Hi,
Does turning the brightness down help alleviate the problem at all?
If not, it sounds like an analog board problem.
According to The Dead Mac Scrolls, it could be resistors R20 (100KOHM, 1/2 watt, 5%) and/or R21 (1MOHM, 1/2 watt, 5%).
It also suggests adjusting variable resistor R24 (the Cut-Off control) to see if you can compensate. If not, it looks like some kind of component lever repair is in order.
I have a spare analog board/power supply that I could give you for the cost of shipping, if that would help speed things up. Then it would be a simple board swap procedure.
c
Does turning the brightness down help alleviate the problem at all?
If not, it sounds like an analog board problem.
According to The Dead Mac Scrolls, it could be resistors R20 (100KOHM, 1/2 watt, 5%) and/or R21 (1MOHM, 1/2 watt, 5%).
It also suggests adjusting variable resistor R24 (the Cut-Off control) to see if you can compensate. If not, it looks like some kind of component lever repair is in order.
I have a spare analog board/power supply that I could give you for the cost of shipping, if that would help speed things up. Then it would be a simple board swap procedure.
c