Sony KLV-26U300A, KLV-32U300A, RM-CA009, RM-GA009, KLV-37U300A Service Manual

SERVICE MANUAL

LCD Colour TV

LAX U CHASSIS

MODEL NAME REMOTE COMMANDER DESTINATION

KLV-26U300A

RM-GA009 E/ME/OCE/SA

KLV-26U300A

RM-CA009 WB

KLV-32U300A

RM-GA009 E/ME/OCE/SA

KLV-32U300A

RM-CA009 WB

ORIGINAL MANUAL ISSUE DATE: 6/2007

REVISION DATE SUBJECT

7/2007 Added KLV-26U300A and KLV-37U300A models.

8/2007 Added Taiwan model.

9-834-174-03

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

MODEL NAME REMOTE COMMANDER DESTINATION

KLV-37U300A

RM-GA009 E/ME/OCE/SA

KLV-37U300A

RM-CA009 WB

SERVICE MANUAL

LCD Colour TV

LAX U CHASSIS

9-834-174-03

KLV-26U300A/32U300A/37U300A RM-GA009

(E/ME/OCE/SA)

MODEL NAME REMOTE COMMANDER DESTINATION

KLV-26U300A

RM-GA009 E/ME/OCE/SA

KLV-26U300A

RM-CA009 WB

KLV-32U300A

RM-GA009 E/ME/OCE/SA

KLV-32U300A

RM-CA009 WB

MODEL NAME REMOTE COMMANDER DESTINATION

KLV-37U300A

RM-GA009 E/ME/OCE/SA

KLV-37U300A

RM-CA009 WB

RM-CA009

(WB)

KLV-26/32/37U300A2

TABLE OF CONTENTS :

SPECIFICATIONS 3

WARNINGS AND CAUTIONS 6

SAFETY-RELATED COMPONENT WARNING 7

SAFETY CHECK-OUT 9

SECTION 1 : DISASSEMBLY 10

SECTION 2 : SERVICE MODE (factory mode) 16

SECTION 3 : ADJUSTMENT 18

3-1. Preparation 18

3-2. Adjust White Balance of "COOL" temperature; 18

3-3. Adjust White Balance of "NEUTRAL" temperature; 18

3-4. Adjust White Balance of "WARM" temperature; 18

3-5. Average Value of W/B 18

SECTION 4 : TIMING CHART 19

SECTION 5 : DIAGRAMS 20

5-1. BOARD Layout/WIRING Layout 20

5-1-1. KLV-26U300A 20

5-1-2. KLV-32U300A 21

5-1-3. KLV-37U300A 22

5-2. Frame Diagram 23

5-3. BLOCK DIAGRAM 24

5-4. SCHEMATIC 25

5-5. PCB Layout 45

SECTION 6 : EXPLODED VIEW & REPLACEMENT PARTS LIST 51

6-1. KLV-26U300A 51

6-1-1. BEZEL AND REAR COVER 51

6-1-2. CHASSIS 52

6-1-3. PARTS LIST 53

(1) Except WB model 53 (2) WB model 54

6-2. KLV-32U300A 55

6-2-1. BEZEL AND REAR COVER 55

6-2-2. CHASSIS 56

6-2-3. PARTS LIST 57

(1) Except WB model 57 (2) WB model 58

6-3. KLV-37U300A 59

6-3-1. BEZEL AND REAR COVER 59

6-3-2. CHASSIS 60

6-3-3. PARTS LIST 61

(1) Except WB model 61 (2) WB model 62

3 KLV-26/32/37U300A

SPECIFICATIONS :

* Dimensions and mass are approximate values.

Design and specifications are subject to change without notice.

