Sony KLV-40NX520, KLV-32N520 Schematic [en, fr]

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

SERVICE MANUAL

ORIGINAL MANUAL ISSUE DATE: 2/2011

Version Date Subject

1.0 2/2011 Original manual issue.

AZ2EK CHASSIS

Segment: P-2S

LCD Digital Color TV

9-888-406-01

SERVICE MANUAL

LCD Digital Color TV

AZ2EK CHASSIS

Segment: P-2S

9-888-406-01

MODEL LIST

KLV-32NX520 Black RM-GA020 INDIA/VIETNAM
KLV-40NX520 Black RM-GA020 INDIA/VIETNAM

MODEL COLOR COMMANDER DEST.MODEL COLOR COMMANDER DEST.

KLV-32/40NX520(IN/VN)

3

WARNINGS AND CAUTIONS -ENGLISH

CAUTION

These servicing instructions are for use by qualified service personnel only.
To reduce the risk of electric shock, do not perf orm any servicing other than that contained in the operating instructions unless you are qualified to do so.

WARNING!!

An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis.
The chassis of this receiver is directly connected to the ac power line.

CARRYING THE TV

Be sure to follow these guidelines to protect your property and avoid causing serious injury.

• Carry the TV with an adequate number of people; larger size TVs require two or more people.

• Correct hand placement while carrying the TV is very important for safety and to avoid damages.

SAFETY-RELATED COMPONENT WARNING!!

Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony
parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual.
Follow these procedures whenever critical components are replaced or improper operation is suspected.

KLV-32/40NX520(IN/VN)

4

WARNINGS AND CAUTIONS -FRENCH

ATTENTION!!

Ces instructions de service sont à l’usage du personnel de service qualifi é seulement.
Pour prévenir le risque de choc électrique, ne pas faire l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifi é faire ainsi.

WARNING!!

Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est
directement raccordé à l’alimentation du secteur.

POUR TRANSPORTER LE TÉLÉVISEUR

Tenez compte de ce qui suit pendant l’installation du téléviseur :

• Débranchez tous les câbles avant de transporter le téléviseur.

• Transportez le téléviseur avec le nombre de personnes approprié ; un téléviseur de grande taille doit être transporté par au moins deux personnes.

• Lors du transport du téléviseur, l’emplacement des mains est très important pour votre sécurité, ainsi que pour éviter de causer des dommages.

ALERTE!!

Afi n d’eviter tout risque d’electrocution provenant d’un chassis sous tension, un transformateur d’isolement doit etre utilise lors de tout depannage. Le chassis de ce recepteur est
directement raccorde a l’alimentation du secteur.

ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!

Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite du
fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de
composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.

KLV-32/40NX520(IN/VN)

5

USE CAUTION WHEN HANDLING THE LCD PANEL

When repairing the LCD panel, be sure you are grounded by using a wrist band.
When repairing the LCD panel on the wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.

1) Do not press on the panel or frame edge to avoid the risk of electric shock.

2) Do not scratch or press on the panel with any sharp objects.

3) Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.

4) Do not expose the LCD panel to direct sunlight.

5) Avoid contact with water. It may cause a short circuit within the module.

6) Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.)

7) Always clean the LCD panel with a soft cloth material.

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

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

10) It is recommended not to exceed 1 hour of Power-On nor Burn-in period with LCD panel face down condition, in repair activity.

WARNINGS AND CAUTIONS

KLV-32/40NX520(IN/VN)

6

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mounting hardwar e have been replaced. Be absolutely certain that 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 as described below.

8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.

KLV-32/40NX520(IN/VN)

7

Leakage Test

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed
metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’
instructions to use these instructions.

2. A battery-operated AC milliampmeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The
“limit” indication is 0.75 V, so analog meters must have an accurate low voltage scale.
The Simpson’s 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all
battery-operated digital multimeters that have a 2 VAC range are suitable (see Figure A).

