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Sony KV-25F3A Service Manual
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Sony KV-25F3A Service Manual

Trinitron color tv
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SERVICE MANUAL

MODEL
COMMANDER
KV-25F3A
KV-25F3B
KV-25F3D
MICROFILM
DEST.
CHASSIS NO.
RM-862
Italian
SCC-K05P-A
RM-862
French SCC-K01R-A
RM-862
AEP
SCC-K07S-A
MODEL
KV-25F3E
KV-25F3U
TRINITRON COLOR TV
— 1 —
KV-25F3
BE-3D
CHASSIS
DEST.
COMMANDER
RM-862
Spanish SCC-K06R-A
RM-862
UK
SCC-K04M-A
VTR 1
2
3
MDP
TV
¤
VIDEO
0
(
)
u
+
p
P
r
˚
;
+
REC
CH
_
.../
Ú/;
?
;
´
x
8
8
´/´
a/Å
A
c
≥
MENU
¸
PROGR
RM-862
R
CHASSIS NO.
R

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Summary of Contents for Sony KV-25F3A

  • Page 1: Service Manual

    KV-25F3 SERVICE MANUAL BE-3D CHASSIS MODEL MODEL DEST. COMMANDER DEST. CHASSIS NO. COMMANDER CHASSIS NO. KV-25F3A RM-862 Italian SCC-K05P-A KV-25F3E RM-862 Spanish SCC-K06R-A RM-862 French SCC-K01R-A RM-862 SCC-K04M-A KV-25F3B KV-25F3U KV-25F3D RM-862 SCC-K07S-A VTR 1 ¤ VIDEO ˚ …/ Ú/;...
  • Page 2 KV-25F3 SPECIFICATIONS Picture Tube Super Trinitron [FRONT] Approx. 63 cm (25 inches) 3 , Video input - phono jack (Approx. 59 cm picture measured 3 , Audio inputs - phono jacks diagonally) 3 , S video input - 4 pin DIN 110°...
  • Page 3 KV-25F3 [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. Model name Item l i o a i l s i l WARNING...
  • Page 4 KV-25F3 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

    PIECES SONT D'UNE IMPORTANCE CRITIQUE PUR LA SÉCURITÉ APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DU FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE NUMÉRO DE PIÉCE EST INDIQUÉ PUBLISHED BY SONY. DANS LE PRÉSENT MANUEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 20: Disassembly

    SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 2-2. CHASSIS ASSY REMOVAL One screw Rear Cover (BVTP 4x16) Four screws (BVTP 4x16) 2-3-2. SERVICE POSITION (2) 2-3-1. SERVICE POSITION (1) Insert into heatsink. Snap off from main bracket. Clip bracket into Beznet.

  • Page 21: Wire Dressing

    2-4. WIRE DRESSING 2-5. A BOARD REMOVAL CN301 Remove CN301 before removing A board. 2-7. A1 EXTENSION BOARDS 2-6. A EXTENSION BOARD A board BE-3D EXTENSION BOARD A board A1 board...

  • Page 22: Picture Tube Removal

    2-8. PICTURE TUBE REMOVAL • REMOVAL OF ANODE-CAP Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or Note: carbon paint on the CRT, after removing the anode. * REMOVING PROCEDURES. Two DGC holers Degaussing coil Spring extension...

  • Page 23: Removal And Replacement Of The Main-Bracket

    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 24: Set-Up Adjustments

    KV-25F3 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 1. Beam landing adjustments. 2. Convergence • Unless there are specific instructions to the contrary, 3.

  • Page 25: Convergence

    KV-25F3 3-2. CONVERGENCE Preparation: • Tilt the V.STAT magnet and adjust the static • Before starting this adjustment, adjust the focus, convergence by opening or closing the V.STAT magnet. horizontal size, and vertical size. • Minimize the brightness setting. • Provide a dot pattern.
  • Page 26 KV-25F3 • Operation of BMC (Hexapole) Magnet V.STAT Purity BMC (Hexapole) • The respective dot position resulting from moving each magnet interact, so be sure to perform adjustment while tracking. Use the H.STAT VR to adjust the red, green, and blue dots so they coincide at the centre of the screen (by moving the dots in the horizontal direction).

  • Page 27: White Balance

    KV-25F3 3-3. WHITE BALANCE (3) Screen corner convergence. If you are unable to adjust the corner convergence properly, G2 Setting correct them with the use of permalloy assemblies. 1. Switch the set into AV mode (apply no signal to the AV connectors).

