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Sony Trinitron KV-24FV12 Service Manual
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Sony Trinitron KV-24FV12 Service Manual

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See also: Training Manual , Operating Manual

SERVICE MANUAL

MODEL
KV-24FV12
KV-24FV12
KV-25FV12
KV-25FV12A
KV-25FV12C
COMMANDER
DEST
RM-Y168
US
RM-Y168
CND
RM-Y168
E
RM-Y168
E
RM-Y168
E
BA-5
CHASSIS
CHASSIS NO.
SCC-S40C-A
SCC-S41C-A
SCC-S38G-A
SCC-S38H-A
SCC-S38J-A

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Summary of Contents for Sony Trinitron KV-24FV12

  • Page 1: Service Manual

    BA-5 SERVICE MANUAL CHASSIS MODEL COMMANDER DEST CHASSIS NO. KV-24FV12 RM-Y168 SCC-S40C-A KV-24FV12 RM-Y168 SCC-S41C-A KV-25FV12 RM-Y168 SCC-S38G-A KV-25FV12A RM-Y168 SCC-S38H-A KV-25FV12C RM-Y168 SCC-S38J-A...

  • Page 2: Specifications

    KV-24FV12/25FV12/25FV12A/25FV12C SPECIFICATIONS KV-25FV12 KV-25FV12A KV-25FV12C KV-24FV12 Power requirements 120V, 60Hz 120-220V, 50/60Hz Number of inputs/outputs Video S Video Audio Audio Out Headphone Out Speaker output(W) 10W x 2 10W x 2 Power Consumption(W) In use(Max) 150W 150W In standby Dimensions(W/H/D) 652 x 524.3 x 467.3mm 652 x 524.3 x 467.3mm (mm)

  • Page 3: Table Of Contents

    KV-24FV12/25FV12/25FV12A/25FV12C TABLE OF CONTENTS Section Title Page Warnings and Cautions ................................4 Self-Diagnostic Function ................................4 Safety Check-Out Instructions ..............................7 GENERAL ................................8 DISASSEMBLY 2-1. Rear Cover Removal ..............................13 2-2. Chassis Assembly Removal ............................13 2-3. Service Position ................................13 2-4.

  • Page 4: Warnings And Cautions

    SECURITE DU FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES SONY PARTS WHOSE PART NUMBERS APPEAR AS COMPOSANTS SONY DONT LE NUMERO DE PIECE EST INDIQUE DANS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS LE PRESENT MANUEL OU DANS DES SUPPLEMENTS PUBLIES PAR SONY.
  • Page 5 KV-24FV12/25FV12/25FV12A/25FV12C Display of Standby/Timer LED Flash Count 2 times 4 times 5 times LED ON 0.3 sec. STANDBY/TIMER LED LED OFF LED OFF 0.3 sec. 3 sec. Diagnostic Item Flash Count* +B overcurrent 2 times Vertical deflection stopped 4 times White balance failure 5 times *One flash count is not used for self-diagnostic.
  • Page 6 KV-24FV12/25FV12/25FV12A/25FV12C 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 7: Safety Check-Out Instructions

    KV-24FV12/25FV12/25FV12A/25FV12C SAFETY CHECK-OUT After correcting the original service problem, perform the Leakage Test following safety checks before releasing the set to the The AC leakage from any exposed metal part to earth customer: ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 1.

  • Page 8: General

    SECTION 1 GENERAL The instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers shown reflect those of the Operating Instruction Manual. Connecting Your TV Connecting Additional Equipment TV and VCR Read this section before setting up your TV for the first time. This section Rear of TV covers basic connections in addition to any optional equipment you may be connecting.
  • Page 9 TV and Cable Box TV, VCR and Cable box Rear of TV Cable Box Coaxial Cable From cable Coaxial Cable Rear of TV Coaxial Cable (Optional connection) Cable box From cable Connect the coaxial cable from your cable service to the IN jack on your cable box.
  • Page 10 TV and Satellite Receiver TV, Satellite Receiver and VCR Satellite Rear of TV antenna From cable Rear of TV cable/ antenna From cable/ antenna Satellite receiver SATELLITE IN VHF/UHF AUDIO R AUDIO L VIDEO AUDIO R AUDIO L VIDEO SATELLITE IN VHF/UHF VHF/UHF LINE IN...

  • Page 11: Using The Remote Control And Basic Functions

    Use to program your remote CODE SET control to operate connected SYSTEM OFF Powers off all Sony equipment at video equipment, (see page 31). once, (may not work with older equipment). If you lost your remote control, see page 35.

