Electrolux GLMV169GSA Service Manual page 29

Pin No. Signal I/O
7 AN3 OUT
8 AN2 IN
9-0 AN-AN0 OUT
-3 P57-P55 OUT
4 CNTR0 OUT
5 P53 OUT
6 P52 OUT
7-8 P5-P50 OUT
9 P47 OUT
20 P46 IN
2 P45 IN
22 P44 IN
23 P43 IN
24 INT0 IN
25 P4 OUT
26 P40 IN
27 RESET IN
28-29 P7-P70 OUT
30 XIN IN
3 XOUT OUT
32 VSS IN
Back light circuit (Light emitting diodes) driving signal.
To input signal which communicates the door open/close information to LSI.
Door close "H" level signal (0V). Door open "L" level signal (-5V).
Terminal not used.
Terminal not used.
Signal to sound buzzer (2.0 kHz).
A: key touch sound.
B: Completion sound.
Terminal not used.
Oven lamp, fan motor and turntable motor driving signal
To turn on and off shut off relay (RY). The square
waveform voltage is delivered to the RY driving
circuit and RY2 control circuit.
Terminal not used.
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay (RY2). The
signals holds "L" level during microwave cooking
and "H" level while not cooking. In other cooking
modes (variable cooking) the signal turns to "H"
level and "L" level in repetition according to the
power level.
Signal coming from touch key.
When either G2 line on key matrix is touched, a corresponding signal out of P20, P2,
P22, P25 and P26 will be input into P46. When no key is touched, the signal is held at "H"
level.
Signal similar to P46.
When either G line on key matrix is touched, a corresponding signal will be input into
P45.
Signal similar to P46.
When either G0 line on key matrix is touched, a corresponding signal will be input into
P44.
Signal similar to P46.
When either G9 line on key matrix is touched, a corresponding signal will be input into
P43.
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
Terminal not used.
Connected to GND through the pull-down resistor R00.
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied.
Terminal not used.
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to XOUT terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
Power source voltage: -5.0V.
29
Description
0.1 sec.
A
2.0 sec.
B
16.7 msec.
During cooking
Maximum
output
70% of
maximum
output
(ON and OFF times for other power level.)
GLMV169GSB
GLMV169GBB
GLMV169GQB
PLMVZ169GCB/C
H : GND
L : -5V
H : GND
L : -5V
H : GND
L : -5V
OFF
H : GND
ON
L : -5V
OFF OFF
H : GND
24 sec.
8 sec.
ON
L : -5V
H : GND
L : -5V
16.7 msec.