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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
Zenith 32" SL3285BG Blows fuse

 
 


lamer
New User

Feb 25, 2005, 11:42 PM

Post #1 of 10 (1745 views)
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Zenith 32" SL3285BG Blows fuse Can't Post
I have a Zenith 32" SL3285BG that keeps blowing fuse FX3403 (2A).

Set has no raster, but it has sound.

Any suggestions what to check out?



534881
New User

Feb 27, 2005, 9:51 PM

Post #2 of 10 (1725 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
MOST OF THE TIME YOU'LL FIND A SHORTED HORIZONTAL OUTPUT TRANSISTOR.

534881


lamer
New User

Feb 27, 2005, 10:01 PM

Post #3 of 10 (1724 views)
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Re: [534881] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
That was one of the fiirst things i checked :) Any other suggestions ?


534881
New User

Feb 28, 2005, 12:29 AM

Post #4 of 10 (1719 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
THE NEXT THING I DO IS DISCONNECT THE BOARD FROM THE SET AND TRY TO FIND THE SHORT WITH A VTVM.GETTING THE SERVICE INFO SEEMS TO ALWAYS BE A HASSLE UNLESS YOU JUST PAY SAMS THE 20 DOLLARS FOR THE SCHEMATIC. THE HIGH FAILURE RATE ITEMS ARE USUALLY THE HORIZ OUTPUT TRANSISTOR, FLYBACK AND THEN CAPS IN THE HORIZ SWEEP CIRCUITS. DEPENDING ON THE CIRCUIT DESIGN, A HORIZ CKT CHIP/IC IS ALWAYS MY NEXT SUSPECT.

GOOD LUCK


zenithguy
New User

Mar 9, 2005, 11:10 PM

Post #5 of 10 (1695 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
Did you get yout set repaired? If not there is usually a diode in the horz or secondary of power supply shorted. If you still need hel I need the board number IE 9-????.

zenithguy


lamer
New User

Mar 10, 2005, 3:28 AM

Post #6 of 10 (1691 views)
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Re: [zenithguy] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
No I didn't get the set repaired, and I still need help. Thank you for you offer.. i'll be posting the board number within a day or two.


lamer
New User

Mar 11, 2005, 12:08 AM

Post #7 of 10 (1675 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
SMPS/SWEEP Module 9-1269

Thank you for your help.


lamer
New User

Mar 31, 2005, 11:43 PM

Post #8 of 10 (1630 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
Zenithguy, where are you ? - Help Please


shadetree
Veteran

Apr 1, 2005, 1:32 AM

Post #9 of 10 (1627 views)
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Re: [lamer] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
give up send module to tristate module and have rebuilt for around $80


mel
Veteran

Apr 1, 2005, 10:20 PM

Post #10 of 10 (1612 views)
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Re: [shadetree] Zenith 32" SL3285BG Blows fuse [In reply to] Can't Post
A fellow tech just had the exact problem with that module and found that the flyback was bad. He obtained a replacement flyback from MAT Electronics and though it solved the original problem, the set now plays for 5 or 10 minutes before shutting down. We are still trying to figure out if it is the replacement flyback or some other related problem. Shadetree's suggestion seems to be the simplest solution. You might also want to check out www.FreeFlatScreens.com/?r=10948674 for an opportunity to earn a free replacement for this set with a little effort on your part.

 
 
 


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