  • Page 28: Circuit Adjustments

    KV-25F3 SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS PICTURE ADJUSTMENT Service adjustment to this model can be performed AFC mode with the supplied remote commander RM-862. REF position HOW TO ENTER INTO SERVICE MODE SCP BGR SCP BGF 1. Turn on the main power switch of the set and Trap Fo enter into standby mode.
  • Page 29 KV-25F3 SUB BRIGHTNESS ADJUSTMENT AGC ON/OFF 1. Input a Phillips pattern. Constant gain CDB 2. Set the picture control to minimum. FM prescale FMP 3. Enter into the Picture Adjustment Service Menu. Zwei mono-st WHI 4. Adjust the Sub-Brightness data so that there is barely a Zwei st-mono WLO difference between the 0 IRE and 10 IRE signal.
  • Page 30 KV-25F3 SYSTEM B/G, D/K, I & L I.F ADJUSTMENT DEFLECTION SYSTEM ADJUSTMENT 1. Input an off air signal of between 60-100dBuV / 75 ohm 1. Enter into the Geometry Adjustment Service Menu. terminated, via the tuner socket. 2. Select and adjust each item in order to obtain the optimum 2.

  • Page 31: Test Mode

    KV-25F3 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. Note: TT modes 40-49 require the TV to be in programme 59 before the command is accepted.
  • Page 32 KV-25F3 i t s i t s t i s t l i f t l i f y t i y t i t i s t i s t i s t i s These test modes can set the delay byte to any value 0-31 t i s which creates a (value x 20) mS delay.

  • Page 33: Be-3D Self Diagnostic Software

    KV-25F3 4-3. BE-3D SELF DIAGNOSTIC SOFTWARE The identification of errors within the BE-3D chassis is triggered in 1 of 2 ways :- 1: Bus 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 44: Semiconductors

    KV-25F3 5-4. SEMICONDUCTORS TDA7264 CXA2000Q-TL SE135N MC14052BDR2 ( TOP VIEW ) (TOP VIEW) TDA8395T 3 GND MSP3400C-PS MSP3410-15 CXA2040Q-T4 SDA5273CP-GEG ST24E32M6TR ( TOP VIEW ) TDA1387T TL072CDR L4941BV LM78L05ACZ (TOP VIEW) ( TOP VIEW ) ( TOP VIEW ) KM62256CLG PST593C-MMP-4P STR-S6709 TMS27PC020-15FML...
  • Page 45 KV-25F3 DTA144ES D4SB60L SLA-570KT3F 2SC2688-LK DTC114ES DTC143TS DTC144ES 2SC1740S-RT CATHODE ANODE 2SC4793 FMS-3FU DTC114TK DTC144EK 2SA1037K 2SA1162-G 2SC2412K 2SC4927-01 TLP721(D4-) MA3030H(TX) CATHODE GP08D AU-01Z-V1 ANODE RGP02 EG-1Z-V1 2SA1175-HFE EGP20G RGP10GPKG23 2SC2785-HFE EL1Z RGP15GPKG23 RU3YX EM1-V1 RU4AM-T3 EU-1-V1 ANODE EUZ-V1 RU4DS CATHODE FML-G12S CATHODE...

  • Page 46: Exploded Views

    4-203-728-01 BRACKET, J1-K2 *A-1630-490-A A1 BOARD, COMPLETE *A-1651-091-A J1 BOARD, COMPLETE *A-1649-019-A K2 BOARD, COMPLETE *A-1632-615-A A BOARD, COMPLETE (KV-25F3A) *4-203-315-01 BRACKET, MAIN *A-1632-617-A A BOARD, COMPLETE (KV-25F3B) *A-1632-616-A A BOARD, COMPLETE (KV-25F3D) 1-751-680-11 CORD, POWER (WITH NOISE FILTER) *A-1632-614-A A BOARD, COMPLETE (KV-25F3E) 2.5A/250V...

  • Page 47: Picture Tube

    COIL, DEGAUSSING 4-203-288-11 BUTTON, POWER 4-308-870-00 CLIP, LEAD WIRE 4-203-287-01 WINDOW ORNAMENTAL 1-452-032-00 MAGNET, DISK; 10MM Ø 4-203-289-31 DOOR, CONTROL (KV-25F3A/25F3D) 1-452-094-00 MAGNET, ROTATABLE DISK; 15MM Ø 4-203-289-21 DOOR, CONTROL (KV-25F3B/25F3E/25F3U) X-4387-214-1 PERMALLOY ASSY, CORRECTION 4-042-940-21 UNIT LOCK 3-701-007-00 BAND, BINDING 1-504-819-11 SPEAKER (7.5X13CM)

  • Page 48: Box Speaker

    KV-25F3 6-3. BOX SPEAKER REF NO PART NO DESCRIPTION REMARK REF NO PART NO DESCRIPTION REMARK A-1678-131-A BOX (L) ASSY, SPEAKER 102-104 A-1678-133-A WOOFER ASSY 1-505-675-11 LOUD SPEAKER 1-544-767-11 SPEAKER (13CM) 4-039-358-01 SCREW (4X16), (+) BV TAPPING A-1678-132-A BOX (R) ASSY, SPEAKER 102-104 4-039-355-11 SCREW (4X12), (+) BV TAPPING...

