In article , Trevor Wilson
wrote:


**Probably not. If you want to persevere though. your best move is to
obtain a service manual, so you can interpret the fault codes.

Jings. Sounds like trying to repair such beasts is similar to trying to
sort out modern TVs with their fancy 'menu' systems.

The service manual will also provide the procedure to over-ride the
protection system, so you can fault find. The protection system in those
critters is a very sophisticated arrangement. It will shut the amp down
in response to a whole host of different things, including (but not
limited to):

* DC offset. * Over current in output stage. * Regulater power supply
faults. * DSP faults. * Microprocessor fauts.

That tends to feed my predjudice that the protection circuitry tends to
bring with it a set of additional 'failure modes' and sources of problems.
:-)

Slainte,

Jim

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