thomann TA 600 help

[hs5424]

Hi All,
I am repairing a TA 600 amp for a friend that has some O/P tranny's on one side faulty.Some of the bias resistors look stressed arount the transistors so I need a schematic to confirm their proper value. I don't want to start messing with the working side for comparsions if I can avoid it. This would involve removing components in order to gain access to the underside of the PCB.
Any help appreciated.

 

[duncan2]

Have a read of-


thomann pa amp

 

[hs5424]

Misunderstanding.
O/P tranny should be O/P transistors.

 

[jan.didden]

Hi All,
I am repairing a TA 600 amp for a friend that has some O/P tranny's on one side faulty.Some of the bias resistors look stressed around the transistors so I need a schematic to confirm their proper value. I don't want to start messing with the working side for comparisons if I can avoid it. This would involve removing components in order to gain access to the underside of the PCB.
Any help appreciated.

You can just measure the resistance of the 'good' resistors when the amp is off. No need to remove anything.
Or read the value from the good ones. What type are they?

Jan

 

[hs5424]

Thanks for your reply.
As I am servicing electronics for almost 40 years I got very confused when resistors that are color coded brown, black, brown measures 3K ohms. I checked the working side found the same so I am really confused. maybe the China man uses a different resistor color code to the rest of us around the world.
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