Amstrad DRX300 & Grundig 3000

S

stocksie

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These Sky boxes showing "No signal received" on apparantly random channels.
No default channel strength or quality showing plus "no lock" but both receive
BBC2 ITV1 and 2 etc. Nothing on 501 Sky News. Both from the same source.
Could they have had forced download under poor signal condition? Not familiar with this condition! Is there a rescue for them? Both PSU`s capacitors test OK. TIA.
 
Analoguesat

Analoguesat

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Grundig 3000's are notorious for psu caps failure - my own box expired with exactlty the same symptoms as you describe which got worse and worse over 2-3 months until it totally failed.

How have you tested the caps?
 
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stocksie

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Thanks for the reply Analoguesat and for the advice about the DRX300. It appears
I may have jumped the gun lumping both units. They had very similar problems andcame from the same source with talk of "forced download" so I feared the worst. On further testing the Grundig it turned out to be the PSU C`s dried up. Replaced 8 which my trusty ESR meter identified (my best ever buy (1998) and such a time saver!). I have been over the Amstrad PSU but see no problem, I might have to return to the "swop the lot". I have no experience of the "forced download withno default reception, why the set receives 101 102 103 Men and motors etc with no signal orlock defeats me! But then I am 74!!
Anybody give me the DC levels from a working DRX300? I dont fish around with
Sky receivers much. Where are the EPG numbers linked with frequency and polarity information? TIA
 
Analoguesat

Analoguesat

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Your drx 300 problem could be a failing tuner:

although its not unknown for receivers with out of date software on them to have channels missing. If you have a suspicion it has been disconnected for a while and may have missed some software updates theres no harm in trying a forced upgrade - if you have a decent signal strength and dont mind the possibility of scrapping the box if it goes wrong due to wonky tuner or caps.
 
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OK thanks again. The Amstrad has not been used for many months so am sure it must have missed some updates. I am loath to force the issue in view of the lack of
default signal and lock indication. The present SW version is 3.4.4b. Will see what
happens after I replace the PSU C`s.
 
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