV Input 2 2 2
S-Video 2 2 2 Component 2 2 2 PC(D-SUB) 1 1 1
DVI X X X
HDMI 3 3 2
Sub Woofer X X X
Optical 1 1 1
Coaxial X X 1
ETC Speaker/Stand Built-in Speaker Built-in Speaker Built-in Speaker/Stand
※○: application, X: non-application
For the power supply and power consumption, refer to the label attached to the product.
Product Specification
2-4 Samsung Electronics

2-3 Accessories

Accessories Item Item code Remark
SuppliedAccessories
Remote Control
Batteries
BN59-00599A
4301-000103
Samsung Service center
Power Cord 3903-000144
Owner's Instructions BN68-01131N
Warranty Card
Registration Card
Safety Guide Manual
BN68-00872A AA68-03870B AA68-03242F
Cloth-Clean BN63-01798A
Ferrite Core for
Power Cord
3301-001110
Ferrite Core for
Side-AV/S-VIDEO
3301-001305
Ferrite Core for
Headphone
3301-001456
Cover-Bottom Screws (2ea)
BN63-03055A
6003-001621
Accessories that canbe purchased
additionally
S-VIDEO Cable
47.244 inches
BN39-00149A
Electronics Store/
Internal shopping mall
HDMI Cable
118.11 inches
BN39-00641A
HDMI/DVI cable
118.11 inches
BN39-00643A
Component Cables (RCA)
59.055 inches
BN39-00279A
Product Specification
Samsung Electronics 2-5
Accessories Item Item code Remark
Accessories that canbe purchased
additionally
Optical Cable None
Electronics Store/
Internal shopping mall
PC Cable
72.047 inches
BN39-00115A
PC Audio Cable
78.740 inches
BN39-00061B
Antenna Cable
118.11 inches
BN39-00333A
2-6 Samsung Electronics
MEMO
Part Name Description Description Photo
Cover
Rear
Remove 4 screws. ( )
: M8,L16,ZPC(BLK),SWRCH18A,WP
Remove 15 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove 4 screws. ( )
: PH,+,WSP,S,M4,L35,ZPC(BLK)
Remove the 2 Hex nuts for the PC
input. ( )
: #4-40,L6,NI PLT,C3601,-
Remove the rear cover.
: Please lay the PDP unit face down on a
soft surface when removing the stand.
Disassembly & Reassembly
Samsung Electronics 3-1

3. Disassembly & Reassembly

3-1 Overall Disassembly & Reassembly

3-1-1 Separation of ASSY COVER P-REAR

Notice
- Be sure to separate the power cord before disassembling the unit.
- Discharge the capacitors first when separating PCB's with high capacity capacitors such as SMPS, X Main Board, YMain Board, etc. (Aspark may be generated by the electric charge, and there is danger of electronic shock.)
- Check that the cables are properly connected referring to the circuit diagram when disassembling or assembling the unit taking care not to damage the cables.
- Take care not to scratch the Glass Filter in the front.
- Assemble the boards in the reverse order of the disassembly.
- The plasma must be layed down on a flat padded surface for disassembly and reassembly.

3-1-2 Separation of ASSY PCB MISC-MAIN

Part Name Description Description Photo
Main
Board
Detach all connectors from the Main
Board.
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the Main Board.
Disassembly & Reassembly
3-2 Samsung Electronics

3-1-3 Separation of FILTER-EMI AC LINE

Part Name Description Description Photo
FILTER-
EMI
AC LINE
Detach connector from SMPS.
Remove 2 screws. ( )
: PH,+,WWP,M3,L8,NI PLT
Remove a screw. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove FILTER-EMI AC LINE.

3-1-4 Separation of BRACKET-PCB

Part Name Description Description Photo
Bracket
PCB
Remove a screw.
: BH,+,S,M4,L10,ZPC(BLK)
Remove the BRACKET-PCB.
Disassembly & Reassembly
Samsung Electronics 3-3

3-1-5 Separation of ASSY BRACKET

Part Name Description Description Photo
42"
Bracket
Remove 4 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove Bracket.
50"
Bracket
Remove 4 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove Bracket.

3-1-6 Separation of ASSY BOARD P-SIDE AV

Part Name Description Description Photo
Side AV
Remove a screw. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove a screw. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove the Side AV.
Disassembly & Reassembly
3-4 Samsung Electronics

3-1-7 Separation of ASSY BRACKET P-WALL

Part Name Description Description Photo
42"
Wall
Bracket
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove 6 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove Wall Bracket.
: Please lay the PDP panel face down
on a soft surface when separating front cover.
50"
Wall
Bracket
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove 6 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove Wall Bracket.
: Please lay the PDP panel face down on
a soft surface when separating front cover.
Disassembly & Reassembly
Samsung Electronics 3-5

3-1-8 Separation of ASSY SPEAKER P

Part Name Description Description Photo
42"
Speaker
Remove 4 screws.
: BH,+,WP,B,M4.0,L3,ZPC(BLK),
SWRCH18A
Remove the Speaker.
50"
Speaker
Remove 4 screws.
: BH,+,WP,B,M4.0,L3,ZPC(BLK),
SWRCH18A
Remove the Speaker.

