Question about Zenith L13V36 13" Flat Panel LCD Monitor

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My crt monitor has been displaying horizontally coloured lines.iam chechking all the cables but it is ouite right now pls help me

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Hello,this is vertical IC loose connection. The vertical output components either a transistor or an IC is probaly got a bad solder joint. Also another possibility is the deflection pins. Buy soldering iron and solder from electronic work to repair the connections.Take the back off of it after it is unlpugged and disconnected from the computer and check the bottom of the circuit board for bad solder joints.I recommend you to be serviced by a technician.

Posted on Feb 05, 2010

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Posted on Jan 02, 2017

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Hi,

Appreciate the "Ask Me".

I am assuming that you have more than just familiarity with electronic components and circuitry, the use of a DVM and a soldering iron. Further, that you have access to a service manual.

Width problem is basically insufficient horizontal deflection, then analysis would have to be in the horizontal section. Areas to initially focus on:
  1. 12V line and pin 29 of IC401;
  2. 110 V peak to peak at collector of Q403, if yes check Q 402 & 404 as well as T401;
  3. other components that affect the horizontal size are:
  • IC201
  • Q 405, 406, 407 & 408;
  • D409
  • L401
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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