Download  Print this page

Sony TRINITRON KV-21FX20A Service Manual

Sony trinitron color tv service manual.
Hide thumbs

Advertisement

SERVICE MANUAL

MODEL
KV-21FX20A
KV-21FX20B
KV-21FX20D
M I C R O F I L M
COMMANDER
DEST
CHASSIS NO.
RM-887
Italian
SCC-Q32D-A
RM-887
French
SCC-Q33D-A
RM-887
AEP
SCC-Q31D-A
MODEL
KV-21FX20E
KV-21FX20K
KV-21FX20R
TRINITRON
1
FE-1A
CHASSIS
COMMANDER
DEST
CHASSIS NO.
RM-887
Spanish
SCC-Q34D-A
RM-887
OIRT
SCC-Q36E-A
RM-887
OIRT
SCC-Q36F-A
COLOR TV
®
®

Advertisement

Table of Contents

   Related Manuals for Sony TRINITRON KV-21FX20A

   Summary of Contents for Sony TRINITRON KV-21FX20A

  • Page 1: Service Manual

    SERVICE MANUAL FE-1A CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-21FX20A KV-21FX20E RM-887 Italian SCC-Q32D-A RM-887 Spanish SCC-Q34D-A KV-21FX20B KV-21FX20K RM-887 French SCC-Q33D-A RM-887 OIRT SCC-Q36E-A KV-21FX20D KV-21FX20R RM-887 SCC-Q31D-A RM-887 OIRT SCC-Q36F-A TRINITRON COLOR TV ®...
  • Page 2: Table

    ITEM MODEL Television System Stereo System Channel Coverage Color System ITALIA VHF : A-H2 (C) UHF : 21-69 PAL Italian B/G/H GERMAN Stereo B/G/H VHF : E2-E12 UHF : E21-E69 PAL, SECAM CABLE TV (1) : S1-S41 NTSC4.43, NTSC3.58 CABLE TV (2) : S01-S05, M1-M10, U1-U10 (VIDEO IN) L VHF : F02-F10 UHF : F21-F60 CABLE : B-Q B/G/H VHF : E2-E12...
  • Page 3 3V dc 2 batteries IEC designation R6 (size AA) Dimensions Approx 44x209x23mm (w/h/d) Weight Approx 89g (Not including battery) Design and specifications are subject to change without notice. Model Name KV-21FX20A KV-21FX20B KV-21FX20D KV-21FX20E KV-21FX20K KV-21FX20R Item Pal Comb RGB Priority...
  • Page 4 Pin No Signal Signal level 21 pin connector ( 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: Table Of Contents

    EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
  • Page 6: Fe-1a Self Diagnostic Software

    FE-1A SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE-1A chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty.
  • Page 7: Automatically Tuning The Tv Using The Remote Control

    First Time Operation - Basic Presetting First Time Operation - Basic Presetting Automatically Tuning the TV using the Remote Control Changing the Programme Order of the TV channels You need to tune the TV to receive channels (TV Broadcast). By following the instructions below, this TV automatically After all available channels (TV Broadcast) are captioned and stored, a new menu appears automatically on the screen to searches and stores all available channels for you.
  • Page 8: Manually Tuning The Tv

    Advanced Operation - Advanced Presetting Advanced Operation - Advanced Presetting Automatically Tuning the TV using the TV buttons Manually Tuning the TV Besides the explanation in the section “Automatically Tuning the TV using the Remote Control“, by following the Use this function to preset channels or a video input source one by one to the programme order of your choice. instructions below, this TV also searches and stores automatically all available channels using just one button of the TV set.
  • Page 9: Adjusting The Picture

    Advanced Operation - Advanced TV Operation Advanced Operation - Advanced TV Operation Adjusting the Picture Adjusting the Sound Although the picture is adjusted at the factory, you can modify it to suit your own taste. Although the sound is adjusted at the factory, you can modify it to suit your own taste. PICTURE CONTROL PICTURE CONTROL Press the MENU button on the remote control to display the menu...
  • Page 10: Viewing Teletext

    Press the colour button (red, green, Hi-Fi yellow or blue) on the remote control to access the corresponding “PlayStation” is a product of Sony Computer Entertainment, Inc. page. “PlayStation” is a trademark of Sony Computer Entertainment, Inc.
  • Page 11: Troubleshooting

    • Replace the batteries. The standby indicator on the TV • Contact to your nearest Sony service centre. flashes even though the “Wake Up Timer” function is not use. • If you continue to have these problems, have your TV serviced by qualified personnel.
  • Page 12: Disassembly

    SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 3 Rear Cover 2 6 Screws BTV 4x16 1 1 Screw BTV 4x16 2-3. SERVICE POSITION 2-2. CHASSIS ASSY REMOVAL...
  • Page 13: S1 Board Removal

    2-4. S1 BOARD REMOVAL Release the clip indicated EHT Lead >20mm >20mm...
  • Page 14: Picture Tube Removal

    2-5. PICTURE TUBE REMOVAL Two Band DGC holders 6 2 Chassis assy Degaussing coils 7 Spring Extension 8 CVM Board 3 Film neck assy 4 Deflection yoke 9 Four PT screws (M) Anode cap 1 10 Picture tube Cushion • REMOVAL OF ANODE-CAP Note : Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon paint on the CRT, after removing the anode.
  • Page 15: Removal And Replacement Of The Main - Bracket Bottom Plates

    £ 2-6.REMOVAL AND REPLACEMENT OF THE MAIN-BRACKET For safety reasons, on no account should the plates be BOTTOM PLATES. removed and not refitted after servicing. (1) REMOVING THE PLATES (2) REFITTING THE PLATES In the event of servicing being required to the solder side of the A Board printed Because the plates differ in size it is important that the correct plates are refitted in wiring board, the bottom plates fitted to the main chassis bracket require to be their original location.
  • Page 16: 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 17: Convergence

    3-2. CONVERGENCE • Tilt the V.STAT magnet and adjust the static convergence by opening or closing the V.STAT magnet. Preparation: • Before starting this adjustment, adjust the focus, horizontal size and vertical size. • Minimize the Brightness setting. • Input a dot pattern from the pattern generator. Horizontal and vertical static convergence If the V.STAT magnet is moved in the direction of the a and b arrows, the Red, Green and Blue points move as...
  • Page 18 • Operation of the BMC (Hexapole) magnet. V.STAT Purity BMC (Hexapole) • The respective dot position resulting from moving each magnet interact, so be sure to perform adjustment whilst tracking. Use the H.STAT VR to adjust the Red, Green and Blue dots so that they coincide at the centre of the screen (by moving the dots in the horizontal direction).
  • Page 19: Focus

    3-3. FOCUS Screen corner convergence. • If you are unable to adjust the corner convergence properly, Receive a television broadcast signal. correct them with the use of permalloy assemblies. Normalise the picture setting. Adjust the focus control on the flyback transformer for the best focus at the centre of the screen.
  • Page 20: Circuit Adjustments

    SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS Service adjustments to this model can be performed PICTURE using the supplied Remote Commander RM-887. R - Drive G - Drive HOW TO ENTER INTO SERVICE MODE B - Drive R - cut - off Turn on the main power switch and enter into the stand-by G - cut - off mode.
  • Page 21 Same Level TECHNICAL GD - Secam BD - Secam RC - Secam GC - Secam BC - Secam B-Out Waveform GD - Sports BD - Sports RC - Sports SYSTEM B/G, D/K, I & L I.F ADJUSTMENT GC - Sports BC - Sports Input a 38.9Mhz carrier signal at 100dBuV to Pin 11 [IF Y - Delay (AV)
  • Page 22 V SIZE BELL FILTER ADJUSTMENT (Secam models only) Note : Ensure that the TV set has been powered up for at least 1 minute to allow for drift before carrying out the following V LIN adjustment. Input a video SECAM Colour Bar signal via AV1. Connect an oscilloscope to pin 1 of CN504 [R-OUT] on the S CORRECTION A board.
  • Page 23: Test Mode 2

