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Sony KV-XA21M93 Service Manual
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Sony KV-XA21M93 Service Manual

Sony KV-XA21M93 Service Manual

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SERVICE MANUAL

MODEL
COMMANDER DEST.
KV-XA21M93
RM-952
CHASSIS NO.
Hong Kong SCC-U50A-A
1
2
3
4
5
6
7
8
9
÷
0
JUMP
SOUND
Á
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-XA21M93

  • Page 1: Service Manual

    SERVICE MANUAL BG-3R CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-XA21M93 RM-952 Hong Kong SCC-U50A-A ÷ JUMP SOUND Á PROGR MODE FAVORITE TRINITRON COLOR TV ®...
  • 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-XA21M93 RM-952 TABLE OF CONTENTS Section Title Page Section Title Page SELF DIAGNOSIS FUNCTION 5. DIAGRAMS ........ 4 5-1. Block Diagram ............35 1. GENERAL ................ 7 5-2. Circuit Board Location ..........37 5-3. Schematic Diagrams ..........38 2. DISASSEMBLY (1) Schematic Diagrams of F, J2 and C1 Boards ..

  • Page 4: Self Diagnosis Function

    KV-XA21M93 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-XA21M93 RM-952 2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT Diagnostic Item Flash Count* 2 times +B overcurrent/overvoltage 2 times Vertical deflection stopped 3 times White balance failure 5 times Lamp ON 0.3 sec. * One flash count is not used for self-diagnostic.
  • Page 6 KV-XA21M93 RM-952 5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”. Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
  • Page 8 AUDIO VIDEO VIDEO IN VIDEO OUT L(MONO) SELECT AUTO PROGR PROGR AUTO PROGR L(MONO) AUDIO VIDEO VIDEO IN VIDEO OUT...
  • Page 9 L(MONO) SELECT AUTO PROGR PROGR – WOOFER (8 ) L(MONO)
  • Page 11 JUMP SOUND PROGR MODE L(MONO) SELECT AUTO PROGR PROGR FAVORITE AUTO PROGR...
  • Page 12 JUMP SOUND PROGR MODE L(MONO) SELECT AUTO PROGR PROGR FAVORITE SELECT AUTO PROGR PROGR...
  • Page 14 SOUND PROGR MODE FAVORITE...
  • Page 15 JUMP SOUND PROGR MODE FAVORITE...
  • Page 16 JUMP SOUND PROGR MODE JUMP SOUND PROGR MODE FAVORITE FAVORITE L(MONO) SELECT AUTO PROGR PROGR...
  • Page 17 L(MONO) SELECT AUTO PROGR PROGR...
  • Page 19 AUTO SELECT PROGR PROGR (MONO) L(MONO) SELECT AUTO PROGR PROGR L(MONO)
  • Page 22 Anode Button...

  • Page 23: Set-Up Adjustments

    KV-XA21M93 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 24 KV-XA21M93 RM-952 3-2. CONVERGENCE Preparation : • Before starting this adjustment, adjust the focus, horizontal size and vertical size. • Receive dot/hatch signal. Purity • Pic mode: Personal (Pic 90%, Brightness 50%, Col 50 %, Hue 50%, Shp 50%). BMC (Hexapole)

  • Page 25: Convergence Adjustment

    KV-XA21M93 RM-952 YCH Rotate YCH VOL on DY BMC (Hexapole) Magnet. If the red, green and blue dots are not balanced or aligned, then Insert Correction Plate to DY Pocket (Left or use the BMC magnet to adjust in the manner described below.

  • Page 26: Focus Adjustment

    KV-XA21M93 RM-952 3-3. FOCUS ADJUSTMENT Fix a Permalloy assy corresponding to the misconverged areas. FOCUS adjustment should be completed before W/B adjustment. Receive digital monoscope pattern. Set "Picture Mode" to "DYNAMIC". 3. Adjust focus VR so that the center of screen becomes just focus.