Model name KLV-37U300A KLV-32U300A KLV-26U300A

System

Panel System LCD (Liquid Crystal Display) Panel

TV System B/G, I, D/K, M

Colour System PAL, PAL60 (only Video In), SECAM, NTSC4.43 (only Video In), NTSC3.58

Channel Coverage B/G: VHF: E2 to E12/ UHF: E21 to E69/ CATV: S01 to S03, S1 to S41

VHF: 0 to 12, 5A, 9A/ UHF: 28 to 69/ CATV: S01 to S03, S1 to S44

(Australia only)

VHF: 1 to 11/ UHF: 21 to 69/ CATV: S01 to S03, S1 to S41 (New Zealand only)

I: UHF: B21 to B69/ CATV: S01 to S03, S1 to S41

D/K: VHF: C1 to C12, R1 to R12/ UHF: C13 to C57, R21 to R60/

CATV: S01 to S03, S1 to S41, Z1 to Z39

M: VHF: A2 to A13/ UHF: A14 to A79/ CATV: A-8 to A-2, A to W+4, W+6 to W+84

Sound Output 10 W + 10 W

Input/Output jacks

Antenna 75 ohm external terminal

1, 2

S video input (4-pin mini DIN) Y: 1.0 Vp-p, 75 ohms unbalanced/C: 0.286 Vp-p (Burst signal), 75 ohms

1, 2 Video input (phono jacks): 1 Vp-p, 75 ohms unbalanced, sync negative

1, 2 Audio input (phono jacks): 500 mVrms, Impedance: 47 kilohms

1, 2

Component input (phone jacks)

Supported formats: 1080p, 1080i, 720p, 576p, 576i, 480p, 480i

Y: 1 Vp-p, 75 ohms, 0.3V sync negative/P

B/CB

: 0.7 Vp-p, 75 ohms/PR/CR: 0.7

Vp-p, 75 ohms

1, 2 Audio input (phono jacks): 500 mVrms, Impedance: 47 kilohms

Video output (phono jack): 1 Vp-p, 75 ohms unbalanced, sync negative

Audio output (phono jacks): 500 mVrms (100% modulation)

HDMI IN Video: 1080p, 1080i, 720p, 576p, 576i, 480p, 480i

Audio: Two channel linear PCM 32, 44.1 and 48 kHz, 16, 20 and 24 bits

Analogue audio input (phono jacks): 500 mVrms, Impedance: 47 kilohms

PC IN

(RGB)

PC Input (D-sub 15-pin)

G: 0.7 Vp-p, 75 ohms, non Sync on Green/B: 0.7 Vp-p, 75 ohms/

R: 0.7 Vp-p, 75 ohms/HD: 1-5 Vp-p/VD: 1-5 Vp-p

PC IN

PC audio input (minijack): 500 mVrms, Impedance: 47 kilohms

Headphones jack

Power and others

Power requirements 110-240 V AC, 50/60 Hz

Screen Size (inches) 37 32 26

Display Resolutiion 1,366 pixels (horizontal) × 768 lines (vertical)

Power Consumption Indicated on the rear of the TV.

Dimensions

(w × h × d) *

with stand (mm) 918 × 656 × 264 796 × 591 × 214 662 × 515 × 214

without stand (mm) 918 × 609 × 108 796 × 544 × 99 662 × 468 × 95

Mass * with stand (kg) 21.5 17.0 13.5

without stand (kg) 18.5 14.5 11.5

Optional Accessories SU-WL500 (for KLV-37U300A/KLV-32U300A)

SU-WL100 (for KLV-26U300A)

• Except WB model

4 KLV-26/32/37U300A

• WB model

5 KLV-26/32/37U300A

PC input signal Reference chart

This TV’s PC input does not support Sync on Green or Composite Sync. This TV’s PC input does not support interlaced signals. For the best picture quality, it is recommended to use the signals (boldfaced) in the above chart with a 60Hz vertical frequency from a personal computer. In plug and play, signals with a 60Hz vertical frequency will be selected automatically.

Signals

Horizontal (Pixel)

Vertical (Line)

Horizontal frequency (kHz)

Vertical frequency (kHz)

Standard

VGA 640 480 31.5 60 VGA

640 480 37.5 75 VESA

720 400 31.5 70 VGA-T

SVGA 800 600 37.9 60 VESA Guidelines

800 600 46.9 75 VESA

XGA 1024 768 48.4 60 VESA Guidelines

1024 768 56.5 70 VESA

1024 768 60 75 VESA

WXGA 1280 768 47.4 60 VESA

1280 768 47.8 60 VESA

1360 768 47.7 60 VESA

6 KLV-26/32/37U300A

WARNINGS AND CAUTIONS

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.

