Sony KLV-26NX400, KLV-32NX400, KLV-32NX500, KLV-40NX500 Service manual

HISTORY

Model Name: KLV-26/32NX400

KLV-32/40NX500

		SERVICE MANUAL
Click on Page Number to display details of change
Date	Part Number	Description of Revisions		Version
2010.06	9-883-489-01	Original Manual		1.0
2010.08	9-883-489-02	LCD Panel Part Number Update (P18)		2.0
		BAA Board Part Number Update (P18)
2010.08	9-883-489-03	Addition of Panel Support Part Number (P17, 18,		3.0
		19)

SERVICE MANUAL

AZ1-A(5-0) CHASSIS

MODEL

DEST MODEL

DEST

KLV-26NX400 KLV-32NX400

(black / silver)	RUSS
(black / silver)	RUSS

KLV-32NX500 KLV-40NX500

RUSS

RUSS

RM-GA018

- -

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
				RM-GA018
			TABLE OF CONTENTS
	Section Title				Page		Section Title			Page
1.		SAFETY NOTES					5.	DIAGRAMS
		1-1. Caution Handling of LCD Panel .....................................		3				5-1. Block Diagram ...............................................................			11
		1-2. Safety Check Out .............................................................		3				5-1-1.	KLV-32,40 NX500 .............................................		11
		1-3. Leakage Test ....................................................................		3				5-1-2.	KLV-26,32 NX400(S/B),
		1-4. WARNING ! ....................................................................		3					26,32 NX400(S/B)/S .........................................		12
		1-5. Lead Free Information .....................................................		4				5-2. Wire Dressing and Connector Diagram .......................			13
								5-2-1.	KLV-26 NX400(S/B), NX400(S/B)/S ...............		13
								5-2-2. KLV-32 NX400(S/B),NX400(S/B)/S, NX500 ..			14
2.		SELF DIAGNOSTIC FUNCTION						5-2-3. KLV-40NX500 ...................................................			15
		2-1. Overview of Control Buttons ..........................................		5				5-3. Circuit Board Location ..................................................			16
		2-2. LED Display Specification ..............................................		5				5-3-1.	KLV-26 NX400(S/B), NX400(S/B)/S ...............		16
		2-3. LED Display Control .......................................................		5				5-3-2.	KLV-32 NX400(S/B),NX400(S/B)/S, NX500 ..		16
		2-4. LED Pattern .....................................................................		5				5-3-3. KLV-40NX500 ...................................................			16
		2-5. Standby LED Error Display and Board
		Replacement Order ..........................................................		6
		2-6. Triage Chart .....................................................................		7			6.	DISASSEMBLY, EXPLODED VIEWS AND
								OTHER PARTS
								6-1. Disassembly & Exploded Views ...................................			17
3.		TROUBLE SHOOTING						6-1-1. KLV-26 NX400(S/B), NX400(S/B)/S ................			17
		3-1. Flowchart .........................................................................		8				6-1-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500 ..			18
		3-1-1. No Power .......................................................................		8				6-1-3. KLV-40NX500 ....................................................			19
		3-1-2. Video Problem ...............................................................		9				6-2. Other Parts .....................................................................			20
		3-1-3. Audio Problem ..............................................................		9				6-2-1. KLV-26 NX400(S/B), NX400(S/B)/S ................			20
								6-2-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500 ..			20
								6-2-3. KLV-40NX500 ....................................................			21
4.		SERVICE ADJUSTMENTS
		4-1. Accessing Self Diagnostic Menu ..................................		10
		4-2. Accessing Service Mode ...............................................		10				OPERATING INSTRUCTIONS
		4-3. GAISOU Adjustment(For Board Replacement) ...........		10

