Sony K-75XR90 Dismantling Information For Use
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Sony K-75XR90 Dismantling Information For Use

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Dismantling Information for Use
by Professional Recyclers
ORIGINAL MANUAL ISSUE DATE: 2024.06
Model:
K-75XR90
K-85XR90
9-888-927-41
Conditions of Use:
LCD TV
(1) Please use this information only for the purpose of performing repair and recycling Sony products. Using
this information for any purpose other than the purpose described foregoing is forbidden.
(2) Do not copy, replicate, reproduce, alter, translate, transmit, sell, lease, or distribute this information in
whole or in part without the prior written permission of the author.
Sony EMCS (Malaysia) Sdn. Bhd. HES-M
Revision of Information:
This information may be changed or updated at any time without any prior notice. Please confirm that this
information is up-to-date before using it.
© 2024.06

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Summary of Contents for Sony K-75XR90

  • Page 1 Conditions of Use: LCD TV (1) Please use this information only for the purpose of performing repair and recycling Sony products. Using this information for any purpose other than the purpose described foregoing is forbidden. (2) Do not copy, replicate, reproduce, alter, translate, transmit, sell, lease, or distribute this information in whole or in part without the prior written permission of the author.

  • Page 2: Model Lists

    MODEL LISTS MODEL REMOTE DESTINATION RMT-TX450E RMF-TX920U RMT-TX450E / K-75XR90 CEI, UKA RMF-TX920U RMT-TX450E / K-85XR90 CEI, UKA RMF-TX920U...

  • Page 3: Optional Equipments

    TOOLS & EQUIPMENTS 1 LIST OF ITEMS TO PREPARE Screwdriver (e.g., #2 Phillips Screwdriver). ii. Multimeter. iii. ESD W rist Straps. iv. Metal Washer (Flat) or Coin - to remove Rear Cover. Thickness: approx. 1.5 mm Diameter: 20~25 mm (wrap in tape (L=50 mm)) v.