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.

SAFETY-RELATED COMPONENT WARNING!!

Replace all components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony.

ATTENTION!!

Ces instructions de service sont à l’usage du personnel de service qualifié 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 qualifié faire ainsi.

Afin 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.

ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!

Remplacer tout les composants par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony.

7 KLV-26/32/37U300A

SAFETY-RELATED COMPONENT WARNING

It is essential that all critical parts be replaced only with the part number specified in the electrical parts list to prevent electric shock, fire, or other hazard.

NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and labor guarantee.

USE CAUTION WHEN HANDLING THE LCD PANEL

When repairing the LCD panel, be sure you are grounded by using a wrist band.

To avoid damaging the LCD panel:

do not press on the panel or frame edge to avoid the risk of electric shock. do not scratch or press on the panel with any sharp objects. do not leave the module in high temperatures or in areas of high humidity for an extended period of time. do not expose the LCD panel to direct sunlight. avoid contact with water. It may cause a short circuit within the module. disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.) always clean the LCD panel with a soft cloth material. use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short. protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).

LEAKAGE CURRENT HOT CHECK CIRCUIT

AC Volt-meter

To Instruments exposed

METALLIC PARTS

1.5 Kohm/10W

Good Earth Ground Such as WATER PIPE, CONDUIT etc.

8 KLV-26/32/37U300A

The circuit boards used in these models have been processed using Lead Free Solder. The servicing of these boards requires special precautions to be taken as outlined below.

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:

Due to the higher 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

9 KLV-26/32/37U300A

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 hardware 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.

LeakageTest

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 0.75V, 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 coldwater 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).

To Exposed Metal Par ts on Set

0.15

Earth Ground

AC Voltmeter (0.75V)

Figure A. Usingan AC voltmeter to check AC leakage.

Figure B. Checking for earth ground.

KLV-26/32/37U300A10

SECTION 1 : DISASSEMBLY

STEP PICTURE DESCRIPTION

Gently place the TV set face down on the table.

KLV-26U300A: Remove 3 screws to release the Tabletop Stand from the unit.

KLV-32U300A: Remove 3 screws to release the Tabletop Stand from the unit.

KLV-37U300A: Remove 4 screws to release the Tabletop Stand from the unit.

Service Position

Stand Removal

KLV-26/32/37U300A11

Rear Cover Removal

Wall Mount Bracket Removal

STEP PICTURE DESCRIPTION

KLV-26U300A: Remove 16 screws to release the rear cover.

KLV-32U300A: Remove 16 screws to release the rear cover.

KLV-37U300A: Remove 16 screws to release the rear cover.

Remove 6 screws to release the Wall Mount Bracket.

KLV-26/32/37U300A12

Cover Sheet Removal

Botton ASSY Removal

H1 Mount Removal

Key Cover and Multi Botton Removal

H2 Mount Removal

STEP PICTURE DESCRIPTION

Remove 1 screw to release the Cover Sheet.

Remove function cable from function board connector.

Bend key cover hooks to release function board.

Dismantle function key form function key cover.

Remove 2 screws and 1 connector to release the H2 Mount.

Multi Button

Function Key Cover

KLV-26/32/37U300A13

H3 Mount Removal

AC Inlet Removal

G Mount Removal

STEP PICTURE DESCRIPTION

Remove 1 screw and 1 connector to release the H3 Mount.

Remove 1 screw and 1 connector to release the AC Inlet.

Remove 6 screws and 3 connectors to release the G Mount.

KLV-26/32/37U300A14

Shield Case Removal

A Mount Removal

Bezel Removal

STEP PICTURE DESCRIPTION

Remove 10 screws to release the Shield Case.

Remove 5 screws and 9 connectors to release the A Mount.

KLV-26U300A: Remove 8 screws to release the Bezel.

KLV-32U300A/ 37U300A: Remove 10 screws to release the Bezel.