  • Page 12: Troubleshooting

    Troubleshooting If you are having a problem with your TV, try the suggestions below. If the problem persists, contact your nearest Sony dealer. No picture, no Make sure the power cord is plugged in. sound If a red light is flashing on the front of your TV for more than a few minutes, disconnect and reconnect the power cord to restore the TV.

  • Page 13: Disassembly

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL Screw +BVTP 4x16 Rear Cover Screw +BVTP 4x16 Screw +BVTP 4x16 Screw +BVTP 4x16 Screw +BVTP 4x16 Screw +BVTP 4x16 Screw +BVTP 4x16 2 Screws +BVTP 4x12 2-2. CHASSIS ASSEMBLY REMOVAL 2-3. SERVICE POSITION CB Board CB Board VB Board...

  • Page 14: Picture Tube Removal

    KV-24FV12/25FV12/25FV12A/25FV12C 2-4. PICTURE TUBE REMOVAL WARNING: BEFORE REMOVING THE ANODE CAP High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT coated earth ground strap.

  • Page 15: Set-Up Adjustments

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 3 SET-UP ADJUSTMENTS The following adjustments should be made when Perform the adjustments in order as follows: 1. Beam Landing a complete realignment is required or when a new 2. Convergence picture tube is installed. 3. Focus These adjustments should be performed with rated 4.

  • Page 16: Convergence

    KV-24FV12/25FV12/25FV12A/25FV12C 3-2. CONVERGENCE Horizontal Static Convergence Before starting convergence adjustments: If the blue dot does not converge with the red and green dots, perform the following: 1. Perform FOCUS, V.LIN AND V.SIZE adjustments. 1. Move BMC magnet (a) to correct insufficient H. Static 2.

  • Page 17: Focus

    KV-24FV12/25FV12/25FV12A/25FV12C Perform adjustments while tracking items 1 and 2. B G R R G B Screen-Corner Convergence R G B B G R 1. Affix a permalloy assembly corresponding to the misconverged areas. B G R R G B a-d: screen-corner misconvergence R G B 4.

  • Page 18: Method Of Setting The Service Adjustment Mode

    KV-24FV12/25FV12/25FV12A/25FV12C 3-5. METHOD OF SETTING THE SERVICE ADJUSTMENT MODE Service Mode Procedure 1. Standby mode (power off). Channel 5 Display Sound volume Power on the Remote Commander (press each button within a second). Service Adjustment Mode In 1. The CRT displays the item being adjusted. Disp.

  • Page 19: Safety Related Adjustments

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 4 SAFETY RELATED ADJUSTMENTS 4-1. R564 CONFIRMATION METHOD Hold-Down Readjustment (HV HOLD-DOWN CONFIRMATION) AND If the setting indicated in step 2 of Hold-Down Operation READJUSTMENTS Confirmation cannot be met, readjustment should be performed by altering the resistance value of R564 component marked with The following adjustments should always be performed when replacing the following components which are marked with T505...
  • Page 20 KV-24FV12/25FV12/25FV12A/25FV12C POWER SUPPLY DIGITAL MULTIMETER – 1SS119 – R564 C546 1 1 1 1 9 9 9 9 R438 R438 R438 R438 R449 R449 R449 R449 R454 R454 R454 R454 JR503 JR503 JR503 JR503 C448 C448 C448 C448 R450 R450 R450 R450 C530...

  • Page 21: Circuit Adjustments

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 5 CIRCUIT ADJUSTMENTS ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER Use the Remote Commander (RM-Y168) to perform the circuit adjustments in this section. NOTE: Test Equipment Required: • Pattern generator • Frequency counter • Digital multimeter • Audio oscillator 5-1. SETTING THE SERVICE ADJUSTMENT MODE 5-2.

  • Page 22: Adjustment Items

    KV-24FV12/25FV12/25FV12A/25FV12C Adjustment Items AVERAGE Reg # ITEM FUNCTION RANGE DATA NTSC PAL M PAL N VIDEO DATA HSIZ Horizontal Size Adjustment 0-63 HPOS Horizontal Position Adjustment 0-63 VBOW Vertical Line Bowing Adj. 0-15 VANG Vertical line Bowing Slant Adj. 0-15 TRAP Horizontal Trapezoid Adj.

