Sharp R-630A Service Manual page 23

R-630A (W)
R-630A (IN)
R-630A (B)
Description
Grill heating element driving signal.
or dual cooking; "H" level otherwise.
Magnetron high-voltage circuit driving signal.
To turn on and off the cook ON/OFF time ratio in Mi- ON/OFF time ratio in
ki Mit ki
relay (RY). In 100% POWER
{a S2se0ond time base)
(a. 48second imebase)
operation, the signals hold "L'
10%) the signal turns to "H" 50% __| 18sec. 50% ___| 26sec. | 22sec,
level and "L" level in repetition
.
. | [30% | 16sec. | 32sec.
according to the power level. z - | [10% &sec. | 40sec.
ven lamp, fan motor and turntable motor driving signal.
To turn on and off shut off relay (RY1).
The square waveform voltage is
delivered to the RY1 driving circuit. Bog cooing coor bY
R50-R52
Terminal not used.
R53
Signal coming from tact switch.
When either of tact switches SW60-SW63 is touched, a corresponding
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R53 terminal
while the tact switch SW60 is touched.
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R53 terminal
while the tact switch SW6i is touched.
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R53 terminal
while the tact switch SW62 is touched.
R63
Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R53 terminal
while the tact switch SW63 is touched.
R70-R73
Terminal not used.
it
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.) LCD (Pin No.) LSI signal (Pin No.)
LCD (Pin No.)
SEG 0 (1).. ox SEG 6 (7)
SEG 1 (2).. SEG 7 (8)..
SEG 2 (8).. SEG 8 {9)..
SEG 3 (4).. 4 SEG 9 (10)
SEG 4 (5).. ee SEG 10 (11).
SEG 5 (6).. - SEG 11 (12)
Terminal not used.
Power source voltage input terminal.
Connected to GND.
Terminal not used.
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