K kerryfine Active member Mar 25, 2024 #1 Just finished building the Hydra Delay. I get signal through on bypass, and signal when pot set to fully dry. No signal with Wet. LED lights up. Using 9V center negative adaptor. Attachments IMG_7669.jpeg 488.7 KB · Views: 12 IMG_7670.jpeg 546 KB · Views: 13 IMG_7672.jpeg 507.2 KB · Views: 13 image.jpg 476.8 KB · Views: 13
Just finished building the Hydra Delay. I get signal through on bypass, and signal when pot set to fully dry. No signal with Wet. LED lights up. Using 9V center negative adaptor.
Robert Reverse Engineer Mar 25, 2024 #2 Use a jumper wire to ground the right end of R5 and see if you get a wet signal. It won't be the Hydra algorithm, but it'll determine if the problem is the EEPROM. Upvote 0 Downvote
Use a jumper wire to ground the right end of R5 and see if you get a wet signal. It won't be the Hydra algorithm, but it'll determine if the problem is the EEPROM.
K kerryfine Active member Mar 25, 2024 #3 Robert said: Use a jumper wire to ground the right end of R5 and see if you get a wet signal. It won't be the Hydra algorithm, but it'll determine if the problem is the EEPROM. Click to expand... No signal still Upvote 0 Downvote
Robert said: Use a jumper wire to ground the right end of R5 and see if you get a wet signal. It won't be the Hydra algorithm, but it'll determine if the problem is the EEPROM. Click to expand... No signal still
Robert Reverse Engineer Mar 25, 2024 #4 Can you take a picture as close as possible to the pins on the left side of the FV-1 IC? They almost look like they didn't all get soldered. Upvote 0 Downvote
Can you take a picture as close as possible to the pins on the left side of the FV-1 IC? They almost look like they didn't all get soldered.
C chris.knudson Well-known member Mar 25, 2024 #5 I see flux residue all around the chip, but I agree that it looks like it's just sitting on some of those pads. Upvote 0 Downvote
I see flux residue all around the chip, but I agree that it looks like it's just sitting on some of those pads.
K kerryfine Active member Mar 25, 2024 #6 Robert said: Can you take a picture as close as possible to the pins on the left side of the FV-1 IC? They almost look like they didn't all get soldered. Click to expand... Ahhh you guys are right, that whole side was not soldered! I ordered it as presoldered so i didn’t even think that would be an issue there. Would that be a reason the EEPROM is reading 0 voltage across one side of the chip roo Upvote 0 Downvote
Robert said: Can you take a picture as close as possible to the pins on the left side of the FV-1 IC? They almost look like they didn't all get soldered. Click to expand... Ahhh you guys are right, that whole side was not soldered! I ordered it as presoldered so i didn’t even think that would be an issue there. Would that be a reason the EEPROM is reading 0 voltage across one side of the chip roo
Robert Reverse Engineer Mar 25, 2024 #7 Pins 1 - 4 of the EEPROM are grounded, so that's normal. Shooting you a PM. Upvote 0 Downvote
