Electrolux # Service Manual - Page 29

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Electrolux # Service Manual
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.