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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL
ORIGINAL MANUAL ISSUE DATE: 3/2014
Version Date Subject
1.03/2014 Original manual issue.
1.14/2014 Update P/N [page 13]
Update RMD Model Information
Serial Number Reset (India & RMD Country)
1.29/2014 Correct P/N [page 12]
Chassis Name : RB2TP
Segment Name : MC
LCD Digital Color TV
9-888-153-03
1
MODEL LIST
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MODEL |
COLOR |
COMMANDER |
DEST. |
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MODEL |
COLOR COMMANDER DEST. |
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KLV-22P402B IN5 |
Black |
RM-GA025 |
INDIA |
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KLV-24P412B IN5 |
Black |
RM-GA025 |
INDIA |
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KLV-22P422B IN5 |
Black |
RM-GA025 |
INDIA |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Myanmar] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Cambodia] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Maldives] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Nepal] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Sri Lanka] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Brunei] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Mongolia] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Papua New Guinea] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Fiji] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Vanuatu] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[Bangladesh] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[New Caledonia] |
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KLV-24P412B SP1 |
Black |
RM-GA025 |
RMD[French Polynesia] |
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KLV-22P402B/24P412B/24P422B (IND/RMD) |
2 |
Table of content
Description Page
WARNINGS AND CAUTIONS………………………………..................….4 USE CAUTION WHEN HANDLING THE LCD PANEL……………….…5 SAFETY CHECK-OUT………………………………………………….…….6 SELF DIAGNOSIS FUNCTION…………………………….……………….8 SERVICE POSITION…………………………………………………….…...9 SEC 1. DISASSEMBLY AND PARTS LIST……………………………….10
1-1. KLV-22P402B IN5………………………………………………..…11
1-1-1. BASE STAND………………………………………….............11 1-1-2. REAR COVER ……………………………………… ………..12 1-1-3. POWER BOARD, A BOARD AND SPEAKER..................13 1-1-4. LCD PANEL AND BEZEL……………………………..….…14 1-1-5. MISCELLANEOUS…………………………………………...15
1-2. KLV-24P412B IN5/ KLV-24P412B SP1………………………….16 1-2-1. BASE STAND…………………………………………………..16 1-2-2. REAR COVER..………………………………………………..17 1-2-3. POWER BOARD, A BOARD AND SPEAKER……………18 1-2-4. LCD PANEL AND BEZEL………………………………..….19 1-2-5. MISCELLANEOUS……………………………………………20
1-3. KLV-24P422B IN5………………………………………………….21
1-3-1. BASE STAND…………………………………………………..21
1-3-2. REAR COVER …………………………………………………22
1-3-3. POWER BOARD, A BOARD AND SPEAKER……………23 1-3-4. LCD PANEL AND BEZEL………………………………..….24 1-3-5. MISCELLANEOUS……………………………………………25
1-4. How to disassemble rear cover
[KLV-22P402B IN5/24P412B IN5 /24P422B IN5 /24P412B SP1]…..26
Description |
Page |
1-5. How to disassemble front bezel
[KLV-22P402B IN5 /24P412B IN5 /24P422B IN5/24P412B SP1]…..27 1-6. How to disassemble Deco
[KLV-22P402B IN5/24P412B IN5 /24P422B IN5/24P412B SP1]… .28 1-7. How to disassemble LVDS cable
[KLV-22P402B IN5/KLV-24P412B IN5 /24P422B IN5 /24P412B SP1]...29 1-8. How to disassemble IR Board
[KLV-22P402B IN5/24P412B IN5 /24P422B IN5 /24P412B SP1]……..30 1-9. How to ass’y the LED lens [KLV-22P402B IN5 /24P412B IN5
/24P422B IN5 /24P412B SP1]…………………………..31
1-10. How to assemble the Himeron Countermeasure of panel [KLV-22P402B IN5 /24P412B IN5 /24P422B IN5 /24P412B SP1]… 32
1-10-1. KLV-22P402B IN5…………………………………………..32 1-10-2. KLV-24P412B IN5 /24P422B IN5 /24P412B SP1……….34 SEC 2. ADJUSTMENT……………………………………………………...35 SEC 3. DIAGRAMS AND CHASSIS STRUCTURE……………………..37 3-1. BLOCK DIAGRAM…………………………………………………37 3-2. CONNECTOR DIAGRAM…………………………………………38 3-3. CIRCUIT BOARDS LOCATION…………………………………..39 3-4. Tape location…………………………………………………………40 APPENDIX-1 Trouble analysis flow………………………………………42 APPENDIX-2 Software data update………………………………………43 APPENDIX-3 Operation Time, Boot Count, Panel Operation Time…..45 APPENDIX-4 Reset and Edit Serial Number…………………………….46
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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 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.