  • Page 27: G2 (Screen) And White Balance Adjustments

    KV-XA21M93 RM-952 2. WHITE BALANCE ADJUSTMENT 3-4. G2 (SCREEN) AND WHITE BALANCE 1) Set to Service Mode (Refer Section 5-1: 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 28: Circuit Adjustments

    KV-XA21M93 SECTION 4 RM-952 CIRCUIT ADJUSTMENTS 4-1. ADJUSTMENTS WITH COMMANDER 4-2. ADJUSTMENT METHOD Service adjustments to this model can be performed using the sup- Item Number 00 of device GEO plied Remote Commander RM-952 This explanation uses H-Position as an example.
  • Page 32 KV-XA21M93 RM-952 ITEM INFORMATION No. OPB0 OP1 Item XTAL 4.43 XTAL 3.58 SECAM 2nd. Lang KV-XA21M93 No. OPB1 OP2 Item NICAM HDEV Thai Bil Dis Fav. DVD Input AV Input KV-XA21M93 AV Input 00 = no AV Input 01 = 1 AV Input...

  • Page 33: Picture Quality Adjustments

    KV-XA21M93 RM-952 4-3. PICTURE QUALITY ADJUSTMENTS 4-4. DEFLECTION ADJUSTMENT NORMAL MODE (50Hz) SUB COLOR ADJUSTMENT Set to Service Mode. 1. Select Video. Using the 1 and 4 button, select category GEO (Service 2. Input a PAL color-bar. Mode). 3. Set to the following condition: Raise/lower the data using the 3 and 6 buttons.

  • Page 34: Picture Distortion Adjustment

    KV-XA21M93 RM-952 4-6. PICTURE DISTORTION ADJUSTMENT (1) Item Number 00 – 0B GEO 0 HPS (H POSITION) GEO 1 HSZ (H SIZE) GEO 2 PAP (PIN AMP) GEO 3 TLT (TRAPEZIUM) GEO 4 VPS (V POSITION) GEO 5 VSZ (V SIZE)

  • Page 35: Diagrams

    AUDIO Jack STEREO DECODER CN3421 J3421 TV L in PROSESSOR (MSP3415) Model with Tweeter <slave: 84H> TV R in IC203 (KV-XA21M93 only) (Tweeter Terminal) TU101 TDA7442S INTERNAL NTSC BTF-WG441 <slave: 80H> COMB FILTER SP ASSY AUDIO OUT IC302 IC201 TDA9183T...

  • Page 36: Circuit Board Location

    KV-XA21M93 KV-XA21M93 RM-952 RM-952 5-3. SCHEMATIC DIAGRAM 5-2. CIRCUIT BOARDS LOCATION Note: • All capacitors are in µF unless otherwise noted. • All electrolytic capacitors are rated at 50V unless otherwise noted. • All resistors are in ohms. kΩ = 1000Ω, MΩ = 1000kΩ...

  • Page 37: Schematic Diagrams Of F, J2 And C1 Boards

    KV-XA21M93 KV-XA21M93 RM-952 RM-952 (1) Schematic Diagrams of F, J2 and C1 Boards (MAINTAIN UNTIL DCN R336) CN4601 JW4603 F4601 T4601 T4602 T3.15A T.L.F AC IN AC OUT JW4604 R4601 AC IN T.L.F AC OUT 1/2W CN4602 JW4601 CN4603 JW4602 :TAB B-SSSBG3R-HK.-F..XA21...

