Lsi (L-L: Ix2075Ya) - Sharp R-8320E Service Manual

Signal
Pin No.
OUT
37
OUT
38
OUT
39
40
OUT
41
OUT
42
IN
Oven light and turntable motor driving signal.
To turn on and off the shut-off relay (RY2 ). "H" level during both microwave and
convection cooking; "L" level otherwise.
Heating element driving signal.
To turn on and off the heater relay.
"H" level during canvection cooking; "L" level otherwise.
Cooling fan motor driving signal.
To turn on and off the shut-off relay ( RY3). "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 20°C 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. 8O"C, the signal holds
"L" level.
Damper motor driving signal.
To turn on and off the shut-off relay ( RY4). "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.
Output signal to be used for data suppling with respect to Do terminal of LSl
(l-2: IX2075YA).
LSI (l-2: IX2075YA).
67
Description