– 2 –

		KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
	SECTION 1			RM-GA018
	SAFETY NOTES
1-1. Caution Handling of LCD Panel		1-3. Leakage Test
When installing the LCD Panel, make sure you are grounded		The AC leakage from any exposed metal part to earth
with a wrist band.		ground and from all exposed metal parts to any exposed
When installing the LCD Panel on the wall, the panel must be		metal part having a return to chassis must not exceed 0.5mA
secured using the 4 mounting holes on the rear cover.		(500 microamperes). Leakage current can be measured by
1)	Do not press the panel or frame edge to avoid the risk of	any one of the three methods:-
electric shock.		1. A commercial leakage tester such as the SIMPSON 229 or
2)	Do not scratch or press on the panel with any sharp	RCA WT-540A. Follow the manufacturers instructions to use
objects.		those instructions.
3)	Do not leave the module in high temperature or in areas of	2. A battery-operated AC milliampmeter. The DATA
high humidity for an extended period of time.		PRECISION 245 digital multimeter is suitable for this job.
4)	Do not expose the LCD panel to direct sunlight.	3. Measuring the voltage drop across a resistor by means of
5)	Avoid contact with water. It may cause short circuit within	a VOM or battery operated AC voltmeter. The 'limit' indication
the module.		is 0.75V so analog meters must have an accurate low voltage
6)	Disconnect the AC Power when replacing the backlight	scale. The SIMPSON'S 250 and SANWA SH-63TRD are
(CCFL) or inverter circuit. (High voltage occurs at the inverter		examples of passive VOMs that are suitable. Nearly all battery
circuit at 650Vrms)		operated digital multimeters that have a 2 VAC range are
7)	Always clean the LCD panel with a soft cloth material.	suitable. (see Figure 1.)

8)Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short circuit.

9)Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).

10)During the repair, DO NOT leave the Power On

for more than 1 hour while the TV is face down on a cloth.

		> 1 hour		Figure 1. AC voltmeter to check AC leakage
				1-4. WARNING !
	1-2. Safety Check-Out
				SAFETY-RELATED COMPONENT WARNING!
	After correcting the original service problem, perform the
				COMPONENTS IDENTIFIED BY SHADING AND MARK !
	following safety checks before releasing the set to the
				ON THE EXPLODED VIEWS ARE CRITICAL FOR SAFE
	customer:-
				OPERATION. REPLACE THESE COMPONENTS WITH
	1) Check the area of your repair for unsoldered or poorly
				SONY PARTS WHOSE PART NUMBERS APPEAR AS
	soldered connections. Check the entire board surface for
				SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
	solder splashes and bridges.
				PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
	2) Check the interboard wiring to ensure that no wires are
				CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN
	"pinched" or contact high-wattage resistors.
				THIS MANUAL. FOLLOW THESE PROCEDURES
	3)Check all control knobs, shields, covers, ground straps and
				WHENEVER CRITICAL COMPONENTS ARE REPLACED
	mounting hardware have been replaced. Be absolutely certain
				OR IMPROPER OPERATION IS SUSPECTED.
	you have replaced all the insulators.
	4) Look for unauthorized replacement parts, particularly
	transistors that were installed during a previous repair. Point
	them out to the customer and recommend their replacement.
	5) Look for parts which, though functioning show obvious
	signs of deterioration. Point them out to the customer and
	recommend their replacement.
	6) Check the line cords for cracks and abrasion.
	Recommend the replacement of any such line cord to the
	customer.
	7) Check the antenna terminals, metal trim, "metallized"
	knobs, screws and all other exposed metal parts for AC
	leakage. Check leakage test as described next.
	8) Live chassis can cause electric shock as its
	connected to the AC power line. Therefore, use
	isolation transformer and gloves when changing parts
	or removing plug. Please remember high voltage is
	there during servicing.
	9) To follow safety after servicing, please make sure
	the removed screws, parts and wires are as original
	condition.

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

1-5. Lead Free Information

The circuit boards used in these models have been processed using Lead Free Solder. The boards are identified by the LF logo located close to the board designation.

Figure 2: LF logo

Figure 3: LF logo on circuit board

The servicing of these boards requires special precautions. It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is available under the following part numbers:-

Part number	Diameter	Remarks
7-640-005-19	0.3mm	0.25Kg
7-640-005-20	0.4mm	0.50Kg
7-640-005-21	0.5mm	0.50Kg
7-640-005-22	0.6mm	0.25Kg
7-640-005-23	0.8mm	1.00Kg
7-640-005-24	1.0mm	1.00Kg
7-640-005-25	1.2mm	1.00Kg
7-640-005-26	1.6mm	1.00Kg

Due to high melting point of Lead Free Solder, the soldering iron tip temperature needs to be set to 370 degrees centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.

For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com

– 4 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

SECTION 2

SELF DIAGNOSTIC FUNCTION

2-1. Overview of Control Buttons		2-4. LED Pattern
		When safety shutdown occurs, Standby LED display reports the
		cause by using the lightning patterns as indicated below.
	Power
PROG
	Programme	3.0 sec	3.0 sec
		0.5 sec
		0.5 sec
	Volume

Input select/

Example:

The figure above shows LED display when

Enter

Menu

SHUTDOWN is caused by Balancer Error. It repeats

flashing for a specified number of times in 0.5sec/

cycle and has a 3 seconds interval of lighting off.