  • Page 23: Feature Id Map

    KV-24FV12/25FV12/25FV12A/25FV12C AVERAGE Reg # ITEM FUNCTION RANGE DATA NTSC PAL M PAL N VIDEO DATA Vertical Sync Slice Level Horizontal Sync Slice Level HMSK VTMS Select Signal VTIM Pin CDMD Vertical Count Down Mode Switching AFC Loop Gain Switching FIFR Field Frequency SBAL Sub Balance...
  • Page 24 KV-24FV12/25FV12/25FV12A/25FV12C 4. Set both GON and BON items. Using 5. Adjust the values of SBRT with to obtain a faintly visible crosshatch. set each to the following values. Leave RON set to “1”. 6. Press then to save into the memory. SERVICE 1: ON 0: OFF...
  • Page 25 KV-24FV12/25FV12/25FV12A/25FV12C H. Center Adjustment (HPOS) V. Angle (VANG), V. Bow (VBOW), Upper pin (UPIN) and Low Pin (LPIN) Adjustments Perform this adjustment after performing H. Frequency (Free Run) Check. 1. Input a crosshatch signal. 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 2.

  • Page 26: Diagrams

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 6 DIAGRAMS 6.1 BLOCK DIAGRAM — 27 — — 28 —...
  • Page 27 KV-24FV12/25FV12/25FV12A/25FV12C — 29 — — 30 —...

  • Page 28: Circuit Board Location

    KV-24FV12/25FV12/25FV12A/25FV12C 6.2 CIRCUIT BOARD LOCATIONS Part Replaced ( Adjustment ( A BOARD IC BLOCK DIAGRAMS DY, T505, CRT, IC501, C507,C520, HV HOLD-DOWN C505, C509, C515, T504,T503, (R564) C551, L510, C546, C537, C547, D517, D518, D519, R560,R561, R562, R563, R565, R566, R567, A BOARD: IC402 TDA8580Q/N1 R525........A Board IC1301.......MB Board...
  • Page 29 KV-24FV12/25FV12/25FV12A/25FV12C [POWER SUPPLY, DEFLECTION, TUNER/IF, AUDIO, MTS] R238 R238 R238 R238 CN402 CN402 CN402 CN402 7.5V STBY 7.5V STBY DET-OUT 1 DET-OUT 1 DET-OUT 1 DET-OUT 1 CN2009 CN2009 A BOARD LOCATOR LIST LED-MAIN LED-MAIN 7.5V STBY 7.5V STBY R663 R663 R663 R663...
  • Page 30 KV-24FV12/25FV12/25FV12A/25FV12C A BOARD SCHEMATIC DIAGRAM A BOARD MARK (*) LIST KV-25FV12 REF NO. LOC. KV-24FV12 KV-25FV12C KV-25FV12A 560 UF 400V C612 H-10 680 UF 250V 56O UF 400V C615 G-12 .022 UF 400V .022 UF 400V C616 G-12 220 PF 1KV 220 PF 1KV C630 H-14...
  • Page 31 KV-24FV12/25FV12/25FV12A/25FV12C MB BOARD SCHEMATIC DIAGRAM MB BOARD MARK (*) LIST KV-24FV12 KV-25FV12 REF NO. LOC. KV-25FV12C KV-25FV12A C1354 I-16 .47 UF .22 UF C1356 H-16 470 PF 220 PF C1363 G-18 18 PF C1365 G-17 18 PF C1379 F-13 .01 UF .0047 UF IC1301 G-14...
  • Page 32 KV-24FV12/25FV12/25FV12A/25FV12C MB BOARD IC BLOCK DIAGRAMS MB BOARD IC VOLTAGE LIST MB BOARD: IC1301 CXA2135S (KV-25FV12A ONLY) [TUNING CONTROL, YCJ] IC1001 IC1002 volt volt IC1003 volt IC1302 volt -0.2 IC1301 volt MB BOARD: IC1301 CXA2131AS (ALL EXCEPT KV-25FV12A) EYUV CLAMP <FSC SW>...
  • Page 33 KV-24FV12/25FV12/25FV12A/25FV12C CB BOARD SCHEMATIC DIAGRAM 27V: TIGER 27V: TIGER 27V: TIGER 27V: TIGER [CRT DRIVE, RGB DRIVE] R717 R717 R717 R717 H H H H R718 R718 R718 R718 FOCUS FOCUS FOCUS FOCUS G4 HV KR G1 BOARD BOARD BOARD BOARD J701 J701...
  • Page 34 KV-24FV12/25FV12/25FV12A/25FV12C K BOARD SCHEMATIC DIAGRAM VB BOARD SCHEMATIC DIAGRAM CN402 CN402 CN402 CN402 TO MB BOARD TO MB BOARD TO MB BOARD TO MB BOARD CN1000 CN1000 CN1000 CN1000 CN901 CN901 CN901 CN901 C409 C409 C409 C409 C410 C410 C410 C410 C418 C418...

