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Beomaster 2000 Type 2801 - R1

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Pindsen
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Pindsen posted on Sat, Apr 11 2020 2:02 PM

Hi,

I'm currently reparing a Beomaster 2000 type 2801 with numerous faults. One of them is power resistor R1 with a crack all the way through. The service manual do not reveal how many wattage only the resistance value (120R). Do any of you know how many watt is should resist?

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Dillen
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Dillen replied on Sat, Apr 11 2020 3:36 PM

Which module is this on?
Photo?

Martin

Pindsen
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Pindsen replied on Sat, Apr 11 2020 9:09 PM

Arhh sorry, Module 7 (Output Amplifier):

Dillen
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Dillen replied on Sun, Apr 12 2020 7:31 AM

The servicemanual gives it as 120 Ohms 10% 1W.
The one actually fitted seems to be a 2W type.

If it has burned you must investigate and find the reason.

Martin

Pindsen
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Pindsen replied on Sat, May 2 2020 10:08 PM

Hi,

The resistor was actually not burned, just cracked and with a higher value of approx. 142R.

Maybe the resistor was damaged due to 7IC101 and 7IC102 was short-circuited (7F101 and 7F102 was also blown). That apprently also damaged 7R110 and 7TR103. After replacing all components and adjusting the idle current the receiver played very well again.

/Pindsen

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