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ARCHIVED FORUM -- March 2012 to February 2022
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This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022

 

Beomaster 8000 CPU

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Jonathan123
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Jonathan123 Posted: Mon, Oct 26 2020 6:20 AM

I did a rebuild and recap on my old beomaster and i was wondering if anyone repairs or has parts for the control board... the amp works all cleaned etc... BUT BUT BUT the radio  dial shows the frequency and i can hear it skip past frequencies. I think the IC is fried bo840239s. It had issues many before  I cleaned it. intermittent front panel working etc. Still not working all contacts are checked.

It there another IC that controls the channel control

Is it a lost cause ?

Jonathan123
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It is a Beomaster 8000

 

sonavor
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sonavor replied on Mon, Oct 26 2020 3:41 PM

Hi,

There are quite a few Beomaster 8000 restoration posts here on the Beoworld Workbench forum and on the Beolover Blog. Those will show you the scope of work typically required to restore them. They take a lot of work. The two microcomputer ICs on the Microcomputer board rarely fail unless someone damaged them. I would suspect them last regarding your problems. Faulting connections with solder joints on the board traces and cables are the most common source of problems. 

-sonavor

Jonathan123
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Thank you for the reply... I need to get a schematic and test the ic points, etc, etc. There was  a disc cap that blew next to an IC so i assumed that it damaged the IC.

 

frequency shows on display but signal passes by channels on the output speakers like it wont lock in.

so something in the computer system is not tracking or locking in.

i wish someone could direct me to possible causes. along with the intermittent touch pad working.

 

They are beautiful units and i would love to get this one working correctly.

Jonathan123
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Posts 4
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Bronze Member

Thank you for the reply... I need to get a schematic and test the ic points, etc, etc. There was  a disc cap that blew next to an IC so i assumed that it damaged the IC.

 

frequency shows on display but signal passes by channels on the output speakers like it wont lock in.

so something in the computer system is not tracking or locking in.

i wish someone could direct me to possible causes. along with the intermittent touch pad working.

 

They are beautiful units and i would love to get this one working correctly.

sonavor
Top 25 Contributor
Texas, United States
Posts 3,732
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Bronze Member
sonavor replied on Fri, Oct 30 2020 8:12 PM

You can read a bunch of information about various areas of the Beomaster 8000 on the Beolover Blog.

-sonavor

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