JCM 2000 DSL 100 Bias problem

[bnwitt]

Well, I just had another DSL 100 come through the shop with the same old problems. C46 shorted and one of two bias pots had cracked solder joints. These two items are so repetitive that they should be worthy of a factory service bulletin.

[kalaheo]

im having a small nightmare with my bias on the dsl 100, replaced bias resistors and the thing is going through the roof with way too much voltage im stuck out on an island literally kauai, with no help. any ideas on the the next step i should take, its a 2007 and cant get a scematic. thanks

[rf7]

Pull the power tubes and then check the bias voltage. Is it still too high?

[kalaheo]

yeah its still too high.

[Enzo]

Let's not get spread all over the place, let's discuss your amp in your amp's own thread nearby.

[mullardel34]

The problem won't be bias voltage too high- it will be too LOW.

[acorkos]

...its a 2007 and cant get a scematic. thanks

check here:
Marshall Amps Info & Schematics
all the schematics for the dsl100 are listed