Sustain pedal doesn't work with release button

[Mr Phono]

The sustain pedal only works with Hold, not with Release engaged. I hope I'm doing something wrong here and that it's not broken. I've tried three different sustain pedals but the same problem occurs with all of them.
 
I've made a video so you can see what is happening:

[HockeBocke]

If you have not already, se page 15 and 43 in the Manual 1.4   

Cheers !

[Mr Phono]

The most recent manual on the Sequential page is 1.3. Where can I find 1.4?

[HockeBocke]

The most recent manual on the Sequential page is 1.3. Where can I find 1.4?

Aaah ...  The 1.4 Manual I have maybe is for the Prophet-10 
but the 1.3 manual is almost the same ....
Download and look at page 15 and 43   

https://davesmith.wpenginepowered.com/wp-content/uploads/2021/02/Prophet-5-Users-Guide-1.3.pdf


Cheers !

[Mr Phono]

I've read the manual and I know how sustain mode is supposed to work but as you can see in the video the Prophet-5 is not responding to the sustain pedal when it's in sustain mode. It is working when I switch it to "hold" so the problem is probably not the sustain pedal.

[chysn]

I've read the manual and I know how sustain mode is supposed to work but as you can see in the video the Prophet-5 is not responding to the sustain pedal when it's in sustain mode. It is working when I switch it to "hold" so the problem is probably not the sustain pedal.

Everything your video shows is correct behavior. When your Prophet 5's Release/Sustain global is REL (the original Prophet 5 behavior), there is no visual feedback of any kind. When the Release/Hold button light is on, the envelope naturally moves through its release stage. When the light is off, the envelope will skip the Release stage completely UNLESS the pedal is held down. When the light is on in REL, the pedal does nothing.

So try this:

(1) Enable REL in the Release/Sustain Global
(2) Find a sound with a long release, or just crank the Release knob all the way up.
(3) Turn off the Release/Hold light
(4) Play a note without sustain pedal down. Hear how the sound just cuts off?
(5) Play a note with sustain pedal down. Hear how the release stage now works?
(6) Turn on the Release/Hold light. The behavior is now the same as when the pedal is down, and the pedal does exactly nothing.

I personally prefer the more modern sustain pedal behavior of "pedal holds the sustain level and the sound moves to the release stage when the pedal is lifted." So I just leave my Release/Sustain setting at HLD. It's more piano-like, I think.

[HockeBocke]

I've read the manual and I know how sustain mode is supposed to work but as you can see in the video the Prophet-5 is not responding to the sustain pedal when it's in sustain mode. It is working when I switch it to "hold" so the problem is probably not the sustain pedal.

I don't think you do .... In one of the mode the led button blink when pressing sustain pedal, in the
other mode it does not ...
And you have to listen to what happens when turning the Release knob in Amp section. ( And the Decay, Sustian knobs )

For example, if you have a sound with a short "tail" in HOLD mode and press the pedal, the sound sustains
normal as a "piano" if the sustain knob in AMP section is at zero. Turning the sustain knob clockwise
extends the sustain to infinity when pedal is pressed.

With that said I can say that I don't 100% understand exactly what happens either 
It depends on the sound you use and the settings you have in AMP section ...  Explore, trial and error 

P.S.  I don't even use sustain pedal with my P-10, only Expession pedal 

Cheers !

[Mr Phono]

Thank you guys! It works. I feel a bit stupid. I just assumed it didn’t work because the light didn’t go on when I pressed the pedal...

[HockeBocke]

Yeah, it's a bit confusing ...   
No need to feel "stoopid"   

Cheers !