Samsung PL50B450B1DXZX Service Manual
PLASMA DISPLAY TV
Por APITE4 fecha 9:25 , 16/07/2009
Chassis : F64A(N_HD)_B450
Model : PL50B450B1DXZX
SERVICE
Manual
PLASMA DISPLAY TV CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
PL50B450B1D
Refer to the service manual in the GSPN (see the rear cover) for the more information.
GSPN (Global Service Partner Network)
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
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. Mar. 2009
Printed in Korea
AA82-05755A
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 Overall Disassembly & Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Chapter 4 Troubleshooting
■ 4-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
■ 4-2 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
■ 4-3 Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
Chapter 5 Exploded View & Part List
■ 5-1 PL50B450B1DXZX Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
■ 5-2 PL50B450B1DXZX Service Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Chapter 6 Wiring Diagram
■ 6-1 Overall Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
1. Precaution
To avoid possible damage, electric shocks or exposure to radiation, follow the instructions below with regard to safety,
installation, service and ESD.
1-1 Safety Precautions
Precaution
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 there aren't any gaps between the front and
rear cover that anyone could insert they're fingers into
and receive any electrical shock. These gaps include
ventilation holes, cracks, etc.
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
(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
4. A high 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 re-inserting 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.
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 marked 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.
Samsung Electronics 1-1
Precaution
1-2 Servicing Precautions
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. The service instructions are printed on the cabinet, and
should be followed by any service personnel.
(UL / FCC ¡æ Refer to the Back Cabinet )
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
should be 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).
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
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 ㏁.
1-2 Samsung Electronics
1-3 Static Electricity Precautions
Precaution
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.
A solder 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.
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.
Samsung Electronics 1-3
Precaution
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. A rise 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.
1-4 Samsung Electronics
Product Specification
2. Product Specification
2-1 Product Specification
Features
Block Specification Major IC Remark
RF Digital/Analog (DTV Built In)
PDP Module Samsung SDI U1P Module 42"HD/50"HD New Module
Power
Video
Sound SRS TruSuround HD, Dolby Digital MSD2248, STA335W Optical Output
Cabinet B450 Design
Model PL42B450B1D PL50B450B1D
Screen Size 42 Inches (16:9) 50 Inches (16:9)
Dimensions (WxHxD)
Weight
PC Resolution 1024 x 768 @ 60Hz 1360 x 768 @ 60Hz
Power consumption 250W 350W
Voltage AC 100~240V, 60Hz
ANTENNAinput
Samsung/Dong-yang electro
mechanics SMPS
NTSC 3.58, ATSC
HDMI
Component, PC
Specification
41.5 x 2.9 x 25.7 inches (without stand)
41.5 x 12.4 x 28.3 inches (with stand)
53.1 lbs (without stand)
61.2 lbs (with stand)
ANTAIR IN or CABLE IN
※75Ω
NTSC/VSB/QAM Tuner
KS1411
MSD2248
48.0x 2.9x 29.4 inches (without stand)
48.0 x 12.4 x 31.8 inches (with stand)
69.0 lbs without stand
77.1 lbs with stand
unbalanced
AV1, AV2
COMPONENT1 - 480i/480p/720p/1080i/1080p
COMPONENT2 - 480i/480p/720p/1080i/1080p
VIDEO input
HDMI2(DVI Compatible) - 480p/720p/1080i/1080p
480i can be displayed on HDMI, however it is not contained in EDID data
＊
AUDIO input
Audio Output AUDIO (L/R)
Speaker Output 10W+10W (40dB+40dB)
New Features Anynet+
Samsung Electronics 2-1
HDMI1 : 480p/720p/1080i/1080p
HDMI3(SIDE AV) - 480p/720p/1080i/1080p
COMPONENT1 - 480i/480p/720p/1080i/1080p
COMPONENT2 - 480i/480p/720p/1080i/1080p
PC
AV1, AV2
PC
DVI
Product Specification
■
■
New Features explanation
- Anynet+ : Anynet+ is an AV network system that enables you to control all connected Samsung AV devices with your
Samsung TV's remote.
