R-22AT

R-24AT

DESCRIPTION OF LSI

LSI(IXA222DR)

The I/O signal of the LSI(IXA222DR) is detailed in the following table.

Pin No.

Signal

I/O

 

 

 

 

Description

 

 

 

 

 

 

1

VCC

IN

 

Power source voltage: GND.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VC voltage of power source circuit input. Connected to GND.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

VEE

IN

 

Anode (segment) of Fluorescent Display light-up voltage: -35V.

 

 

 

 

 

 

 

Vp voltage of power source circuit input.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

AVSS

IN

 

Reference voltage input terminal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A reference voltage applied to the A/D converter in the LSI. Connected to DC. (-5V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

VREF

IN

 

Reference voltage input terminal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A reference voltage applied to the A/D converter in the LSI. Connected to GND.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-6

AN7-AN6

IN

 

Terminal to switch the specification.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

AN5

IN

 

Temperature measurement input: EXHAUST THERMISTOR

 

 

 

 

 

 

 

By inputting DC voltage corresponding to the temperature detected by the thermis-

 

 

 

 

tor, this input is converted into temperature by the A/D converter built into the LSI.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

AN4

IN

 

Input signal which communicates the door open/close information to LSI.

 

 

 

 

Door closed; "H" level signal (0V).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Door opened; "L" level signal (-5.0V).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

AN3

-

 

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

AN2

IN

 

Temperature measurement input: MAGNETRON THERMISTOR TH2.

 

 

 

 

 

 

 

By inputting DC voltage corresponding to the temperature detected by the thermis-

 

 

 

 

tor, this input is converted into temperature by the A/D converter built into the LSI.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

AN1

IN

 

Temperature measurement input: MAGNETRON THERMISTOR TH1.

 

 

 

 

 

 

 

By inputting DC voltage corresponding to the temperature detected by the thermis-

 

 

 

 

tor, this input is converted into temperature by the A/D converter built into the LSI.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

AN0

-

 

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13-14

P55-P54

-

 

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

P53

OUT

 

Magnetron (MG1) high-voltage circuit driving signal.

 

 

 

 

 

 

 

 

 

 

To turn on and off the cook relay. In 100% power level operation, "L" level during

 

 

 

 

cooking; "H" level otherwise. In other power level operation (90, 80, 70, 60, 50, 40,

 

 

 

 

30, 20, 10 or 0%), "H" and "L" level is repeated according to power level.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power level

ON

OFF

Power level

 

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100%

48sec.

0sec.

40%

 

22sec.

26sec.

 

 

 

 

 

OFF

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90%

44sec.

4sec.

30%

 

16sec.

32sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80%

40sec.

8sec.

20%

 

12sec.

36sec.

 

 

 

 

 

 

 

ON

 

 

-5V

 

 

 

 

70%

36sec.

12sec.

10%

 

8sec.

40sec.

 

 

 

 

 

48 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60%

32sec.

16sec.

0%

 

0sec.

48sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50%

26sec.

22sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

P52

-

 

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

P51

OUT

 

Magnetron (MG2) high-voltage circuit driving signal.

 

 

 

 

 

 

 

 

 

 

To turn on and off the cook relay. In 100% power level operation, "L" level during

 

 

 

 

cooking; "H" level otherwise. In other power level operation (90, 80, 70, 60, 50, 40,

 

 

 

 

30, 20, 10 or 0%), "H" and "L" level is repeated according to power level.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power level

ON

OFF

Power level

 

ON

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100%

48sec.

0sec.

40%

 

22sec.

26sec.

 

 

 

 

 

OFF

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90%

44sec.

4sec.

30%

 

16sec.

32sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80%

40sec.

8sec.

20%

 

12sec.

36sec.

 

 

 

 

 

 

 

ON

 

 

-5V

 

 

 

 

70%

36sec.

12sec.

10%

 

8sec.

40sec.

 

 

 

 

 

48 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60%

32sec.

16sec.

0%

 

0sec.

48sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50%

26sec.

22sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

P50

-

 

Terminal not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

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Image 19
Sharp R-22AT, R-24AT service manual Description of LSI, LSIIXA222DR

R-22AT, R-24AT specifications

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