Sony KV-XG25M50 Service Manual
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Sony KV-XG25M50 Service Manual

Trinitron color tv
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SERVICE MANUAL

MODEL
KV-XG25M50
http://cxema.ru
COMMANDER DEST.
CHASSIS NO.
RM-952 Malaysia
SCC-U45D-A
1
2
3
4
5
6
7
8
9
-
0
JUMP
SOUND
2
PROGR
MODE
FAVORITE
TV
BG-3R
MODEL
COMMANDER DEST. CHASSIS NO.
TRINITRON
CHASSIS
COLOR TV
®

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Summary of Contents for Sony KV-XG25M50

  • Page 1: Service Manual

    SERVICE MANUAL BG-3R CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-XG25M50 RM-952 Malaysia SCC-U45D-A JUMP SOUND PROGR MODE FAVORITE TRINITRON COLOR TV ® http://cxema.ru...
  • Page 2 CARBON PAINTED ON THE CRT, AFTER REMOVING THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE ANODE. THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. – 2 –...

  • Page 3: Table Of Contents

    KV-XG25M50 RM-952 TABLE OF CONTENTS Section Title Page Section Title Page SELF DIAGNOSIS FUNCTION 5. DIAGRAMS ........ 4 5-1. Block Diagram ............37 1. GENERAL ................ 8 5-2. Circuit Boards Location .......... 39 5-3. Schematic Diagrams ..........40 2. DISASSEMBLY (1) Schematic Diagram of B6 Boards ......

  • Page 4: Self Diagnosis Function

    KV-XG25M50 RM-952 SELF DIAGNOSTIC FUNCTION The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically begin to flash. The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference.
  • Page 5 KV-XG25M50 RM-952 DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT 2 times 5 times Lamp ON 0.3 sec. Lamp OFF 3 sec. Lamp OFF 0.3 sec. STANDBY/SLEEP lamp Diagnostic Item Flash Count* +B overcurrent/overvoltage 2 times Vertical deflection stopped White balance failure 5 times * One flash count is not used for self-diagnostic.
  • Page 6 KV-XG25M50 RM-952 SELF-DIAGNOSTIC SCREEN DISPLAY For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurances of failure for confirmation on the screen: [To Bring Up Screen Test] In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below: [Screen display] / channel [5] / Sound volume [-] / Power ON...
  • Page 7 KV-XG25M50 RM-952 SELF-DIAGNOSTIC CIRCUIT IC301 IC001 IC003 Y/CHROMA JUNGLE SYSTEM MEMORY FROM IK-IN IO-8DAT B-DAT FROM O-LED [+B] Q604 C6 PROTECT IO-SDAT [V] Q509/507 [+B overcurrent ªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven...
  • Page 8 KV-XG25M50 RM-952 Using Your New TV – 8 – http://cxema.ru...
  • Page 9 KV-XG25M50 RM-952 Using Your New TV – 9 – http://cxema.ru...
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  • Page 11 KV-XG25M50 RM-952 Using Your New TV – 11 – http://cxema.ru...
  • Page 12 KV-XG25M50 RM-952 Using Your New TV – 12 – http://cxema.ru...
  • Page 13 KV-XG25M50 RM-952 Using Your New TV – 13 – http://cxema.ru...
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  • Page 24: Set-Up Adjustments

    KV-XG25M50 SECTION 3 RM-952 SET-UP ADJUSTMENTS • The following adjustments should be made when a complete Perform the adjustments in the following order : realignment is required or a new picture tube is installed. 1. Beam Landing • These adjustments should be performed with rated power 2.

  • Page 25: Convergence

    KV-XG25M50 RM-952 3-2. CONVERGENCE Preparation : • Before starting this adjustment, adjust the focus, horizontal size and vertical size. • Receive cross hatch/dot pattern. Purity • Pic. mode: Personal (PIC 90%, Brightness 50%, Color 50%, Sharpness 50%) BMC (Hexapole) Purity...
  • Page 26 KV-XG25M50 RM-952 Blue BMC (Hexapole) Magnet. Neck assy Neck assy If the red, green and blue dots are not balanced or aligned, then use the BMC magnet to adjust in the manner described below. Blue VM1 board VM1 board Note 1.

  • Page 27: Focus Adjustment

    KV-XG25M50 RM-952 Rotate TLV-2 VOL (29”, 34”) on DY 3-3. FOCUS ADJUSTMENT Rotate TLV VOL (25”) on DY Focus sdjustment should be completed before WB adjustment. XCV Rotate XCV Adj core on DY YCH Rotate YCH VOL on DY Insert...

