Digitech - PDS 1002 Delay [schematic]
- theehman
- Diode Debunker
Information
Do you mean the PDS1002?
Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
- Alex Frias
- Resistor Ronker
I have a non working unit and I would be very happy to see a schematic.
The direct sound is working OK, but the delayed signal and the hold status LED does not light on. It can be a number of things, but a scheme will be very helpfull. One thing I've changed was the memory RAM chip.
I give a look to search engines on the net from time to time with no success...
The Digitech never answer my emails about this matter.
The direct sound is working OK, but the delayed signal and the hold status LED does not light on. It can be a number of things, but a scheme will be very helpfull. One thing I've changed was the memory RAM chip.
I give a look to search engines on the net from time to time with no success...
The Digitech never answer my emails about this matter.
- theehman
- Diode Debunker
Information
If you guys needs the PDS1002 schematic LMK and I'll post it. The first poster wrote "PS1002" so I need to confirm which one is needed.Alex Frias wrote:I have a non working unit and I would be very happy to see a schematic.
The direct sound is working OK, but the delayed signal and the hold status LED does not light on. It can be a number of things, but a scheme will be very helpfull. One thing I've changed was the memory RAM chip.
I give a look to search engines on the net from time to time with no success...
The Digitech never answer my emails about this matter.
Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
- Alex Frias
- Resistor Ronker
Well, I just speak for myself:
Digitech PDS 1002, Digital Delay with Hold and max 2 seconds of delay time.
Digitech PDS 1002, Digital Delay with Hold and max 2 seconds of delay time.
- theehman
- Diode Debunker
Information
Here you go. If you figure it out, please post. I've got one w/ the same problem.Alex Frias wrote:Well, I just speak for myself:
Digitech PDS 1002, Digital Delay with Hold and max 2 seconds of delay time.
- Attachments
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- PDS1002.pdf
- (415.43 KiB) Downloaded 1875 times
Ron Neely II
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
Electro-Harmonix info: http://electroharmonix.vintageusaguitars.com
Home of RonSound effects: http://www.ronsound.com
fx schematics and repairs
- Alex Frias
- Resistor Ronker
Be sure, I will so!
Thanks a lot for that.
Thanks a lot for that.
Information
I have one that I have been using happily since around 1990! I modded it to change the delay pot to an expression pedal.
Only thing lacking is a low-fi / analog mod for this thing.
Only thing lacking is a low-fi / analog mod for this thing.
- Alex Frias
- Resistor Ronker
Well, If it goes more low fidelity than it is originally, I think you will get a very trashy delayed sound. When the unit is on max delay time, the signal is already suffering of severe degradation. And as this unit uses a 571/570 type of com/exp plus the mencioned lo fi freq response, aliasing and clock noise, what we recognise as analog delay sound is there. It is a very strong point that moves me to get it fixed.madbean wrote:I have one that I have been using happily since around 1990! I modded it to change the delay pot to an expression pedal.
Only thing lacking is a low-fi / analog mod for this thing.
- Alex Frias
- Resistor Ronker
Any chance you could inform wich one was substued?
- Alex Frias
- Resistor Ronker
As I am in a busy time this week I've found not a lot of time to investigate the unit. On the other hand, I observed the schem and I figered out some possible problems. One 4007 could be one...
Hmm, sort of the same problem here too. No wet sound, but my LEDs do light up. Cleaned the pots and reseated all ICs, to no avail. I'll have to check out the schematic. If there's a common problem on these pedals please share.The dry signal is fine, but the wet signal is non-existant
and the Infinite Repeat function and LED arent working
- Steven_M
- Resistor Ronker
Yep. I am in the same boat. Led's light up, dry signal sounds fine, but no wet signal. Got it for $25 so I cant complain.klaus83 wrote:Hmm, sort of the same problem here too. No wet sound, but my LEDs do light up. Cleaned the pots and reseated all ICs, to no avail. I'll have to check out the schematic. If there's a common problem on these pedals please share.The dry signal is fine, but the wet signal is non-existant
and the Infinite Repeat function and LED arent working
- Alex Frias
- Resistor Ronker
I tried to replace every soqueted IC in this thing and nothing changed in a positive way...so...
Maybe next weekend a friend will help me with his oscilloscope. Let´s see, if I find somthing I will share it, be sure!
Maybe next weekend a friend will help me with his oscilloscope. Let´s see, if I find somthing I will share it, be sure!