    4-2. TEST MODE 2: Is available by pressing ‘TEST’ button twice, OSD ‘TT’ appears. The functions described below are available by pressing the two numbers. To release the Test mode 2, press 0 twice, or switch the TV into stand-by mode, or press the TV button on the remote commander.
  • Page 24 5-1. BLOCK DIAGRAMS CN703 R DRIVE, BKG R OUT Q702, 703 Q704 TO A BOARD CN201 CN504 R AUDIO G DRIVE, BKG G OUT CUT OFF PICTURE TUBE TO SPEAKERS Q705, 706 Q 707 L AUDIO POWER SUPPLY, DEFLECTION TUNING, PROCESSOR, VIDEO SIGNAL PROCESSOR AV IN/OUT J201...
  • Page 28 5-4. SEMICONDUCTORS (1) SE-135N LM358DR-EZ 2SC4793 TDA7495 SE135N-LF12 NJM2233BL NJM4558M-TE2 NJM2903D ( TOP VIEW ) 3 GND STR-F6653 LM393PN TDA2822M BF871-127 TEA2124 TDA9875 TDA9870 ( TOP VIEW ) ( TOP VIEW ) LM294OCT-5.0 STV9379 TOP209P DTA144ESA DTA144ESA-TP DTC114EKA DTC114EKA-T146 ( TOP VIEW ) DTC143TKA-T146 DTC144EKA-T-146R 2SA1037K-T-146-R...
  • Page 29 5-4. SEMICONDUCTORS (2) DAN202K 2SA933AS-QRT DAN202K-T146 2SAG33ASQT 2SA933AS-RT 2SC1740S-RT LETTER SIDE D4SB60L 2SC2785-HFE 2SK2251-01-F19 ERA81-004TP1 MTZJ-T-77-13B ERA83-006 MTZJ-T-77-33A MTZJ-3.6A MTZJ-33C MTZJ-T-77-2.2A MTZJ-7.5B HZS9.INBZ RD3.9ES-B2 MTZJ-T-77-3.9B RD5.6ESB2 MTZJ-T-77-5.6B RD6.8ES-B2 MTZJ-T-77-5.6C RD7.5ESB2 MTZJ-T-77-6.8A RD9.1ES-B3 MTZJ-T-77-6.8C RD10ESB2 MTZJ-T-77-7.5B RD15ESB2 MTZJ-T-77-9.1B 1SS119-25 MTZJ-T-77-10 CATHODE AK04-V1 ERC06-15SL AU-01Z-V1...
  • Page 30: Circuit Board Location

    5-5. IC BLOCK DIAGRAMS A BOARD IC201 TDA7495 A BOARD IC501 STV 9379 VOLUME FLYBACK GENERATOR OP AMP POWER AMPLIFIER MUTE/STBY PROTECTIONS THERMAL PROTECTION VOLUME OP AMP A BOARD IC101 TDA9817/V1 A BOARD IC606 STR-F6653 VOLTAGE T U N E R REFERENCE A G C A G C...
  • Page 31: Chassis

    1-765-286-11 CORD POWER *A-1654-040-A S1 BOARD, COMPLETE (KV-21FX20E/21FX20K) £ 1-453-314-21 TRANSFORMER ASSY, FLYBACK 1-505-924-11 SPEAKER (15x6.5CM) *A-1632-858-A A BOARD, COMPLETE (KV-21FX20A) 7-685-663-71 SCREW +BVTP 4x16 TYPE2 IT3 *A-1632-855-A A BOARD, COMPLETE (KV-21FX20B) 4-204-711-01 COVER, REAR *A-1632-856-A A BOARD, COMPLETE (KV-21FX20D)
  • Page 32: Picture Tube

    REMARK REF. NO. PART.NO DESCRIPTION REMARK X-4200-491-1 BEZNET ASSY £ 8-451-494-21 DEFLECTION YOKE (Y21RSA-S) (KV-21FX20A/21FX20D/21FX20R) 52-58 1-452-728-61 COIL, NA ROTATION (RT-154) X-4200-490-1 BEZNET ASSY *A-1638-130-A CVM BOARD, COMPLETE (KV-21FX20B/21FX20E/21FX20K) 52-58 4-369-318-21 SPRING, TENSION 4-047-464-01 CATCHER, PUSH £ 1-419-187-11 COIL, DEGAUSSING...
  • Page 33: Electrical Parts List

    A BOARD COMMON Parts List : Parts common to all models listed in this manual ....... 51 A BOARD VARIANT Parts List : Parts that belong only to the model specified Model KV-21FX20A/21FX20D/21FX20E KV-21FX20K/21FX20R ....................59 KV-21FX20B ....................59 CVM BOARD COMPLETE Parts List : ....................
  • Page 34 REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C118 1-163-038-91 CERAMIC CHIP 0.1MF *A-1632-858-A A Board, Complete (KV-21FX20A) C120 1-163-031-11 CERAMIC CHIP 0.01MF *A-1632-855-A A Board, Complete (KV-21FX20B) C122 1-164-161-11 CERAMIC CHIP 0.0022MF *A-1632-856-A A Board, Complete (KV-21FX20D) C129...
  • Page 35: A Board