How to Find a Good Earth Ground

A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also
at earth ground.
If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance
between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot
side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the
lamp should light at normal brilliance if the screw is at ground potential (see Figure B).

SAFETY CHECK-OUT

KLV-32/40NX520(IN/VN)

8

SELF DIAGNOSIS FUNCTION

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user’s knowledge and reference.
If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these
problems occur.

DIAGNOSTIC TEST INDICATORS

When an error occurs, the STANDBY LED will flash a set number of times to
indicate the possible cause of the problem.

If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .

DISPLAY OF STANDBY LED FLASH COUNT

0.5

0.5
3

STBY LED

Fla sh time

2 MAIN_POWE Main Power Over Voltage Prote ction
3

4 BALANCER Balancer Error
5

6 BACKLI TE Back Light Error (Panel Inve rter )
7

8 - Not used

9 - Not used
10 - Not used
11 - Not used
12 - Not used

Service menu Item

name

(Screen Di splay)

DC_ALERT DC_ALERT

AUDIO_ PORT Audio Abnormal Detection

TCON_ERR T-con Error

PA NEL_POWE Panel Error

TE MP_ERR T h ermal Error

D iagnost ic Item Descr iption

SELF-DIAGNOSTIC SCREEN DISPLAY

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:

[To Bring Up Screen Test]

In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

*

Info TV POWERChannel Volume

KLV-32/40NX520(IN/VN)

5

* : Note that this differs from entering the service mode (volume +)

9

[SELF DIAGNOSTIC SAMPLE SCREEN DISPLAY]

SELF DIAGNOSIS FUNCTION

Item name

SELFCHECK

BACK <<
002MAIN_POWER 000
003AUDIO_PORT 000
003DC_ALERT 000

STBY LED flash time

004BALANCER 000
005TCON_ERR 000
005PANEL_POWE 000
006BACKLITE 000
007TEMP_ERR 000

12345‐67891‐23456

[Home]Exit

Panel operation time by hour
Boot count
Total operation time by hour

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen.
After you have completed the repairs, clear the result display to “0”.

Error count

Clearing the Self Check Diagnostic List

1. Error history and Error count : Press the Channel 8 => Channel 0 .

2. Panel operation time : Press the Channel 7 => Channel 0 .

Exiting the Self-diagnostic scre en

To exit the Self Diagnostic screen, turn off the power to the TV by pressing the POWER button on the remote or the POWER button on the TV.

KLV-32/40NX520(IN/VN)

10

SEC 1. DISASSEMBLY AND PARTS LIST

• Items with no part number and no description are not stocked because they are seldom required for roution service.

• The construction parts of an assembled part are indicated with a collation number in the remark colum.

• Items marked " * " are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

KLV-32/40NX520(IN/VN)

11

1-1. KLV-32NX520

DISASSEMBLY AND PARTS LIST

1-1-1. REAR COVER ASSY AND STAND BLOCK

1-1-2. NECK COVER, NECK AND BASE ASSY

REF. No . PAR T No . DES CRI P TI O N MARK

1 4-274-582-01 REAR COVER (RW32)
2 X-2546-339-1 NECK (M2) ASSY
3 X-2580-825-1 BASE (M7) AS SY

1

4 X-2546-540- 1 COVER (M3) ASSY

3

KLV-32/40NX520(IN/VN)

2

4

12

1-1. KLV-32NX520

DISASSEMBLY AND PARTS LIST

1-1-3. G13 BOARD, A BOARD, SWITCH UNIT AND SIDE BRACKET

10

7

6

5

8

9

11

12

13

14

15

16

1-1-4. SP BRACKET AND SPEAKER

REF. No . PART No . DESCRIPT IO N MARK

5 1-489-627-11 SWITCH UNIT
6 * 1-910-103-51 CONNECTOR ASSY 32 WXGA 3P
7 * 1-910-103-54 CONNECTOR ASSY 32 WXGA 14P
8 * 1-838-983-11 POWER SUPPLY CORD (WITH CORE)

