daver2
10k Member
Not to panic!
On your version they may have removed these capacitors.
What we want then is the voltage:
From the junction of the wiper of potentiometer R335 and resistor R334 to 0V and
From the junction of the wiper of potentiometer R333 and resistor R332 to 0V.
Follow the PCB tracking from the centre pins of the two potentiometers R335 and R333. They should be wired directly to two 3.3 MOhm resistors R334 and R332 respectively. It is the voltage reading from the identified pin of R334 to 0V and R332 to 0V that I require.
The alternative way is to note the position of potentiometer R335 and twiddle it slightly - first one way and then the other - to see what effect it has on the displayed image. It should shift the image to the left and right. However, at the end of the experiment, put the potentiometer back where it was please.
Dave
On your version they may have removed these capacitors.
What we want then is the voltage:
From the junction of the wiper of potentiometer R335 and resistor R334 to 0V and
From the junction of the wiper of potentiometer R333 and resistor R332 to 0V.
Follow the PCB tracking from the centre pins of the two potentiometers R335 and R333. They should be wired directly to two 3.3 MOhm resistors R334 and R332 respectively. It is the voltage reading from the identified pin of R334 to 0V and R332 to 0V that I require.
The alternative way is to note the position of potentiometer R335 and twiddle it slightly - first one way and then the other - to see what effect it has on the displayed image. It should shift the image to the left and right. However, at the end of the experiment, put the potentiometer back where it was please.
Dave