2-2 Samsung Electronics
2-2 Specifications Analysis
※○: application, X: non-application
Model PL42B450B1D PL50B450B1D PN42A450P1DXZA
Design
Display Type PDP TV PDP TV PDP TV
Built-In Tuner
Resolution 1024 x 768 1365 x 768 1024 x 768
Basic
Picture
Audio
Features
Connections
ETC Speaker/Stand Built-in Speaker Built-in Speaker Built-in Speaker
PDP Module U1P U1P U1P
Screen Size 42" 50" 42"
Picture ratio 16 : 9 16 : 9 16 : 9
Dimensions (WxHxD) 41.5 x 28.5 x 12.4 inches 48.4 x 32.0 x 12.4 inches 41.5 x 28.5 x 12.4 inches
Weight 67.24 lbs / 27.8 kg 81.57 lbs / 35 kg 67.24 lbs / 30.5 kg
Brightness 1,500 Cd/m2 1,300 Cd/m2 1,500 Cd/m2
Contrast Ratio 10000:1 10000:1 10000:1
Picture Enhacer X X X
Comb Filter
Equalizer 5 Band 5 Band 5 Band
Auto Volume Control
Surround Sound SRS TruSurround SRS TruSurround SRS TruSurround
Speaker Output 10W + 10W 10W + 10W 10W + 10W
PIP X X X
Double Window X X X
Caption
Still Image X X X
EPG
My Color Control X X X
Energy Saving
Anynet
Antenna 1(Cable or Air) 1(Cable or Air) 1(Cable or Air)
AV Input 2 2 2
S-Video - - -
Component 2 2 2
PC(D-SUB) 1 1 1
DVI X X X
HDMI 3 3 3
Optical 1 1 1
○ ○ ○
○ ○ ○
○ ○ ○
○ ○ ○
○ ○ ○
○ ○ ○
○ ○ ○
Product Specification
Samsung Electronics 2-3
Product Specification
2-3 Accessories
Accessories Item Item code Remark
SuppliedAccessories
Remote Control
Batteries
Power Cord 3903-000144
Owner's Instructions BN68-02033A
Warranty Card
Registration Card
Safety Guide Manual
Cloth-Clean BN63-01798B
Ferrite Core for
Power Cord
BN59-00856A
4301-000103
BN68-00797G
BP68-00515B
AA68-03242L
3301-001305
Sold Separately
Cover-Bottom
Screws (2ea)
HDMI Cable
10 feet
HDMI/DVI cable
10 feet
Component Cables (RCA)
5 feet
BN63-05300X
6003-001621
BN39-00641A
BN39-00643A
BN39-00279A
2-4 Samsung Electronics
Product Specification
Accessories Item Item code Remark
Optical Cable None
Sold Separately
PC Cable
6 feet
PC Audio Cable
6 feet
Antenna Cable
10 feet
BN39-00115A
BN39-00061B
BN39-00333A
Samsung Electronics 2-5
MEMO
2-6 Samsung Electronics
Disassembly & Reassembly
3. Disassembly & Reassembly
3-1 Overall Disassembly & Reassembly
!
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, Y Main
Board, etc. (A spark 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.
<42">
※ Screw Torque
- M3 : 7~9 Kgf/Cm
- M4 : 12 Kgf/Cm
<50">
3-1-1 Separation of ASSY COVER P-REAR 42"/50"
Part Name Description Description Photo
Cover
Rear
① Remove 17 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
② Remove 6 screws. ( )
: PH,+,WSP,S,M4,L35,ZPC(BLK)
③ Remove the rear cover.
!
: Please lay the PDP unit face down on a
soft surface when removing the stand.
Samsung Electronics 3-1
Disassembly & Reassembly
3-1-2 Separation of ASSY PCB MISC-MAIN
Part Name Description Description Photo
Main
Board
① Detach all connectors from the Main
Board.
