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Sony KV-25K5K Servise Manual
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Sony KV-25K5K Servise Manual

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SERVICE MANUAL

MODEL
COMMANDER
KV-25K5K
RM-883
M I C R O F I L M
DEST
CHASSIS NO.
OIRT
SCC-Q03M-A
SELF-DIAGNOSTIC FUNCTION
MODEL
COMMANDER
KV-29K5K
TRINITRON
1
FE-1
CHASSIS
DEST
CHASSIS NO.
RM-883
OIRT
SCC-Q03N-A
/
MENU
PROGR
RM-883
COLOR TV
®
®

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Summary of Contents for Sony KV-25K5K

  • Page 1: Service Manual

    SELF-DIAGNOSTIC FUNCTION SERVICE MANUAL FE-1 CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-25K5K KV-29K5K RM-883 OIRT SCC-Q03M-A RM-883 OIRT SCC-Q03N-A MENU PROGR RM-883 TRINITRON COLOR TV ® ® M I C R O F I L M...
  • Page 2 [TELEVISION SYSTEM] 21-pin Euro connector. inputs for Audio and Video signals. B/G/H, D/K inputs for S Video. outputs for Audio and Video signals (selectable). [COLOUR SYSTEM] Phono Jack Outputs for Audio Signals [FRONT] SECAM NTSC 3.58,4.43 (Video in) Video input - phono jack [CHANNEL COVERAGE] Audio inputs - phono jacks S Video input 4 pin DIN...
  • Page 3 Model Name KV-25K5K KV-29K5K Item Pal Comb Velocity Modulation DF & DQP Woofer Box Scart 1 Scart 2 Front in Scart 4 Projector AKB in 16:9 mode Norm B/G/H Norm I Norm D/K Norm AUS Norm L Norm SAT Norm M...
  • 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: General

    The operating instructions mentioned here are partial abstracts SECTION 1 GENERAL from the Operating Manual. The page numbers of the Operating Instruction Manual remain as in the manual. Additional TV Features Basic TV Features Using Select Mode Overview of TV Buttons You can select different preset picture and sound modes.

  • Page 7: Adjusting The Picture

    Additional TV Features Additional TV Features Adjusting the Picture Adjusting the Sound Although the picture is adjusted at the factory, you can modify it to suit your own Although the sound is adjusted at the factory, you can modify it to suit your own requirement.

  • Page 8: Using The Sleep Timer

    Additional TV Features Additional TV Features Using the Sleep Timer Viewing Teletext The TV may be set to switch automatically to the standby mode after a length of time Teletext is an information service transmitted by most TV stations. chosen by you. You may set the time in 15 minute steps up to 4 hours. Selecting Teletext Press the MENU button on the remote control to SELEC T...

  • Page 9: Exchanging Programme Pos

    Additional TV Features Additional TV Features Exchanging Programme Positions Manually Tuning the TV After tuning you may wish to change the order in which the channels appear on the You have already tuned the TV to receive all available channels using the TV.

  • Page 10: Fine-Tuning Channels

    Additional TV Features Optional Connections Fine-Tuning Channels Using Optional Equipment You can connect optional audio or video equipment to your TV, such as a VCR, a If a channel is slightly off tune, you can use this fine tune procedure to obtain a better camcorder or video games as shown.

  • Page 11: Troubleshooting

    Additional Information Troubleshooting Specifications Here are some simple solutions to problems which may affect the picture and sound. TV system Problem Solution Colour system No picture (screen is dark), no sound • Plug the TV in. NTSC 3.58, 4.43 (only Video In) •...

  • Page 12: Disassembly

    SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 3 Rear Cover 2 8 Screws BTV 4x16 1 1 Screw BTV 4x16 2-2. CHASSIS ASSY REMOVAL...

  • Page 13: Service Position

    2-3. SERVICE POSITION 2-4. H1 BOARD REMOVAL 2-5. S1 BOARD REMOVAL Release the clip indicated. To release, push the claws in the direction of the arrow as indicated.

  • Page 14: Picture Tube Removal

    2-6. PICTURE TUBE REMOVAL Two DGC holders Degaussing coils Chassis assy Spring Extension Speaker box C board Two screws 8 VM Board 9 Neck (KV-29K5 only) assy (KV-29K5 only) Four PT Deflection yolk screws (M) Speaker box 1 Anode cap Two screws Picture tube Cushion...

  • Page 15: Removal And Replacement Of The Main - Bracket Bottom Plates

    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. REMOVING THE PLATES 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, 3-4.

  • 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: Screen [G2] White Balance

    3-3. Screen [G2], White balance Screen corner convergence. • If you are unable to adjust the corner convergence properly, this can be corrected by the use of permalloy assemblies. G2 Setting Input a dot signal from the pattern generator. Set the Picture, Brightness and Colour to minimum. Apply 170Vdc from an external power supply to the R, G and B cathodes of the CRT.

