Thursday, June 8, 2017

LCD LED TV Protection Bypassing Notes

LCD backlight protection By Imran Ashraf Khan For Technican's Only.

Screen Black (no display) failure usually encounter some display only one lamp or circuit protection. For easy troubleshooting​ , we need to remove (by pass) method for break protection.

OZ9938 remove protection circuit: 
1. pin 3 short to ground
2. pin 6 short to ground
3. pin 7 short to ground, remove the grounding resistance ,to 
remove protection.
MP1038EY connecting wire pin 11 and pin 2 ,to remove 
protection.
TL5001 short pin 5 to ground ,to remove protection.
TL1451 short pin 15 to ground, to remove protection.
TL5451 short pin 15 to ground, to remove protection.
BA9741 short pin 15 to ground, to remove protection.
BA9743 short pin 15 to ground, to remove protection.
MB3775 short pin 15 to ground, to remove protection.
AT1741 short pin 15 to ground, to remove protection.
AT1380 short pin 2 to ground, to remove protection.
KA7500 short pin 1 and pin 16 to ground, to remove protection.
TL494 short pin 1 and pin 16 to ground. IF not work, short pin 4 to 
ground.
FA3629 short external capacitor over pin 15 and pin 16 
FA3630 short pin 7 and pin 10 to ground, to remove protection.
OZ960 OZ962 short pin 2 to ground, to remove protection.
OZ965 short pin 4 and pin 6 to ground, to remove protection.
OZ9RR short pin 8 and pin 9 to ground, to remove protection.BIT3101 Cavitate pin 2 and pin 15 pins (suck out the solder, let the 
pins float.)Imran Ashraf
BIT3102 Cavitate pin 5 
BIT3105 Cavitate pin 4
BIT3106 Cavitate pin 4 and pin 27 
BIT3107 Cavitate pin 4 
BIT3193 Pin 15 or pin 3
BIT3195 Break Protection Apply LED to pin 5 and Ground.
AAT1100 pin 8 short to ground, to remove protection.
AAT1107 pin 15 short to ground, to remove protection.
BD9884 short pin17 and pin 18 on the ground capacitance.
AAT1100 pin 8 short to ground, to remove protection.
AAT1107 pin 15 short to ground, to remove protection.
AT1380 short pin 2 to ground, to remove protection.
AT1741 short pin 15 to ground, to remove protection.
BA9741 short pin 15 to ground, to remove protection.
BA9743 short pin 15 to ground, to remove protection.
BD9884 short pin17 and pin 18 and ground the capacitance.
BIT3101 Cavitate pin 2 and pin 15 pins (suck out the solder, let the pins 
float.)
BIT3102 Cavitate pin 5
BIT3105 Cavitate pin 4
BIT3106 Cavitate pin 4 and pin 27
BIT3107 Cavitate pin 4
BIT3193 Cavitate pin 15 pin 3
FA3629 short external capacitor over pin 15 and pin 16
FA3630 short pin 7 and pin 10 to ground, to remove protection.
KA7500 short pin 1 and pin 16 to ground, to remove protection.
MB3775 short pin 15 to ground, to remove protection.
MP1038EY Connecting wire pin 11 and pin 2 ,to remove protection.
OZ960, OZ962, OZ1060 short pin 2 to ground, to remove protection.
OZ964 short pin 2 to ground, to remove protection. Tested 3/2015 on 
Sanyo 
DP42848
OZ965 short pin 4 and pin 6 to ground, to remove protection.
OZ9938 1. pin 3 short to ground. 2. pin 6 short to ground. 3. pin 7 shortto ground,
remove the grounding resistance ,to remove protection.
OZ9RR short pin 8 and pin 9 to ground, to remove protection.
TL1451 short pin 15 to ground, to remove protection.
TL494 short pin 1 and pin 16 to ground. If not work, short pin 4 to 
ground.
TL5001 short pin 5 to ground ,to remove protection.
TL5451 short pin 15 to ground, to remove protection.

 For more details please contact +923139292880

 Add more tips in comments area .
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on

20 comments:

  1. kajubiJune 8, 2017 at 11:42 PM

    Thank you for this useful information you have shared with us.

    ReplyDelete
    Replies
    1. Imran AshrafJune 9, 2017 at 9:38 PM

      It's my pleasure my friend
      Thank you for visiting my page

      Delete
  2. UnknownJune 9, 2017 at 3:58 PM

    Whts the meaning of accurate sir?

    ReplyDelete
    Replies
    1. Imran AshrafJune 9, 2017 at 9:41 PM

      In which sequence you ask please let me know .

      Delete
    2. UnknownJune 10, 2017 at 8:54 AM

      U R LIGHTENING SOME TECHNICIAN LIFE ....GREAT JOB HATS OFF U BROTHER GOD BLESS U :)

      Delete
  3. Imran AshrafJune 12, 2017 at 8:06 PM

    It's my pleasure my friend always trying better from my side .
    Thanks again

    ReplyDelete
  4. RAJESH SEBASTIANJuly 18, 2017 at 9:34 PM

    👏

    ReplyDelete
  5. RAJESH SEBASTIANJuly 18, 2017 at 9:34 PM

    This comment has been removed by a blog administrator.

    ReplyDelete
  6. syed shafiudeenJuly 18, 2017 at 10:01 PM

    Always Imran Master is great

    ReplyDelete
  7. UnknownSeptember 15, 2017 at 4:48 AM

    great job sir imran...

    ReplyDelete
  8. UnknownDecember 6, 2017 at 2:03 AM

    Thank You.Sony TV Service Center in Hyderabad also provides useful information. From my personal experience I'm suggesting them.

    ReplyDelete
  9. Imran AshrafJanuary 12, 2018 at 10:32 AM

    Thanks all friends

    ReplyDelete
  10. UnknownJanuary 14, 2018 at 12:45 PM

    Thank you very much great info

    From Electronicabc.com

    ReplyDelete
  11. Imran AshrafMay 27, 2018 at 6:59 AM

    Thanks

    ReplyDelete
  12. Home Appliances Repair ServicesJune 23, 2018 at 1:22 AM

    Very Helpful Information for every Repair Tech.
    This is good place to discuss our Technical related issues on LED Televisions.. Thank you for making this platform!
    For Technical related issues related to your LED, LCD, Plasma, Curved LED, OLED, Ultra HD LED, 4K LED of the Brand LG in Bangalore click on the below link
    LG LED TV Service Center Bangalore

    ReplyDelete
  13. UnknownAugust 12, 2018 at 6:08 PM

    Como facf para comprar e receber por e-mail ?

    ReplyDelete
  14. UnknownSeptember 28, 2018 at 5:56 AM

    Thanks sir very useful tips

    ReplyDelete
  15. UnknownNovember 7, 2018 at 10:03 PM

    Very useful information for led technician

    ReplyDelete
  16. Support Guide August 15, 2019 at 4:44 AM

    Thank you for your support and your love

    ReplyDelete

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