Table of Contents
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SERVICE MANUAL
MODEL
COMMANDER
KV-25K1A
KV-25K1B
KV-25K1D
KV-25K1E
MICROFILM
DEST.
CHASSIS NO.
RM-862
Italian
SCC-K43H-A
RM-862
French SCC-K45H-A
RM-862
AEP
SCC-K41H-A
RM-862
Spanish SCC-K42H-A
MODEL
KV-25K1K
KV-25K1R
KV-25K1U
´/´
a/Å
TRINITRON COLOR TV
— 1 —
KV-25K1
AE-4
CHASSIS
DEST.
COMMANDER
RM-862
OIRT
RM-862
Russian SCC-K44K-A
RM-862
UK
TV
VTR 1
2
3
MDP
¤
VIDEO
0
(
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u
+
p
P
r
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;
+
REC
CH
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8
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≥
MENU
¸
PROGR
RM-862
R
CHASSIS NO.
SCC-K44J-A
SCC-K46D-A
R
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Table of Contents
Related Manuals for Sony KV-25K1A
Summary of Contents for Sony KV-25K1A
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Page 1: Service Manual
KV-25K1 SERVICE MANUAL AE-4 CHASSIS MODEL MODEL DEST. COMMANDER DEST. CHASSIS NO. COMMANDER CHASSIS NO. KV-25K1A RM-862 Italian SCC-K43H-A KV-25K1K RM-862 OIRT SCC-K44J-A RM-862 French SCC-K45H-A RM-862 Russian SCC-K44K-A KV-25K1B KV-25K1R RM-862 SCC-K46D-A KV-25K1D RM-862 SCC-K41H-A KV-25K1U KV-25K1E RM-862 Spanish SCC-K42H-A VTR 1 ¤... - Page 2 KV-25K1 a i l 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) 100˚ deflection 3 S video input - 4 pin DIN Headphone jack - stereo minijack Rear/Front Terminals Sound output...
- Page 3 KV-25K1 [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 t l i &...
- Page 4 KV-25K1 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...
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Page 5: Table Of Contents
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS 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 17: Disassembly
SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL 2-2. CHASSIS ASSY REMOVAL Nine screws Rear Cover (BVTP 4x16) 2-4. G BOARD REMOVAL 2-3. SERVICE POSITION Push the claw of the bracket in the direction of the arrow and remove. -
Page 18: A Board Removal
2-5. A BOARD REMOVAL 2-6. PICTURE TUBE REMOVAL Push the claw of the bracket in the direction of the arrow Holder DGC and remove. Degaussing coil Spring tension C board Speaker Two Screws Chassis Neck Assy Four tapping screws (M) Deflection •... -
Page 19: 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 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 20: Set-Up Adjustments
KV-25K1 SECTION 3 SET-UP ADJUSTMENTS • Carry out the following adjustments in this order: • When complete readjustment is necessary or a new picture 3-1. Beam landing tube is installed, carry out the following adjustments. 3-2. Convergence • Unless there are specific instructions to the contrary, carry 3-3. -
Page 21: Convergence
KV-25K1 Center dot Green Blue Fig.3-4 Disk magnets or H.STAT V.STAT rotatable disk convergence Magnete statico verticale magnets correct Purity control corrects control these areas (a-d). this area. C Board RV3702 (H.STAT) RV3701 H.STAT convergence Screen (G2) Deflection yoke positioning •... - Page 22 KV-25K1 3By rotating the V.STAT magnet clockwise, the red, green Layout of each control and blue dots move as shown below. Purity magnet BMC (Hexapole) magnet V.STAT convergence magnet Y-splitting axis correction magnet 4By opening or closing the V.STAT magnet, the red, green and blue dots move as shown below.
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Page 23: Focus
KV-25K1 3-3. Focus Video Proc. TDA4780 1. Receive a television broadcast signal. 2. Normalize the picture setting. 3. Adjust the focus control on the flyback transformer for the best focus at the center of the screen. Bring only the center area of the screen into focus, the magenta-ring appears on the screen. -
Page 24: Circuit Adjustments
KV-25K1 SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS Service adjustment to this model can be performed with the supplied remote commander, RM-862. HOW TO ENTER INTO SERVICE MODE Turn on the main power switch of the set while pressing the PROG + (plus) and PROG (minus) buttons on the front panel. - Page 25 KV-25K1 SDA9361 (DEFLECT. CONT.) y t i n i l n i l c i t z l l " 5 " 9 " 5 " 9 — 25 —...
- Page 26 KV-25K1 TDA4780 (VIDEO PROC.) * Switch OFF for White balance Adj and Switch ON for Shipping Condition — 26 —...
- Page 27 KV-25K1 V SIZE DEFLECTION SYSTEM ADJUSTMENT Enter into the service mode and select 'Deflect cont.'.The 'Deflect cont. SDA9361' adjustment menu will be displayed. V POS Select and adjust each item in order to get an optimum image. V LIN y t i H SIZE H PIN CUSH H TILT...
