Author Topic: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED  (Read 40257 times)

johnk

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #60 on: June 18, 2018, 11:14:55 PM »
that would be great.

so far i've just measured voltages. i plan to put it on a scope & a signal generator tomorrow.

kaeisy

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #61 on: June 19, 2018, 11:02:25 AM »
I fear I fried my dc-dc-converter  :'(. drog_trog, where did you source these?
Sorry, no voltage measuring at the moment...

johnk

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #62 on: June 19, 2018, 11:42:33 AM »
Bummer! i hope you can get it sorted.

chorusjunkie

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #63 on: July 19, 2018, 05:16:31 PM »
Bummer! i hope you can get it sorted.

Did you find out what went wrong johnk?

johnk

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #64 on: July 19, 2018, 05:47:15 PM »
nope. still no chorus effect.

chorusjunkie

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #65 on: July 22, 2018, 05:41:08 PM »
nope. still no chorus effect.

Maybe a defective BBD?

johnk

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #66 on: July 22, 2018, 06:08:39 PM »
maybe, but i bought it from Smallbear and they're always reliable.

drog_trog

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #67 on: July 23, 2018, 03:27:24 AM »
hi John, sorry been real busy, if your willing to pay postage both ways I can take a look at it if you send it me.

johnk

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #68 on: July 23, 2018, 08:58:46 AM »
thanks for the offer. i'll probably do that since it's just sitting here collecting dust.

drog_trog

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #69 on: July 25, 2018, 01:59:10 AM »
Update: I have ordered 10 more PCB's for the TDA1022 chip, if you want one please PM me.

$15 plus $4.50 worldwide postage

Free UK post

skumberg

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #70 on: August 26, 2018, 11:31:59 AM »
Looking at the first post in the link, is this the correct way to do the depth mod?
https://www.diystompboxes.com/smfforum/index.php?topic=117279.0

Wouldn't this change the voltage since the depth pot 8k2 resistor forms a voltage divider from 14V+? To keep the ratio I guess 8k2 should be halfed as well but I'm not sure how this affects the rest of the Circuit.

If I wanted an effect level pot, should I just wire it in series with the 22k(R57 in your schematic)? To control the wet level.

/Nicklas

drog_trog

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #71 on: August 27, 2018, 02:39:36 PM »
Yes, i have done a bit of experimenting and managed to try this mod exactly as shown in that post and it's really cool. So when the mod is done and you just want to use the intensity knob as original just leave the new depth pot turned fully CW.
As to the other part of your question, do you mean a blend pot to mix wet/dry?


skyled

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #72 on: August 27, 2018, 03:15:55 PM »
Just wanted to say that I got my pcb today. Looks very good and I can't wait to get started on it. I will also be doing the depth mod for sure.

skumberg

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #73 on: August 28, 2018, 05:18:49 AM »
Thanks, I'll use that depth pot mod then. Yes I was thinking of a wet blend. I'm not sure how useful it would be though. I did it on my ce2 but actually usually set it in the same position.

drog_trog

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Re: BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED
« Reply #74 on: August 28, 2018, 06:10:35 AM »
ye, i seem to recall it being used in the CS9 that another member did (Agua Net Chorus) i think it was a C250k pot. Maybe its worth some experimenting, if you wanted to riff using an effect and just wanted a hint of chorus on top that would be good.