Sharp R-7A55 User Manual

22
R-7A55(W)/(B)
R-7E45(W)/(B)
ON
OFF
During
cooking
L
GNDH
ON
OFF
L
GNDH
ß
H
L
GND
VP
(50Hz)
D6
D7
D8
D9
D10
D11
ß(50Hz)
GND
VP
Pin No. Signal I/O Description
20 AN0 IN Temperature measurement input: OVEN THERMISTOR.
By inputting DC voltage corresponding to the temperature detected by the
themistor, this input is converted into temperature by the A/D converter built into
the LSI.
21-27 AN1-AN7 OUT Terminal not used.
28 AN8 IN Input signal which communicates the door open/close information to LSI..
Door closed; "H" level signal.
Door opened; "L" level signal.
29-31 AN9-AN11 IN Connected to VC.
32/33 AVCC/VCC IN/IN Connected to GND.
34 INT0 IN Signal synchronized with commercial source freqency(50Hz).
This is basic timing for time processing of LSI.
35-36 D1-D2 OUT Terminal not used.
37 BUZZ OUT Signal to sound buzzer.
A: key touch sound(0.12sec.).
B: Completion sound(2.4sec.).
38 D4 OUT Cooling fan motor driving signal.
To turn on and off shut-off relay (RY6). "H" level
during both microwave, Grill and convection
cooking; "L" level otherwise.
39 D5 OUT Damper motor relay driving signal.
To turn on and off shut-off relay (RY7).
40-45 D6-D11 OUT Digit selection signal.
The relationship between digit signal and digit are as follows:
Digit signal Digit
D6 .................. 1st.
D7 ................. 2nd.
D8 ..................3rd.
D9 .................. 4th.
D10 ................ 5th.
D11 ................ 6th.
Refer to the touch control panel circuit about the
relation between signals and digits. Normally,
one pulse is output in every synchronized signal
(ß) period, and input to the grid of the fluorescent
display.
46-47 D12-D13 OUT Segment data signals.
The relation between signals and indicators are as follows:
Signal Segment Signal Segment
D12 ............ UB R91................ f
D13 ............ LB R92 ............... g
R80 ............... a R93................ c
R81 ............... h R10............... e
R82 ................ j R11............... p
R83 ............... k R12 ............... n
R90 ............... b R13............... d
Refer to the touch control panel circuit for the relationship between signals and
indicators. Normally, one pulse is output in every synchronized signal (ß) period,
and input to the anode of the fluorescent display.

Sharp R-7A55 Specifications

General

Brand	Sharp
Model	R-7A55
Category	Microwave Oven
Language	English