Table of Contents
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SERVICE MANUAL
MODEL
COMMANDER
KV-25M2A
RM-883
KV-25T2A
RM-883
KV-25T2B
RM-883
KV-25M2D
RM-883
KV-25T2D
RM-883
KV-25M2E
RM-883
M I C R O F I L M
DEST
CHASSIS NO.
Italian
SCC-Q06G-A
Italian
SCC-Q06H-A
French
SCC-Q02G-A
AEP
SCC-Q04G-A
AEP
SCC-Q04H-A
Spanish
SCC-Q05G-A
SELF-DIAGNOSTIC FUNCTION
MODEL
COMMANDER
KV-25T2E
KV-25M2K
KV-25T2K
KV-25T2R
KV-25T2L
KV-25T2U
TRINITRON
1
FE-1
CHASSIS
DEST
CHASSIS NO.
RM-883
Spanish
SCC-Q05H-A
RM-883
OIRT
SCC-Q03J-A
RM-883
OIRT
SCC-Q03K-A
RM-883
OIRT
SCC-Q03L-A
RM-883
Irish
SCC-Q07C-A
RM-883
UK
SCC-Q01E-A
/
MENU
PROGR
RM-883
COLOR TV
®
®
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Table of Contents
Related Manuals for Sony Trinitron KV-25M2A
Summary of Contents for Sony Trinitron KV-25M2A
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Page 1: Service Manual
SELF-DIAGNOSTIC FUNCTION SERVICE MANUAL FE-1 CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-25M2A KV-25T2E RM-883 Italian SCC-Q06G-A RM-883 Spanish SCC-Q05H-A KV-25T2A KV-25M2K RM-883 Italian SCC-Q06H-A RM-883 OIRT SCC-Q03J-A KV-25T2B KV-25T2K RM-883 French SCC-Q02G-A RM-883 OIRT SCC-Q03K-A... - Page 2 KV-25M2/25T2 ITEM MODEL Television System Channel Coverage Color System VHF : E02-E12, A-H2 Italian B/G/H UHF : E21-E69 CABLE TV : S01-S05, S1-S20 HYPER : S21-S41 VHF : E02-E12, R01-R12, F2-F10, A-H2 French B/G/H, L UHF : E21-E69, B21-B69, R21-R69, F21-F69 PAL, SECAM CABLE TV : S01-S05, S1-S20 HYPER : S21-S41...
- Page 3 KV-25M2/25T2 Model Name KV-25M2A KV-25M2D KV-25M2E KV-25M2K Item KV-25T2A KV-25T2B KV-25T2D KV-25T2E KV-25T2K KV-25T2L KV-25T2R KV-25T2U Pal Comb Woofer Box Scart 1 Scart 2 Front in (3) Scart 4 Projector AKB in 16:9 mode Norm B/G Norm I Norm D/K...
- Page 4 KV-25M2/25T2 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)
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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 Using the Sleep Timer Although the picture is adjusted at the factory, you can modify it to suit your own The TV may be set to switch automatically to the standby mode after a length of time requirement. -
Page 8: Viewing Teletext
Additional TV Features Additional TV Features Viewing Teletext Using the Wake Up Timer 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. -
Page 9: Exchanging Programme Positions
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/Specifications
Additional Information Troubleshooting Specifications Here are some simple solutions to problems which may affect the picture and sound. TV system Problem Solution No picture (screen is dark), • Plug the TV in. no sound • Press the button on the front of TV. Colour system •... -
Page 12: Disassembly
KV-25M2/25T2 SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 2-2. CHASSIS ASSY REMOVAL 3 Rear Cover 2 1 Screw BTV 4x16 1 4 Screws BTV 4x16 2-3. SERVICE POSITION... -
Page 13: Picture Tube Removal
KV-25M2/25T2 2-4. PICTURE TUBE REMOVAL 5 DGC holder 2 A Board Degaussing coils 6 Spring tension 7 C board 3 Four PT screws 8 4 Deflection yoke Anode cap 1 Picture tube 9 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. * REMOVING PROCEDURES. -
Page 14: Set-Up Adjustments
KV-25M2/25T2 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 15: Convergence
KV-25M2/25T2 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. - Page 16 KV-25M2/25T2 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].
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Page 17: Screen [G2] White Balance
KV-25M2/25T2 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. -
Page 18: Circuit Adjustments
KV-25M2/25T2 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 19 KV-25M2/25T2 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 20 KV-25M2/25T2 DEFLECTION SYSTEM ADJUSTMENT Enter into the ‘Geometry’ service menu. V SIZE Select and adjust each item in order to obtain the optimum image. V LIN GEOMETRY V centre S CORRECTION V size V Lin S Corr V CENTRE H Cent H Size Pin Amp H CENTRE...
