thetonywarren
Senior Member
Last Activity: 10-10-2025, 02:12 PM
Joined: 02-21-2013
Location: Green Bay, Wi.
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I replaced the main board with one from shopjimmy.com. Still having same issue. Returning main board back to shopjimmy.com -
Im unsure what the "standalone" test is. Can someone please give me some guidance with that? Or any other ideas if they have some?...Leave a comment:
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Here is what I measured after removing the power board/main board cable, then applying power....Leave a comment:
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ok, so are you saying to remove power, disconnect cable from powerboard to mainboard and then reapply power and check the pins on the powerboard? Sorry if that's a dumb question. Thanks!...Leave a comment:
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Ok, thanks for helping out.
Running your test as described. I have 2.22vdc on ps-on, when in standby. when I try to power on the set, meter does not move at all, not even momentarily.
AS far as bl-on, there is 0.07vdc at standby, also doesnt move when trying to power on.
pwm, 0.00vdc at standby, doesnt move at all when trying to power on.
Appreciate the guidance......Leave a comment:
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Did that already. Got replacement. Trying to repair this one, since supplier told us we could keep it or dispose. Would be nice to have an extra display on hand....Leave a comment:
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Sharp 4P-B43EJ2U wont turn on
Sharp TV/Display, wont turn on. Brand new, used for maybe 30 minutes. Possibly heard pop then set went dead. I took a look at the boards, no visual damage to boards. The led power indicator is ON, remote will not turn on. I verified that backlights do come on when powered with separate power supply/LED tester. I also...
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