Sharp KB5121KK - 30" Glass Ceramic Cooktop, Руководство по обслуживанию

Страница: 30 / 60

28
KB-5121KS/K/W
Pin No. Signal I/O Description
“L” level: During fan motor OFF.
90 AN6 IN AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the A/
D converter built into the LSI.
91 AN5 IN Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is an
analog input terminal from the AH sensor circuit, and connected to the A/D converter built
into the LSI.
92 AN4 IN Terminal to change the specifications of the LSI.
By using A/D converter contained in the LSI, DC voltage in accordance wityh the Model
in operation is applied to set up its cooking constant.
93 AN3 IN Input signal which inform the drawer door is in the middle position between the opened
position and the closed position, to LSI from the door position switch rear.
94 AN2 IN Input signal which communicates the oven door locked information to LSI.
Door unlocked; “H” level 5V).
Door locked; “L” level signal(0V).
95 AN1 IN Input signal which communicates the oven door unlocked information to LSI.
Door locked; “H” level 5V).
Door unlocked; “L” level signal(0V).
96 AVSS IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI.
97 AN0 IN Terminal not used.
98 VREF IN Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LSI. Connected to +5V.
99 AVCC IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI. Connected to Vcc1 (+5V).
100 P97 OUT Common relays driving signal. (Square Waveform : 60Hz)
To turn on and off the shut-off relays (RY1 and RY3). The square waveform voltage is
delivered to the relays (RY1 and RY3) driving circuit.
During cooking
L: GND
H: +5V
16.7 msec.