    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 C317 1-164-222-11 CERAMIC CHIP 0.22MF C518 1-106-375-12 MYLAR 0.022MF 250V C319 1-126-964-11 ELECT 10MF C519 1-163-275-11 CERAMIC CHIP 0.001MF...
  • Page 36 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 D019 8-719-914-43 DIODE DAN202K C628 1-124-347-00 ELECT 100MF 160V C630 1-165-127-11 CERAMIC 470PF 500V D023...
  • Page 37 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 D512 8-719-908-03 DIODE GP08D IC004 8-759-527-76 IC M24C08-MN6T D513 8-719-908-03 DIODE GP08D IC201 8-759-442-74 IC TDA7495 D514...
  • Page 38 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 L325 1-412-002-31 INDUCTOR CHIP 4.7UH Q328 8-729-120-28 TRANSISTOR 2SC1623-L5L6 L401 1-414-187-11 INDUCTOR 47UH Q329 8-729-026-50 TRANSISTOR 2SA1037AK...
  • Page 39 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 R027 1-216-083-00 RES,CHIP 1/10W R094 1-216-025-91 RES,CHIP 1/10W R028 1-216-049-91 RES,CHIP 1/10W R095 1-216-025-91 RES,CHIP 1/10W...
  • Page 40: S1 Board

    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 R314 1-247-807-31 CARBON 1/4W R427 1-216-113-00 RES,CHIP 470K 5% 1/10W R315 1-216-075-00 RES,CHIP 1/10W R429 1-216-041-00 RES,CHIP...
  • Page 41 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 R531 1-216-057-00 RES,CHIP 2.2K 5% 1/10W R653 1-216-393-00 METAL OXIDE R532 1-216-075-91 RES,CHIP 1/10W R654 1-249-389-11 CARBON...
  • Page 42: Kv-21fx20a/21fx20d/21fx20e

    REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R160 1-216-049-91 RES,CHIP 1/10W A Board Variant Parts KV-21FX20A/21FX20D/21FX20E R161 1-216-021-00 RES,CHIP 1/10W KV-21FX20K/21FX20R < CAPACITOR > < TUNER > C111 1-216-296-91 SHORT TU101 8-598-432-10 TUNER (BTP-AC411) C123 1-102-108-00 CERAMIC...
  • Page 43: Cvm Board

    The components identified by shading and marked are critical for safety A CVM Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R111 1-216-053-00 RES,CHIP 1.5K 5% 1/10W C718 1-102-114-00 CERAMIC 470PF R112 1-216-053-00 RES,CHIP 1.5K 5%...
  • Page 44 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 D719 8-719-991-33 DIODE 1SS133T-77 Q713 8-729-046-28 TRANSISTOR BF420-126 D721 8-719-991-33 DIODE 1SS133T-77 Q714 8-729-026-39 TRANSISTOR 2SA933AS-QT D722...
  • Page 45: Semiconductors

    DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R746 1-249-417-11 CARBON 1/4W *A-1654-041-A S1 Board, Complete R750 1-249-417-11 CARBON 1/4W (KV-21FX20A/21FX20D/21FX20R) R751 1-249-417-11 CARBON 1/4W *A-1654-039-A S1 Board, Complete R1701 1-249-413-11 CARBON 1/4W (KV-21FX20B) R1702 1-247-807-31 CARBON 1/4W *A-1654-040-A S1 Board, Complete...
  • Page 46: Kv-21fx20k/21fx20r

    KV-21FX20A/21FX20D/21FX20E/ D1110 8-719-069-55 DIODE UDZS-TE17-5.6B KV-21FX20K/21FX20R < FERRITE BEAD > < IC > FB1101 1-410-396-41 FERRITE 0.45UH IC1101 8-759-574-74 IC TDA9870A (KV-21FX20A/21FX20D/21FX20R) FB1102 1-410-396-41 FERRITE 0.45UH 8-759-574-73 IC TDA9875A (KV-21FX20E/21FX20K) FB1104 1-410-396-41 FERRITE 0.45UH FB1110 1-412-002-31 INDUCTOR CHIP 4.7UH < RESISTOR >...
  • Page 47: Ic Blocks

    1-216-049-91 RES,CHIP 1/10W ACCESSORIES AND PACKAGING MATERIALS *4-042-477-01 BAG, PROTECTION *4-204-898-01 INDIVIDUAL CARTON *4-204-892-01 CUSHION (UPPER) (ASSY) *4-204-895-01 CUSHION (LOWER) (ASSY) 4-204-905-41 MANUAL INSTRUCTION (KV-21FX20A) (ITALIAN) 4-204-905-51 MANUAL INSTRUCTION (KV-21FX20B) (FRENCH/ITALIAN/GERMAN/DUTCH) 4-204-905-11 MANUAL INSTRUCTION (KV-21FX20D) (ENGLISH/GERMAN/GREEK/TURKISH) 4-204-905-71 MANUAL INSTRUCTION (KV-21FX20E)

Comments to this Manuals

Symbols: 0
Latest comments: