Sony FD Triniton KV-28FS20U Service Manual
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Sony FD Triniton KV-28FS20U Service Manual

Sony FD Triniton KV-28FS20U Service Manual

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SERVICE MANUAL

BE-3E
CHASSIS
MODEL
MODEL
COMMANDER
DEST
CHASSIS NO.
COMMANDER
DEST
CHASSIS NO.
KV-28FS20U
RM-887
UK
SCC-Q25G-A
1

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Summary of Contents for Sony FD Triniton KV-28FS20U

  • Page 1: Service Manual

    SERVICE MANUAL BE-3E CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-28FS20U RM-887 SCC-Q25G-A...

  • Page 2: Table Of Contents

    THESE COMPONENTS WITH SONY PARTS WHOSE PART TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE SUPPLEMENTS PUBLISHED BY SONY. NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL...
  • Page 3 l l a . s l . s l . s l . s l e i l n i l i n i WARNING (UK Models only) The flexible mains lead is supplied connected to a B.S. 1363 fused plug having a fuse of 13 AMP rating.

  • Page 4: Rear Connection Panel

    21 pin connector Pin No Signal Signal level Audio output B Standard level : 0.5V rms (right) Output impedence : Less than 1kohm* Audio output B Standard level : 0.5V rms (right) Output impedence : More than 10kohm* Audio output A Standard level : 0.5V rms (left) Output impedence : Less than 1kohm*...
  • Page 5 BE-3E SELF DIAGNOSTIC SOFTWARE The errors indicated below can be read using an Error Reader Display (Part Number S-188-900-10) connected to the service connector. Once an error has been detected it will then be displayed on the two digit error reader. During the power up procedure and during normal run time, the micro’s self diagnostic procedures monitor for various errors.
  • Page 6 Protection Error (Error 2): Once every main loop (approximately 200ms OSD mode, 50ms text or menu mode), the micro checks the protection pin (pin 66). If the protection pin is high 6 successive times, a protection error is diagnosed. The protection pin is not checked during the first 3 - 4 seconds after AC on. If this error is diagnosed, the respective NVM register will be updated and the set goes straight into diagnostic standby with 2 flashes - no reset is attempted.
  • Page 7 General IIC Device Run-time Errors (Errors 19-23): Error Description No acknowledge from Jungle when attempting to initialise. No acknowledge from Jungle when attempting to read registers. AV Switch cannot complete reset during initialisation. No acknowledge from AV Switch when attempting to read registers. No acknowledge from NVM when attempting to read or write.
  • Page 8 Error Display Mode Error Display Mode is entered by the following sequence of commands : Standby -> Information -> Digit 5 -> Volume Down -> TV This mode will display a special menu, which will list all possible errors and the number of occurrances of each error (0 - 255, as stored in the NVM).

  • Page 9: General

    SECTION 1 GENERAL...

  • Page 19: Set-Up Adjustments

    SECTION 3 SET-UP ADJUSTMENTS • When complete readjustment is necessary or a new Carry out the following adjustments in this order: picture tube is installed, carry out the following 3-1. Beam Landing adjustments. 3-2. Convergence • Unless there are specific instructions to the contrary, 3-3.

  • Page 20: Convergence

    Center dot GREEN BLUE Fig.3-4 V.STAT H.STAT vertical static magnet convergence control Disk magnets or rotatable disk Purity control corrects magnets correct these areas (a-d). this area. H.STAT VR on mount side H.STAT convergence • If the horizontal dots are unable to coincide with the variable range of the H.STAT convergence, adjust together with the V.STAT convergence while tracking.
  • Page 21 By rotating the V.STAT magnet clockwise, the red, green and HAMP blue dots move in the direction indicated below. HTIL correction can be performed by adding a THL correction By opening or closing the V.STAT magnet, the red, green and ASSY to the DY.
  • Page 22 3-3. SCREEN (G2) LAYOUT OF EACH CONTROL SCREEN G2 ADJUSTMENT Purity magnet Input a dot signal from the pattern generator. BMC (Hexaploe) magnet Set the Picture, Brightness and Colour to minimum. V STAT convergence magnet Apply 175V DC from an external power supply to the Y-splitting axis correction magnet R, G and B cathodes of the CRT.

  • Page 23: White Balance

    3-5. WHITE BALANCE WHITE BALANCE ADJUSTMENT Input an all white signal from the pattern generator. Enter into the Service Mode. Enter into the ‘Picture Adjustment’ service menu. Select ‘Sub contrast’ and adjust to 7. Select the ‘Green drive’ and adjust so that the white balance becomes optimum.

  • Page 24: Circuit Adjustments

    SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS Service adjustments to this model can be performed PICTURE ADJUSTMENT using the supplied Remote Commander RM-887. AFC mode HOW TO ENTER INTO SERVICE MODE REF position SCP BGR Turn on the main power switch and enter into the stand-by SCP BGF mode.
  • Page 25 Dynamic Convergence AGC ON/OFF Range Adj Off - 42 Constant gain CDB H stat Adj Off - 63 FM prescale FMP H amp l Adj Off - 63 Zwei mono-st WHI H amp r Adj Off - 63 Zwei st-mono WLO Up Y Adj Off - 63 Zwei mono-bi WMH...
  • Page 26 I.F ADJUSTMENT DEFLECTION SYSTEM ADJUSTMENT Enter into the ‘Geometry Adjustment’ service menu. Select and adjust each item in order to obtain the optimum Input an off air signal of between 60-100dBuV / 75 ohm image. terminated, via the tuner socket. Enter into the ‘IF Adjustment’...

