Samsung PS43D490A1XZN Schematic

Name: Samsung PS43D490A1XZN
Brand: Samsung
SKU: 8521493
Rating: 4.3 (3 reviews)

4.3 (3)

Plasma TV

Chassis	F83A
Model Code	PS43D490A1XZN

SERVICEMANUAL

Plasma TV

Contents

1. Precaution

2. Product Specification

3. Disassembly & Reassembly

4. Troubleshooting

5. Wiring Diagram

PS43D490A1

Refer to the service manual in the GSPN (see the rear cover) for more information.

Contents

1.	Precaution........................................................................................................................................			1	−	1
	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
2.	Product Specification .........................................................................................................................			2	−	1
	2.1.	Product Feature .......................................................................................................................		2	−	1
	2.2.	Specifications Analysis .............................................................................................................		2	−	3
	2.3.	Accessories ............................................................................................................................		2	−	5
		2.3.1.	Supplied Accessories ...................................................................................................	2	−	5
		2.3.2.	Sold Separately...........................................................................................................	2	−	6
3.	Disassembly & Reassembly ................................................................................................................			3	−	1
	3.1. Overall Disassembly & Reassembly ............................................................................................			3	−	1
	3.2. Method for Disassembly of Function Assy....................................................................................			3	−	5
4.	Troubleshooting................................................................................................................................			4	−	1
	4.1. Checkpoints by Error Mode .......................................................................................................			4	−	1
		4.1.1. First Checklist for Troubleshooting.................................................................................		4	−	1
		4.1.2. Checkpoints by Error Mode...........................................................................................		4	−	2
		4.1.3. Faults and Corrective Actions ........................................................................................		4	−	8
		4.1.4.	Operating Logic LED...................................................................................................	4	− 10
		4.1.5. Adjust Function Key Sensitivity.....................................................................................		4	− 11
		4.1.6. Function Assy Pin Map ................................................................................................		4	− 14
		4.1.7. Adjust SMPS Voltage when change SMPS .......................................................................		4	− 15
	4.2.	Factory Mode Adjustments........................................................................................................		4	− 16
		4.2.1.	Entering Factory Mode.................................................................................................	4	− 16
		4.2.2.	Factory Data...............................................................................................................	4	− 17
	4.3.	Service Adjustment..................................................................................................................		4	− 39
	4.4.	Software Upgrade....................................................................................................................		4	− 42
5.	Wiring Diagram		................................................................................................................................	5	−	1
	5.1.	Overall Wiring ........................................................................................................................		5	−	1
		5.1.1.	Pin Connection ...........................................................................................................	5	−	4

i	Copyright© 1995-2011 SAMSUNG. All rights reserved.

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

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 of a too great magnitude between the PDP module and the cabinet mask, and the improper installation of the rear cabinet.

Errors may occur when the resistance is below 1.0MΩ or over 5.2MΩ. In these cases, make sure that the device is repaired before sending it back to the customer.

3)Check for Electricity Leakage (AC Leakage Test)

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).

Figure 1.1 AC Leakage Test

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 earthed 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 earthed 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.

1-1

1. Precaution

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 regular ones 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 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.

1-2	Copyright© 1995-2011 SAMSUNG. All rights reserved.

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.

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.

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 1MΩ.

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 after-images 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

1-3

1. Precaution

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. 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.

1-4	Copyright© 1995-2011 SAMSUNG. All rights reserved.

1. Precaution

1.4. Installation Precautions

1) For safety reasons a minimum of two people are required to carry this 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.

1-5

2. Product Specification

2.1. Product Feature

■ Features

Block	Specification	Major IC	Remark
RF	Digital/Analog (DTV Built In)
PDP Module	SDI DH MODULE	43” HD	New Module
PDP Module	SDI DH MODULE	51” HD	New Module
		51” HD
Power	SAMSUNG ELECTRO MECHANICS
Power	SMPS DOYANG SMPS
	SMPS DOYANG SMPS
	NTSC 3.58 ATSC
Video	HDMI	MSD 2248
	Component, PC
Sound	SRS TruSuround HD, Dolby Digital	TAS 5715	Optical Output
Cabinet	C490 Design

2-1	Copyright© 1995-2011 SAMSUNG. All rights reserved.

				2. Product Specification
■ Specification

Model		P43D40		P51D40
Dimensions (W x H x D)		39.8 x 27.5 x 12 inches - with stand		46.7 x 30.8 x 12 inches - with stand
Dimensions (W x H x D)		39.8 x 24.5 x 2.2 inches - without stand		46.7 x 27.8 x 2.2 inches - without stand
		39.8 x 24.5 x 2.2 inches - without stand		46.7 x 27.8 x 2.2 inches - without stand
Weight		41.8 lbs - with stand		56.2 lbs - with stand
Weight		35.2 lbs - without stand		49.6 lbs - without stand
		35.2 lbs - without stand		49.6 lbs - without stand
Panel Resolution		1024 x 768		1360 x 768

PC Resolution		1920 (H) x 1080 (V)
Screen Size		43 Inches (16:9)		51 Inches (16:9)
Power Consumption		43 HD: 200W ±10% and Less		51 HD : 280W ±10% and Less
Antenna Input		ANT - AIR / CABLE IN
Antenna Input		75Ω unbalanced
		75Ω unbalanced
			AV
		COMPONENT1 - 480i / 480p / 720p / 1080i / 1080p
		COMPONENT2 - 480i / 480p / 720p / 1080i / 1080p
	W/W		PC
	W/W	HDMI1 – 480p / 720p / 1080i / 1080p
		HDMI1 – 480p / 720p / 1080i / 1080p
		HDMI2 (DVI Compatible) – 480p / 720p / 1080i / 1080p
		HDMI3 (SIDE AV) – 480p / 720p / 1080i / 1080p
Video Input		480i can be displayed on HDMI, however it is not contained in EDID data.

			AV
			AV
		COMPONENT1 - 480i / 480p / 720p / 1080i / 1080p
		SCART - 21P, Sn, BLK
	EU		PC
	EU	HDMI1 – 480p / 720p / 1080i / 1080p
		HDMI1 – 480p / 720p / 1080i / 1080p
		HDMI2 (DVI Compatible) – 480p / 720p / 1080i / 1080p
		HDMI3 (SIDE AV) – 480p / 720p / 1080i / 1080p
		480i can be displayed on HDMI, however it is not contained in EDID data.

			AV
		COMPONENT 1 - 480i / 480p / 720p / 1080i / 1080p
Audio Input		COMPONENT 2 - 480i / 480p / 720p / 1080i / 1080p
			PC
			DVI
Audio Output		AUDIO (L/R)
Speaker Output		10W + 10W (40dB + 40dB)
New Features		3D Built-In

2-2

2. Product Specification

2.2. Specifications Analysis

	Model		P43D40	P51D40	P42C450
	Design

	Display Type		PDP TV	PDP TV	PDP TV
	Built-In Tuner		O	O	O
Basic	Resolution		1024 x 768	1365 x 768	1024 x 768
Basic	PDP Module		DH	DH	U2P
	PDP Module		DH	DH	U2P
	Screen Size		43 inches	51 inches	42 inches
	Picture ratio		16 : 9	16 : 9	16 : 9
	Brightness		1,500 Cd/m2	1,500 Cd/m2	1,500 Cd/m2
Picture	Contrast Ratio		10,000 : 1	10,000 : 1	30,000 : 1
	Picture Enhacer		DNIe (SEMS20)	DNIe (SEMS20)	DNIe
	Equalizer		5 Band	5 Band	5 Band
Audio	Auto Volume Control		O	O	O

	Surround Sound		SRS Theater Sound	SRS Theater Sound	SRS TruSurround HD
	Surround Sound		SRS Theater Sound	SRS Theater Sound	SRS TruSurround HD
	Speaker Output		10W + 10W	10W + 10W	10W + 10W
	PIP		O	O	O
	Double Screen		X	X	X
	Caption		O	O	O
	Still Image		X	X	X
Features	EPG		O	O	O
	My color Control		X	X	X
	Energy Saving		O	O	O
	Screen Burn Protection		O	O	O
	Anynet		X	X	O
	Antenna		1 (Cable/Air)	1 (Cable/Air)	1 (Cable/Air)
	AV Input		1 Input	1 Input	1 Input
	S-Video		X	X	X
	Component	W/W	2 Input	2 Input	2 Input

		EU	1 Input	1 Input	1 Input
		EU	1 Input	1 Input	1 Input

Connections	PC (D-SUB)		1 Input	1 Input	1 Input

	DVI		X	X	X
	DVI		X	X	X

	HDMI		D490 – 3 Input	D490 – 3 Input	4 Input
	HDMI		D450 – 2 Input	D450 – 2 Input	4 Input
			D450 – 2 Input	D450 – 2 Input
	USB		1	1	1
	Sub Woofer		X	X	X
	Optical		1	1	1
Etc.	Speaker/Stand		Built-in Speaker	Built-in Speaker	Built-in Speaker

2-3	Copyright© 1995-2011 SAMSUNG. All rights reserved.

2. Product Specification

TIP

O : Supported, X : Not Supported

NOTE

For the power supply and power consumption, refer to the label attached to the product.

2-4

2. Product Specification

2.3. Accessories

2.3.1. Supplied Accessories

Accessories	Item	Item code	Remark
	Remote Control	AA59-00487A
	Batteries	4301-000103
	Power Cord	3903-000461
			Samsung Service
			Center
	Owner`s	BN68-03498A
	Instructions	BN68-03498A
	Instructions
	Cloth-Clean	BN63-01798B
	Ferrite Core for	3301-002049
	Power Cord	3301-002049
	Power Cord

2-5	Copyright© 1995-2011 SAMSUNG. All rights reserved.

2. Product Specification

2.3.2. Sold Separately

Accessories	Item	Item code	Remark
	RS232 Cable	-
	HDMI	-
	HDMI-DVI	-
	Component	-	Samsung Service Center
	Composite (AV)	-
	Coaxial (RF)	-
	VGA	-

2-6

3. Disassembly & Reassembly

3.1. Overall Disassembly & Reassembly

CAUTION

•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.

1.Place monitor face down on cushioned table. Remove screws from the Stand. Remove stand.

*Rear view of 43"

<43" PDP>

6001–002621 : M4 * L8

3-1	Copyright© 1995-2011 SAMSUNG. All rights reserved.

3. Disassembly & Reassembly

* Rear view of 51"

2. Remove the screws of rear-cover.

* Rear view of 43"

<43" PDP>

<51" PDP>

6003–001782 : M4 * L12

6003–000337 : M4 * L10

* Rear view of 51"

<51" PDP>

6001–002621 : M4 * L8

<51" PDP>

6003–001782 : M4 * L12

6003–000337 : M4 * L10

3-2

3. Disassembly & Reassembly

3.Lift up and remove the rear-cover.

*Rear view of 43"

<43" PDP>

* Rear view of 51"

<51" PDP>

4. Remove the screws of main board.

CAUTION

Disconnect all connectors prior to removing boards.

6001–002606 : M3 * L10

5.Remove the screws of SMPS. Remove the SMPS.

CAUTION

Align board under tab when re-installing.

6001–002606 : M3 * L10

6003–001439 : M4 * L8

6. Remove the speakers. (R/L)

3-3	Copyright© 1995-2011 SAMSUNG. All rights reserved.

3. Disassembly & Reassembly

7. Remove the Cover Bottom.

6003–001782 : M4 * L12

6003–000337 : M4 * L10

10. Remove the screws of the front-cover.

* Rear view of 43"

8. Remove the screw of Bluetooth Module.

NOTE

PD49X Series Only.

<43" PDP>

6003–001782 : M4 * L12

* Rear view of 51"

6001–002606 : M3 * L10

9.Remove the screws of Bracket Stand Link. Lift up the Stand Bracket Stand Link.

<51" PDP>

6003–001782 : M4 * L12

3-4

3. Disassembly & Reassembly

3.2. Method for Disassembly of Function Assy

1. Put up the upper Locking, Use screwdriver.

3. Remove Locking.

2. Put up the lower Locking, Use screwdriver.	4. Detach the Function PBA.

CAUTION

Disconnect all connectors prior to removing boards.

3-5	Copyright© 1995-2011 SAMSUNG. All rights reserved.

4. Troubleshooting

4.1. Checkpoints by Error Mode

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)How to distinguish if the problem is caused by Main board or Logic Board.

•No Video : If the problem is No Video but Logic Board is on and Indication LED is blinking repeatedly and faster than normal booting, replace the T-Con board.

•Distorted Picture : Check the inner patterns.

Inner pattern	Picture	Problem
OK	NG	Main board

NG	NG	Main or LVDS cable or Logic Board or Panel.

•How to check inner pattern?

a.Factory mode (mute → 1 → 8 → 2 → Power on when TV is in ‘stand - by mode’ )

b.Move to SVC menu.

c.Move to Test Pattern.

d.Check inner patterns.

4-1

4. Troubleshooting

4.1.2. Checkpoints by Error Mode

■ No Power

	• The LEDs on the front panel do not work when connecting the power cord.
Symptom	•	The SMPS relay does not work when connecting the power cord.
	•	The unit appears to be dead.

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:

Major Checklist	•	Check the internal cable connection status inside the unit.
	• Check the fuses of each part.
	• Check the output voltages of the SMPS.
	•	Replace the Main Board.

Fuse

CN801

CN201

Diagnostics		<43" PDP>

<51" PDP>

4-2	Copyright© 1995-2011 SAMSUNG. All rights reserved.

4. Troubleshooting

CAUTION

Make sure to disconnect the power before working on the SMPS board.

4-3

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