9 1-474-297-22 STATI C CONVERTER (TV)-G13
10 * 1-910-103-34 CONNECTOR ASS Y 32 FFC FHD
11 * 1-910-103-55 CONNECTOR ASS Y 32 WXGA 16P
12 4-267-043-01 UNDE R, COVER (RW32)
13 * 1-910-103-52 CONNECTOR ASS Y 32 WXGA 6P
14 1-857-896-21 MOUNTED PWB A
15 4-266-615-11 BRA CKET, SIDE (PAA) (GW)
16 * 1-910-103-53 CONNECTOR ASS Y 32 WXGA 12P
17 4-267-044-02 BRA CKET, SP L (RW32 )
18 1-858-341-11 LOUDSPEAKER (4X1 0CM)
19 4-267-045-02 BRA CKET, SP R (RW32)

KLV-32/40NX520(IN/VN)

BOTTOM FRAME

17

18

19

13

1-1. KLV-32NX520

1-1-5. PANEL SUPPORT, H BOARD, LCD PANEL AND BEZEL ASSY

20

DISASSEMBLY AND PARTS LIST

REF. No . PART No . DES CRIPT IO N M ARK

20 X-2581-453-1 PANEL, SUPPORT(A) A SSY
21 1-811-377-11 LCD PANEL (A32VC)
22 1-857-898- 11 MOUNTED PWB H
23 A-1817-892-A GLASS ASSY

21

23

KLV-32/40NX520(IN/VN)

22

14

1-2. KLV-40NX520

DISASSEMBLY AND PARTS LIST

1-2-1. REAR COVER ASSY AND STAND BLOCK

1-2-2. NECK COVER, NECK AND BASE ASSY

1

REF. No .

PART No. DESCRIPTION

1 4-274-583-01 REAR COVER (RW40)
2 X-2546-340- 1 NECK (ML2) ASSY
3 X-2580-826-1 BASE (ML7) ASSY
4 X-2546-540- 1 COVER (M3) ASSY

MARK

3

KLV-32/40NX520(IN/VN)

2

4

15

1-2. KLV-40NX520

DISASSEMBLY AND PARTS LIST

1-2-3. SWITCH UNIT, HARNESS AND SIDE BRACKET

7

5

6

8

9

10

12

1-2-4. SP BRACKET AND SPEAKER

REF. No . PART No . DES CRIPT IO N MARK

5 1-489-627-11 SWITCH UNIT
6 * 1-910-103-46 CONNECTOR ASSY 40 FHD 4P
7 * 1-910-103-49 CONNECTOR ASSY 40 FHD 14P
8 * 1-838-984-11 POWER SUPPLY CORD (WI TH CORE)

9 * 1-910-103-50 CONNECTOR ASSY 40 FHD 16P
11 * 1-910-103- 48 CONNECTOR ASSY 40 FHD 12P
12 * 1-910-103- 47 CONNECTOR ASSY 40 FHD 6P
13 4-267-048-02 BRACKET, SP R (RW40)
14 1-858-341-11 LOUDSPEAKER (4X10CM)
15 4-267-047-02 BRACKET, SP L (RW40)

11

KLV-32/40NX520(IN/VN)

BOTTOM FRAME

13

14

15

16

1-2. KLV-40NX520

DISASSEMBLY AND PARTS LIST

1-2-5. PANEL SUPPORT, G14 BOARD, A BOARD, H BOARD,

LCD PANEL AND BEZEL ASSY

16

17

23

18

19

22

REF. No .

