Sony KV-XF21M31 Service Manual
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Sony KV-XF21M31 Service Manual

Sony KV-XF21M31 Service Manual

Trinitron color tv
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SERVICE MANUAL
MODEL
COMMANDER
KV-XF21M31
RM-952
DEST.
CHASSIS NO.
New Zealand SCC-U26B-A
BG-3S
MODEL
COMMANDER DEST. CHASSIS NO.
TRINITRON
CHASSIS
COLOR TV
®

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  • Page 1 SERVICE MANUAL BG-3S CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-XF21M31 RM-952 New Zealand SCC-U26B-A 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-XF21M31 RM-952 TABLE OF CONTENTS Section Title Page Section Title Page SELF DIAGNOSIS FUNCTION 5. DIAGRAMS ........ 4 5-1. Block Diagram ............39 1. GENERAL ................ 8 5-2. Frame Schematic Diagram ........42 Circuit Boards Location .......... 45 2. DISASSEMBLY 5-4.

  • Page 4: Self Diagnosis Function

    KV-XF21M31 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-XF21M31 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-XF21M31 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-XF21M31 RM-952 SELF-DIAGNOSTIC CIRCUIT IC301 IC001 IC003 Y/CHROMA JUNGLE SYSTEM MEMORY FROM IK-IN IO-8DAT B-DAT FROM [+B] Q604 C5 O-LED 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 The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remain as in the manual. L(MONO) VIDEO AUDIO VIDEO IN VIDEO OUT...
  • Page 9 ONE-PUSH AUTOMATIC PROGRAMING ONE-PUSH AUTOMATIC PROGRAMING ONE-PUSH AUTOMATIC PROGRAMMING...
  • Page 10 JUMP SOUND Á PROGR MODE FAVORITE ONE-PUSH AUTOMATIC PROGRAMING...
  • Page 12 JUMP SOUND Á PROGR MODE FAVORITE ONE-PUSH AUTOMATIC PROGRAMING...
  • Page 13 SOUND Á PROGR MODE FAVORITE...
  • Page 14 JUMP SOUND Á PROGR MODE FAVORITE FAVORITE...
  • Page 15 SOUND Á PROGR MODE FAVORITE JUMP SOUND Á PROGR MODE FAVORITE...
  • Page 16 JUMP SOUND Á PROGR MODE FAVORITE P166 SECTEXT FR1 MAR 03:59:09 Fom Singapore Dep/Arr Flight Alrcraft 220/0588 SQ28 To PARIS 2130/1225 PA115 2115/1330 SQ26 To OSAKA 1000/1715 0930/2015 CX522 To ROMA 2130/0745 SQ24 2300/0915 AZ487 To SYDNEY 2210/0610 SQ21A 2100/0835 SQ21A...
  • Page 17 ONE-PUSH AUTOMATIC PROGRAMING...
  • Page 19 ONE-PUSH AUTOMATIC PROGRAMING ONE-PUSH AUTOMATIC PROGRAMMING...
  • Page 20 JUMP JUMP SOUND Á PROGR SOUND Á PROGR MODE MODE FAVORITE FAVORITE...

  • Page 25: Set-Up Adjustments

    KV-XF21M31 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 26: Convergence

    KV-XF21M31 RM-952 3-2. CONVERGENCE Preparation : • Before starting this adjustment, adjust the focus, horizontal size V. STAT and vertical size. • Minimize the brightness setting. • Provide dot pattern. (1) Horizontal and Vertical Static Convergence Center dot H. STAT VR H.
  • Page 27 KV-XF21M31 RM-952 Y separation axis correction magnet adjustment. Blue Neck assy Neck assy 1. Receive the cross-hatch signal and adjust [PICTURE] to [MIN] and [BRIGHTNESS] to [STANDARD] . 2. Adjust the Y separation axis correction magnet on the neck assembly so that the horizontal lines at the top and bottom of Blue the screen are straight.

  • Page 28: Focus Adjustment

    KV-XF21M31 RM-952 (3) Screen-corner Convergence 3-4. G2 (SCREEN) AND WHITE BALANCE ADJUSTMENTS 1. G2 (SCREEN) ADJUSTMENT 1) Set the PICTURE to normal. 2) Put to VIDEO input mode without signals. a-d : screen-corner 3) Connect R, G and B of the C5 board cathode to the oscillo- misconvergence scope.

  • Page 29: Circuit Adjustment

    KV-XF21M31 SECTION 4 RM-952 CIRCUIT ADJUSTMENTS 4-1. ADJUSTMENTS WITH COMMANDER Service adjustments are made with the RM-952 that comes with this unit. 1, 4 Select the adjustment item. ↓ a. ENTERING SERVICE MODE 3, 6 Raise/lower the data value. With the unit on standby ↓...

