MX-3640N Repeated C4-00 PTC error

[coopers1305]

Hello Guys,

I've got a 3640 that has a C4-00 code. I've updated the firmware, and replaced the following parts;

PTC Unit (Error returned promptly)
Primary and Secondary Transfers Units (No change at all in machine state)
TC PWB (Per Bulletin) (Error returned in hours)
Main Drive Unit (Per Bulletin) (Error returned in minutes)
PCU PWB (Error returned in hours)

In that order.

Tomorrow I'll be checking the voltage on the outlet to the machine, cleaning the inside of it and
replacing the TC PWB again per Sharp Tech Action Center.

If you have any ideas on what a guy could do to fix this error, I'd appreciate very much.

Thanks in advance.

[igi]

hi
try paper feed unit,
the cluthes can short and give you the problem.

[spanky]

See attached bulletins