  • 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-883. R - Drive HOW TO ENTER INTO SERVICE MODE G - Drive Turn on the main power switch and enter into the stand-by B - Drive mode.
  • Page 21 Note: Ensure that no signal is applied to the Antenna socket while carrying out the following IF adjustments. TECHNICAL SYSTEM B/G, D/K, I & L I.F ADJUSTMENT GD - Secam Input a 38.9Mhz carrier signal at 100dBuV to Pin 11 [IF BD - Secam output] of the tuner [TU101].
  • Page 22 BELL FILTER ADJUSTMENT ( Secam models only V SIZE Note : Ensure that the TV set has been powered up for at least 1 minute to allow for drift before carrying out the following adjustment. V LIN 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: Self Diagnostic Software

    4-3. FE-1 SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE-1 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 25: Block Diagram

    5-1 BLOCK DIAGRAMS (1) CN201 TUNER, POWER SUPPLY HV OUT R AUDIO TO SPEAKERS AUDIO, MICRO CONTROLLER/TEXT L AUDIO YC JUNGLE VIF DECODER IC501 PH601 V OUTPUT ISOLATOR CN208 DY ASSY CN606 L AUDIO V- DY+ R AUDIO TO H1 TO H1 V- DY+ VIDEO AMP...

  • Page 26: Circuit Board Location

    5-1 BLOCK DIAGRAMS (2) 5-2. CIRCUIT BOARD LOCATION Reference Information (STEREO DECODER) IC1101 CN1101 STEREO DECODER RESISTOR : METAL FILM XTAI OUT : SOLID C Board XTAI IN FPRD : NON FLAMMABLE CARBON 29” models only SIFI FUSE : NON FLAMMABLE FUSIBLE VM Board MONO MONO IN...

  • Page 31: A Board

    WAVEFORMS A BOARD SECAM SECAM 1.0 Vp-p (H) 1.3 Vp-p (H) 1.0 Vp-p (H) 1.3 Vp-p (H) 2.6 Vp-p (H) 2.6 Vp-p (H) 0.5 Vp-p (H) 5.0 Vp-p (H) 1.4 Vp-p (H) 2.0 Vp-p (H) 146 Vp-p (V) 12 Vp-p (H) 142 Vp-p (H) 56 Vp-p (V) 290 Vp-p (H)

  • Page 32: Semiconductors

    5-4 SEMICONDUCTORS ERA81-004TP1 MTZJ-T-77-33A 2SA933AS-QRT ERA83-006 MTZJ-33C CD4052BCM STR-F6654 TDA9875 2SA1837 2SA933AS-RT MTZJ-T-77-3.9B MTZJ-7.5B TDA9870 2SC1740S-RT MTZJ-T-77-5.6B RD3.9ES-B2 MTZJ-T-77-5.6C RD5.6ESB2 RD6.8ES-B2 MTZJ-T-77-6.8A LETTER SIDE MTZJ-T-77-6.8C RD7.5ESB2 MTZJ-T-77-7.5C RD9.1ES-B3 MTZJ-T-77-9.1A 1SS119-25TD (TOP VIEW) MTZJ-T-77-9.1A 1SS133T-77 MTZJ-T-77-10 ( TOP VIEW ) LM358DR-EZ NJM4558M-TE2 CATHODE NJM2903D...

  • Page 33: Ic Block Diagrams

    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-F6654 VOLTAGE TUNER REFERENCE DETECTOR START O.V.P LATCH DRIVE...

  • Page 34: Exploded Views

    PART.NO DESCRIPTION REMARK £ 1-571-433-21 SWITCH, PUSH (AC POWER) *A-1652-054-A S1 BOARD, COMPLETE *4-204-141-01 BRACKET, MAIN *A-1632-794-A A BOARD, COMPLETE (KV-25K5K) *4-202-531-01 AC CORD LOCK (SC) *A-1632-795-A A BOARD, COMPLETE (KV-29K5K) £ 1-765-286-11 CORD, POWER *A-1646-160-A H1 BOARD, COMPLETE £...

  • Page 35: Picture Tube

    4-204-071-01 PLATE, ORNAMENTAL £ 1-416-654-11 COIL, DEMAGNETIZATION (KV-29K5K) 4-203-704-01 BUTTON POWER 4-203-390-01 CUSHION, DGC 4-202-964-01 SPRING 4-203-877-01 HOLDER, DGC BRACKET 25” (KV-25K5K) 4-204-070-01 GUIDE, LIGHT 4-203-878-01 HOLDER, DGC BRACKET 29” (KV-29K5K) 4-203-128-11 SHEET, BLOTTING 1-505-484-11 SPEAKER (2.6CM) £ 8-733-254-05 PICTURE TUBE (SD-257)(M60LCS60X)

