[TechAssist] Re: Hum bars in pic Mits VS-50605
- From: "Leonard Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 13 Jul 2005 10:57:30 -0400
Tim,
This chassis (VZ7) is known for having coolant leaks and they can be very
small and hard to find. Otherwise I would check the caps in the power
supply carefully. I have run into some strange problems that ended up being
caps with low capacitance and some with high DA.
You have verified that it is not a ground loop, right?
Leonard Caillouet
Electronics World
1261 NW 76 Blvd
Gainesville, FL 32606
352-332-5608
352-332-5668 fax
----- Original Message -----
From: "Tim Poole" <tdp13158@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 12, 2005 10:20 PM
Subject: [TechAssist] Hum bars in pic Mits VS-50605
This set has hum bars in the video. Customer said it would go away after
warmup but now stays constant. I checked the electrolytics in the regulator
portion of the signal board but all checked good. I had another with similar
problem and found a bad cap, but this seems to be different. Anyone seen
this? Thanks, Tim
Tim Poole tdp13158@xxxxxxxxxxx
dba A-Mobile TV Shop & Precision TV Service
Fredericktown, Ohio 43019
419-756-3443
740-694-8585
fax 740-694-1032
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