  • Page 28: G2 (Screen) And White Balance Adjustments

    KV-XG25M50 RM-952 2. WHITE BALANCE ADJUSTMENT 3-4. G2 (SCREEN) AND WHITE BALANCE 1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS ADJUSTMENTS WITH COMMANDER). 1. G2 (SCREEN) ADJUSTMENT 2) Input white raster signal. 1) Set the PICTURE to normal. 3) Set the PICTURE to minimum.

  • Page 29: Circuit Adjustment

    KV-XG25M50 SECTION 4 RM-952 CIRCUIT ADJUSTMENTS 5-1. ADJUSTMENTS WITH COMMANDER 5-2. ADJUSTMENT METHOD Service adjustments to this model can be performed using the Item Number 00 of device GEO supplied Remote Commander RM-952. This explanation uses H-Position as an example.
  • Page 30 KV-XG25M50 RM-952 – 30 – http://cxema.ru...
  • Page 31 KV-XG25M50 RM-952 – 31 – http://cxema.ru...
  • Page 32 KV-XG25M50 RM-952 – 32 – http://cxema.ru...
  • Page 33 KV-XG25M50 RM-952 OPTION NOTE Item XTAL 4.43 XTAL 3.58 SECAM 2nd. Lang KV-XG25M50 NOTE: When Bit 7,6& 5 = 000, Only PAL color system is selected. When Bit 7 is selected, Auto, PAL & NTSC 4.43 Color system is enable.

  • Page 34: Picture Quality Adjustments

    KV-XG25M50 RM-952 Service Item 4-3. PICTURE QUALITY ADJUSTMENTS GEO : 00 H POSITION SUB COLOR ADJUSTMENT H SIZE 1. Input a PAL color-bar. PIN AMP 2. Set to the following condition: TILT V POSITION PICTURE 100%, BRIGHTNESS 50%, COLOR 50% V SIZE 3.

  • Page 35: Picture Distortion Adjustment

    KV-XG25M50 RM-952 4-7. PICTURE DISTORTION ADJUSTMENT (1) PICTURE DISTORTION ADJUSTMENT (2) Item Number 00 – 0B H-TRAPEZOID (Rotate RV1801) GEO 0 HPS (H POSITION) GEO 1 HSZ (H SIZE) GEO 2 PAP (PIN AMP) GEO 3 TLT (TRAPEZIUM) GEO 4...
  • Page 36 KV-XG25M50 RM-952 MEMO ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...
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  • Page 51 KV-XG25M50 RM-952 A (2/2) BOARD VOLTAGE LIST Pin No Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] Q002 Q509 Q307 Q005 Q511 Q308 104.9 Q101 Q600 Q310 12.4 Q201 Q601 Q312 Q202 Q602 Q313 16.5 Q205 12.0 12.3 Q603 16.5 Q314 Q206 16.5...
  • Page 52 KV-XG25M50 RM-952 B6 BOARD VOLTAGE LIST Pin No Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] IC8203 Q8309 Q8310 IC8204 Q8401 Q8402 Q8403 IC8501 Q8404 H BOARD VOLTAGE LIST Pin No Voltage[v] IC2901 Q2901 Q2902 – 66 – http://cxema.ru...
  • Page 53 KV-XG25M50 RM-952 C6 BOARD VOLTAGE LIST Pin No Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] IC1800 Q703 150.9<145.7 Q710 1.6(8.4)<1.7> 203.6 8.4(8.9) 151.8<146.7> Q704 Q711 155.1(153.6)<149.2> Q705 Q712 148.9<143.5> 12.7 Q706 Q714 J701 312.7<310.2> 151(149.2)<145.6> 0(0.7) 7.7(8.3) 155.9(152.8)<148.6> Q707 155.8<150.4>...

  • Page 54: Waveforms

    KV-XG25M50 RM-952 5-5. WAVEFORMS A BOARD WAVEFORMS 4.9Vp-p (V) 1.8Vp-p (V) 1.8Vp-p (V) 1.0Vp-p (H) 0.7Vp-p (V) PAL/SECAM NTSC PAL : 0.6Vp-p (H) 0.8Vp-p (H) 0.9Vp-p (H) SECAM : 0.8Vp-p (H) 0.7Vp-p (H) 0.7Vp-p (H) SECAM NTSC PAL/SECAM : 3.6Vp-p (H) NTSC : 3.9Vp-p (H)
  • Page 55 http://cxema.ru...
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  • Page 57 KV-XG25M50 RM-952 PRINTED WIRING BOARDS [CISPR, A/C FUSE, AV INPUT, MONITOR INPUT] – B Board – – 73 – http://cxema.ru...

