Thread: Beomaster 5000
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Old 28th Jun 2021, 9:56 pm   #1
Michael Maurice
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Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 6,691
Default Beomaster 5000

I am trying to repair one of these which when first looked at the standby light flashed.

I changed the electrolytics in the output stages together with the two presets, adjusting them to the same resistance as the ones they replaced.

The unit is now stuck on standby, the standby light is steady but dim.

I have gently heated the microprocessor board just in case it was capacitors but it made no difference.

I then bypassed the relay to get the amplifier switched on and measured the voltage on the output transistors, both channels were close to 0V as expected. The fault line was high as expected, forcing it low caused the standby light to flash.

Can anyone shed some light on what’s causing this?
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