Sharp R-8320E, Service Manual

Page: 68 / 140

Pin No.
Signal
Description
37
OUT Oven light and turntable motor driving signal.
To turn on and off the shut-off relay ). “H” level during both microwave and
convection cooking; “L” level otherwise.
38
OUT Heating element driving signal.
To turn on and off the heater relay.
“H” level during cooking; “L” level otherwise.
39
OUT Cooling fan motor driving signal.
To turn on and off the shut-off relay ( “H” level during both microwave
and convection cooking; “L” level otherwise,
At the end of the convection cooking:
A. If oven temperature has reached approx. 1 or higher, the signal holds
“H” level until the oven temperature below than approx. 80°C.
B. When oven temperature has been lowered to approx. the signal holds
“L” level.
40
OUT Damper motor driving signal.
To turn on and off the shut-off relay ( “H” level when cooking condition
is changed from convection to microwave or from microwave to convection, and
also when power supply cord is initially plugged in or the end of convection
cooking; “L” level otherwise.
41
OUT
Output signal to be used for data suppling with respect to terminal of
(l-2:
42
IN
signal to be used for data reception with respect to terminal of
LSI (l-2:
67