Sony Trinitron KV-28WS4A Service Manual
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Sony Trinitron KV-28WS4A Service Manual

Sony Trinitron KV-28WS4A Service Manual

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Summary of Contents for Sony Trinitron KV-28WS4A

  • Page 2 KV-29C3 SPECIFICATIONS Picture Tube Hi-Black Trinitron Approx. 55 cm (21 inches) (Approx. 51 cm picture measured diagonally) 100˚ deflection Rear/Front Terminals [REAR] 21-pin Euro connector (CENELEC standard) Including audio/video input, RGB input [FRONT] 2 Video input - phono jack Audio inputs - phono jacks Headphone jack - stereo minijack Sound output 14Wx2 (music power)
  • Page 3 KV-29C3 [RM-862] Remote control system Infrared control Power requirements 3V dc (2 batteries) R6 (size AA) Dimensions Approx. 210x56x24 mm (w/h/d) Weight Approx. 110g (Not including battery) Design and specifications are subject to change without notice. l i o y t i a i l WARNING ( KV-21M1L/21T1L/21M1U/21T1U only )
  • Page 4 KV-29C3 21 pin connector ( ) t f ) t f ± v i t ± v i t ± v i t 1 ± v i t 1 ± v i t 1 ± v i t l i e Connected Not Connected (Open) * at 20Hz - 20kHz...

  • Page 5: Table Of Contents

    DU FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. COMPOSANTS SONY DONT LE NUMÉRO DE PIÉCE EST INDIQUÉ DANS LE PRÉSENT MANUEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 17: Disassembly

    SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 2-2. CHASSIS ASSY REMOVAL Five screws Rear Cover (BVTP 4x16) 2-4. G BOARD REMOVAL 2-3. SERIVCE POSITION Push the claw of the bracket in the direction of the arrow and remove.

  • Page 18: A Board Removal

    2-5. A BOARD REMOVAL 2-6. PICUTRE TUBE REMOVAL Push the claw of the bracket in the direction of the arrow and remove. Degaussing coil Spring tension C board Speaker Box Neck assy Chassis Four tapping screws (M) • REMOVAL OF ANODE-CAP Deflection Yoke Note: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or...

  • Page 19: Removal And Replacement Of

    REMOVAL AND REPLACEMENT OF THE MAIN-BRACKET For safety reasons, on no account should the plates be removed BOTTOM PLATES. and not refitted after servicing. (1) REMOVING THE PLATES (2) REFITTING THE PLATES Because the plates differ in size it is important that the correct plates are refitted in their In the event of servicing being required to the solder side of the D Board printed original location.

  • Page 21: Convergence

    KV-29C3 Green Blue Fig.3-4 Disk magnets or H.STAT V.STAT rotatable disk convergence Magnete statico verticale magnets correct Purity control corrects control these areas (a-d). this area. C Board RV3702 (H.STAT) RV3701 H.STAT convergence Screen (G2) Deflection yoke positioning • If the horizontal dots are unable to coincide with the corrects these areas variable range of the H.STAT convergence, adjust together with the V.STAT convergence while tracking.

  • Page 23: Focus

    KV-29C3 3-3. Focus Video Proc. TDA4780 1. Receive a television broadcast signal. 2. Normalize the picture setting. 3. Adjust the focus control on the flyback transformer for the best focus at the center of the screen. Bring only the center area of the screen into focus, the magenta-ring appears on the screen.

  • Page 24: Circuit Adjustments

    KV-29C3 SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS Service adjustment to this model can be performed with the supplied remote commander, RM-862. HOW TO ENTER INTO SERVICE MODE Turn on the main power switch of the set while pressing the PROG + (plus) and PROG (minus) buttons on the front panel.
  • Page 25 KV-29C3 SDA9361 (VIDEO PROC.) " 5 " 9 " 8 " 2 " 5 " 9 " 8 " 2 — 25 —...
  • Page 26 KV-29C3 TDA4780 (VIDEO PROC.) — 26 —...
  • Page 27 KV-29C3 V SIZE DEFLECTION SYSTEM ADJUSTMENT Enter into the service mode and select 'Deflect cont.'.The 'Deflect cont. SDA9361' adjustment menu will be displayed. V POS Select and adjust each item in order to get an optimum image. V LIN H SIZE H PIN CUSH H TILT H UP COR...

  • Page 28: Volume Electrical Adjustments

    KV-29C3 4-2. VOLUME ELECTRICAL ADJUSTMENTS Sub Brightness Adjustment Enter Service Mode (Device Menu). Select 'SUB ADJUST MENU'. Adjust the value according to the following advice. Sub Color Adjustment Input a PAL color bar signal. Connect an oscilloscope to CN3703. Enter into 'SERVICE MODE'. Choose 'SUB ADJUST'.