3-1-9 Separation of ASSY BOARD P-POWER&IR

Part Name Description Description Photo
Power
&
IR Board
Detach all connectors from the
Power&IR Board.
Remove the Power&IR PCB unlocking
the 2 holders.
Disassembly & Reassembly
3-6 Samsung Electronics

3-1-10 Separation of SMPS-PDP TV

Part Name Description Description Photo
42"
SMPS
Detach all connectors from the SMPS.
Remove 8 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the SMPS.
: Wear gloves when handling the power
board as there may be some remaining electrical charge in the capacitor. Specifically, avoid touching any part of the capacitor.
50"
SMPS
Detach all connectors from the SMPS.
Remove 8 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the SMPS.
: Wear gloves when handling the power
board as there may be some remaining electrical charge in the capacitor. Specifically, avoid touching any part of the capacitor.
Disassembly & Reassembly
Samsung Electronics 3-7

3-1-11 Separation of ASSY PDPMODULE P-LOGIC MAIN BOARD

Part Name Description Description Photo
42"
Logic
Board
Detach all connectors from the Logic
Main Board.
Remove 4 screws.
: WSP,PH,+,M3,L8,NI PLT
Remove the Logic Main Board.
50"
Logic
Board
Detach all connectors from the Logic
Main Board.
Remove 4 screws.
: WSP,PH,+,M3,L8,NI PLT
Remove the Logic Main Board.
Disassembly & Reassembly
3-8 Samsung Electronics

3-1-12 Separation of ASSY PDP MODULE P-X MAIN BOARD

Part Name Description Description Photo
Flat Cable
Detach all Connectors from the X Main
Board.
To separate the Flat Cable of the
X-Board, press the upper and the lower sides of the connector.
42"
X-Main
Board
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the X-Main Board.
50"
X-Main
Board
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the X-Main Board.
Disassembly & Reassembly
Samsung Electronics 3-9

3-1-13 Separation of ASSY PDP MODULE P-Y MAIN BOARD

Part Name Description Description Photo
Flat Cable
Detach the 6 scan board connectors
from the panel by pulling the holder from both the top and bottom ends.
42"
Y-Scan
Board
Remove 3 screws.
: PH,+,WWP,M3,L8,NI PLT
50"
Y-Scan
Board
Remove 5 screws.
: PH,+,WWP,M3,L8,NI PLT
Disassembly & Reassembly
3-10 Samsung Electronics
Part Name Description Description Photo
42"
Y-Main
Board
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Detach all connectors from the Y-Main
Board.
50"
Y-Main
Board
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Detach all connectors from the Y-Main
Board.
Disassembly & Reassembly
Samsung Electronics 3-11
3-1-14 Separation of ASSY PDP MODULE P-ADDRESS BUFFER BOARD
Part Name Description Description Photo
42"
Still Bar
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the still bar.
50"
Still Bar
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the still bar.
42" Buffer Board
Detach the all connectors from the
buffer board.
Remove 12 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the E-Board and F-Board.
50" Buffer Board
Detach the all connectors from the
buffer board.
Remove 14 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the E-Board and F-Board.

3-1-16 Separation of ASSY PCB FUNCTION

Part Name Description Description Photo
Function
Board
Remove 2 screws.
: BH,+,B,M4,L3,ZPC(BLK)
Remove the Function Board.
Disassembly & Reassembly
3-12 Samsung Electronics

3-1-15 Separation of ASSY PANEL BRACKETS

Part Name Description Description Photo
Panel
Brackets
Remove 3 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove 4 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove the Side Panel Brackets.
Troubleshooting
Samsung Electronics 4-1

4-1-1 First Checklist for Troubleshooting

1. Check the various cable connections first.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected or loose cable connection.
- Check to see if the cables are connected according to the connection diagram.
2. Check the power input to the Main Board.
3. Check the voltage in and out between the SMPS Main Board, between the SMPS X, YMain Board, and between the Logic Boards.

4. Troubleshooting

4-1 Troubleshooting

Troubleshooting
4-2 Samsung Electronics

4-1-2 Checkpoints by Error Mode

No Power
Symptom
- The LEDs on the front panel do not work when connecting the power cord.
- The SMPS relay does not work when connecting the power cord.
- The units appears to be dead.
Major Checklist
The SMPS relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
- Check the internal cable connection status inside the unit.
- Check the fuses of each part.
- Check the output voltage of SMPS.
- Replace the Main Board.
Troubleshooting
Procedures
Is the AC IN socket connector and
the SMPS CN800 connected?
Insert the AC in connector and the
SMPS CN800 connector
Is the Fuse (F801S) of the SMPS
Power Input Part blown?
Replace Fuse (F801S)
Replace the SMPS
SMPS CN801
Pin 3 : STB 5V
Pin 2 PS-ON : Check to see if it is 0V
Replace the Main Board
Yes
No
Yes
No
No
Yes
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