KLV-26/32/37U300A15

LCD Panel Removal

STEP PICTURE DESCRIPTION

KLV-26U300A: Remove 8 screws to release the LCD Panel.

KLV-32U300A: Remove 10 screws to release the LCD Panel.

KLV-37U300A: Remove 14 screws to release the LCD Panel.

16 KLV-26/32/37U300A

SECTION 2 : SERVICE MODE (factory mode)

To adjust various set features, use the Remote Commander to put the set into service mode to display the service menu. Input the signal to monitor, please confirm that there is no OSD before enter the service mode.

To exit "service mode", press the MENU button

1) Press “LEFT”button

2) Press “RIGHT” button

3) Press “MUTE” button

4) Press “ENTER” button

5) Press “MUTE” button

6) Press “MENU” button

INPUT SOURCE [ VIDEO1 ] WHITE BALANCE [ Off ] INTERNAL PATTER [ Off ]

COLOR TEMP. [

Neutral

] R GAIN [ 228 ] G GAIN [ 230 ] B GAIN [ 232 ]

R OFFSET [ 125 ] G OFFSET [ 125 ] B OFFSET [ 124 ]

AGING MODE [ Off ] ADC CALIBRATION [ Off ] FACTORY RESET [ Off ]

VGA EDID Prot. [ Off ]

HDMI EDID Prot. [ Off ]

ALL RESET [ Off ]

Recall Data [ Off ]

PANEL VERSION: AUO_32

FW: A, 1 MODEL: KLV-32U300A

Factory Menu

Menu : Save / Exit Menu

It differs according to the model name and inducing.

17 KLV-26/32/37U300A

Before White Balance please press remote control “1” to turn on “Alignment On”, “2” is Alignment off, and AC off on Alignment will auto off, Description of service mode (only for WB adjustment, DO NOT USE other menu)

Component 1

INPUT SOURCE

WHITE BALANCE

COLOR TEMPERTURE

R GAIN

G GAIN

B GAIN

R OFFSET

G OFFSET

B OFFSET

Default is "OFF", when you adjust white balance, change it to "ON"

Color mode change menu (COOL- NEUTRAL- WARM)

White balance adjustment resister, refer to WB adjust procedure

18 KLV-26/32/37U300A

SECTION 3 : ADJUSTMENT

3-1. Preparation

1) Allow approximately 30 minutes for the set to warm up before proceeding with the white balance adjustment.

2) Connect 3 terminal of 480i signal cable (Y/Pb/Pr) from the signal source to monitor “Component 1”

3) Enter "SERVICE MODE". The method to enter "SERVICE MODE" is described in next section.

4) Press remote control “1” to turn on “Alignment On”

5) Change "WHITE BALANCE" from "OFF" to "ON "in SERVICE MENU.

6) Select "VIDEO3" from INPUT SOURCE in SERVICE MENU

7) Set "R", "G", "B", "GAIN" and "R", "G", "B", "Offset" value as same as "3-5. AVERAGE VALUE"

3-2. Adjust White Balance of "COOL" temperature;

1) Select "COOL" from COLOR TEMPERATURE in SERVICE MENU

2) Input 70IRE Full white pattern signal into “Component 1”

3) Adjust "RGB GAIN" in SERVICE MENU if needed

4) Input 30lRE Full white pattern signal into “Component 1”

5) Adjust "RGB OFFSET" in SERVICE MENU if needed

6) Repeat adjustment of 2) to 5) so that White Balance is as same level as good monitor

3-3. Adjust White Balance of "NEUTRAL" temperature;

1) Select "NEUTRAL" from COLOR TEMPERATURE in SERVICE MENU

2) Repeat adjustment as same step of 2) to 5) till White Balance is as same level as good monitor.

3-4. Adjust White Balance of "WARM" temperature;

1) Select "WARM" from COLOR TEMPERATURE in SERVICE MENU

2) Repeat adjustment as same step of 2) to 5) till White Balance is as same level as good monitor.

3) Change "WHITE BALANCE" from "ON" to "OFF" in SERVICE MENU.

3-5. Average Value of W/B

KLV-26U300A (Except WB model):