  • Page 27: Tt Test Mode

    4-2. ‘TT’ TEST MODE : ‘TT’ Mode is available by pressing the Test key twice. It is exited by pressing 0 twice, or by pressing the Test key, or by pressing the TV key, or by pressing the TV key, or by switching the set into standby. The functions described below are available by pressing 2 digits: Cancel Test mode Re-initialise geometry settings...

  • Page 28: T Test Mode

    Special Picture Mode - Personal mode, reset & brightness = 0 Text Interlace odd (Non interlace mode = 3) Text Interlace even (Non interlace mode = 2) Auto Cut Off ENABLE Auto Cut Off DISABLE Diagnostics OFF Diagnostics ON No function Clear &...

  • Page 45: Semiconductors

    5-4. SEMICONDUCTORS MSP3410D-PS-B4-T CXA2040Q-T4 STR-S6709 TLP721(D4-) 2SA733-K 2SA933AS ( TOP VIEW ) (TOP VIEW) 2SA933S PST593C-MMP-4P CXA8070P STV9379 E C B DTA144ES ( TOP VIEW ) DTC114ES LM78L05ACZ DTC143TS DTC144ESA 2SC1740S-RT TDA4665T-T SBX1981-51 ( TOP VIEW ) LM393P SDA5273-3CP-C55-22-GEG M5216P TDA6101Q/N3 DTC144TK SDA3OC263-GEG...
  • Page 46 MTZJ-T-77-33C ERA38-06TP1 2SC2785-HFE D4SB60L RD3.9ESB2 HZS9.INB2 RD5.1ESB2 MTZJ-3.6A RD5.6ESB2 MTZJ-T-77-3.6B MTZJ-T-77-3.9B RD6.8ESB2 MTZJ-5.1B RD10ESB2 MTZJ-5.6B RD15ES-B2 MTZJ-6.8B RD39ES-B2 MTZJ-9.1 ISS119-25TD MTZJ-T-77-9.1B 1SS133T-77 MTZJ-77-22B CATHODE 2SC4927-01 FMS-3FU ANODE MA3030-H (TX) MA3130WA-TX DINL20U HSS83TD EG-1Z-V1 RGP10GPKG23 EGP20G RGP15GPKG23 EL1Z EM1-V1 EU2A EU2-V1 FML-G12S GP08D SLA-570KT3F...
  • Page 47 5-5. IC BLOCK DIAGRAMS (1) A BOARD IC301 CXA2076Q-TL H SYNC PHASE 32fH V SYNC PHASE PHASE GATE H.DRIVE 1/32 SHIFT SAND CASTLE SHARP D PIC 50/60 ID TRAN NESS VIDEO TRAP CONT WIDE Count Down Sawtooth GATE 525/625 Gen. INTER- WIDE KILLER...
  • Page 48 5-5. IC BLOCK DIAGRAMS (2) A BOARD IC4 PST593C DELAY V out Reset D BOARD IC500 STV9379 FLYBACK GENERATOR POWER THERMAL PROTECTION D BOARD IC600 STR-S6709 START UP PROPORTIONAL DRIVE LATCH PRE REG THERMAL...

  • Page 49: Exploded Views

    SECTION 6 EXPLODED VIEWS NOTE : • Items with no part number and no description are not • Items marked “ * “ are not stocked stocked because they are seldom required for routine since they are seldom required for service.

  • Page 50: Picture Tube

    6-2. PICTURE TUBE 64 65 56 57 58 REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK X-4200-594-1 BEZNET ASSY 55-59 *A-1638-126-A C BOARD, COMPLETE 4-045-250-01 DAMPER 4-200-433-01 SPRING, EXTENSION 4-204-731-61 DOOR £ 1-416-466-11 COIL, DEMAGNETIC 4-202-555-01 SHAFT DOOR *4-203-390-61 CUSHION DGC 4-042-192-11 CATCHER, PUSH *4-057-303-01 HOLDER, DGC...