  • Page 49: Electrical Parts List

    KV-25F3 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. SECTION 7 Replace only with the part number Ne les remplacer que par une piece specified.
  • Page 50 1-164-346-11 CERAMIC CHIP 1MF C213 1-163-133-00 CERAMIC CHIP 470PF *************************************************************** C214 1-164-346-11 CERAMIC CHIP 1MF C215 1-163-133-00 CERAMIC CHIP 470PF *A-1632-615-A A BOARD, COMPLETE (KV-25F3A) C216 1-126-967-11 ELECT 47MF ***************** *A-1632-617-A A BOARD, COMPLETE (KV-25F3B) C217 1-164-232-11 CERAMIC CHIP 0.01MF...
  • Page 51 1-164-346-11 CERAMIC CHIP 1MF < FILTER > C310 1-164-346-11 CERAMIC CHIP 1MF CF120 1-409-327-00 TRAP, CERAMIC (6.5MHZ) C311 1-164-346-11 CERAMIC CHIP 1MF (KV-25F3A/25F3B/25F3D/25F3E) C312 1-164-505-11 CERAMIC CHIP 2.2MF C313 1-163-141-00 CERAMIC CHIP 0.001MF < CONNECTOR > C315 1-216-295-00 CONDUCTOR, CHIP...
  • Page 52 1-216-049-00 METAL GLAZE 1/10W 8-759-394-57 IC PST593C-MMP-4P 1-216-025-00 METAL GLAZE 1/10W IC201 8-752-076-06 IC CXA2040Q-T4 1-216-025-00 METAL GLAZE 1/10W IC202 8-759-376-56 IC MSP3400C-PS-C6-T (KV-25F3A/25F3D) 1-216-013-00 METAL GLAZE 1/10W 8-759-464-53 IC MSP3410D-PS-F7-T 1-216-065-00 METAL GLAZE 4.7K 5% 1/10W (KV25F3B/25F3E/25F3U) 1-216-041-00 METAL GLAZE 1/10W...
  • Page 53 1/10W R134 1-216-001-00 METAL GLAZE 1/10W 1-216-025-00 METAL GLAZE 1/10W R135 1-216-037-00 METAL GLAZE 1/10W 1-216-025-00 METAL GLAZE 1/10W (KV-25F3A/25F3B/25F3D/25F3E) 1-216-025-00 METAL GLAZE 1/10W 1-216-045-00 METAL GLAZE 1/10W 1-216-025-00 METAL GLAZE 1/10W (KV-25F3U) 1-216-025-00 METAL GLAZE 1/10W R136 1-216-033-00 METAL GLAZE...
  • Page 54 R328 1-216-129-00 METAL GLAZE 2.2M 5% 1/10W R329 1-216-089-00 METAL GLAZE 1/10W **************************************************************************** R330 1-216-025-00 METAL GLAZE 1/10W 1-693-338-11 IF BLOCK (KV-25F3A/25F3D/25F3E) R331 1-216-059-00 METAL GLAZE 2.7K 5% 1/10W ******** R332 1-216-025-00 METAL GLAZE 1/10W 1-693-339-11 IF BLOCK (KV-25F3U) R333...
  • Page 55 Replace only with the part number Ne les remplacer que par une piece IF ( IF ( KV-25F3A/25F3D/ specified. portant le numero specifie. KV-25F3B 25F3E/25F3U REF.NO. PART NO. DESCRIPTION REMARK REF.NO.
  • Page 56 KV-25F3 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 IF ( specified.
  • Page 57 KV-25F3 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 58 KV-25F3 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 59 KV-25F3 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 60 KV-25F3 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 K1 specified.
  • Page 61 KV-25F3 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 J J1 specified.
  • Page 62 8-451-404-23 DEFLECTION YOKE (Y25GXABA) V901 8-733-254-05 PICTURE TUBE (SD-257)(M60LCS60X) 8-733-254-76 ITC **************************************************************** ACCESSORIES AND PACKING MATERIALS ********************************* 1-765-654-11 CABLE SPEAKER 4-203-729-41 MANUAL, INSTRUCTION (KV-25F3A)(ITALIAN) 4-203-729-51 MANUAL, INSTRUCTION (KV-25F3B) (FRENCH/SWEDISH/BELGIUM) 4-203-729-11 MANUAL, INSTRUCTION (KV-25F3D) (DUTCH/GREEK/GERMAN/AUSTRIAN) 4-203-729-71 MANUAL, INSTRUCTION (KV-25F3E)(SPANISH) 4-203-729-81 MANUAL, INSTRUCTION (KV-25F3E) (PORTUGUESE/FINNISH/DANISH/NORWEGIAN/...
  • Page 63 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 Sony UK 97CP7150-1 Service Promotions Div. 9-974-952-01 Printed in U.K. © 1997.3 — 90 —...

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