cbr6861
Member
Last Activity: 03-21-2021, 06:54 PM
Joined: 06-02-2014
Location: Van Nuys, CA
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hi-freespace518 was hong kong ebay vendor. Good Luck -
hi - it looks like my apex 32" lcd tv uses the same power supply/inverter that you posted about - MIP329FL or MIP320FL. i'm wondering if you remember which vendor on ebay you got yours from - they are a number of version Q3 boards listed & it would be great to know your vendor who supplied a good product. no hurry as it's a spare tv. thanks for your attention -
Re: Sceptre x322bv-hd powers up w/sound-but no picture
Just wanted to shoot an update this post. I went ahead and replaced the entire power board as a unit, although I'm pretty sure the high voltage winding as Budm mentioned was the culprit. Once installed...walla! I got backlight coming on, and once all put back together the set has been working since. I wanted to thank this awesome forum and specifically Budm & DGtech for jumping in to assist, couldn't have done it without you guys.... -
Re: Sceptre x322bv-hd powers up w/sound-but no picture
in the 2k range i get .000 on the secondary and nothing on the primary. on the 200 range i get 1.5 on the secondary and nothing on the primary.Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
seems to me the coiling has been compromised somewhere in the windingLeave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
yup-
MIP320FL-T3 .... I can get one on ebay coming in from china.
Does this appear to be faulty?Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
I decided to pop off the big transformer (the one w/ yellow tape around it) and have a looky. Something caught my eye that seemed odd. One of the wires running to its lead on the output side appeared to be slightly burned.
When I put my meter across the 2 [I]input[/I] leads i got a beep. when i put them across the 2 [I]output[/I] leads i got nothing.
Im not sure how to test a transformer , so i decided to do the same with another transformer i had lying around. I got beeps from both sides on that one. I put up...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
yes...that would be a problem then....Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
from all the posts i've been reading on badcaps with this same model tv...the inverter section of the power board does appear to be the culprit in solving their problem. but WHAT exactly in the inverter section is at fault. That is the mission i'm on.Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
they are around 40 coming in from china on ebay. SJ is outta stock as well as most everybody in the US from what I'm finding.
I don't have a clue on how to get a diagram for this. where would i need to go/look.Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
what do you think?, I mean i can find one on ebay to replace (thats no biggy). was kinda bent on trying to find out what the problem is ...BUT the reality is ...its a cheap tv and i guess the line has got to get drawn at some point before it gets to ridiculous. For myself, I saw this as a chance to learn more about electronics and the strategy behind the diagnosis.
As far as diagrams go....I would have no idea where to even get/find one.
Do you feel the problem lies on the board alone or could it be beyond the...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
your right there are 6-
here are the results:...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
don't mean sound like a bozo, as this is all new to me , and i appreciate all you've done so far. Are you referring to the area that i circled in post 21? D17 & 18, Q22, 23, 24, 25Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
here are the readings i got in 'diode mode' on the dmm. both mosfets read the same...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
can these be checked in the circuit or do i need to pop them out to test...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
not yet, not sure on how to test with my analog meter for capacitance.
I have an electronics store really close to me which I'm heading to so I will just pick up the 2 while I'm there & replace them....Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
Heres the back of the board. looking with magnifying glass-q23 & d17 look questionable....Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
will post it...Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
so the voltages look as they should on those 2 white connectors at the top?
the ones you asked about before that aren't labeled....Leave a comment:
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Re: Sceptre x322bv-hd powers up w/sound-but no picture
*bump*
Can anybody help me out?Leave a comment:
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