Schematic Error on PPDB TV section

DonEduardo

All the resistors are marked 'K' ohms. From what I have seen elsewhere on other Propeller TV circuits the other resistors should only be 560 and 270 ohms.

Is that correct?

Toby Seckshund

I havn't got a cct diagram to hand but, yes the video bits are 1.1K (1K1), 560 Ohms and 270 Ohms (ish, I think). VGA are 470 Ohms and 240 Ohms.

The multiplier can be used as the decimal spot, as above, if that is what you have seen.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Style and grace : Nil point

hover1

Boy! What a catch! I never noticed that before. I have a hard copy (11-29-06) that has the correct values. 1.1K, 560, 270, 560.(Sorry that was the·Demo Board) Yes 1.1K, 560, 270, and 560 ohms·are the correct values.
Jim

DonEduardo said...
All the resistors are marked 'K' ohms. From what I have seen elsewhere on other Propeller TV circuits the other resistors should only be 560 and 270 ohms.

Is that correct?

Post Edited (hover1) : 7/26/2009 1:41:08 AM GMT

Chris Savage

Hello everyone,

This issue was corrected yesterday and the revised schematic was replaced on our website at that time. If you download a new copy you will have the revised schematic. Take care.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Chris Savage
Parallax Engineering

DonEduardo

Hey, cool, thanks Chris.

I wasn't trying to be nit-picky or anything. After I get something working on the PPDB, I then try to order the exact same parts to minimize problems in the copied circuit (although I always manage to solder something up incorrectly and it takes me hours to figure out what).

I was about to order those wrong values and then happened to check another document and saw the conflict. Just wanted to make sure I ordered the correct ones (ordered 0603 SMT resistors and then hand soldered! What torture/fun. Although I think I got the hang of it now).