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gabris[LT]
Member
Last Activity: 11-19-2023, 04:36 AM
Joined: 06-02-2015
Location: Vilnius
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  • Re: Samsung T200HD backlight issues

    Sorry I didn't want to double post, but I don't see edit button anymore.
    After slightly bending the pins issues appeared again within few days, so I have soldered lamp wires straight into PCB, no more issues for already a week so far.
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  • Re: Samsung T200HD backlight issues

    I don't have such sockets nearby, so instead I have bent the pins inside them, works without backlight going off for already one hour.
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  • Re: E228WFPc - purple tint

    Hi, from my experience with the laptops purple tint usually is a symptom of dying bulb, in most cases I've seen after like 1min it goes back to normal, factory reset might trigger higher voltages on the inverter, max brightness for example.
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  • Re: Samsung T200HD backlight issues

    really strange things happening here.. I had 2 seconds to black, after disassembling the panel ant trying out different lamp connection combinations, 2 seconds to black issue disappeared and CFL lamps started to stay lit and pulling the wires at the bulb end doesn't do anything, so yet I cannot isolate the issue, but it looks like the problem is with the contact somewhere, yet I cannot say where.

    EDIT1: bending the cfl wire doesn't do anything either.

    EDIT2: when another lamps are connected it just blinks for a moment...
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    Last edited by gabris[LT]; 06-05-2015, 07:44 AM.

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  • Re: Samsung T200HD backlight issues

    Did reflow the mainboard once more yesterday, nothing changed and having assumed that powerboard and mainboard should be fine at this point, also after doing some research I'm assuming that it should be CFL bulbs, I have checked the CFL bulb connections yesterday by pulling the wires again, now I got to 2 seconds to black again, hopefully after fixing the loose wire it will be fine, will update this post straight after I'll check.
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  • Samsung T200HD backlight issues

    Hello, I have tried to solve problem with my monitor for quite a while now, yet unsuccessfully and hopefully someone will be able to help me.

    When I got this monitor it was suffering from 2 seconds to black problem. When I have disassembled it I haven't seen any bulged caps, nothing wrong visually at all, but as I didn't have an ESR meter I decided to replace all caps on power board, after doing so I tried to switch it on, nothing changed. Then I have noticed that some solder joints on main board looked like they have suffered from oxidation, I tried to reflow the main board using...
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    Last edited by gabris[LT]; 06-03-2015, 03:06 PM.

  • Re: New Members - please post your introductions here

    Hello, I'm new there, but have used solutions posted here previously to do some repairs.

    Currently I am 3rd year computer networking student, but been playing with electronics since I was 13 or so, started doing more serious repairs since I was 16.

    I am looking forward to getting some assistance with troubleshooting and helping others where my knowledge is sufficient.
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