VHS: no effects

A

Allenrbemis

New member
Hey there everybody11

I've been building pedal pcb rigs going on 6 years now and decided to do a VCR build for a good army buddy of mine, anyway built the first one and no effect what so ever so i was sent a new eeprom, still didn't fix it, I've reflowed everything, including the FV-1 today just to make sure everything was making proper contact and still nothing.......tried switching eeproms which all have been purchased from pedal pcb, so now that I've completed both circuits and have had the same result, I'm at a loss.......what the hell am i doing wrong? also I have brain damage due to my time in Iraq back in 04' so every time i make and audio probe it doesn't work and I'm sure it's me, maybe I'm not understanding the proper way to use it. and at 45.00 a pop i cant afford a 3rd one just to have it fail to work as well. I've scoured the forum and everything that seems to work for everybody else is not working for either of my two rigs. is there any other magic i should try? I thought about asking the wizards at pedal pcb if they could look at them for me but I highly doubt it so haven't asked them. Well i'm going to go play some Star Wars and try to figure it out again myself but i thought Id ask the gurus in here for any idea's or help if possible. have a great day all you cool cats and kittens! P.S. Ive read about jumping pin 5 but i'm not sure to where. Thanks Again.
 
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yes i realize he has the leds soldered on the incorrect side of the pcb... but he has the polarity correct..... I'll pull them and clean the pads... just trying to get both the pcbs working for him... I'm not boxing them.. Just trouble shooting and trying to get them functional..
 
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Removed the three "Effect/On LEDS" on both builds.... One of the builds functions correctly with the leds removed... Looks like the switches he had installed was indeed shorting out the FV-1......ONE will turn on and work correctly with the switch in its upright position and the knob related to that effect is working correctly...The other build is not showing any signs of life.. Looks like i'm gonna have to signal trace it to see if it stops at the Fv-1... May be able to save the first board by desoldering all the toggle switches... I do not have any DPDT ON/ON to solder in and help the guy out to get his build working... If anyone wants to help donate some switches that would be cool.. If I can get it working I will drill a 1590bb for him and box it... give him a little extra leads so he can pull the build out if he wants to paint himself..
 
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swelchy said:
If anyone wants to help donate some switches that would be cool..
Click to expand...

Let me see if I have some, if not I'll order some today.

There must have been something making contact with one of the switches metal housings, an ON/ON/ON wouldn't cause the FV-1 to not function.

The switch would behave normally in the ON and OFF positions, but would either have an Effect with no LED, or LED with No Effect in the center position. (Depending on whether it was Type 1 / Type 2)
 
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Robert said:
Let me see if I have some, if not I'll order some today.

There must have been something making contact with one of the switches metal housings, an ON/ON/ON wouldn't cause the FV-1 to not function.

The switch would behave normally in the ON and OFF positions, but would either have an Effect with no LED, or LED with No Effect in the center position. (Depending on whether it was Type 1 / Type 2)
Click to expand...
At Some point later when I get annoyed by all the people in my house I'll retreat to the dungeon and signal trace the non working one ... :ROFLMAO: .. i get too many people in my house anxiety..
 
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Make sure there's nothing going on here, just to be safe:

1764258807678.png

EDIT: Actually, disregard.... both of those pads go to ground so a solder splash between those pins (although still not good) shouldn't cause any problems.... and no need to call out whoever soldered that IC, I'm sure whoever that was did the absolute best they could and should be praised for such an accomplishment considering the circumstances.

(Yes, I'm pretty sure I soldered it) :ROFLMAO:
 
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Robert said:
Make sure there's nothing going on here, just to be safe:

View attachment 106813

EDIT: Actually, disregard.... both of those pads go to ground so a solder splash between those pins (although still not good) shouldn't cause any problems.... and no need to call out whoever soldered that IC, I'm sure whoever that was did the absolute best they could and should be praised for such an accomplishment considering the circumstances.

(Yes, I'm pretty sure I soldered it) :ROFLMAO:
Click to expand...
Yes... there was a tiny sliver of solder there.. when i reflowed yesterday i picked it out with a hobby knife
 
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