[Solved] Voxicon LED TV bad supply board, fuse blown


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[Solved] Voxicon LED TV bad supply board, fuse blown

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Trynez
New User

Dec 31, 2019, 5:36 PM

Post #1 of 4 (1289 views)
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[Solved] Voxicon LED TV bad supply board, fuse blown	Can't Post

I have a Voxicon LED TV with model number VXV149F which i got for free.
There's no lights or anything as the fuse is blown, so i tried replacing the fuse which accidentally was too big and lead to some arcing.
All the capacitors seems fine, there's 1 smd resistor blown and another resistor, but none shorting, all diodes seems good too.
I doubt those 2 blown resistors could cause an arc..
Any help and ideas is greatly appreciated Cool

I've marked the bad resistors in the 2 pictures;
https://i.imgur.com/qxRVAA1.jpg Top View
https://i.imgur.com/5wG4QJf.jpg Bottom view

(This post was edited by Trynez on Feb 8, 2020, 11:02 AM)

Trynez
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Jan 13, 2020, 12:00 AM

Post #2 of 4 (1259 views)
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Re: [Trynez] Voxicon LED TV bad supply board, fuse blown [In reply to]	Can't Post

A little update to what i know so far.
I removed the SMD resistor under the pcb i marked and no sparks, no power either, which makes me believe that the 8 pin IC at the left for the blown resistor (labeled U201) is shorted, however i cannot find anything about it. I would be happy if anyone could help me out Cool

the IC is labled as "6017805" and below that "1A50".

Thanks,

(This post was edited by Trynez on Jan 16, 2020, 5:42 PM)

jts1957
Veteran

Jan 16, 2020, 5:05 PM

Post #3 of 4 (1229 views)
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Re: [Trynez] Voxicon LED TV bad supply board, fuse blown [In reply to]	Can't Post

Contact Voxicon.
Many well-known manufacturers Wink

, should have service literature and a technical assistance phone line.

-------------------------
Location: Far, Far Away

Trynez
New User

Feb 8, 2020, 11:07 AM

Post #4 of 4 (1128 views)
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Re: [Solved] Voxicon LED TV bad supply board, fuse blown [In reply to]	Can't Post

Thanks, i managed to get a new IC component replacement (located at U201) called 78L05A and replaced both resistors and fuse and it's working now Cool

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