Sony KV-J29MN1 Service Manual
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Sony KV-J29MN1 Service Manual

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  • Page 29 <REFINE> SERVICE MANUAL BG-1S (D) CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-J25MN1 RM-883 India SCC-K67N-A TRINITRON COLOR TV ®...
  • Page 30 THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE 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 SUP- PLEMENTS PUBLISHED BY SONY.

  • Page 31: Table Of Contents

    KV-J25MN1AK RM-883 TABLE OF CONTENTS Section Title Page Section Title Page 6. DIAGRAMS 1. GENERAL ..............6-1. Block Diagram ............2. DISASSEMBLY 6-2. Circuit Boards Location ........2-1. 3D Speaker Removal ........... 6-3. Schematic Diagrams and Printed Wiring Boards . (1) Schematic Diagram of A Board ......

  • Page 32: General

    SECTION 1 The operating instructions mentioned here are partial abstracts from the Operating Instructions Manual. The page numbers of the Operating GENERAL Instruction Manual remain as in this manual. VIDEO 1 INPUT COLOR MANUAL AUTO (MONO) SELECT S VIDEO VIDEO L–AUDIO–R SYSTEM SYSTEM...
  • Page 33 Getting Started Connecting optional equipment Connections You can connect optional audio/video equipment to your TV such as a VCR, multi disc player, camcorder, video game, or stereo system. Connecting video equipment using video input jacks to antenna socket Rear of TV AUDIO VIDEO (MONO)
  • Page 34 Connecting audio/video equipment using MONITOR OUT jacks Presetting channels Presetting channels manually using the buttons on the TV to antenna socket Press MANUAL PROGR. Rear of TV Audio system AUDIO VIDEO Press PROGR +/– on the remote commander (MONO) to antenna until the required program position VIDEO output...
  • Page 35 Presetting channels automatically Presetting channels manually using the If you are not satisfied with the picture using the remote commander remote commander and sound quality + or – SELECT Press SELECT until “TV SYSTEM” appears. You may be able to further improve the picture and sound quality by using fine tuning as below: SELECT Press POWER to turn on the TV.
  • Page 36 Operations • The last TV program position or video input just before the TV Watching the TV Turning off the TV Displaying on-screen information turns into standby mode will appear when the TV is turned on using the WAKE UP Timer. To turn off the TV temporarily •...
  • Page 37 Using the Child Lock Watching the picture Adjusting the Adjusting the sound Adjusting the sound and picture settings Press SELECT until the item you want to feature in wide mode picture and picture adjust appears. SELECT Each time you press SELECT, the screen changes as follows: ÷...
  • Page 38 Additional Information Notes Good picture Selecting a stereo or Troubleshooting • If the signal is very weak, the sound becomes monaural Noisy sound automatically. • If the stereo sound is noisy when receiving a NICAM program, bilingual program select “MONO”. The sound becomes monaural, however, the noise will be reduced.

  • Page 39: Disassembly

    SECTION 2 DISASSEMBLY 2-1. 3D SPEAKER BOX REMOVAL 2-3. SPEAKER REMOVAL 1 3D Speaker box Red wire 1 Two screws (Washer head) (+BVTP 4×16) Black wire 2 Speaker bracket (L/R) assy 2-2. REAR COVER REMOVAL 2-4. CHASSIS ASSY REMOVAL 2 Rear cover 1 Two screws (+BVTP 4×16) 1 Four screws...

  • Page 40: Service Position

    2-5. SERVICE POSITION 2-7. K1 BOARD REMOVAL 3 K1 Board 1 Connector 2 Two screws (+BVTP 3×12) 2-6. A3, A4, A11 AND A12 BOARDS REMOVAL 2-8. K BOARD REMOVAL 3 A11 board 4 A12 board 1 One connector K Board 5 A3 board 2 A4 Board...

  • Page 41: F1 And H3 Boards Removal

    2-9. F1 AND H3 BOARDS REMOVAL 2-11. PICTURE TUBE REMOVAL 5 Seven connector 0 Two DGC band 6 C Board 9 Two DGC holder 8 H3 Board !¡ Two DGC clips !¡ Two DGC clips 7 Neck assy !™ DGC !™...
  • Page 42 • REMOVAL OF ANODE-CAP NOTE : After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon paint on the CRT. • REMOVING PROCEDURES 1 Turn up one side of the rubber cap in the direction indicated by the arrow a. 2 Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.

