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BEOMASTER 8000 uPC

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Spassmaker
Top 500 Contributor
North Germany
Posts 203
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Spassmaker Posted: Sat, Sep 18 2021 5:54 PM

Hi all

Got a non working Beomaster 8000, recapped 5 V regulator and Powersupply board but still not working.

Display comes with random numbers, Keyboard is not responsive because only "PHASE 1 " is comming sometimes and with wrong frequency, btw. 2 Mhz crystals are new, 2MHz is present, railvoltages are present and clean, caps are new.

Reset circurit and voltage for LED / PHASE is adjusted to service manual values.

After swapping the Controller IC's from my working BM 8000 the amp was working, figured out that the Master IC is dead.

First time a dead CPU, very rare but.....

So my question is if there is someone who has a working IC3 type 8340238 or a spare uPC board in stock for sale with a reasonable price.

Please PM me with price incl. shipping to Germany.

 

Thank you very much for digging in the dungeon Thumbs Up

 

Kind regards

Christian

Spassmaker
Top 500 Contributor
North Germany
Posts 203
OFFLINE
Silver Member
Spassmaker replied on Sun, Oct 17 2021 10:07 AM

BUMP Big Smile

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