② Remove 4 screws.
: BH,+,B,M3,L6,ZPC(BLK),SWRCH18A,-
③ Remove the Main Board.
<42">
<50">
3-1-3 Separation of FILTER-EMI AC LINE 42"/ 50"
Part Name Description Description Photo
FILTER-
EMI
AC LINE
① Detach connector from SMPS.
② Remove 2 screw. ( )
: PH,+,WWP,M3,L8,NI PLT
③ Remove 1 screws.( )
: BH,+,S,M4,L10,ZPC(BLK)
④ Separate FILTER-EMI AC LINE from
bracket.
3-2 Samsung Electronics
Disassembly & Reassembly
Samsung Electronics 3-3
3-1-4 Separation of BRACKET-PCB 42"/50"
Part Name Description Description Photo
Bracket
PCB
Remove screw.( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove the BRACKET-PCB.
3-1-5 Separation of ASSY BRACKET 42"/50"
Part Name Description Description Photo
Bracket
Remove 2 screws. ( )
: BH,+,PT,S Tite,M4,L10,ZPC(BLK)
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove Bracket.
3-1-7 Separation of ASSY SPEAKER P 42"/50"
Part Name Description Description Photo
Speaker
Remove 4 screws.( )
: BH,+,WP,B,M4.0,L3,ZPC(BLK),
SWRCH18A
Remove the Speaker.
Disassembly & Reassembly
3-4 Samsung Electronics
3-1-6 Separation of ASSY BRACKET P-WALL
Part Name Description Description Photo
42"
Wall
Bracket
Remove 2 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove 3 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 4 screws. ( )
: BH,+,S,M4,L10,ZPC(BLK)
Remove Wall Bracket.
!
Disassembly & Reassembly
Samsung Electronics 3-5
3-1-8 Separation of SMPS-PDP TV
Part Name Description Description Photo
42"
SMPS
Detach all connectors from the SMPS.
Remove 6 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 6 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the SMPS.
3-1-9 Separation of ASSY PDP MODULE P-LOGIC MAIN BOARD 42"/ 50"
Part Name Description Description Photo
Logic
Board
Detach all connectors from the Logic
Main Board.
Remove 2 screws.
: WSP,PH,+,M3,L8,NI PLT
Remove the Logic Main Board.
!
Disassembly & Reassembly
3-6 Samsung Electronics
3-1-10 Separation of ASSY PDP MODULE P-X MAIN BOARD
Part Name Description Description Photo
42"/50"
Flat able
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.
: Pinch the sides, but then push down in the ribbon, it
should slide out after that.
42"
X-Main
Board
Remove 4 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the X-Main Board.
(Separate the 4 connectors, 2 cables)
50"
X-Main
Board
Remove 7 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the X-Main Board.
(Separate the 5 connectors, 4 cables)
!
Disassembly & Reassembly
Samsung Electronics 3-7
3-1-11 Separation of ASSY PDP MODULE P-Y MAIN BOARD
Part Name Description Description Photo
42"
Detach the scan board connectors from the panel .
Remove connectors from SMPS and logic board.
Remove 9 screws.
50"
Detach the scan board connectors from the panel .
Remove connectors from smps and logic board
Remove 7 screws .
3-1-13 Separation of ASSY PANEL BRACKETS
Part Name Description Description Photo
Panel
Brackets
Remove 7 screws. ( )
: BH,+,B,M4,L3,ZPC(BLK)
Remove the Side Panel Brackets.
3-1-12 Separation of ASSY PDP MODULE P-ADDRESS BUFFER BOARD
Part Name Description Description Photo
42"
Buffer
board
shield
Remove 3 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the buffer board shield.
50"
Buffer
board
shield
Remove 3 screws.
: PH,+,WWP,M3,L8,NI PLT
Remove the buffer board shield.
Disassembly & Reassembly
3-8 Samsung Electronics
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