  • Page 38: Schematic Diagram Of A Board

    KV-XA21M93 KV-XA21M93 RM-952 RM-952 (2) Schematic Diagram of A Board CN303 CN302 TO B3 BOARD CN1404 R336 TO B3 BOARD CN1406 JOINT A1 JOINT A2 JOINT A3 JOINT A4 JW080 (MAINTAIN UNTIL DCN R360) JOINT A5 JOINT A6 R324 1.5k...
  • Page 39 KV-XA21M93 KV-XA21M93 RM-952 RM-952 CN101 CN102 CN204 CN203 TO B3 BOARD CN1407 :S-MICRO :S-MICRO CN1405 TO B3 BOARD CN106 TO B3 BOARD CN104 CN3603 CN205 CN105 :TAB TU101 BTF-WG441 JR111 C112 JR108 C110 JR109 470p R108 R111 B:CHIP R106 R103...
  • Page 40 KV-XA21M93 KV-XA21M93 RM-952 RM-952 TO PAGE 1 R901 L901 R902 D312 :FPRD :FPRD 1SS355TE-17 R377 L902 D311 C336 1SS355TE-17 R345 J901 R339 :CHIP C901 JACK 0.01 :CHIP B:CHIP :MPS R348 R376 IC001 C337 C341 CXP86449-630S :RN-CP :CHIP C902 0.22 R332 0.01...
  • Page 41 KV-XA21M93 KV-XA21M93 RM-952 RM-952 TO PAGE 1 TO PAGE 1 C338 4700p B:CHIP R370 R333 :CHIP :CHIP R306 R365 (MAINTAIN UNTIL :CHIP DCN R360) :CHIP R375 R350 3.3k :CHIP D309 RD5.1SB-T2 JOINT A21 Q315 UN2213 JOINT A22 JOINT A23 JOINT A24...
  • Page 42 KV-XA21M93 KV-XA21M93 RM-952 RM-952 (MAINTAIN UNTIL DCN R360) JOINT A1 CN507 JOINT A2 R501 :S-MICRO JOINT A3 TO C BOARD JOINT A4 R500 CN1801 JOINT A5 JOINT A6 C512 0.033 B:CHIP R596 L516 R502 C514 C500 4.7k 0.047 L515 145910441...
  • Page 43 KV-XA21M93 KV-XA21M93 RM-952 RM-952 (MAINTAIN UNTIL DCN R360) JOINT A1 CN507 JOINT A2 R501 :S-MICRO JOINT A3 TO C BOARD JOINT A4 R500 CN1801 JOINT A5 JOINT A6 C512 0.033 B:CHIP R596 L516 R502 C514 C500 4.7k 0.047 L515 200V...
  • Page 44 KV-XA21M93 KV-XA21M93 RM-952 RM-952 TO PAGE 2 (MAINTAIN UNTIL DCN R360) JOINT A13 T603 C624 R650 0.0022 D615 R653 C630 RU4AM-T3 4.7k IC603 JOINT A14 FB604 NJM78M09FA 160V D622 Q607 JOINT A15 2SD2144S-UVW C634 C642 C616 2200 JW066 0.022 ST-BY...
  • Page 45 KV-XA21M93 KV-XA21M93 RM-952 RM-952 TO PAGE 2 TO PAGE 2 TO C BOARD JOINT A13 CN CN701 JOINT A14 R526 R522 C513 4.7k 330p :CHIP :RN-CP CH:CHIP 200V C566 CN505 IC503 220p JOINT A15 TDA8172 500V L518 C522 V.OUT R594...
  • Page 46 KV-XA21M93 KV-XA21M93 RM-952 RM-952 5-4. VOLTAGE LIST MEASUREMENT A (1/2) BOARD VOLTAGE LIST A (2/2) BOARD VOLTAGE LIST Pin No Voltage[v] Pin No Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] IC001 Q206 Q403 IC003 4.5 <4.0>...
  • Page 47 KV-XA21M93 RM-952 C1 BOARD VOLTAGE LIST Pin No Voltage[v] Pin No. Voltage[v] Pin No. Voltage[v] IC700 J701 325.8 (328.2) <323.4> Q5963 134.1 67.1 155.8 (153.2) <150.3> 134.7 158 (155.7) <153.7> Q5965 4.9<5.3> 160.8 <154.57> 67.1 194.5 Q700 160.5 <154> 3.6 (3.4) <4.3>...

  • Page 48: Waveforms

    KV-XA21M93 RM-952 5-5. WAVEFORMS A BOARD WAVEFORMS PAL/SECAM NTSC 4.8Vp-p (V) 5.0Vp-p (V) 4.4Vp-p (V) 1.2Vp-p (H) 1.2Vp-p (H) PAL/SECAM NTSC 0.9Vp-p (H) 1.2Vp-p (H) 1.0Vp-p (H) 1.0Vp-p (H) 0.9Vp-p (V) PAL/SECAM NTSC 3.5Vp-p 1.4Vp-p (H) 3.2Vp-p (H) 3.2Vp-p (H) 3.2Vp-p (H)

  • Page 49: Printed Wiring Boards And Parts Location

    KV-XA21M93 KV-XA21M93 RM-952 RM-952 5-6. PRINTED WIRING BOARDS AND PARTS LOCATION PRINTING WIRING BOARD [SYSTEM CONTROLLER, Y/C JUNGLE, DEFLECTION, TUVIF, FRONT AMP, POWER SUPPLY] – A Board – A BOARD Q606 F-11 D531 Q607 H-13 D533 Q608 D-12 IC001 B-10...
  • Page 50 KV-XA21M93 KV-XA21M93 RM-952 RM-952 PRINTING WIRING BOARD [AUDIO PROCESSOR, AUDIO AMP, SUB TUNER, AV IN/OUT, VM DRIVER] [FRONT AV IN, SENSOR, POWER SW] [FRONT AV IN, SENSOR, POWER SW] – C1 Board – – F Board – – J2 Board –...