  • Page 4: Safety Notes

    Replace these components with Sony parts whose part 7) Always clean the LCD panel with a soft cloth material. numbers appear as shown in this manual or in supplements published by Sony. 8) Handle the wires or connectors of the backlight circuit with care. Damaging the Circuit adjustments that are critical for safe operations are identified in this wires may cause a short circuit.
  • Page 5 SAFETY NOTES 10) During the repair, DO NOT leave the POWER ON or Burn-in period for more ※Things to prepare in advance. than 1 hour while the TV is facing down on a cloth. Refer Figure 1. ESD wrist-strap. Figure 1. ※Caution: ESD wrist-strap to be checked daily.
  • Page 6 SAFETY NOTES 1) Caution for Board handling(Stress).Be sure to observe the following contents Regardless of good or defective board, always put it on ESD cushion slowly Hold the board with both hands Keep vertical position and put in/take out from Box. Always put into ESD bag Do not hold or push Heat-Sink then place into Box/Container Box Handle with care.
  • Page 7 SAFETY NOTES ※Installation example of wrist-strap. 2) Caution for Board handling (ESD).Be sure to observe the following contents Please connect the clip to the metal part of the chassis of the TV with the wristband grounded. Below is a grounding example of each model. When take off Rear-Cover, do not touch board Use ESD wrist-strap ＜K*-65Z9F＞...
  • Page 8 SAFETY NOTES 1-5. Safety Check-Out Stabilized power supply instrument and isolated voltage transformer: Use too much current capacity and isolated voltage transformer does not need After correcting the original service problem, perform the following safety to use stabilized power supply equipment. checks before releasing the set to the customer:- Specification of RMS voltmeter: Input resistance >...
  • Page 9 SAFETY NOTES 1-7. How to Find a Good Earth Ground. 1-8. Lead Free Information The circuit boards used in these models have been processed using Lead 1) A cold-water pipe is a guaranteed earth ground; the cover-plate Free Solder. The boards are identified by the LF logo located close to the retaining screw on most AC outlet boxes is also at earth ground.
  • Page 10 SAFETY NOTES This notice applies only Rechargeable Remote commanders. [How to store batteries] 8) Do not short-circuit a cell or battery. Do not store cells or batteries Instructions on how to replace the battery will be provided separately, haphazardly in a box or drawer. Where they may short-circuit each other or but please note the following.
  • Page 11 SAFETY NOTES This notice applies only Rechargeable Remote commanders. Instructions on how to replace the battery will be provided separately, but please note the following. [SPECIFICATIONS] System requirements for battery charge using USB. A commercially available USB AC adapter capable of supplying an output current of 0.5 A (500 mA) or more.
  • Page 12 DISASSEMBLY AND REMOVAL CAUTION 75” --Highlighted in red Stand Model-- ※Caution: REAR COVER DO NOT disassemble Rear Cover in the service position. Please bring the main stand and swap before performing Before go to Step 1, service for highlighted model. - Swap stand with main stand --No Highlighted Model-- - Change low stand to high stand...
  • Page 13 DISASSEMBLY AND REMOVAL CAUTION 75” REAR COVER Remove screw from Rear Cover: 19 pcs Remove AC COVER. Remove Power Supply Code. Disconnect from G Board Remove Power Supply Code...
  • Page 14 DISASSEMBLY AND REMOVAL CAUTION 75” ※Caution: Use a washer (coin type jig) to remove bottom REAR COVER rear cover. 3. Unhook bottom hook, starting from center. ① <1> <2> Unhook two hooks closest to center simultaneously to prevent ② lock back. ③...
  • Page 15 DISASSEMBLY AND REMOVAL CAUTION 75” REAR COVER 4. Remove left side hook. 5. Remove right side hook.
  • Page 16 DISASSEMBLY AND REMOVAL CAUTION 75” ※Caution: DO NOT lift rear cover from bottom side to REAR COVER unlock for top hook because it is possible to break the top hook. ① Unlock Rear Cover Top hook. 6. Remove top hooks. ②...
  • Page 17 DISASSEMBLY AND REMOVAL CAUTION 75” Match the corners REAR COVER Hook Push Order and Position – How to adjust the position of Rear Cover Rear Cover Hook Push Order...