  • Page 43: Set-Up Adjustments

    KV-J25MN1AK SECTION 3 RM-883 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 44: Convergence

    KV-J25MN1AK RM-883 • 3-2. CONVERGENCE Operation of V.STAT magnet. If the V.STAT magnet is moved in the direction of the a and Preparation : • b arrows, the red, green and blue dots move as shown below. Before starting this adjustment, adjust the focus, horizontal size, and vertical size.
  • Page 45 KV-J25MN1AK RM-883 (2) Dynamic Convergence Adjustment Preparation : • Before starting this adjustment, adjust the horizontal static 3. Move the deflection yoke as shown in the figure below and convergence and the vertical static convergence. optimize the convergence. 1. Slightly loosen the deflection yoke screws. 4.

  • Page 46: Focus Adjustment

    KV-J25MN1AK RM-883 DATA 3-3. FOCUS ADJUSTMENT Adjust FOCUS control on the flyback transformer for the best SERVICE focus. Adjustment Item Item number WRITE MUTING Executes the writing Focus 3-4. G2 (SCREEN) AND WHITE BALANCE ADJUSTMENTS 1. G2 (SCREEN) ADJUSTMENT (RV701) a.

  • Page 47: Self Diagnosis Function

    KV-J25MN1AK SECTION 4 RM-883 SELF DIAGNOSIS FUNCTION If no acknowledgement is returned from a device which is turned "ON", the device has a problem. In this case, one of the LED's responding to the problem device will flicker a defined number of times. Flickering is operated by lighting the LED's for 60ss each time.

  • Page 48: Circuit Adjustments

    KV-J25MN1AK SECTION 5 RM-883 CIRCUIT ADJUSTMENTS 5-1. ADJUSTMENTS WITH COMMANDER Service adjustments are made with the RM-883 that comes with this unit. [1], [4] Raise/lower the service item number [3], [6] Raise/lower the data [MUTING] Writes Entering service mode Executes the writing With the unit on standby ↓...

  • Page 49: Adjustment Method

    KV-J25MN1AK RM-883 5-2. ADJUSTMENT METHOD Item Number 08 Use the same method for Items Number 00-4B. Use [1] and [4] to This explanation uses V-SHIFT as an example. select the adjustment item, use [3] and [6] to adjust, write with 1.
  • Page 50 KV-J25MN1AK RM-883 Adjustment Item Table Data Item Adjustment Initial Standard data Note Device number Item range data 00–3F H SHIFT TDA8375 00–3F H SIZE TDA8375 00–3F PIN AMPLITUDE TDA8375 00–3F CORNER PIN TDA8375 00–3F TILT TDA8375 00–3F V SLOPE TDA8375 00–3F V AMPLITUDE TDA8375...
  • Page 51 KV-J25MN1AK RM-883 Item Adjustment Data Initial Standard data Note Device number Item range data 00–0F TEXT PICTURE SAA5281 00–0F TEXT MIX MODE PICTURE SAA5281 µ-CON 00–3F BLK OFF PICTURE µ-CON 00–3F H BLK LEFT WIDTH µ-CON 00–3F H BLK RIGHT WIDTH µ-CON 00–7F H BLK HIGH WIDTH...
  • Page 52 KV-J25MN1AK RM-883 NOTE • Standard Data: Those are the standard data values written on the microprocessor. Therefore, the data values of the modes are stored respectively in the memory. In case of a device replacement, adjustment by rewriting the data value is necessary for some items. •...

  • Page 53: A Board Adjustment After Ic003 (Memory) Replacement

    KV-J25MN1AK RM-883 5-3. A BOARD ADJUSTMENT AFTER IC003 5-4. PICTURE DISTORTION ADJUSTMENT (MEMORY) REPLACEMENT Item Number 00 – 08 1. Enter to Service Mode. HSF (H SHIFT) 00 HSF (H SHIFT) 2. Press commander buttons [5] and [0] (Data Initialize), and [2] and [0] (Data Copy) to initialize the data.

  • Page 68: Exploded Views

    KV-J25MN1AK SECTION 7 RM-883 EXPLODED VIEW NOTE: • • Items marked " * " are not stocked since Items with no part number and no des- The components identified by cription are not stocked because they they are seldom required for routine shading and mark ! are critical service.

  • Page 69: Chassis

    KV-J25MN1AK RM-883 7-2. CHASSIS [ : BVTP3 × 16 7-685-650-79 REF.NO. PART NO. DESCRIPTION REMARK * 4-065-815-01 BRACKET, MAIN * A-1241-328-A F1 BOARD, COMPLETE * A-1372-527-A H3 BOARD, COMPLETE * A-1380-590-A K BOARD, COMPLETE * A-1298-662-A A BOARD, COMPLETE A-1294-403-A A4 BOARD, COMPLETE * A-1294-197-A A11 BOARD, COMPLETE...

