[TechAssist] Re: CROWN AMCRON MICROTECH-1000
- From: tvdoctors@xxxxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: 03 Oct 2001 17:20:41 -0800
Try checking CAPs!
> ** Original Subject: [TechAssist] CROWN AMCRON MICROTECH-1000
> ** Original Sender: "Hans" <nettaberfrech@xxxxxxxxxxx>
> ** Original Date: Wed, 3 Oct 2001 19:05:57 -0500 (EST)
> ** Original Message follows...
>
> Hi there.
> A bit unusual question in here, I know.
>
> I recently got a CROWN AMCRON MICROTECH-1000 Power-Amplifier in my workshop.
>
> Customer says before it was permanently clipping it sometimes went into
> clippping just out of nowhere.
>
> Transformer delivers 90 Volt +/-, all transistors seem to be ok (measuring
> says so), powersupply for pcb works, too.
>
> But nothing´s happening- stays in clipping-mode - LED´s show disabled.
> No output, not even a minor signal ... it´s standing on my desk - I have no
> idea anymore ... has anyone of you??? Who knows something about these amps ?
>
> I soldered out ALL power-transistors and checked them - they all look good.
>
> I can´t order the circuits here (in germany) - they told me via phone I need
> to get them in the states.
>
> That´s too much cost-effort for us and the customer.
>
> I´d be grateful for every repair tip !!!
>
> Thanx to u all and keep up the good work - I got two TV´s repaired by just
> reading the newest emails every morning ... !
>
> NILZ (from germany) :o)
>
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>** --------- End Original Message ----------- **
>
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