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Page 21: Test Mode 2
KV-25M2/25T2 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 22: Self Diagnostic Software
KV-25M2/25T2 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 23: Block Diagrams
5-1 BLOCK DIAGRAMS TUNER, POWER SUPPLY HV OUT AUDIO, MICRO CONTROLLER/TEXT S601 YC JUNGLE VIF DECODER IC501 PH601 V OUTPUT POWER ISOLATOR DY ASSY CN601 CN201 V- DY+ V- DY+ LINE FILTER VIDEO AMP BOOST T601 IC101 VIF/SIF Q408, 409 V- DY- V- DY- V DY... -
Page 27: Circuit Board Location
5-4 SEMICONDUCTORS LM393P STV9379 BF421-AMMO AK04-V1 ERD28-06S TDA2822M 2SA1091-O AU-012-V1 ERC06-15 TEA2124 DINL20-TR GP08DPKG23 ERB44-06TP1 RG1CLF-B1 EG-1Z-V1 RGP10GPKG23 EL1Z RU-4AM-T3 CATHODE ( TOP VIEW ) ANODE SAA5498PS/M1A/019 ST24W08FM6TR 2SC688-LK SAA5498PS/M1A/041 SAA5498PS/M1A/042 SAA5498PS/M1A/043 DAN202K DAN202K-T146 ( TOP VIEW ) ( TOP VIEW ) TDA7494 SBX1981-51 DTC114EK... -
Page 28: 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 29: Exploded Views
REMARK REF. NO. PART.NO DESCRIPTION REMARK £ 1-571-433-21 SWITCH, PUSH (AC POWER) *A-1632-761-A A BOARD, COMPLETE (KV-25M2A) 4-202-531-01 AC CORD LOCK (SC) *A-1632-762-A A BOARD, COMPLETE (KV-25T2A) £ 1-765-286-11 CORD, POWER *A-1632-788-A A BOARD, COMPLETE (KV-25T2B) (KV-25M2A/25T2A/25T2B/25M2D/25T2D/25M2E *A-1632-756-A A BOARD, COMPLETE (KV-25M2D) -
Page 30: Picture Tube
DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK X-4200-391-1 BEZNET ASSY 53-57 4-369-318-21 SPRING, TENSION 4-204-212-01 DOOR, BARE (KV-25M2A/25M2D/25M2E/25M2K) £ 1-416-465-21 COIL, DEMAGNETIC 4-204-211-11 DOOR, PRINTED (KV-25T2A) 4-202-745-01 HOLDER, DGC (25) 4-204-211-01 DOOR, PRINTED (KV-25T2B/25T2D/25T2E/ 3-704-495-01 SPACER, DY KV-25T2K/25T2L/25T2R/ £ 1-251-317-31 CAP ASSY, HIGH VOLTAGE... -
Page 31: A Board
F : nonflammable. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK *A-1632-761-A A BOARD COMPLETE (KV-25M2A) C016 1-164-004-11 CERAMIC CHIP 0.1MF **************** C018 1-164-232-11 CERAMIC CHIP 0.01MF *A-1632-762-A A BOARD COMPLETE (KV-25T2A) C019 1-163-038-00 CERAMIC CHIP 0.1MF ****************... - Page 32 KV-25M2/25T2 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 C115 1-164-489-11 CERAMIC CHIP 0.22MF C319 1-126-964-11 ELECT 10MF C116 1-126-961-11 ELECT 2.2MF C321 1-126-963-11 ELECT...
- Page 33 1-163-251-11 CERAMIC CHIP 100PF C635 1-107-675-11 ELECT 160V C536 1-115-522-11 FILM 200V C638 1-107-670-11 ELECT 10MF 400V C537 1-137-417-11 MYLAR 0.0047MF 200V (KV-25M2A/25T2A/25T2B/25M2D/25T2D/25M2E/ C539 1-111-230-11 ELECT 160V KV-25T2E/25M2K/25T2K/25T2L/25T2U) 1-107-679-91 ELECT 10MF 450V C540 1-136-206-11 FILM 0.033MF 400V (KV-25T2R) C541 1-106-383-00 MYLAR 0.047MF...
- Page 34 KV-25M2/25T2 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 CN601 £ *1-580-843-11 PIN, CONNECTOR (POWER) D514 8-719-979-85 DIODE EGP20G CN602 £ 1-508-765-00 PIN, CONNECTOR (5MM PITCH) 3P D534 8-719-302-43 DIODE EL1Z CN603 £...
