[TechAssist] Re: High voltage arcing, what's the cause?
- From: woodman1@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 28 Dec 2003 12:24:37 -0500 (GMT-05:00)
Stefaan,
Could be many causes, open connection from CRT ground to chassis
ground, HV to high, bad CRT socket or even air leaking into the CRT.. Last part
you can check by unplugging CRT socket..put jumper on CRT ground other end to
small screwdriver..with set on.. touch pins on CRT socket if they arc picture
tube causing problem...
Hope this helps...
Bob
Bobs TV
Worcester, ma
-----Original Message-----
From: Stefaan Van Slycken <vanslycken@xxxxxxxxxx>
Sent: Dec 28, 2003 10:32 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] High voltage arcing, what's the cause?
Customer gave me a coin-op arcade game (mortal combat II) with the complaint
that it crackles & smells. When switched on there's very severe arcing around
the HV cable - purple arcs from HV cable to demagnetisation and gnd cables
around the CRT. I must say that this game hadn't played in a while and may or
may not have been stored in a moist environment. What causes these severe
arcs? Bad CRT, bad LOT? I've never seen anything like this outside a CRT
before...
kind regards,
Stefaan Van Slycken
Van Slycken Elektro
Waasmunster
BELGIUM
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