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Digitrex CTF 4071A Problem


Novice Member
Hi Folks,
I have a problem with a Digitrex ctf 4071A in as much as that when it is turned on, it starts up OK, but after approximately two minutes the screen goes off,but their is still sound.
Had the TV examined by an Engineer who said he was 95% sure the problem was the Inverter Board. Obtained a replacement Inverter Board and had it installed.
Unfortunately the same problem still persists !!!!
Could anyone suggest what the problem might be?
Thanking you in anticipation,

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