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Page 28: Volume Electrical Adjustments
KV-25K1 4-2. VOLUME ELECTRICAL ADJUSTMENTS Sub Brightness Adjustment Enter Service Mode (Device Menu). Select 'SUB ADJUST MENU'. Adjust the value according to the following advice. Sub Color Adjustment Input a PAL color bar signal. Connect an oscilloscope to CN3703. Enter into 'SERVICE MODE'. Choose 'SUB ADJUST'. -
Page 29: Test Mode 2
KV-25K1 4-3. TEST MODE 2: Is available by pressing the 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 Standby Mode. c t i i n i &... - Page 30 KV-25K1 l l a ' t f ' t h ' f f — 30 —...
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Page 44: Circuit Boards Location
KV-25K1 5-4. SEMICONDUCTORS LM393P PC123F2 SDA9288X-A141 BA7046F PC123FY2 M5216P TDA8755T-T BA7046F-T1 ST24C16FB6 MB3793-42PNF TDA2822M MB3793-42PNF-ER UPC393C NJM2240M ( TOP VIEW ) PQ05RF21 STV9379 LM78L05ACZ ( TOP VIEW ) LM78L12ACZ L78L05ACZ-AP CXA1855Q-T6 L78L12ACZ-AP 1 : V IN 2 : V OUT 3 : GND 4 : ON/OFF CONTROL TC4S66F... - Page 45 KV-25K1 2SC4834NP-F09 BF421L-AMMO TDA9143/N2 IRF620 2SC2500-B TDA9144/N2 2SC2551-O TDA9170T 2SC2551O-TPE2 ( TOP VIEW ) TMS4C2972-26DTR E C B TMS4C2972-28DTR DAN202K 2SA1837 DAN202K-T-146 BF871-127 ( TOP VIEW ) CXA1875AM-T4 HEF4053BT MC14052BDBZ SN74LS221D 74HCT4046AD/S470 DAP202K DAP202K-T-146 DTC144EK DTA144EK DTC144EK-T146 DTA144EK-T146 2SC2611 DTC114EK DTC144EKA-T146 2SC2688-LK DTC114EKA-T146...
- Page 46 KV-25K1 D10SC4M MA73-TX S1VB20-S S1VB40 MA3030-H(TX) MA3056M-TX MA3062M-TX MA3033-L D4SB60L RD5.6M-B2 MA3033L-TX D4SB60L-F RBA-402L SLA-570KT3F CATHODE ANODE MA3051L-TX CATHODE ERC38-06 CATHODE ANODE ANODE MTZJ-T-77-13B MTZJ-33C ERD08M-15 MTZJ-T-77-15B MTZJ-39C MTZJ-T-77-2.2A RD15ES-B2 MTZJ-T-77-33C RD5.6ESB2 MTZJ-T-77-39C RD9.1ESB2 MTZJ-T-77-5.6B 1SS119-25 MTZJ-T-77-9.1B 1SS119-25TD MTZJ-13B CATHODE CATHODE ANODE ANODE...
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Page 48: Exploded Views
PART NO DESCRIPTION REMARK REF NO PART NO DESCRIPTION REMARK 1-571-433-21 SWITCH, PUSH (AC POWER) *A-1632-601-A A BOARD, COMPLETE (KV-25K1A/25K1D) *4-203-457-01 BRACKET, MAIN *A-1632-604-A A BOARD, COMPLETE (KV-25K1B) *A-1632-602-A A BOARD, COMPLETE (KV-25K1E) 1-751-680-11 CORD, POWER (WITH NOISE FILTER) *A-1632-605-A A BOARD, COMPLETE (KV-25K1K) 2.5A/250V... -
Page 49: A Board
KV-25K1 6-2. PICTURE TUBE The components identified by Les composants identifies par une shading and marked are critical 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. -
Page 50: Electrical Parts List
KV-25K1 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 51 KV-25K1 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 52 KV-25K1 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 53 KV-25K1 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 54 REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK *A-1632-601-A A BOARD,COMPLETE (KV-25K1A/25K1D) C163 1-163-009-11 CERAMIC CHIP 0.001MF **************** C164 1-164-232-11 CERAMIC CHIP 0.01MF *A-1632-604-A A BOARD,COMPLETE (KV-25K1B) C165 1-164-346-11 CERAMIC CHIP 1MF ****************...
- Page 55 1-527-992-31 OSCILLATOR, CERAMIC C1314 1-163-275-11 CERAMIC CHIP 0.001MF C1315 1-164-232-11 CERAMIC CHIP 0.01MF CF200 1-409-327-00 TRAP, CERAMIC (6.5MHZ) C1316 1-164-232-11 CERAMIC CHIP 0.01MF (KV-25K1A/25K1B/25K1D/ 25K1E/25K1K/25K1R) C1318 1-164-004-11 CERAMIC CHIP 0.1MF C1320 1-164-232-11 CERAMIC CHIP 0.01MF C1321 1-164-232-11 CERAMIC CHIP 0.01MF C1322 1-164-232-11 CERAMIC CHIP 0.01MF...
