Sharp R-961 (W) - Page 27

TOUCH
CONTROL/DESCRIPTION
OF
LSI
7 -44
P72
Convection heating element driving signal.
To turn on and off the heating element
relay (RY3). "L" level during convection
cooking or dual cooking, "H" level
otherwise.
rill heating element driving signal.
To turn on and off the bottom element
relay (RY4). "L" level during grill cooking
or dual cooking, "H" level otherwise.
Magnetron high-voltage circuit driving signal.
To turn on and off the cook ON/OFF time ratioinMicro ON/OFF time ratio in Micro
relay (RY2). In 100% POWER cooking cooking
operation,
the
signals
hold
"L"
(a.
32second
time
base)
(a.
48second
time
=
level during microwave cooking ae ae aaa
and "H" level while not S00K C00
cooking. In other cooking a
modes (70%, 50%, 30%, 10%) 13sec.
the signal turns to "H" level and 22sec.
"L" level in repetition
according to the power level.
eri tor relay drivi ignal.
To turn on and off shut-off relay (RY8).
“H" level during Rotisserie cooking; "L"
a otherwise.
rrel riving signal.
To fim on and off shut-off relay (RY7).
riving signal.
To turn on and off the fan motor relay
RY5. "L" level during cooking, or for as eee
5 minutes after grill cooking or dual During cooking, or for 5 mites or more
cooking. "HN level otherwise. (ster gi cooking, convectiin cooking or
onvection motor driving signal.
To turn on and off shut-off relay
(RY6). "L" level during
CONVECTION; "H" level otherwise.
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is appled.
Temporarily set to "L" level the moment power is applied, at this time the LSI is
reset. Thereafter set at "H" level.
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscil ation
circuit with respect to XIN terminal.
Internal clock illation fr n ntrol output.
Output to control oscillation input of XOUT.
Power source voltage: -5V. .
VC voltage of power source circuit input.
Terminal not used.
ignal coming from h key.
When any one of G2 line keys on key matrix is touched, a corresporcfing signal
from P11, P12, P13, P14, P15, P16 and P17 will be input into P23. When no
key is touched, the signal is held at "L" level.
ignal similar to P23.
When any one of G5 and G9 line keys on key matrix is touched, a
corresponding signal will be input into P22.
R-961 - 25