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-22P402B/24P412B/24P422B (IND/RMD) |
4 |
WARNINGS AND CAUTIONS
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)Always clean the LCD panel with a soft cloth material.
7)Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
8)Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
9)It is recommended not to exceed 1 hour of Power-On nor Burn-in period with LCD panel face down condition, in repair activity. 10)Disconnect the AC power when replacing the parts.(FFC cable etc.).
KLV-22P402B/24P412B/24P422B (IND/RMD) |
5 |
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.
8.For safety reasons, repairing the Power board and/or Inverter board is prohibited.
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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SAFETY CHECK-OUT
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 60to 100-watt troublelight (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).
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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SELF DIAGNOSIS FUNCTION
This model doesn’t support Self Diagnosis Function.
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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SERVICE POSITION
As for this model, the bottom of rear cover is installed between the stand assy and the panel.
Therefore according to the following procedure when performing adjustment and operation check after the part replacement.
<22/24inch>
1. Remove all screws on the Stand to main unit (three screws)
2. Remove all screws on the Rear Cover to Bezel & Main Board & Bracket (nine screws)
3. After removing rear cover , lie down the main unit to a surface for following test/repair.
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4-537-025-01 |
SCREW, +PSW M4X16 |
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7-685-660-79 |
SCREW +BVTP T3X8 TYPE2 IT-3 |
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7-685-662-79 |
SCREW +BVTP 4X14 TYPE2 IT-3 |
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2-580-592-01 |
SCREW, +PSW M3X8 |
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Attention: This photo is based on Sony criteria for appearing standing the main unit after removing back cover and assembling the stand. But considering mechanical design of T2 models and normal service process, it is not recommended to keep main unit standing by this status for repairing/testing at repair center. Please pay attention for avoiding possible scratch/deformation occurred.
Note: Remove rear cover, then assemble the stand to main unit. This 
will cause the stand with main unit fit closely, scratch or deformation
may occurred easily on the stand or bezel deco.
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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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-22P402B/24P412B/24P422B (IND/RMD) |
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DISASSEMBLY AND PARTS LIST
1-1. KLV-22P402B IN5
1-1-1. BASE STAND
REF. No. |
PART No. |
DESCRIPTION |
MARK |
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1 |
4-534-466-01 |
BASE STAND |
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1 |
4-537-025-01 |
SCREW, +PSW M4X16 |
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KLV-22P402B/24P412B/24P422B (IND/RMD) |
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DISASSEMBLY AND PARTS LIST
1-1. KLV-22P402B IN5
1-1-2. REAR COVER
REF. No. PART No. |
DESCRIPTION |
MARK |
2 |
2 |
2 |
4-534-469-01 |
REAR COVER 22 (T2) |
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3 |
4-534-478-01 |
BRACKET, VESA (T2) |
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7-685-660-79 SCREW +BVTP T3X8 TYPE2 IT-3
7-685-662-79 SCREW +BVTP 4X14 TYPE2 IT-3 
2-580-592-01 SCREW, +PSW M3X8
2 |
3
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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DISASSEMBLY AND PARTS LIST
1-1. KLV-22P402B IN5
1-1-3. POWER BOARD, A BOARD AND SPEAKER
4 |
11 |
13 |
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8 |
10 |
9
6
12 |
5 |
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7
1
8 |
8
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4-679-053-01 |
SCREW +PS3X6 |
6 |
2-580-628-01 |
SCREW +BVTP S3X6 TYPE2 |
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2-580-592-01 |
SCREW +PSW M3X8 |
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KLV-22P402B/24P412B/24P422B (IND/RMD) |
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DISASSEMBLY AND PARTS LIST
1-1. KLV-22P402B IN5
1-1-4. LCD PANEL AND BEZEL
15 |
16 |
17
19
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7-682-247-09 +K 3X6 SCREW +K 3X6 |
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KLV-22P402B/24P412B/24P422B (IND/RMD) |
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DISASSEMBLY AND PARTS LIST
1-1. KLV-22P402B IN5
1-1-5. MISCELLANEOUS
KLV-22P402B/24P412B/24P422B (IND/RMD) |
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