Please note that a 3 seconds interval of lighting off

is fixed regardless of abnormal state types.

Remote	Picture Off/	Standby	Power
Sensor	Timer indicator	indicator	indicator

	2-2. LED Display Specification
	LEDType	Description	Remark
	POWER	Green: LED	Green lights at power ON.
	STANDBY	Red:One LED	Red lights during standby.
	Timer	Orange	Orange lights
		:One LED	duringTimer activation.
	2-3. LED Display Control
	Status	Display		Remark
		Power LED	Standby LED
	POWER ON	Green lights	OFF	Microcomputer is
				in a normal state.
	STANDBY	OFF	Red lights	Microcomputer is
				in a sleep state.
	Failure	OFF	Red flashes	Classify the trouble
				causes by the no.
				of red blinking.

– 5 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

2-5. Standby LED Error Display and Board Replacement Order

Perform below countermeasures according to Standby LED blinking times.

Blinking times	Error		Countermeasure
		(Replace either/all according to sequence)
2	Main Power Error	1) Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
		2)	BAA board.
3	DC_ALERT 1/ Audio Error/	1) BAA board.
	Motionflow Error	2) Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
		3) TCON.
		4) Speaker.
4	Balancer Error	1) Inverter board.
		2)	Panel.
		3)	Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
		4)	BAA board.
5	T-CON Error / Panel ID NVM Error	1) T-CON.
		2)	BAA board.
		3)	LVDS Cable.
		4)	Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
6	Backlight Error	1) Inverter board
		2)	Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
		3)	BAA board.
7	Temp. Error	1) BAA board.
		2)	Power Unit(26”), G2LE Unit(32”),
			G2HE Unit(40”) board.
Note:-
1: Each of the above blinking repeats 3 seconds.
2. Countermeasure is list out by priority.

– 6 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

2-6. Triage Chart

	NoAudio			BAAboard
	NoHDMI			BAAboard
distoredormissing	NoTuner TunerOK	VideoOK Video1-3	Bad	BAAboard BAAboard
Video	NoVideo	BLOK	NoOSD	BAAboard
	NoVideo	NoBL		BAAboard
	NoVideo	BLOK	OSDOK	BAAboard
		NoPower		NoPower
		7Blinks		Temperature
set)		6Blinks		ID Inverter
Symptom(dead		4Blinks 5Blinks		Balancer TCON,Panel
		3Blinks		BAAboard
		2Blinks		NoPower
	Reference			BAAboard H2LRboard H2LS HLR3board SW1board PowerUnit(26") G2LEUnit(32") G2HEUnit(40") T-conboard Speakerunit RFmodule Panelmodule FFCcable Jointconnector Problem

Few possibility

Doubtful part

– 7 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

SECTION 3

TROUBLESHOOTING

3.1 FLOWCHART

3-1-1. NO POWER

No power

110V

Destination

No

88-132Vac

AC Cable

Yes

No

3.3V_DC

C16200 Pin3 on BAA board

Yes

3.3V_DC

C16200 Pin3 on BAA board

12.5V_DC

C16200 Pin10 on BAA board

Yes

BAA Board

220V-240V

No

176-264Vac

Yes

Power Board

No standby3.3V

No	Power Board
	No REG12V

– 8 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

3-1-2. VIDEO PROBLEM

Video

Problem

All inputs

No

HDMI

No

RF/Analog

No

Digital

No

BAA

Input

Input

Board

have

Problem?

Problem?

Problem?

problem?

Yes

Yes

Yes

BAA

BAA

BAA

Board

Board

Board

Backlight

Yes

BAA

Turn on?

Board

No

Check LVDS harness

connection

between BAA board or

Panel or Power board

3-1-3. AUDIO PROBLEM

Only	No	HDMI	No	RF/ Analog		No	Digital	No	BAA
					Input		Input
Speaker		Problem?							Board
					Problem?		Problem?
out?
Yes
		BAA			BAA		BAA
		Board			Board		Board

UI of

Audio Setting Yes correct? Volume,

TV Speaker

Check

No Speaker

BAA board

Set correctly or reset by menu

– 9 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

SECTION 4

SERVICE ADJUSTMENT

4-1. Accessing Self Diagnostic Menu

1.While TV on standby mode, press the following sequence on the Remote commander.