  • Page 70: Speaker

    KV-J25MN1AK RM-883 7-3. 3D Speaker L : BVTP4 × 16 7-685-663-71 REF.NO. PART NO. DESCRIPTION REMARK A-1501-347-A BOX ASSY (3D), SPEAKER 4-054-496-01 COVER, TOP 1-900-224-27 LEAD ASSY, SPEAKER 4-054-497-01 COVER, BOTTOM 4-302-428-03 SCREW (WASHER HEAD) (+P 3X12) 7-621-260-65 SCREW +P 2.6X30 7-622-207-05 N 2.6, TYPE 2 7-688-002-11...
  • Page 71 KV-J25MN1AK RM-883 SECTION 8 The components identified by shading and mark ! are critical for safety. ELECTRICAL PARTS LIST Replace only with part number specified. NOTE: REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK • Items marked " ∗ " are not stocked since RESISTORS •...
  • Page 72 KV-J25MN1AK RM-883 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 C321 1-136-165-00 FILM 0.1MF C555 1-101-804-00 CERAMIC 10PF 500V C323 1-102-852-91...
  • Page 73 KV-J25MN1AK RM-883 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 C5908 1-137-188-51 FILM 0.15MF D306 8-719-911-19 DIODE 1SS119-25 D307 8-719-911-19 DIODE 1SS119-25...
  • Page 74 KV-J25MN1AK RM-883 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 IC801 8-759-145-58 IC UPC4558C Q414 8-729-119-78 TRANSISTOR 2SC2785-HFE IC1203 8-759-701-75 IC NJM7805FA...

  • Page 75: Schematic Diagrams Of A3, A11 And K Boards

    KV-J25MN1AK RM-883 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 R058 1-247-847-31 CARBON 4.7K 1/4W R325 1-249-411-11 CARBON 1/4W R060 1-249-411-11...
  • Page 76 KV-J25MN1AK RM-883 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 R557 1-249-420-11 CARBON 1.8K 1/4W R1212 1-220-958-81 METAL 1/2W R561 1-247-839-31...
  • Page 77 KV-J25MN1AK RM-883 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 <SURFACE WAVE FILTER> C1232 1-124-234-00 ELECT 22MF C1233 1-126-962-11 ELECT 3.3MF...
  • Page 78 KV-J25MN1AK RM-883 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> R1220 1-216-049-91 RES,CHIP 1/10W R1223 1-216-051-00 RES,CHIP 1.2K 1/10W IC1201...

  • Page 79: Schematic Diagrams Of A12, C And F2 Boards

    KV-J25MN1AK RM-883 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 <COIL> <TRANSISTOR> L3001 1-408-610-31 INDUCTOR 39UH Q410 8-729-119-76 TRANSISTOR 2SA1175-HFE L3003 1-408-610-31...
  • Page 80 KV-J25MN1AK RM-883 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 <TRANSISTOR> D712 8-719-911-19 DIODE 1SS119-25 D716 8-719-911-19 DIODE 1SS119-25 Q1205 8-729-119-76 TRANSISTOR 2SA1175-HFE...
  • Page 81 KV-J25MN1AK RM-883 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 R756 1-220-963-81 METAL 3.3K 1/2W C618 1-126-933-11 ELECT 100MF R757 1-220-963-81...
  • Page 82 KV-J25MN1AK RM-883 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> R2604 1-202-962-11 CEMENTED R2605 1-249-416-11 CARBON 1/4W F FB600 1-410-397-21...
  • Page 83 KV-J25MN1AK RM-883 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 D904 8-719-109-84 DIODE RD5.1ESB1 S2905 1-571-532-21 SWITCH, TACTILE D5903 8-719-121-26 DIODE RD9.1ESL2...
  • Page 84 KV-J25MN1AK RM-883 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> * A-1342-421-A VM BOARD, COMPLETE *********************** PS1501 1-532-984-11 LINK, IC 2A/90V...

  • Page 85: Semiconductors

    KV-J25MN1AK RM-883 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 <RESISTOR> MISCELLANEOUS ***************** R1721 1-247-825-31 CARBON 1/4W ! 1-403-619-11 R1722 1-249-411-11 CARBON...
  • Page 86 ! are critical for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK REF. NO. PART NO. DESCRIPTION REMARK Sony Corporation English 98HA70034-1 Display Company Printed in Malaysia © 9-965-701-01 TV Display Business Asia...

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