- Page 56 D104 8-719-158-49 DIODE RD12SB2 IC104 8-759-514-57 IC BA7046F D105 8-719-158-49 DIODE RD12SB2 IC201 8-759-376-56 IC MSP3400C-PS-C6-T D199 8-719-914-43 DIODE DAN202K (KV-25K1A/25K1D/25K1K/25K1R) 8-759-437-33 IC MSP3410C-PS-F7-T-ND D200 8-719-158-49 DIODE RD12SB2 (KV-25K1B/25K1E/25K1U) D201 8-719-158-49 DIODE RD12SB2 D202 8-719-158-49 DIODE RD12SB2 IC302 8-759-439-59 IC TDA9144/N2...
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Page 57: C Board
1-216-033-00 METAL GLAZE 1/10W R168 1-216-067-00 METAL GLAZE 5.6K 5% 1/10W R169 1-216-067-00 METAL GLAZE 5.6K 5% 1/10W R107 1-216-295-91 CONDUCTOR, CHIP (KV-25K1A/25K1D/25K1E/ R170 1-216-021-00 METAL GLAZE 1/10W 25K1K/25K1R/25K1U) R171 1-216-021-00 METAL GLAZE 1/10W R108 1-216-057-00 METAL GLAZE 2.2K 5% 1/10W... - Page 58 R204 1-216-049-91 METAL GLAZE 1/10W R1057 1-216-049-91 METAL GLAZE 1/10W R205 1-216-037-00 METAL GLAZE 1/10W R1060 1-216-049-91 METAL GLAZE 1/10W (KV-25K1A/25K1B/25K1D/ R1061 1-216-049-91 METAL GLAZE 1/10W 25K1E/25K1K/25K1R) R1062 1-216-049-91 METAL GLAZE 1/10W R207 1-216-039-00 METAL GLAZE 1/10W R1063 1-216-073-00 METAL GLAZE...
- Page 59 1-216-033-00 METAL GLAZE 1/10W R1336 1-216-653-11 METAL CHIP 1.2K 0.50% 1/10W < TUNER > R1337 1-216-666-11 METAL CHIP 4.3K 0.50% 1/10W TU101 1-693-338-21 TUNER/VIF (AEP) (KV-25K1A/25K1D/25K1E/ R1338 1-216-041-00 METAL GLAZE 1/10W 25K1K/25K1R) R1339 1-216-041-00 METAL GLAZE 1/10W 1-693-340-21 TUNER/VIF (FR) (KV-25K1B) R1340...
- Page 60 KV-25K1 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.
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Page 61: T Board
KV-25K1 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 62 KV-25K1 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 63 KV-25K1 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 64 KV-25K1 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 65 KV-25K1 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 66 REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK < TRANSISTOR > *A-1652-042-A T BOARD, COMPLETE(KV-25K1A/25K1D/25K1E/ ***************** 25K1K/25K1R) Q1701 8-729-901-59 TRANSISTOR BF199 *A-1652-044-A T BOARD, COMPLETE (KV-25K1B) Q1702 8-729-216-22 TRANSISTOR 2SA1162-G ***************** Q1703 8-729-017-05 TRANSISTOR 2SA1837...
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Page 67: B Board
R5012 1-216-073-00 METAL GLAZE 1/10W R5055 1-216-025-91 METAL GLAZE 1/10W (KV-25K1B) R5056 1-216-051-00 METAL GLAZE 1.2K 5% 1/10W R5015 1-216-295-91 CONDUCTOR, CHIP (KV-25K1A/25K1D/25K1E/ (KV-25K1B) 25K1K/25K1R/25K1U) R5057 1-216-025-91 METAL GLAZE 1/10W R5016 1-216-057-00 METAL GLAZE 2.2K 5% 1/10W (KV-25K1B) R5017 1-216-035-00 METAL GLAZE... - Page 68 ACCESSORIES AND PACKING MATERIALS ********************************* 1-769-175-11 CABLE ANTENNA (WITH FILTER) *4-203-674-01 CUSHION (LOWER) (ASSY) *4-203-671-01 CUSHION (UPPER) (ASSY) *4-203-670-01 INDIVIDUAL CARTON 4-203-694-41 MANUAL, INSTRUCTION (KV-25K1A) (ITALIAN) 4-203-694-51 MANUAL, INSTRUCTION (KV-25K1B) (FRENCH/SWISS/BELGIUM) 4-203-694-11 MANUAL, INSTRUCTION (KV-25K1D) (GERMAN/DUTCH/AUSTRIAN/TURKISH/GREEK) 4-203-694-71 MANUAL, INSTRUCTION (KV-25K1E)