"N_Cook" wrote in message
...
Not my usual area of repair but change as good as a rest ,they say
Schematic not in the service manual , well not the one on
http://servicemanuals.pro/serviceman...A%2F%2Fdisk.ka
relia.pro%2Fg%2Fgenard%2Fservice_manuals%2Fpanason ic%2Fhome_appliance%2Fkad0
105444c3.zip

I've never used one so am unfamiliar. Is the motor function separate from
the heater function - I assume so, both are failing to operate it would
seem. Unit was working fine and then failed to start one time. LCD and
option selections work fine, press Start , the red LED goes on but then no
motor or heater and no Err in the LCD display.
Fuses and wiring ok, seems to have 2 control lines through the interboard
ribbon , one to a relay for the heater and one variable one to a triac for
the motor. All associated minor components seem fine testing cold (no
isolation Tx here , everything hanging off the mains), no hot spots.
Solder
to main 64p SMD seems ok. Not full of cooking grime
What is a supercap doing on the power board , not connected through the
ribbon to the control board, some relay hold-off or hold-on funtion at
switch off for some safety reason , rather than memory retention ?





Oh, and when they start, there will not be any heater.
The motor will mix and knead the dough and rest, through several cycles over
perhaps an hour or so, before any heating ever takes place.




Gareth.