R
Raphael Assenat
Guest
Hi,
I recently picked up a dead PC monitor. It is a KDS 17 inch monitor,
model VS-7i. It had a shorted capacitor which fried the resistor R312.
Unfortunately, I cannot read the resistor value. I have tried
different values, and it turned out that a ~2.7Ohms value worked fine
but only when the monitor is run at high refresh rates (>70hz). At lower
frequencies, the vertical deflection goes back up at the bottom of the
screen, like it's missing power.
I am not sure exactly what this resistor does(maybe current limiting?).
It is part of the low voltage power supply. It is connected after
the rectifier which is connected to the -12V winding of the transformer.
Does anybody know what is the real value of this resistor? Of course I
could try lower values, but I think knowing the real value would be
helpful.
Regards
Raphael Assenat
I recently picked up a dead PC monitor. It is a KDS 17 inch monitor,
model VS-7i. It had a shorted capacitor which fried the resistor R312.
Unfortunately, I cannot read the resistor value. I have tried
different values, and it turned out that a ~2.7Ohms value worked fine
but only when the monitor is run at high refresh rates (>70hz). At lower
frequencies, the vertical deflection goes back up at the bottom of the
screen, like it's missing power.
I am not sure exactly what this resistor does(maybe current limiting?).
It is part of the low voltage power supply. It is connected after
the rectifier which is connected to the -12V winding of the transformer.
Does anybody know what is the real value of this resistor? Of course I
could try lower values, but I think knowing the real value would be
helpful.
Regards
Raphael Assenat