  • Page 51: Semiconductors

    KV-XA21M93 RM-952 5-7 SEMICONDUCTORS DIODE CATHODE CATHODE CATHODE ANODE CATHODE ANODE ANODE ANODE ERD29-08J AU-01Z-V1 DTZ-TT11-15B D1NS4 1SS302 ON3171-R EL1Z DTZ10B NEQS04 ERA22-08 MA111-(K8).S0 RD6.8ES-B1 ERC04-06SE RD5.1SB-T2 RD6.8SB-T1 GP08D RD5.6S-B RD20ES-B2 HSS83TD RD9.1S-B RD30ES-B2 31DQ06-FC5 1SS355TE17 RD39-ES-B2 RU4AM-T3 1SS119-25 RS3FS...
  • Page 52 KV-XA21M93 RM-952 MARKING SIDE VIEW TOP VIEW TOP VIEW Single In -line Package Dual In-line Package Pin 8~98 Pin 6~98 MM1319AFBE CXP86449-630S RU-1P NJM2903M CXA2159S M24C08-BN6 TDA7442DO13TR TDA9183T CATHODE ANODE TDA8172 S-80743AL-A7-S SBX3081-(01)30 LA6510 NJM78M09FA SE-135N MARKING SIDE VIEW Zig-zag In -line Package...

  • Page 53: Exploded Views

    KV-XA21M93 SECTION 6 RM-952 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 54: Chassis

    KV-XA21M93 RM-952 6-2. CHASSIS r : 7-685-648-79 SCREW +BVTP 3 × 12 p : 7-685-663-71 SCREW +BVTP 4 × 16 REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK * A-1241-450-A F BOARD, MOUNTED ! 1-757-030-11 CORD, POWER (WITH CONNECTOR)

  • Page 55: Electrical Parts List

    KV-XA21M93 SECTION 7 RM-952 The components identified by shading ELECTRICAL PARTS LIST and mark ! are critical for safety. 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 56 KV-XA21M93 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 C280 1-164-004-11 CERAMIC CHIP 0.1UF 10.00%25V C507 1-161-830-00 CERAMIC 0.0047UF...
  • Page 57 KV-XA21M93 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 C610 1-126-964-11 ELECT 10UF 20.00%50V CN306 * 1-564-510-11...
  • Page 58 KV-XA21M93 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 D602 8-719-911-19 1SS119-25 IC203 8-759-827-61 D605 8-719-510-22 D3SB60...
  • Page 59 KV-XA21M93 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 JR501 1-216-295-11 SHORT Q308 8-729-216-22 2SA1162-G JR503 1-216-295-11...
  • Page 60 KV-XA21M93 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 R041 1-216-025-11 RES-CHIP 1/10W R306 1-216-077-91 RES-CHIP 1/10W...
  • Page 61 KV-XA21M93 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 R402 1-216-073-00 RES-CHIP 1/10W R559 1-249-429-11 CARBON 1/4W...
  • Page 62 KV-XA21M93 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 R646 1-215-924-00 METAL OXIDE <THERMISTOR> R647 1-249-401-11 CARBON...
  • Page 63 KV-XA21M93 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 CLP704 4-352-844-01 PIN, LEAD, COATING R704 1-247-807-31 CARBON...
  • Page 64 KV-XA21M93 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 <SPARK GAP> <DIODE> SG700 1-519-422-11 GAP, SPARK D3421...
  • Page 65 PART NO. DESCRIPTION REMARK X-4038-507-3 BEZNET ASSY (ECN KVD07176) 2 – 5 4-080-399-03 DOOR, CONTROL (ECN KVD06470) X-4038-831-3 REAR, COVER ASSY (ECN KVD07176) Sony Corporation Sony Technology Malaysia Sdn. Bhd. English  9-872-224-02 Visual Products General Area 2001.10 – 79 –...

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