20

21

PART No. DESCRIPTION

16 X-2581-453-1 PANEL, SUPPORT(A) ASSY
17 1-474-310-21 STAT IC CONVERTER (TV)-G14
18 * 1-910-103- 26 CONNECTOR ASSY 40 FFC FHD
19 1-857-896- 21 MOUNTED PWB A
20 1-811-329-11 LCD PANEL (S40ESP)
21 4-266-615-01 BRACKET, SIDE (PAA) (GW)
22 1-857-898- 11 MOUNTED PWB H
23 A-1817-893-A GLASS ASSY

MARK

KLV-32/40NX520(IN/VN)

17

DISASSEMBLY AND PARTS LIST

1-3. OTHER PART

1-3-1. MISCELLANEOUS 1-3-2. ACCESSORIES

PART No . DESCRI P T I ON MARK PART No . D ESCRI P T I ON MARK

* 4-269-410-01 CUSHION, UPPER (RW32) (KLV-32NX520) 1-489-460-11 REM O TE COM MA NDER (RM-G A020)
* 4-269-411-01 CUSHION, LOWER (RW32) (KLV-32NX520) 1-822-631-11 PLUG CONVERSION ADAPTOR (INDIA )
* 4-267-938-01 CARTON, INDIV IDUAL (KLV-32NX520) 4-270-477-14 MANUAL, INSTRUCTION

4-270-477-23 MANUAL, INSTRUCTION (VIE TNAM)
* 4-269-412-01 CUSHION, UPPER (RW40) (KLV-40NX520) 4-270-477-73 MANUAL, INSTRUCTIO N (VIET NAM)
* 4-269-413-01 CUSHION, LOWER (RW40) (KLV-40NX520)
* 4-267-939-01 CARTON, INDIV IDUAL (KLV-40NX520)

KLV-32/40NX520(IN/VN)

18

SEC 2. ADJUSTMENT

HOW TO ENTERING SERVICE MODE

1) Turn on the main power switch to place this set in standby mode.

2) Press the buttons on the remote commander as follows, and entering service mode.

3) Service mode display.

Info TV POWERChannel Volume

StatusInformation >>
Selfdiagnosishistory >>
PanelSelection <[ SONY_WXGA_32_2]>
NO_SIGNAL_MUTE <[ Off ]>
TUNINGSYSTEM <[ AUTO ]>
LVDSSpectrum(%o) <[ 20 ]>
LowofHPD <[ 5 ]>

5

ServiceMode

[</>]Set[Home]Exit

KLV-32/40NX520(IN/VN)

19

4) How to use the remote commander.

ADJUSTMENT

Function

Adjustment Item up / down

Data Value up / down

5) After entering service mode, then turn off the power switch.

The flow of control

<Info><5><Vol Up><Power>Service mode on

<Other> / <Power off + on>Service mode off

/
/

KLV-32/40NX520(IN/VN)

20

SEC 3. DIAGRAMS

3-1. BLOCK DIAGRAM

3-1-1. BLOCK

RF

HDMI1
HDMI2

Video1
Comp1

PC

Video2
(Side)