  • Page 29: Test Mode 2

    KV-29C3 4-3. TEST MODE 2: Is available by pressing the Test button twice, OSD “TT” appears. The functions described below are available by pressing the two numbers. To release Test Mode 2, press 0, 10, 20 ... twice or switch the TV into Standby Mode. Pressing the two Local Control buttons ( + and – ) during Power ON will also switch into "TT"...
  • Page 30 KV-29C3 I l l SDA9361 no function no function TDA9143 Default data setting — 30 —...

  • Page 31: Circuit Boards Location

    KV-29C3 5-2. CIRCUIT BOARDS LOCATION 5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS Reference information Note : All capacitors are in µF unless otherwise noted. pF: µµF • RESISTOR : RN METAL FILM 50WV or less are not indicated except for electrolytic and : RC SOLID tantalums.

  • Page 32: Semiconductors

    KV-29C3 5-4. SEMICONDUCTORS P83C654EBA/560 BA7046F MC74F240DWR2 TC4S66F SDA9280A41 BA7046F-T1 TC4S66F-TE85L MB3793-42PNF MB3793-42PNF-ER ( TOP VIEW ) ( TOP VIEW ) TDA4665T-T MSP3400C-PS-C6-T-ND ( TOP VIEW ) SAA4945H/V1 MSP3410B-PS-F7-T-ND SDA9361 SDA30C164-GEG CXA1855Q-T6 SDA5273-C126-GEG ( TOP VIEW ) TDA4780/V3 ( TOP VIEW ) SAA4952WP/V1 LM2940CT-9.0 ( TOP VIEW )
  • Page 33 KV-29C3 2SC4834NP-F09 BF421L-AMMO IRF620 TDA9143/N2 2SC2500-B 2SC2551-O 2SC2551O-TPE2 ( TOP VIEW ) TMS4C2972-26DTR TMS4C2972-28DTR E C B DAN202K 2SA1837 DAN202K-T-146 BF871-127 ( TOP VIEW ) 74HCT4046AD/S470 DAP202K DAP202K-T-146 DTA144EK DTC144EK DTA144EK-T146 DTC144EK-T146 2SC2611 DTC144EKA-T146 DTC114EK 2SC2688-LK 2SA1037K-T-146-R DTC114EKA-T146 2SC3271-N DTC123EK 2SA1162-G ( TOP VIEW ) DTC123EK-T146...
  • Page 34 KV-29C3 D10SC4M MA3056M-TX MA3030-H(TX) SLA-570KT3F MA3033-L MA3062M-TX MA3033L-TX RD5.6M-B2 CATHODE ANODE D4SB60L MA3051L-TX D4SB60L-F RBA-402L CATHODE ANODE MTZJ-T-77-13B MTZJ-33C MTZJ-T-77-15B MTZJ-39C MTZJ-T-77-2.2A RD15ES-B2 MTZJ-T-77-33C RD5.6ESB2 MTZJ-T-77-39C RD9.1ESB2 ERC38-06 MTZJ-T-77-5.6B 1SS119-25 MTZJ-T-77-9.1B 1SS119-25TD MTZJ-13B CATHODE CATHODE ANODE ERD08M-15 ANODE RD12SB2 UDZ-TE-17-12B ANODE CATHODE ANODE...

  • Page 36: Exploded Views

    KV-29C3 SECTION 6 EXPLODED VIEWS NOTE : • Items with no part number and no description are not stocked because they The components identified by Les composants identifies par une are seldom required for routine service. shading and marked are critical trame et une marque sont •...

  • Page 37: Picture Tube

    KV-29C3 6-2. PICTURE TUBE The components identified by Les composants identifies par une trame et une marque sont shading and marked are critical for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece 54 55 portant le numero specifie.

  • Page 38: Electrical Parts List

    KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont SECTION 7 for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece ELECTRICAL PARTS LIST specified.
  • Page 39 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 40 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 41 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 42 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 43 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 44 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 45 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 46 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 47 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 48 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 49 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 50 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 51 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 52 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece D VM specified.
  • Page 53 KV-29C3 The components identified by Les composants identifies par shading and marked are critical une trame et une marque sont for safety. critiques pour la securite. Replace only with the part number Ne les remplacer que par une piece specified. portant le numero specifie.
  • Page 54 Ne les remplacer que par une piece specified. portant le numero specifie. REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK Sony Corporation English Consumer A & V Products Company 96HP71XX-1 9-974-941-01 TV & Display Products Div. Printed in U.K. © 1996.8 — 108 —...

This manual is also suitable for:

Trinitron kv-28ws4bTrinitron kv-28ws4dTrinitron kv-28ws4eTrinitron kv-28ws4kTrinitron kv-28ws4r

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