capacitor question

hungdaddy01 · Post by **hungdaddy01** » Sun Jan 20, 2008 1:02 pm

I'm losing hope, motivation, and my sanity. I just completely started the left and right boards from scratch and finished wiring everything up for the second time. My screen is lighting up (volume and brightness buttons working perfectly) and I'm getting the proper voltages to the nes and video amp. However, there is no video or sound. Could it be?

1. the IC from the controller is bad.
2. the 1 Uf capacitor on the pc board that I used is non-polarized (I saw someone else asked if this was a problem, but there was not a definitive answer that I saw posted.)

If you help me get this thing working I would be very grateful.

Kurt_ · Post by **Kurt_** » Sun Jan 20, 2008 1:14 pm

Heh. That's not a capacitor problem I don't think.

If anything, I'd say you forgot to connect the grounds of your system and screen.

arfink · Post by **arfink** » Sun Jan 27, 2008 9:46 pm

Yes, in my experience the ground is everything, if it's not good enough you won't get anything.

codeman · Post by **codeman** » Fri Mar 14, 2008 11:14 am

What are you using for the video amp? The one from the book? If so try removing the resistor that goes from the collector of the transistor to power.