  • Page 30: Adjustment Method

    KV-XF21M31 RM-952 4-2. ADJUSTMENT METHOD Item Number 00 of device GEO Use the same method for all Items. Use 1 and 4 to select the This explanation uses H-Position as an example. 1. Select “GEO 00 HPS” with the 1 and 4 buttons.
  • Page 34 KV-XF21M31 RM-952 ITEM INFORMATION. No. OPB0 OP1 Item XTAL 4.43 XTAL 3.58 SECAM 2nd. Lang KV-XF21M31 No. OPB1 OP2 NICAM HDEV Thai Bil Dis Fav DVD Input AV Input Item KV-XF21M31 No. OPB2 OP3 Pic Rot 2199 Curve Auto PIC...

  • Page 35: Picture Quality Adjustments

    KV-XF21M31 RM-952 4-3. PICTURE QUALITY ADJUSTMENTS BELL FILTER ADJUSTMENT SUB COLOR ADJUSTMENT 1. Input SECAM color-bar signal. 2. Connect the dual-trace oscilloscope to the pin 9 (R-Y) of 1. Input a PAL color-bar. CN303 (not mounted). 2. Set to the following condition: 3.

  • Page 36: Picture Distortion Adjustment

    KV-XF21M31 RM-952 4-5. PICTURE DISTORTION ADJUSTMENT Item Number 00 – 0B GEO 0 HSH (H POSITION) GEO 1 HSZ (H SIZE) GEO 2 PAP (PIN AMP) GEO 3 TILT (TRAPEZIUM) GEO 4 VSH (V POSITION) GEO 5 VSZ (V SIZE)

  • Page 37: Diagrams

    KV-XF21M31 KV-XF21M31 KV-XF2 SECTION 5 RM-952 RM-952 DIAGRAM 5-1. BLOCK DIAGRAM MAIN. TUVIF with STEREO DECODER TV V in AUDIO (MSP3415) TV L in PROSESSOR TV R in IC203 TU101 TDA7429S COMB FILTER BTF-WG441(I) <slave: 80H> (Glass Combs) SP ASSY <slave: C0H>...
  • Page 38 KV-XF21M31 KV-XF21M31 KV-XF21M31 RM-952 RM-952 RM-952 5-2. FRAME SHEMATIC DIAGRAM CN5901 CN704 CN701 200V VM MUTE PICTURE CN703 TUBE (RGB OUT) VELOCITY CN801 CN803 MODULATION GREEN BLUE V1 (TELE TEXT) (KV-XF21M61/XF21M65 ONLY) CVBS 7.5V NECK ASSY DY ASSY (POWER SUPPLY, HV, MICON, Y/C JUNGLE) (CISPR) –...

  • Page 39: Circuit Boards Location

    KV-XF21M31 RM-952 5-3. CIRCUIT BOARDS LOCATION – 45 –...

  • Page 40: Schematic Diagrams And Printed Wiring Boards

    KV-XF21M31 RM-952 5-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS 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 41 (1) Schematic Diagram of A (1/2) Board TU101 BTF-LG411 JW080 C217 R327 C101 C214 R106 R108 L901 JW901 R901 C221 C220 :EL0606 R902 C203 1000 JW301 15MM C107 C108 C112 C264 470p R111 R206 C106 B:CHIP C110 PS200 :CHIP 470p L902 1.5A B:CHIP...

  • Page 42: Schematic Diagram Of A (2/2) Board

    (2) Schematic Diagram of A (2/2) Board C644 C656 R500 C645 0.0022 R602 R603 0.01 470k :FPRD 250V R501 R502 L517 C500 L516 C514 C543 R589 T504 C528 0.047 470p C538 2W :RS C551 R523 200V R596 R557 0.0085 JW503 L515 R544 6.8k...
  • Page 43 KV-XF21M31 KV-XF21M31 KV-XF2 RM-952 RM-952 A BOARD [POWER SUPPLY, HV, MICON, Y/C JUNGLE] D004 D614 PRINTED WIRING BOARD D005 D615 IC001 B-10 D006 D616 IC002 – A Board – D203 C-11 D617 IC003 D300 D618 IC100 D301 D620 IC201 B-11...

  • Page 44: Schematic Diagrams Of C5 And Vm1 Boards

    (3) Schematic Diagrams of C5 and VM1 boards CN702 :TAB RGB OUT L701 :EL0607 200V C704 C701 0.022 R703 400V 0.0047 100k FOCUS 1/2W CN701 G1-1 J701 R705 :MINI SOCKET D1808 CN5901 RV1801 TO A BOARD CN505 RV702 :S-MICRO 110M H.STAT CN1801 C1809...
  • Page 45 KV-XF21M31 KV-XF21M31 RM-952 RM-952 [RGB OUT] [VELOCITY MODULATION] PRINTED WIRING BOARDS – VM Board – – C Board – BOARD WAVEFORMS PAL/SECAM 126Vp-p (H) 112Vp-p (H) 122Vp-p (H) 3 NTSC 110Vp-p (H) 30Vp-p (H) – – – –...