  • Page 36: Electrical Parts List

    All resistors are in ohms. • F : nonflammable. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK *A-1632-794-A A BOARD, COMPLETE (KV-25K5K) C041 1-163-205-00 CERAMIC CHIP 0.001MF ***************** C042 1-126-933-11 ELECT 100MF *A-1632-795-A A BOARD, COMPLETE (KV-29K5K) C043 1-126-935-11 ELECT 470MF...
  • Page 37 1-104-664-11 ELECT 47MF C552 1-102-212-00 CERAMIC 820PF 500V C432 1-163-141-00 CERAMIC CHIP 0.001MF C553 1-137-417-11 MYLAR 0.0047MF 200V C433 1-163-141-00 CERAMIC CHIP 0.001MF C555 1-117-717-11 FILM 17000P 1.2KV(KV-25K5K) C434 1-126-935-11 ELECT 470MF 1-117-648-11 FILM 15000PF 1.2KV(KV-29K5K) C435 1-163-017-00 CERAMIC CHIP 0.0047MF...
  • 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 C571 1-123-024-21 ELECT 33MF 160V CN406 1-564-511-11 PLUG, CONNECTOR 8P C572 1-128-526-11 ELECT 100MF CN501 *1-580-798-11 CONNECTOR PIN (DY) 6P...
  • 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 D415 8-719-929-15 DIODE HZS9.INBZ FB610 1-410-397-21 FERRITE 1.1UH D417 8-719-929-15 DIODE HZS9-INB2 FB611 1-410-397-21 FERRITE 1.1UH...
  • Page 40 Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK L537 1-409-756-11 COIL, HORIZONTAL LINEARITY (KV-25K5K) R001 1-216-025-00 RES,CHIP 1/10W 1-409-855-11 COIL, HORIZONTAL LINEARITY (KV-29K5K) R002 1-216-025-00 RES,CHIP 1/10W L540 1-535 465 11 LEAD, JUMPER (5.0MM) R003 1-216-065-00 RES,CHIP 4.7K 5%...
  • 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 R081 1-216-073-00 RES,CHIP 1/10W R313 1-216-025-00 RES,CHIP 1/10W R082 1-216-053-00 RES,CHIP 1.5K 5% 1/10W R314 1-216-025-00 RES,CHIP...
  • Page 42 DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R432 1-216-113-00 RES,CHIP 470K 5% 1/10W R534 1-216-107-00 RES,CHIP 220K 5% 1/10W (KV-25K5K) R435 1-216-022-00 RES,CHIP 1/10W 1-216-113-91 RES,CHIP 470K 5% 1/10W (KV-29K5K) R436 1-216-041-00 RES,CHIP 1/10W R535 1-216-109-00 RES,CHIP 330K 5% 1/10W (KV-25K5K)
  • Page 43 CN702 1-695-915-11 TAB (CONTACT) < TRANSFORMER > CN703 *1-564-509-11 PLUG, CONNECTOR 6P T511 £ 1-453-264-11 TRANSFORMER ASSY, FLYBACK (NX-1680/U2B4) < DIODE > (KV-25K5K) 1-453-265-11 TRANSFORMER ASSY, FLYBACK (NX-1681/U2B4) D702 8-719-991-33 DIODE 1SS133T-77 (KV-29K5K) D703 1-535-465-11 DIODE 1SS133T-77 T531 1-437-195-11 TRANSFORMER, HORIZONTAL DRIVE...
  • Page 44 The components identified by shading and marked are critical for safety Replace only with the part number C VM specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < TRANSISTOR > R745 1-249-421-11 CARBON 2.2K 5% 1/4W R746 1-249-421-11 CARBON 2.2K 5% 1/4W...
  • Page 45 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 C1952 1-164-232-11 CERAMIC CHIP 0.01MF L1901 1-406-677-11 INDUCTOR C1953 1-136-165-00 FILM 0.1MF C1954 1-164-232-11 CERAMIC CHIP 0.01MF <...
  • Page 46 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 R1752 1-216-049-71 RES,CHIP 1/10W R1961 1-216-097-00 RES,CHIP 100K 5% 1/10W R1753 1-216-049-71 RES,CHIP 1/10W R1962 1-216-101-00 RES,CHIP...
  • Page 47 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 < FUSE > C1112 1-163-001-11 CERAMIC CHIP 220PF C1113 1-104-664-11 ELECT 47MF F601 £...
  • Page 48 8-598-432-00 TUNER (FSS-BTP-AC411) R1113 1-216-073-00 RES,CHIP 1/10W R1116 1-216-689-11 METAL CHIP 39K. 50% 1/10W £ 8-733-254-05 PICTURE TUBE (SD-257) (M60LCS60X) (KV-25K5K) R1117 1-216-073-00 RES,CHIP 1/10W £ 8-733-856-05 PICTURE TUBE (SD-269) (M68LCT60X) (KV-29K5K) R1118 1-216-682-11 METAL CHIP 0.50% 1/10W £ 8-451-404-23 DEFLECTION YOKE (Y25GXABA) (KV-25K5K) , £...

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Kv-29k5k

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