< Display--> <5>--> <Vol Down>--> <Power>

	Self Check												indicates no. of times an error
	002				Main Power						001
													was detected.
	003				Dc_Alert							000	0 indicates no error was detected
	003				Aud_Prot							000
	003				MotionFlow							000
	004				Balancer_Error							000
	005				T-CON Error
	005				Panel ID NVM Error							000
	006				Backlight Error							000
	007				Temp_Error							000
			00027					00009					Diagnostic Menu Sample
	00009
									Total Panel Hours
									(max 65535)
Total Hours
of Operation						Boot Count
(max 65535)						(max 65535)

2. To Reset Error Count & Error History Press < 8 > --> < 0 > key

3. To Reset Panel Operation Time Press < 7 > --> < 0 > key

4. To exit, turn the power off using Remote.

4-2. Accessing Service Mode

1.While TV on standby mode, press the following sequence on the Remote commander.

< Display--> <5>--> <Vol Up>--> <Power>

Tuning System	<[Auto]>
No_Signal_Mute	<[Off]>
Serial Number Edit
Self Diagnosis History >>
LVDS Spectrum (%)	<[10]>
Low of HPD	<[5]>
VCR1	<[off]>
GAISOU	<[0]>

Service Mode Menu Sample

2.Use the r or R button to select the item you want to refer and press for details.

Example Status information

4-3. GAISOU Adjustment (For Board Replacement)

1)When new board is replaced, please confirm the color ornamental of the TV set.

2)While TV on standby mode, press the following sequence on the Remote commander.

<Display> p <5> p <Vol Up> p <Power>

Tuning System		<[Auto]>
Chassis	Service
No_Signal_Mute	Model	<[Off]>
Serial Number Edit
000
Self Diagnosis History >>
002	Gaisou		00
LVDS Spectrum (%)		<[10]>
Low of HPD		<[5]>
VCR1		<[off]>
GAISOU Menu		Sample
GAISOU		<[0]>

Service Mode Menu Sample

3) Use the r or R button to select the GAISOU item.

Service Mode
Status Information >>
Test Reset	<[Off]>
Tuning System	<[Auto]>
No_Signal_Mute	<[Off]>
Serial Number Edit
Self Diagnosis History >>
LVDS Spectrum (%)	<[10]>
Low of HPD	<[5]>
VCR1	<[off]>
GAISOU	<[0]>

4) The color variation table of each TV set as below:-

Case	Color	Model	Panel ID		Area
Table	Type	Name	Resolution	Inch Size	ID
00	Default	5-2	WXGA/FHD	40, 32,26, 22	ALL
01	Glossy Gun Metallic (back print)	3a-2	FHD	32,40,46	GA
02	Glossy Silver (back print)	3a-2	WXGA	22,26,32	GA
03	Red	3a-2	FHD	32	GA
04	Blue	3a-2	FHD	32	GA
05	Matt Gun Metallic	3a-2	FHD	32,40,46	CH
06	Flat Gun Metallic Hairline	3a-1, 3a-0.5	HFR/ FHD	32,40,46,55	ALL
07	Silver	5-0	FHD	32,40	ALL
08	Black	5-0	WXGA	26,32	ALL

5)For example if color is Red than should select 03 in the service mode of the TV set.

Service Mode
Status Information >>				Main Micro
Test Reset	<[Off]>			SW Version	TM0.341.012
Tuning System	<[Auto]>			NVM Version	TD0.341
No_Signal_Mute	<[Off]>			Boot Version	TB0.341
Serial Number Edit				Panel Version	MT0000.000.0030.LT
Self Diagnosis History >>				Flash PQ Version
LVDS Spectrum (%)	<[10]>			AQ Version	AQ0.003
Low of HPD	<[5]>

– 10 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

SECTION 5

DIAGRAMS

PANEL

8bit

(FHD)

CCFL ConventionalINVERTER

TPA3110D2

HP

STBY UART0

ECS

Hotel UART

OddChannel8bit

EveChannel8bit

Memory

Memory

DDR2 32Mx16bits

PWM

LPF

NJM2779

AMP

SIRCS LED

SIRCS LED JTAG

NAND FLASH 64MByte

PDD0~7

16Bit

16Bit

LPF

PWM

Lineout

ChLVDS

I/F

outx2ch

Dual

Memory

Audio

Tuner

TuI2C

IFIn

MT5388

BGA

32Bit

ControI/O

Temp Sensor

SAW (38Mz)

CVBS Outx2ch

Audio

TMDS

M I2C

RGB Main Ambient NVM sensor 16KByte

Out

CVBS

YUV

RGB

In x 4ch

In x 7ch

In x 2ch

In x 1ch

In x 3ch

DDC1

CVBS

SWCVBSIn

SW

In L/R

RGB HV

TMDS0

DDC0

TMDS2

DDC2

HDMITMDS1

SW

Video1/MonL/R

CVBS2

Video2L/R

Yuv1/CVBS3

Comp1/Video3L/R

PC/HDMI3L/R

CVBS1/Mon

PC EDID

HDMI1

EDID

HDMI2 EDID

TMDSB

TMDSA

DDCA

D+/D-

1.-KLV-32,40NX500

DDCB

BLOCKDIAGRAM

Video1 MONOut

Video1/Mon L/R

Video2

Video2

L/R

Component1 /Video3

Comp1/Video3

L/R

PC

DCC

PC/HDMI2 L/R

HDMI1

HDMI2

HDMI3

HDMI3 EDID

HDMI4

HDMI4 EDID

USB1

5-1.

5-1-

– 11 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

PANEL 8bit

(WXGA)

CCFL ConventionalINVERTER

TPA3110D2

HP

STBY UART0

ECS

Hotel UART

SingleChannel8bit

Memory

DDR2 32Mbx16bits

NJM2779Lineout

AMP

JTAG

64MByte

PDD0~7

PWM

LPF

LED

LED

NAND FLASH

16Bit

LPF

PWM

SIRCS

SIRCS

ChLVDS

I/F

outx2ch

TuI2C

Dual

Memory

Audio

MT5388 BGA

Tuner

SAW (38Mz)

IF In

ControI/O

PANEL 12C

Temp Sensor

CVBS Outx2ch

M I2C

Main NVM 16KByte

Out

CVBS

Audio

YUV

RGB

TMDS

RGB Ambient sensor

In x 4ch

In x 7ch

In x 2ch

In x 1ch

In x 3ch

DDC1

NX400(S/B)/S

CVBS

SWCVBS1/MonCVBSIn

SW

In

L/R Comp1/Video3L/R

TMDS1

Video1/MonL/R

CVBS2

Video2L/R

Yuv1/CVBS3

RGB

HV

PC/HDMI3L/R

TMDS0

DDC0

TMDS2

DDC2

HDMI SW

PC

HDMI2

EDID

TMDSB

TMDSA

USB1 D+/D-

26,32NX400(S/B),26,32

Video1 MONOut

Video1/Mon L/R

Video2

Video2 L/R

Component1 /Video3

Comp1/Video3 L/R

PC

DCC

EDID

PC/HDMI2 L/R

HDMI1

HDMI1

EDID

HDMI2

HDMI3

DDCB

HDMI4

DDCA

2.KLV-

HDMI3

EDID

HDMI4

EDID

5-1-

– 12 –

5-2. WIRE DRESSING AND CONNECTOR DIAGRAM 5-2-1. KLV-26 NX400(S/B), NX400(S/B)/S

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

CAUTION :

1.Do not overpull the wires during dressing --> avoid disconnection of wires.

2.Make sure wires are kept away from sharp edges, heatsinks & other high-temperature parts.

Tape

CN1/

CN100

(3)

Unit

Switch

INVERTER

CNxxxx (14)

		TCON
		(30)
CN6202	(14)	CN6201	(15)
				BAA	(4)
			CN6200		CN4000
		Power Unit		(10)
			CN9701	(30)
CN6000
	(2)
					CN5600
					(30)
AC Power
				CN100/CN001	HLR
				(10/12)

Speaker R	Speaker L

– 13 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

5-2-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500

WXGA	FHD
(KLV-32 NX400(S/B), NX400(S/B)/S)	(KLV-32NX500)

				TCON	TCON
		CN6403		(4)	(30/51)
		(6)
	CN6402	(14)	CN6401	(15)
INVERTER	CNxxxx (14)	G2LE			CN6200	BAA	CN4000
							(4)
						(10)
CN1/					CN9700/9701
CN100						(51/30)
(3)
		CN6101	(3)
Switch Unit							CN5600
							(30)
		AC Power
						CN100/CN001	HLR
						(10/12)
	Speaker R						Speaker L
					– 14 –

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

5-2-3. KLV-40NX500

(Except KLV-40NX500(South Africa)

(KLV-40NX500(South Africa)

					TCON	TCON
			CN6403		(4)	(51)
			(6)
	CN6402	(14)	CN6401		(15)
INVERTER	CNxxxx (14)		G2HE			CN6200	BAA	CN4000
								(4)
							(10)
CN1/						CN9700	(51)
CN100
(3)
			CN6101
				(3)
								CN5600
Switch Unit								(30)
			AC Power
							CN100/CN001	HLR
							(10/12)
Speaker R/ Speaker box R							Speaker L/ Speaker box L

– 15 –