  • Page 46: Schematic Diagram Of V1 Board

    (4) Schematic Diagram of V1 board R897 R895 R898 4.7k 4.7k :CHIP :CHIP :CHIP D802 D801 DAP202K-T-146 IC801 SURGE SAA5261 R838 R807 Q813 TEXT DECODER 0 :CHIP 2SC1623-L5L6 R896 (TELE TEXT) H/V SEPARATOR C828 C825 R806 R814 R831 0 :CHIP :CHIP * (0) EAST...

  • Page 47: Schematic Diagram Of F Board

    (5) Schematic Diagram of F board [CISPR] [TELE TEXT] PRINTED WIRING BOARD – F Board – CISPR F4601 CN4601 T3.15A FUSE 250V VDR461 T4601 T4602 TNR14V471K660 T.L.F T.L.F AC IN AC OUT R4601 AC IN AC OUT CN4602 CN4603 :TAB TO A BOARD CN601 TO A BOARD...

  • Page 48: Semiconductors

    5-5. SEMICONDUCTORS DIODE TRANSISTOR AU-01Z-V1 MA111-(K8).SO RD3.3M-B2 UN2111 2SC2458-YGR 2SK2845-LB102 EL1Z 1SS355TE-17 RD5.6M-B2 UN2211 2SD2144S-UVW GP08D UN2213 RD33EB3T DTC114EK RGP02-17EL-6433 UN2216 2SA1162-G 2SC1623-L5L6 ANODE CATHODE 2SC2712-YG CATHODE 2SD2114K ON3171-R ANODE DAP202K 2SD2578-CA 2SC2611 D4SB60L LETTER SIDE 2SA1175-HFE 2SC2785-HFE LETTER SIDE D1NS4 DA204K RD20ES-B2...
  • Page 49 KV-XF21M31 RM-952 CXA2139S (48PIN) TDA8172 TA8223K CXPP86449-623S (64PIN) SAA5261 (52PIN) TDA7429S (42PIN) TOP VIEW LA6510 Dual In-line Package Pin 6~98 STR-F6654 MM1319AFBE (7PIN) MARKING SIDE VIEW NJM2903M (8PIN) Zig-zag In -line Package Pin 6~99 TOP VIEW Single In -line Package...

  • Page 50: Exploded Views

    KV-XF21M31 KV-XF21M31 SECTION 6 RM-952 RM-952 EXPLODED VIEW NOTE: • • Items with no part number and no des- Items marked " * " are not stocked since they are seldom required for routine The components identified by cription are not stocked because they shading and mark ! are critical are seldom required for routine service.

  • Page 51: Electrical Parts List

    KV-XF21M31 KV-XF21M31 SECTION 7 RM-952 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 52 KV-XF21M31 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 C608 1-161-830-00 CERAMIC 0.0047MF 500V CN204 * 1-564-506-11...
  • Page 53 KV-XF21M31 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 D521 8-719-302-43 DIODE EL1Z FB608 1-412-911-31 FERRITE D522...
  • Page 54 KV-XF21M31 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 JR500 1-216-295-91 SHORT Q206 8-729-421-19 TRANSISTOR UN2213 JR501...
  • Page 55 KV-XF21M31 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 R028 1-216-073-00 RES,CHIP 1/10W R230 1-216-073-00 RES,CHIP 1/10W...
  • Page 56 KV-XF21M31 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 R377 1-216-121-91 RES,CHIP 1/10W R552 1-216-057-00 RES,CHIP 2.2K...
  • Page 57 KV-XF21M31 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 R635 1-216-492-11 METAL OXIDE <TRANSFORMER> R636 1-215-924-00 METAL OXIDE...
  • Page 58 KV-XF21M31 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 CN1802* 1-564-506-11 PLUG, CONNECTOR 3P R710 1-215-922-11 METAL OXIDE 6.8K...
  • Page 59 KV-XF21M31 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 <CAPACITOR> <CONNECTOR> C654 ! 1-117-703-11 CERAMIC 0.0047MF 250V...
  • Page 60 KV-XF21M31 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 R5931 1-249-413-11 CARBON 1/4W <CHIP CONDUCTOR> R5932 1-249-413-11...
  • Page 61 VIBRATOR, CRYSTAL ************************************************************** REMOTE COMMANDER ********************** 1-418-163-11 REMOTE COMMANDER (RM-952) 9-939-697-01 BATTERY COVER, REMOTE COMMANDER Sony Corporation English 99HS70068-1 SONY TV Industries (M) Sdn. Bhd. Printed in Malaysia  9-965-758-01 TV Business of General Area 1999. 8 – 84 –...

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