A
arne
Hi
the power supply in 890 C is base on UC3842, then i measure on Vcc
(pin 7) the voltage is rising slowly, is take minutes to rise 16 V,
where the PSU start the output of the power is 19 V and the 2 LED
lights up in few seconds, after that the power supply turn off and the
Voltage on UC3842 pin 7 starts to increase slowly again.
What can be wrong?
the power supply in 890 C is base on UC3842, then i measure on Vcc
(pin 7) the voltage is rising slowly, is take minutes to rise 16 V,
where the PSU start the output of the power is 19 V and the 2 LED
lights up in few seconds, after that the power supply turn off and the
Voltage on UC3842 pin 7 starts to increase slowly again.
What can be wrong?