[TechAssist] Re: Thomson ICC7 purple flash in CRT
- From: "C&W Electronics" <c_w_electronics@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 13 Feb 2003 21:20:08 -0600
After only 40 years, your symptom indicates a cracked CRT. Just disconnect
the CRT socket and see if it still shuts down. You may have to disconnect
the anode lead also, as the HV may try to arc to the other CRT pins.
Also get more history on the set. See if it has been dropped? If not,
further investigation may be needed to discover the reason, such as excess
HV or heat from Yoke arc. Of course it won't be worth repairing.
My 2 cents.
Good luck,
Paul W
C&W Electronics
Azle Texas
----- Original Message -----
From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, February 13, 2003 9:26 AM
Subject: [TechAssist] Thomson ICC7 purple flash in CRT
> Hi.
> I've only been repairing TV's professionally for a couple of months, this
is the first one with CRT problems so i thought i'd ask:
> When I switch on this set (Thomson, or Ferguson, as you like it) with ICC7
chassis i see a purple flash in the neck of the CRT and the set goes to
protection. The customer said that before it went dead the colors were
"wrong". Is a broken CRT the only possibility in this case or might
something else cause the blue flash?
>
> TIA
> Stefaan Van Slycken
> Van Slycken Elektro - Waasmunster, Belgium.
>
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