- Page 35 REF. NO. PART.NO DESCRIPTION REMARK < IC > L302 1-408-611-31 INDUCTOR 47UH L303 1-408-609-41 INDUCTOR 33UH IC001 8-759-531-94 IC SAA5491PS/M1A/019 (KV-25M2A/25M2D/ L401 1-408-611-31 INDUCTOR 47UH KV-25M2E/25M2K) L405 1-216-295-00 SHORT 8-759-529-36 IC SAA5498PS/M1A/041 (KV-25T2A/25T2B/25T2E/ L501 1-408-611-31 INDUCTOR 47UH KV-25T2K/25T2L/25T2U) 8-759-529-24 IC SAA5498PS/M1A/042...
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Page 36: C Board
R055 1-216-081-00 RES,CHIP 1/10W JR109 1-216-295-00 SHORT R056 1-216-105-91 RES,CHIP 220K 5% 1/10W JR110 1-216-295-00 SHORT R057 1-216-075-00 RES,CHIP 1/10W (KV-25M2A/25T2A/25T2B/25M2D/25T2D/ R058 1-216-063-91 RES,CHIP 3.9K 5% 1/10W KV-25M2E/25T2E/25T2L/25T2U) R059 1-216-089-00 RES,CHIP 1/10W JR115 1-216-295-00 SHORT R060 1-216-174-00 RES,CHIP 1/8W JR116... - Page 37 1-216-025-00 RES,CHIP 1/10W R131 1-216-067-00 RES,CHIP 5.6K 5% 1/10W R319 1-216-025-00 RES,CHIP 1/10W R132 1-216-295-00 SHORT R320 1-216-025-00 RES,CHIP 1/10W (KV-25M2A/25T2A/25M2D/25T2D/25M2E/25T2E/ R321 1-216-025-00 RES,CHIP 1/10W KV-25M2K/25T2K/25T2L/25T2R/25T2U) R323 1-216-025-00 RES,CHIP 1/10W R133 1-216-295-00 SHORT (KV-25M2A/25T2A/25M2D/25T2D/25M2E/25T2E/ R324 1-412-002-21 INDUCTOR CHIP 4.7UH KV-25M2K/25T2K/25T2L/25T2R/25T2U) R325 1-412-002-21 INDUCTOR CHIP 4.7UH...
- Page 38 1-216-083-00 RES,CHIP 1/10W R415 1-216-022-00 RES,CHIP 1/10W R525 1-216-057-00 RES,CHIP 2.2K 5% 1/10W R417 1-247-804-11 CARBON 1/4W R526 1-216-089-00 RES,CHIP 1/10W (KV-25M2A/25T2A/25T2B/25M2D/25T2D/ R527 1-216-077-00 RES,CHIP 1/10W KV-25M2E/25T2E/25M2K/25T2K/25T2R) R528 1-216-246-00 RES,CHIP 100K 5% 1/8W 1-247-698-11 CARBON 1/4W R529 1-216-073-00 RES,CHIP 1/10W (KV-25T2L/25T2U)
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Page 39: Semiconductors
R614 £ 1-240-030-91 METAL 4.7M 5% 1/2W R615 1-249-422-11 CARBON 2.7K 5% 1/4W TU101 8-598-331-02 TUNER (VSS BT-AC401) R616 1-216-397-11 METAL OXIDE (KV-25M2A/25T2A/25M2D/25T2D/25M2E/25T2E/ R617 1-249-405-11 CARBON 1/4W F KV-25M2K/25T2K/25T2L/25T2R/25T2U) 1-693-310-11 TUNER (TELE4-002B) (KV-25T2B) R619 1-216-065-00 RES,CHIP 4.7K 5% 1/10W R622... -
Page 40: Ic Blocks
KV-25M2/25T2 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 D714 8-719-991-33 DIODE 1SS133T-77 R727 1-247-815-91 CARBON 1/4W D715 8-719-991-33 DIODE 1SS133T-77 R728 1-216-351-00 METAL OXIDE D716... -
Page 41: Picture Tube
1-453-264-11 TRANSFORMER ASSY, FLYBACK (NX-1680/U2B4) 1-504-698-11 SPEAKER (5X9CM) £ 1-251-317-31 CAP ASSY, HIGH-VOLTAGE £ 1-571-433-21 SWITCH, PUSH (AC POWER) £ 1-765-286-11 CORD POWER (KV-25M2A/25T2A/25T2B/25M2D/25T2D/ KV-25M2E/25T2E/25M2K/25T2K) £ 1-776-860-11 POWER CORD, FILTER (UK) (KV-25T2L/25T2U) £ 1-690-270-21 CORD, POWER (WITH CONNECTOR) (KV-25T2R) 8-598-331-02 TUNER (VSS BT-AC401) - Page 42 KV-29X5 English Sony Corporation 98CP7174-1 Sony UK Printed in U.K. © 1998.3 Service Promotions Dept. 9-974-968-01...