Related Manuals for Sony KV-T21PF1
Summary of Contents for Sony KV-T21PF1
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Page 1: Service Manual
SERVICE MANUAL BG-1S (D) CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-T21PF1 RM-870 India SCC-K67D-A TRINITRON COLOR TV ®... - Page 2 SHIELD, OR CARBON PAINTED ON THE CRT, AFTER THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REMOVING THE ANODE. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. – 2 –...
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Page 3: Table Of Contents
KV-T21PF1 RM-870 TABLE OF CONTENTS Section Title Page Section Title Page 1. GENERAL 5. CIRCUIT ADJUSTMENTS ................ 4 5-1. Adjustment With Commander ......... 18 2. DISASSEMBLY 5-2. Adjustment Method ..........19 2-1. Rear Cover Removal ..........10 5-3. A Board, Adjustment After IC003 2-2. -
Page 4: General
SECTION 1 The operating instructions mentioned here are partial abstracts from the Operating Instr uctions Manual. The page numbers of the Operating GENERAL Instruction Manual remain as in the manual. TV SYSTEM AUTO PROGR TV SYSTEM AUTO PROGR Note) TV SYSTEM is not used for this model. - Page 5 Getting Started Connections Connecting optional equipment You can connect optional audio/video equipment to your TV such as a VCR, multi disc player, camcorder, video game or stereo system. Connecting video equipment using video input jacks to antenna socket Rear of TV Connecting a VHF antenna or a combination VHF/UHF antenna to antenna —...
- Page 6 Presetting channels Presetting channels manually using the Presetting channels automatically Presetting channels manually using the buttons on the TV using the remote commander remote commander + or – Press MANUAL PROGR. SELECT Press SELECT until “TV SYSTEM” appears (This is not for this model). Press PROGR +/–...
- Page 7 Operations If you are not satisfied with the picture Watching the TV Turning off the TV and sound quality To turn off the TV temporarily Press POWER on the remote commander. The You may be able to further improve the picture and STANDBY indicator on the TV lights up.
- Page 8 • The last TV program position or video input just before the TV Using the Child Lock Watching the picture Displaying on-screen information turns into standby mode will appear when the TV is turned on using the Wake Up Timer. •...
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Page 9: Troubleshooting
Additional Information Good picture Adjusting the Adjusting the sound Adjusting the sound and picture settings Troubleshooting Noisy sound Press SELECT until the item you want to picture and picture adjust appears. SELECT / Reduce the TREBLE level or select the “SOFT”... -
Page 10: Disassembly
SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 2-3. SERVICE POSITION A board 2 Two screws (BVTP 4×16) 3 One screw (BVTP 3×16) 1 Two screws (BVTP 4×16) 2-2. A BOARD REMOVAL Lever Lever A board... -
Page 11: Replacement Of Parts
2-4. REPLACEMENT OF PARTS 2-5. DEMAGNETIZATION COIL REMOVAL For replacement of the Multi Button, Light Guide and Power Button, cut the welded portions from them, exchange with the new parts, and fix them with screws (+BVTP) respectively. 2-4-1. REPLACEMENT OF MULTI BUTTON 1 Demagnetization coil 2 Tension spring Two screws... -
Page 12: Picture Tube Removal
2-6. PICTURE TUBE REMOVAL 3 C board 4 Deflection yoke 2 A board 5 Four screws (Tapping screws) 2 Using a thumb press down then pull up the rubber cap firmly in the direction indicated by the arrow b. 1 Anode cap Anode Button Anode button Cushion... -
Page 13: Set-Up Adjustments
KV-T21PF1 SECTION 3 RM-870 SET-UP ADJUSTMENTS • The following adjustments should be made when a complete Perform the adjustments in the following order realignment is required or a new picture tube is installed. 1. Beam Landing • These adjustments should be performed with rated power 2. -
Page 14: Convergence
KV-T21PF1 RM-870 • 3-2. CONVERGENCE Operation of V.STAT magnet. If the V.STAT magnet is moved in the direction of the a and Preparation : b arrows, the red, green and blue points move as shown • Before starting this adjustment, adjust the focus, horizontal size below. - Page 15 KV-T21PF1 RM-870 (2) Dynamic Convergence Adjustment Preparation : • Before starting this adjustment, adjust the horizontal static 3. Move the deflection yoke as shown in the figure below and convergence and the vertical static convergence. optimize the convergence. 1. Slightly loosen the deflection yoke screws.
