Hey All,
I've got the board and chassis put together, just waiting for the Edcors. I obsessively checked component values while on the bench and while on the board, as much as I could of the latter. Checked for cold shoulders as well. Everything looked golden. I got close but incorrect readings while 'Ohming it Out.' At this point I don't have anything attached to the jumper blocks, except for the input signal jumpers, as they are only attached to the RCA jacks which aren't attached to anything. I don't have tubes in, I never installed a Potentiometer and all trim pots are mounted on the 'numbered' side of the board, (opposite side to the sockets.) THAT SAID; I still have alot to learn so maybe I've just put something in backwards. It could always happen. Maybe I needed to bias adjust first? Maybe putting all the trim pots on one one side of the board means some of them are backwards? And I assumed that one lead should be connecting with a ground plane, but maybe that's wrong too? Clearly I have no idea. I am hoping that some of you might...
Can anyone explain the discrepancies?
My Readings are as follows: [Expected values in these blocky sorta parenthesis]
J1
1. 3.4M [>2M]
2. 3.3M [>2M]
3. 1.4M [>200k]
4. 1.3M [>200k]
5. 1.1R [Ground]
6. 1.1R [Ground]
7. 100.1R [100R]
8. 99.6R [100R]
9. Out of bounds (above M-ohm range) [>10M]
10. Out of bounds (above M-ohm range) [>10M]
J2
1. Out of bounds (above M-ohm range) [>10M]
2. Out of bounds (above M-ohm range) [>10M]
3. 1.1R [Ground]
J3
1. Out of bounds (above M-ohm range) [>10M]
2. Out of bounds (above M-ohm range) [>10M]
3. 42.15k [28.3K]
J4
1. Out of bounds (above M-ohm range) [>10M]
2. Out of bounds (above M-ohm range) [>10M]
3. 49.45K [28.3]
J5
1. Out of bounds (above M-ohm range) [>10M]
2. Out of bounds (above M-ohm range) [>10M]
3. 1.2R [Ground]
J6
1. 520K [>10M]
2. 1.2R [Ground]
J7
1. 521K [>10M]
2. 1.1R [Ground]
Also, I am curious if anyone has expected values while *Edcors* are installed. The PA-774 is included, but Edcors are supposed to differ somewhat. It would be nice to know that; one more check before I plug things in...
Let me know if you need more info, and thanks for any help you can offer! In general, thanks for such a great forum. I've learned *loads* here. You folks are pretty great.
Cheers!
-Fishstix