  • Page 58: Semiconductors

    KV-XG25M50 RM-952 5-7 SEMICONDUCTORS DIODE CATHODE CATHODE CATHODE ANODE CATHODE CATHODE ANODE GATE ANODE ANODE ANODE AK04V0 ERC04-06SE D1NS4 D3SB60 DTZ10B 5P6M AU-01Z-V1 D1N20R DTZ-TT11-15B RU4AM-T3 EL1Z ERC06-15S MA111-(K8).S0 ERA22-08 HZS9.1NB2 RD7.5SB1-T1 GP08D RD39ES-B2 RD9.1S-B NNCD9.1A-T1 RD20ES-B2 UDZS-TE17-5.1B RD33EB3T RD30ESB2 UDZS-TE17-9.1B...
  • Page 59 KV-XG25M50 RM-952 LETTER SIDE 2SC2611 2SA1091-0 2SD2578-CA NJM78M09FA S-80743AL-S TDA8172 2SC2688-LK 2SC2551-0 TA7805S TOP VIEW Dual In-line Package TOP VIEW Pin 6~98 CXP86449-630S LA6510 LM358D (8PIN) SE-135N (64PIN) MM1319AFBE M24C08-BN6 (8PIN) (7PIN) TDA7429S (15PIN) NJM2903M (8PIN) µPC4558G2 (8PIN) UPD6124G-212 MARKING SIDE...

  • Page 60: Exploded Views

    KV-XG25M50 RM-952 SECTION 6 EXPLODED VIEWS NOTE: • • Items marked " ∗ " are not stocked since Items with no part number and no The components identified by description are not stocked because they are seldom required for routine...

  • Page 61: Chassis

    KV-XG25M50 RM-952 6-2. CHASSIS r: 7-685-648-71 SCREW BVTP 3 × 12 p: 7-685-663-71 SCREW BVTP 4 × 16 REF. NO.PART NO. DESCRIPTION REMARK * A-1372-917-A H2 BOARD MOUNTED * A-1136-161-A B6 BOARD COMPLETE 4-022-115-00 HOLDER, AC CORD ! 1-574-062-11 CORD, POWER (WITH CONNECTOR) 7.5A/250V...

  • Page 62: Electrical Parts List

    KV-XG25M50 SECTION 7 RM-952 The components identified by shading and mark ! are critical for safety. ELECTRICAL PARTS LIST Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK NOTE: • Items marked " ∗ " are not stocked since they •...
  • Page 63 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK C325 1-126-960-11 ELECT 20.00%50V C560 1-102-228-00 CERAMIC 470PF 10.00%500V...
  • Page 64 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK C647 1-163-275-11 CERAMIC CHIP 0.001UF 5.00% 50V D504...
  • Page 65 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK <FERRITE BEAD> JR101 1-216-295-11 SHORT JR102 1-216-295-11 SHORT...
  • Page 66 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK <IC LINK> R014 1-216-025-11 RES-CHIP 1/10W R015 1-216-025-11...
  • Page 67 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK R226 1-216-033-00 RES-CHIP 1/10W R371 1-216-083-00 RES-CHIP 1/10W...
  • Page 68 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK R567 1-216-105-91 RES-CHIP 220K 1/10W R642 1-249-419-11 CARBON 1.5K...
  • Page 69 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK <CRYSTAL> C8407 1-164-346-11 CERAMIC CHIP C8408 1-163-133-00 CERAMIC CHIP 470PF 5.00% 50V...
  • Page 70 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK <CHIP CONDUCTOR> R8411 1-216-113-00 RES-CHIP 470K 1/10W R8412...
  • Page 71 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK CN703 * 1-564-509-11 PLUG, CONNECTOR 6P Q1800 8-729-119-76...
  • Page 72 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK R1823 1-249-426-11 CARBON 5.6K 1/4W R2912 1-247-843-11 CARBON 3.3K...
  • Page 73 KV-XG25M50 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK D5904 8-719-110-88 RD39ES-B2 R5931 1-249-413-11 CARBON 1/4W D5905...
  • Page 74 Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK Sony Corporation English 2000KM70022-1 Sony Technology Malaysia Sdn. Bhd. Printed in Malaysia  9-872-229-01 Visual Entertainment General Area 2000. 11 – 90 – http://cxema.ru...

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