  • Page 18: Exploded View And Part List

    EXPLODED VIEW AND PART LIST 75” • Place the TV set facing downwards on a stable, level surface before disassembly and assembly of parts.  (*) Parts are not stocked since they are seldom required for routine service. Some delays should be anticipated when ordering these components.
  • Page 19 EXPLODED VIEW AND PART LIST 75” SET PART LIST REMARKS REF. NO PART NO. DESCRIPTION A-5072-879-A COMPL SVC BM6SL24_UP_EUUK_SOEM Printed Circuit Board, incl. capacitors 1-019-182-11 G44B- STATIC CONVERTER(TV) Internal Power Supply 1-019-262-11 MOUNTED PWB E-T-CON (75) Printed Circuit Board, incl. capacitors A-5068-021-A 24LCP1A1 COMPL Printed Circuit Board, incl.
  • Page 20 EXPLODED VIEW AND PART LIST 75” CONNECTOR REF. PART NO. DESCRIPTION REMARKS 1-020-386-11 HARNESS ASSY 12P (SP) CN6408(B)-CN6405(B)-SP(1) CN400(B)-CN6401(G)-CN6601(G)- 1-020-385-11 HARNESS ASSY 28P(GBTL) CN1010(LD)-CN1004(LD)-J302(TCON)(1) FLEXIBLE FLAT CABLE 41P 1-017-844-11 CN4201(B)-CN301(TCON)(1) FLEXIBLE FLAT CABLE 51P 1-017-845-11 CN4200(B)-CN300(TCON)(1) 1-020-419-11 FLEXIBLE FLAT CABLE 20P/25P CN301(H)-CN8000(B)-CN3804(B)-BT(1) 1-020-416-11 FLEXIBLE FLAT CABLE 30P...
  • Page 21 DISASSEMBLY AND REMOVAL CAUTION 85” --Highlighted in red Stand Model-- ※Caution: REAR COVER DO NOT disassemble Rear Cover in the service position. Please bring the main stand and swap before performing Before go to Step 1, service for highlighted model. - Swap stand with main stand --No Highlighted Model-- - Change low stand to high stand...
  • Page 22 DISASSEMBLY AND REMOVAL CAUTION 85” REAR COVER Remove screw from Rear Cover: 19 pcs Remove AC COVER. Remove Power Supply Code. Disconnect from G Board Remove Power Supply Code...
  • Page 23 DISASSEMBLY AND REMOVAL CAUTION 85” ※Caution: Use a washer (coin type jig) to remove bottom REAR COVER rear cover. 3. Unhook bottom hook, starting from center. ① <1> <2> Unhook two hooks closest to center simultaneously to prevent ② lock back. ③...
  • Page 24 DISASSEMBLY AND REMOVAL CAUTION 85” REAR COVER Start from center, unhook bottom hook. <1> <2> ① Unhook two hooks closest to center simultaneously to prevent ② Unhook both hooks using coin or jig. lock back. ③ Use mirror or touch the line/rib to assist locating the hook position.
  • Page 25 DISASSEMBLY AND REMOVAL CAUTION 85” REAR COVER 4. Remove left side hook. 5. Remove right side hook.
  • Page 26 DISASSEMBLY AND REMOVAL CAUTION 85” ※Caution: DO NOT lift rear cover from bottom side to REAR COVER unlock for top hook because it is possible to break the top hook. ① Unlock Rear Cover Top hook. 6. Remove top hooks. ②...
  • Page 27 DISASSEMBLY AND REMOVAL CAUTION 85” Match the corners REAR COVER Hook Push Order and Position – How to adjust the position of Rear Cover Rear Cover Hook Push Order...
  • Page 28 EXPLODED VIEW AND PART LIST 85” • Place the TV set facing downwards on a stable, level surface before disassembly and assembly of parts.  (*) Parts are not stocked since they are seldom required for routine service. Some delays should be anticipated when ordering these components.
  • Page 29 EXPLODED VIEW AND PART LIST 85” • Place the TV set facing downwards on a stable, level surface before disassembly and assembly of parts.  (*) Parts are not stocked since they are seldom required for routine service. Some delays should be anticipated when ordering these components.
  • Page 30 EXPLODED VIEW AND PART LIST 85” SET PART LIST REMARKS REF. NO PART NO. DESCRIPTION A-5072-879-A COMPL SVC BM6SL24_UP_EUUK_SOEM Printed Circuit Board, incl. capacitors 1-019-183-11 G44 - STATIC CONVERTER(TV) Internal Power Supply 1-019-265-11 MOUNTED PWB E-T-CON (85) Printed Circuit Board, incl. capacitors A-5068-021-A 24LCP1A1 COMPL Printed Circuit Board, incl.
  • Page 31 EXPLODED VIEW AND PART LIST 85” CONNECTOR REF. PART NO. DESCRIPTION REMARKS 1-020-388-11 HARNESS ASSY 12P (SP) CN6408(B)-CN6405(B)-SP(1) CN400(B)-CN6401(G)-CN6601(G)- 1-020-387-11 HARNESS ASSY 28P(GBTL) CN1010(LD)-CN1004(LD)-J302(TCON)(1) FLEXIBLE FLAT CABLE 41P 1-017-847-11 CN4201(B)-CN301(TCON)(1) FLEXIBLE FLAT CABLE 51P 1-017-848-11 CN4200(B)-CN300(TCON)(1) 1-020-426-11 FLEXIBLE FLAT CABLE 20P/25P CN301(H)-CN8000(B)-CN3804(B)-BT(1) 1-020-423-11 FLEXIBLE FLAT CABLE 30P...
  • Page 32 Sony EMCS (Malaysia) Sdn. Bhd. English HES-M 9-888-927-41 © 2024.06...

This manual is also suitable for:

K-85xr90Rmt-tx450eRmf-tx920u

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