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Tuning flakey for first few minutes after powering up

PanP

New Member
When I first power the box up, or come out of standby after it's not been on for a while, the tuning is very flakey - the screen is either blank or full of noise. Sometimes there's a message that nothing is being transmitted on that channel. After a few minutes the tuning sorts itself out and reception is clear. It feels like something has to warm up before the tuning works properly. Any ideas what the problem might be? I've rescanned channels mutliple times but it makes no difference. Thanks.
 
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