21 May
2012
21 May
'12
2:56 p.m.
On 21/05/12 5:20 PM, Jim McCusker wrote:
I have a working Pet 2001-8 that has one annoying issue. When I power up the unit I
typically don't see any characters displayed unless I apply a slight amount of
pressure on the back of the brightness control in the back of the monitor. I suspected
bad solder joints but couldn't see anything wrong. Turning the control brightens the
screen but somehow this control is causing the character display to turn on/off. Any
ideas what might be going on here?
Thanks,
--Jim
Wild guess from an electronics n00b here; perhaps the wiper of the
potentiometer has bad contact with the resistive strip?
--Toby