Messages

Here I am!

The MN3101 is arrived! The pedal now works!

I've got some further questions.

1)I haven't got a frequency measurement on my DMM. Using a probe attached to pin 3 of the MN3005 Turning the clock trim I hear that the wiii sound at a certain point disappear and I have reps. Is it the "sweet spot" point? Or are there other ways to calibrate the clock?
2)I socketed c14 (82nf) and c30 (100pf). Do I get big differences using a 100nf instead of the 82nf in c14? And increasing c30 do I get more delay time?

Thanks So Much

Here I am!

I tried soldering the 100R. The check at pin 8 is +-0.6V.
I tried to probe the mn3005 output but there are the same wiiii sound.
By the end of the week I'll receive a genuine mn 3101 ( I asked to the supplier and it has confirmed that is genuine.Let' hope!).
I'll update You soon and thanks again for support!

Thanks So Much Scruffie! I've just soldered a 100R between pin 3 and 8 of the mn3101.
This evening I'll give a test. 

Thanks so much!!!

I never thought that a serious supplier can have fake goods.
I've ordered from another supplier a new mn chip. It will arrive mid week.
I'll try it with it and I'll tell You.

Zombiesonore I really appreciate your offer. I'll try the new chip and I'll tell you if your chip is needed. I live in Italy (Europe). And thanks so much again

Hi!
Following your instruction I replaced c30 and c29 with new cap. r40/41/42 are the right value.
Trimmers seem to work. The delay pot is brand new Alpha so I think the problem isn't in it.
I haven't checked D2.
I make a check and the situation is the same. Unfortunately I have only one MN3101.
Do you suggest me to directly buy another one or the problem can be in some other areas of the circuit? Thanks So!

Here's a picture of the board:



In case of it would helps...

Don't know that there are also a 3205 version.
I bought the pcb directly from Madbean. For the building info I refer to the suggested manual. The Pcb is the blue one, the 2016 version I think.
The 3101 has been bought from Musikding.de site and I don't think it's a fake.. all components came from musikding/banzai so I believe they're genuine..
Are there anything I can do to make it works?

Thanks for Your reply!

I just probe the compander pin7 (OUT1) and I've got signal.

Which parts of the circuits do I check? I'm afraid of PIN8 on both IC3 and IC5. As reference the v must be 0.59, I've got 7.77 on both.

Hi to all!

I'm Mickey and I've got problems with my Aquaboy.
I've built a lot of pedals so I'm not a newbie. I also done a Deluxe Memory Man delay clone so this isn't the first time I build an analog delay.

The problem is that I got no delay! In bypass mode I get dry sound, when the pedal is engaged I'v got dry sound too. If I turn the knobs no results at all.

If I use a probe to test pin 3/4 of IC3 I only listen a "whii" sound.
I built it yesterday and today I've made some measurement.
Here's the results:

IC1
-----
PIN1 - 4.5
PIN2 - 4.5
PIN3 - 4.5
PIN4 - 0
PIN5 - 4.5
PIN6 - 4.5
PIN7 - 4.5
PIN8 - 9

IC2
-----
PIN1 - 0.85
PIN2 - 1.8
PIN3 - 1.8
PIN4 - 0
PIN5 - 1.8
PIN6 - 1.8
PIN7 - 2.8
PIN8 - 1.8
PIN9 - 1.8
PIN10 - 3
PIN11 - 3
PIN12 - 1.8
PIN13 - 9
PIN14 - 1.8
PIN15 - 1.8
PIN16 - 0.08

IC3
-----
PIN1 - 8.9
PIN2 - 3.99
PIN3 - 6.77
PIN4 - 6.77
PIN5 - 0
PIN6 - 3.95
PIN7 - 4.26
PIN8 - 7.77

IC5
-----
PIN1 - 8.33
PIN2 - 3.95
PIN3 - 0
PIN4 - 3.99
PIN5 - 4.09
PIN6 - 4.15
PIN7 - 4.12
PIN8 - 7.77

The delay chip is an Xvive 3005
The Clock is an MN3101
The Compander is a CoolAudio V571D (I also tried a genuine Panasonic NE570, same results)

As You see I have some very wrong Voltage (I marked the most extreme in red)...
Can someone help me please?

Thanks So Much!