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Page 16: Focus Adjustment
KV-T21PF1 RM-870 DATA 3-3. FOCUS ADJUSTMENT Adjust FOCUS control on the flyback transformer for the best SERVICE focus. Adjustment Item Item number WRITE MUTING Executes the writing FOCUS SCREEN (NOT USED) FLYBACK TRANSFORMER (T851) Note: Screen VR is not use. -
Page 17: Self Diagnosis Function
KV-T21PF1 SECTION 4 RM-870 SELF DIAGNOSIS FUNCTION If no acknowledgement is returned from a device which is turned "ON", the device has a problem. In this case, one of the LED's responding to the problem device will flicker a defined number of times. -
Page 18: Circuit Adjustments
KV-T21PF1 SECTION 5 RM-870 CIRCUIT ADJUSTMENTS 5-1. ADJUSTMENTS WITH COMMANDER Service adjustments are made with the RM-870 that comes with [1], [4] Raise/lower the service item number this unit. [3], [6] Raise/lower the data [MUTING] Writes Entering service mode Executes the writing... -
Page 19: Adjustment Method
KV-T21PF1 RM-870 5-2. ADJUSTMENT METHOD Item Number 08 Use the same method for Items Number 00-2D. Use [1] and [4] to This explanation uses V-SHIFT as an example. select the adjustment item, use [3] and [6] to adjust, write with 1. - Page 20 KV-T21PF1 RM-870 Adjustment Item Table Item Adjustment Data Initial Standard data Note Device number Item range data 00–3F H SHIFT (TDA8375) 00–3F H SIZE (TDA8375) 00–3F PIN AMPLITUDE (TDA8375) 00–3F CORNER PIN (TDA8375) 00–3F TILT (TDA8375) 00–3F V SLOPE (TDA8375) 00–3F...
- Page 21 KV-T21PF1 RM-870 NOTE • Standard Data. Those are the standard data values written on the microprocessor. Therefore, the data values of the modes are stored respectively in the memory. In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
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Page 22: A Board, Adjustment After Ic003 (Memory) Replacement
KV-T21PF1 RM-870 5-3. A BOARD, ADJUSTMENT AFTER IC003 5-4. PICTURE DISTORTION ADJUSTMENT (MEMORY) REPLACEMENT Item Number 00 – 08 1. Enter to Service Mode. HSF (H SHIFT) 00 HSF (H SHIFT) 2. Press commander buttons 5 and - (Data Initialize), and 2 and - (Data Copy) to initialize the data. -
Page 23: Diagrams 6-1. Block Diagram
KV-T21PF1 KV-T21PF1 SECTION 7 RM-870 RM-870 EXPLODED VIEW NOTE: • • Items with no part number and no Items marked " * " are not stocked since The components identified by description are not stocked because they are seldom required for routine... -
Page 24: Electrical Parts List
KV-T21PF1 RM-870 SECTION 8 The components identified by shading and mark ! are critical for safety. ELECTRICAL PARTS LIST Replace only with part number specified. NOTE: REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK • Items marked " ∗ " are not stocked since RESISTORS •... -
Page 25: Circuit Boards Location
KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C319 1-136-165-00 FILM 0.1MF C608 1-104-332-11 CERAMIC 470PF C320 1-136-165-00 FILM 0.1MF... - Page 26 KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK C1204 1-125-804-51 ELECT 100MF D308 8-719-109-54 DIODE RD2.2ESB2 C1205 1-136-165-00 FILM 0.1MF...
- Page 27 KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK <IC> Q408 8-729-119-78 TRANSISTOR 2SC2785-HFE Q409 8-729-119-76 TRANSISTOR 2SA1175-HFE IC001...
- Page 28 KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK R071 1-220-952-31 METAL 1/2W R335 1-220-969-31 METAL 1/2W R076 1-220-948-31...
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Page 29: Schematic Diagram Of A Board
KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK R623 1-220-948-31 METAL 1/2W R1203 1-220-975-31 METAL 1/2W R624 1-216-446-00... - Page 30 KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK <TRANSFORMER> <IC> T601 ! 1-429-137-11 TRANSFORMER, CONVERTER (SRT) IC201 8-759-090-21...
- Page 31 KV-T21PF1 RM-870 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK D709 8-719-911-19 DIODE 1SS119-25 R733 1-220-948-31 METAL 1/2W D710 8-719-911-19...