TP22 reasing 4.65 volts?

[adamc]

Hey guys, it is my first time building the kit, but it seems that I've done something wrong. When I do a voltage test on TP22, i'm seeing 4.67, instead of the 3.3 expected. Any idea what I might be doing wrong? (ignore the photo's reading, it read 4.9 when i didn't have the dial all the way on to resistance mode).

[jye1]

The way by which you measured voltage is incorrect. Usually voltage is measured by placing negative pen on GND and positive pen on the point of interest.

[adamc]

Haha! Thanks, As you can tell, I'm new to a lot of this.

Once I measured it the right way, it came up close.

My problem now - I get the screen to come on, but no trace.

Av- 0.65

Av+ 4.9

3.3 3.3

5 4.98

V1 4.9

V2 1.3-3.3

Any idea what I'm doing wrong?

[jye1]

There was something wrong with AV-. You need to correct that first. Please see this post viewtopic.php?f=18&t=455 .