  • Page 35: Semiconductors

    KV-24FV12/25FV12/25FV12A/25FV12C 6-4. SEMICONDUCTORS 2SC1740S-QRT 2SC3209LK-TP 2SA1309A-QRSTA 2SB709A-QRS-TX 2SC3311A-QRSTA 2SD601A-QRS-TX 2SD2144S-TP-UVW 2SC2412K-T-146-QR 2SA1091O-TPE2 TF541M 2SK2845-LB102 2SA1837 2SA993AS-QRT 2SC4159-E 1SS133T-77 ERC06-15S 1SS83TD RD9.1EW-T1 MA111-TX D1N2OR-TA ISS83TD D1NL2OU-TA D1NS4-TA MTZJ-T-77-5.1C EL1Z-V1 MTZJ-T-7712C MTZJ-T-775.6C ERA22-08TP3 MTZJ-T-77-33B MTZJ-T-77-7.5A GP08DPKG23 MTZJ-T-77-39 MTZJ-T-77-10B RGP10GPKG23 RD8.2ES-T1B MTZJ-T-7730D RU4AM-T3 RD10ES-T1B RGP10-GPKG3 RGP02-17PKG23...

  • Page 36: Exploded View

    REF. NO. PART NO. DESCRIPTION REMARK X-4036-358-4 BEZNET ASSY * A-1342-547-A VB (VAR) MOUNTED PC BOARD 4-046-160-01 EMBLEM (NO.9), SONY 1-792-874-11 CORD, POWER (WITH CONNECTOR) 4-068-307-04 BUTTON, MULTI * A-1380-629-A K (VAR) MOUNTED PC BOARD 4-068-308-01 GUIDE, LED 1-766-374-11 PLUG, F-PIN...

  • Page 37: Chassis (Kv-25Fv12A Only)

    DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK X-4037-467-2 BEZNET ASSY * A-1380-629-A K (VAR) MOUNTED PC BOARD 4-046-160-01 EMBLEM (NO.9), SONY 1-766-374-11 PLUG, F-PIN 4-068-307-04 BUTTON, MULTI 1-529-640-11 SPEAKER (13X8CM) 4-068-308-11 GUIDE, LED 4-374-745-31 CUSHION (A) 4-068-309-04 BUTTON, FUNCTION...

  • Page 38: Chassis (Kv-25Fv12/25Fv12C Only)

    DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK X-4036-358-4 BEZNET ASSY 1-790-316-21 CORD, AC POWER(WITH CONNECTOR) 4-046-160-01 EMBLEM (NO.9), SONY (KV-25FV12 ONLY) 4-068-307-04 BUTTON, MULTI 1-769-796-31 CORD, POWER (WITH CONNECTOR) 4-068-308-01 GUIDE, LED (KV-25FV12C ONLY) 4-068-309-04 BUTTON, FUNCTION * A-1380-629-A K (VAR) MOUNTED PC BOARD...

  • Page 39: Electrical Parts List

    KV-24FV12/25FV12/25FV12A/25FV12C SECTION 8 ELECTRICAL PARTS LIST Note: • The components identified by in this manual have been carefully factory- selected for each set in order to satisfy The components identified by shading regulations regarding X-ray radiation. and mark are critical for safety. Replace Should replacement be required, replace only with part number specified.
  • Page 40 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 41 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 42 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 43 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by in this manual have been The components identified by shading carefully factory-selected for each set in order to satisfy and mark are critical for safety. regulations regarding x-ray radiation. Should replacement Replace only with part number specified. be required, replace only with the value originally used.
  • Page 44 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 45 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 46 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 47 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 48 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 49 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 50 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 51 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 52 KV-24FV12/25FV12/25FV12A/25FV12C Note: Note: The components identified by shading Les composants identifies per un trame et une marque and mark are critical for safety. Replace sont critiques pour la securite. Ne les remplacer only with part number specified. que par une piece portant le numero specifie. REF.NO.
  • Page 53 KV-24FV12/25FV12/25FV12A/25FV12C Sony Corporation English Sony Technology Center 2000DS74325-1 Product Quality Division Printed in USA 9-965-881-01 Service Promotion Dept. 2000.3 — 68 —...

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