[TechAssist] Mitsubishi VS50501A (VZ4 chassis) intermittently goes dark then back to normal
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Fri, 28 Jan 2005 16:08:20 -0500
I have a problem set at a local bar. The complaint is that the picture goes
dark intermittently and will go back to normal brightness. The set is up on
a shelf with little room to move it in a small corner that would be tough to
service even on the floor. The Super Bowl is around the corner and they sure
don't want me to remove it here in the heart of Patriots Nation. Of course
they are hoping to have it repaired by the Super Bowl! I did make a service
call and did not observe it going dark, however, it did appear to be too
bright (I suspect the transistors on the CRT boards). I was only able to
remove the front cover to inspect the chassis and took a good look for any
evidence of CRT coolant leakage and could not find even the smallest trace.
My 200 volt line was reading about 221 volts. I know there are those of you
with much more experience on these sets than myself. I found nothing
relevant on the Mitsubishi website or in WINSTIPS. Unfortunately I can't
give you more than this presently but I am hoping someone has some ideas
given the circumstances under which I must work on it.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxx
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