USB

AV_COMP_SEL

OSDA0/OSCL0

Light
Sensor

SAW

Filter

EEPROM

WC

USB Current

Limitter

3.3STBY

Keep

RST

100ms
or more

IC

LED

HBoard

ADCINN/P_DEMOD
TUNER_DATA/CLK
IF_AGC

HDMI_SDA0/SCL0
HDMI_HPD0/1/2
PWR5V_0/1/2
HDMI_CEC

RX0_0/1/2/C
RX1_0/1/2/C

CVBS1
CVBS3
Y0P/PB0P/PR0P/SOY0
Y1P/PB1P/PR1P/SOY1
BP/GP/RP/VSYNC/HSYNC

AIN1_L/R_AADC
AIN2_L/R_AADC
AIN3_L/R_AADC
AIN6_L/R_AADC

USB_DP
USB_DM
USB_PWR_EN0
USB_PWR_ERR

Reset

IR

IR

OIRI

Po

wer

Key

Key

Pad

Key Pad

Demod

HDMI
Contro

HDMI
Reciever

Analog
Video In

Analog
Audio In

USB
Interface

UART

DDR

512Mbit

RA*/RBA*/RDQ
RDQM*

DRAM
Interface

I2C

OSDA0/

OSCL0

OSDA1/

OSCL1

OSDA0
/OSCL0

DDR

512Mbit

Servo ADC

12V_S12V

Temp
Sensor

Flash

512Mbit

PDD*/etc

Nand Flash
Interface

PWM Audio Out

ADIN5_SRV
ADIN4_SRV
ADIN3_SRV
ADIN2_SRV

PA

Key

NEL

_A

Pad

anc

_SE

MP

L

Analog

Video Out

Power

GPIO

Bal

er

Err

12V_SW
Balancer Error
12V_Audio
Audio AMP Error
T-Con Error
5V Det

Error
Detction

Crystal

crystal in
crystal out

CLK/Crystal

LVDS

IIS

SPDIF

PTSI_CLK

GPIO0
GPIO1

OPCTRL0

GPIO2

OPCTRL1
OPCTRL2

GPIO3
GPIO4

HDMI_HPD2
HDMI_SDA2

GPIO5

HDMI_SCL2

GPIO6
GPIO7

EEPROM

128Kbit

OSDA0/OSCL0

Tx even/odd
LVDS_CTRL1
LVDS_CTRL2

VSYNC

AOMCLK

AOBCK

AOLRCK

AODATA0

AL0/AR0_PWMDAC

ASPDIF

AVDD12(1.2V)
AVDD33(3.3V)
VCCK(1.0V)
VCC2IO(1.8V)

PTSI_CLK
PTSI_VALID
PTSI_SYNC
PTSI_D0 ? D7

WS

OSDA0/OSCL0

TCON_RDY

LVDS_SEL(FFC:0, othre:1)

V_Sync

Audio

AMP

RESET_AMP

AMP_MUTE

Buffer

DD & LDO

DDC_LUT0
DDC_LUT1
DDC_LUT2

PANEL_SEL

Mute

POWER ON ENABLE

Co
ntr

Pa

ol

ne
T?
Co

AC OFF DET

LVDS POWR ON

Inverter Dimming

Speaker
Out

Audio
Out

SPDIF

Po
we
r /
Inv
ert
er

KLV-32/40NX520(IN/VN)

21

3-1. BLOCK DIAGRAM

3-1-2. RESET/I2C & UART

DIAGRAMS

3V3_SW

EEPRO

Reset

Flash

512Mbit

WS#

WP

ORESET#

MT5388

USB_PWR_EN

GPIO_7

EN

RESET_AMP

USB

Audio

AMP

MT5388

U0TX
U0RX

D-SUB15

For Debug

TUNER_CLK/TUNER_DATA

HDMI_SCL0/HDMI_SDA0

HDMI_SCL1/HDMI_SDA1

UART

OSDA0/OSCL0

OSDA1/OSCL1

3V3_SW

Audio AMP

5V_TUNER

Tuner

3V3_SW

HDMI1
3V3_SW

HDMI2

Temp

Sensor

I2C

Light

Sensor

T-ConEEPROM

KLV-32/40NX520(IN/VN)

22

3-2. CONNECTOR DIAGRAM

3-2-1. KLV-32NX520

CN6401

DIAGRAMS

T-CON Board

Panel

CN2

CN202

Inverter

KLV-32/40NX520(IN/VN)

CN6402

G13
Power Board

CN8156

CN13

CN17

Main board

CN9101 IR board

Key Pad board

23

3-2-2. KLV-40NX520

CN6401

DIAGRAMS

T-CON Board

Panel

CN2

CN202

Inverter

KLV-32/40NX520(IN/VN)

CN6402

G14
Power Board

CN8156

CN13

CN17

Main board

CN9101 IR board

Key Pad board

24

3-3. CIRCUIT BOARDS LOCATION

KLV-32NX520 KLV-40NX520

DIAGRAMS

G14Board

Switch Unit

KLV-32/40NX520(IN/VN)

G13 Board

A Board

Switch Unit

H Board

A Board

H Board

25

END

9-888-406-01

KLV-32/40NX520(IN/VN)

Sony EMCS Corporation

Tokai TEC Inazawa Site

English

2010BL08-Data

Made in Japan

© 2010. 02

26