  • Page 51: Electrical Parts List

    SECTION 7 ELECTRICAL PARTS LIST PARTS LISTING TABLE OF CONTENTS Page A1 BOARD COMPLETE Parts List : ....................74 A BOARD COMPLETE Parts List : ....................75 C BOARD COMPLETE Parts List : ....................81 D1 BOARD COMPLETE Parts List : ....................
  • Page 52 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < DIODE > *A-1630-490-A A1 Board, Complete < CAPACITOR > D1201 8-719-988-61 DIODE 1SS355TE-17 D1203 8-719-069-54 DIODE UDZS-TE17-5.1B C1201...
  • Page 53 The components identified by shading and marked are critical for safety A1 A Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R1214 1-216-081-00 RES-CHIP 1/10W 1-163-141-00 CERAMIC CHIP 0.001UF 5.00% 50V R1215 1-216-081-00 RES-CHIP 1/10W...
  • Page 54 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C233 1-104-664-11 ELECT 47UF 20.00% 16V C305 1-163-038-91 CERAMIC CHIP 0.1UF C238 1-104-664-11 ELECT 47UF 20.00% 16V...
  • Page 55 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C358 1-164-005-11 CERAMIC CHIP 0.47UF D214 8-719-069-60 DIODE UDZS-TE17-9.1B C359 1-163-231-11 CERAMIC CHIP 15PF 5.00% 50V D215 8-719-069-60 DIODE UDZS-TE17-9.1B...
  • Page 56 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < COIL > < RESISTOR > L111 1-410-993-22 INDUCTOR CHIP 1UH 1-216-295-91 SHORT L120 1-408-602-31 INDUCTOR 8.2UH...
  • Page 57 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK 1-216-025-91 RES-CHIP 1/10W R120 1-216-069-00 RES-CHIP 6.8K 5% 1/10W 1-216-025-91 RES-CHIP 1/10W R121 1-216-073-00 RES-CHIP 1/10W...
  • Page 58 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R223 1-216-295-91 SHORT R281 1-216-081-00 RES-CHIP 1/10W R224 1-216-041-00 RES-CHIP 1/10W R282 1-216-089-91 RES-CHIP 1/10W R225...
  • Page 59 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R340 1-216-025-91 RES-CHIP 1/10W < TUNER > R341 1-216-025-91 RES-CHIP 1/10W R342 1-216-049-91 RES-CHIP 1/10W TU101...
  • Page 60 The components identified by shading and marked are critical for safety C D1 Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK D704 8-719-991-33 DIODE 1SS133T-77 R727 1-215-903-11 METAL OXIDE D705 8-719-991-33 DIODE 1SS133T-77 R729 1-215-903-11 METAL OXIDE D707...
  • Page 61 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C2223 1-126-943-11 ELECT 2200UF 20.00% 25V D2806 8-719-300-33 DIODE ERB44-06TP1 C2224 1-126-943-11 ELECT 2200UF 20.00% 25V D2807...
  • Page 62 The components identified by shading and marked are critical for safety D1 D Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < RESISTOR > R2847 1-249-429-11 CARBON 1/4W R2848 1-215-449-00 METAL 1/4W R2201 1-535-465-11 LEAD, JUMPER (5.0MM)
  • Page 63 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C515 1-126-941-11 ELECT 470UF 20.00% 25V C805 1-136-207-11 MYLAR 0.047UF 10.00% 250V C517 1-126-941-11 ELECT 470UF...
  • Page 64 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < CONNECTOR > D613 8-719-058-38 DIODE FMN-G12S D614 8-719-058-38 DIODE FMN-G12S CN600 £...
  • Page 65 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < FILTER > < TRANSISTOR > FL501 1-236-163-41 ENCAPSULATED COMPONENT Q501 8-729-119-78 TRANSISTOR 2SC1740S-RT Q502 8-729-119-76 TRANSISTOR 2SA933S-RT Q503...
  • Page 66 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R605 1-216-362-11 METAL OXIDE 0.27 5% R814 1-249-381-11 CARBON 1/4W R606 1-535-143-21 LEAD, JUMPER (12.5MM) R815 1-249-381-11 CARBON 1/4W...
  • Page 67 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R1211 1-249-424-11 CARBON 3.9K 5% 1/4W < CONNECTOR > R1212 1-249-424-11 CARBON 3.9K 5% 1/4W R1213...
  • Page 68 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C5658 1-107-679-91 ELECT 10UF 20.00% 450V IC5606 £ 8-749-013-21 IC TLP721(D4-GR.T) C5901 1-102-106-00 CERAMIC 100PF 10.00% 50V...
  • Page 69 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < TRANSFORMER > C6221 1-136-169-00 MYLAR 0.22UF 5.00% 50V C6222 1-136-169-00 MYLAR 0.22UF 5.00% 50V LF5600 £...
  • Page 70 The components identified by shading and marked are critical for safety J1 VM Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R6209 1-249-421-11 CARBON 2.2K 5% 1/4W C1803 1-137-368-11 MYLAR 0.0047UF 5.00% 50V R6210 1-249-434-11 CARBON...
  • Page 71 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < TRANSISTOR > R1540 1-216-393-00 METAL OXIDE R1541 1-215-886-11 METAL OXIDE Q1501 8-729-119-78 TRANSISTOR 2SC1740S-RT R1542 1-215-473-00 METAL...
  • Page 72 The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK MISCELLANEOUS £ 1-416-466-11 COIL DEMAGNETIC 1-452-032-11 MAGNET, DISK; 10MM 1-452-094-00 MAGNET, ROTATABLE DISK; 15MM £...
  • Page 74 • User programmable Functional Check through Infrared • Fast and documented Test Mode setting of all Sony TV chassis Additional features such as Adjustments and Troubleshooting are available in chassis-dependent software modules. Please contact your local Sony Service organisation for the latest information.

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