Tenebrion
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Join date: Dec 2007
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#1
I bought this Boss pedal in 2009 SD1 love the yellow thing, but now when I turned it on it drops volume idk what to do, I think I dont have the warranty anymore so pls help me how to fix it. if there is a way to do so.
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Lavatain
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#3
Does the battery need changing? Try that. If you use a 9V DC adaptor to power it, try not using it, or try another one.
fastlanestoner
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Join date: Sep 2007
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#4
If it's not the battery it could be a cap that is draining as soon as it gets voltage. Probably an easy fix, but try the battery thing first
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KG6_Steven
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#5
Could be any number of things -all equally tough to troubleshoot over the internet.

It could be:

The switch
Failing IC
Weak transistor
Faulty wiring/jack
???
Tenebrion
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Join date: Dec 2007
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#6
well im not a using a battery Im using PSU but I was using before with the 9v battery and its sounded equally weak, thats why I bought a daisy chain and BOSS PSU it worked fine like 2 days and then weak sound again
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Offworld92
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#7
Is it a black label or a silver label SD-1?

Do you have any other pedals in the same daisy chain, and do they work fine?
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Tenebrion
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#8
Quote by Offworld92
Is it a black label or a silver label SD-1?

Do you have any other pedals in the same daisy chain, and do they work fine?


yup I have noise reducer in the same but since that only "eliminates" noise I guess its working where the serial number is?? mine is silver if that is what you meant
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Offworld92
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#9
That's all good then.

You've definitely narrowed it down the the pedal? Your signal is fine straight to amp? Tried other cables?
Spin 'round carousel when your horse isn't screwed in.

My band:
Fractured Instinct
(For fans of Death/Groove/Prog Metal)

Ibanez RGA42E
Ibanez S420
LTD H-301
Ibanez RG520
Peavey Predator USA
Douglas Grendel 725
Line 6 Pod HD500X
Tenebrion
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Join date: Dec 2007
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#10
Quote by Offworld92
That's all good then.

You've definitely narrowed it down the the pedal? Your signal is fine straight to amp? Tried other cables?

yup straight to the amp, I dont use the FX loop and yes I have used other cables same result
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TheRiffGod
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#11
Basics with the SD1 are:

Volume full,
Tone Central,
Drive to taste,
Then tweak tone to taste.

Have you openned it up, to see if there are any internal issues? (remember the piece of insulating plastic when putting it back together)

How are your soldering skills? It might be worth investing a couple of pennies and getting:

A new IC (JRC4558D are stock, but a BB OPA2134 gives best sound IMO, or maybe look at solder stacking them?)
Some higher quality caps,
Maybe change some of the stock diodes to LEDs (these give a much 'bigger' sound than any other clipping diode, and are so much louder. I would start here. they have a really warm sound too).

Monte Allums does absolutely epic, and relatively simple, mods for pedals. The sets are cheap too!! it is worth a look at his website.

patch cables can damage sound in the chain as well.

Without sounding as if i am mocking you, are you sure the guitar is turned up full?

Um, if all else fails, try ebay or similar for a second hand pedal. SD1, Tubescreamers and such-like sell at good prices quite regularly. you could grab yourself a bargain.

If you are just using it as a boost though, as you have a mega load of distortion in your 6262 (in the form of beautiful tubey gain), you should consider making a boost from scratch. they are dead simple to construct. i have seen a DIY boost in a business card box before! they also give you a great insight into guitar-type elctronics.

anyways, i hope i have helped in some way good luck bro

ps. sweet amp. i LOVE the Bu. Nearly got that one, but my 6505 was cheaper haha.
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Last edited by TheRiffGod at Jan 28, 2013,
Tenebrion
Registered User
Join date: Dec 2007
1,450 IQ
#12
Quote by TheRiffGod
Basics with the SD1 are:

Volume full,
Tone Central,
Drive to taste,
Then tweak tone to taste.

Have you openned it up, to see if there are any internal issues? (remember the piece of insulating plastic when putting it back together)

How are your soldering skills? It might be worth investing a couple of pennies and getting:

A new IC (JRC4558D are stock, but a BB OPA2134 gives best sound IMO, or maybe look at solder stacking them?)
Some higher quality caps,
Maybe change some of the stock diodes to LEDs (these give a much 'bigger' sound than any other clipping diode, and are so much louder. I would start here. they have a really warm sound too).

Monte Allums does absolutely epic, and relatively simple, mods for pedals. The sets are cheap too!! it is worth a look at his website.

patch cables can damage sound in the chain as well.

Without sounding as if i am mocking you, are you sure the guitar is turned up full?

Um, if all else fails, try ebay or similar for a second hand pedal. SD1, Tubescreamers and such-like sell at good prices quite regularly. you could grab yourself a bargain.

If you are just using it as a boost though, as you have a mega load of distortion in your 6262 (in the form of beautiful tubey gain), you should consider making a boost from scratch. they are dead simple to construct. i have seen a DIY boost in a business card box before! they also give you a great insight into guitar-type elctronics.

anyways, i hope i have helped in some way good luck bro

ps. sweet amp. i LOVE the Bu. Nearly got that one, but my 6505 was cheaper haha.

s far my soldering skills they got really good lately, and thank you for all the info now I know where to start thank you very much. thank you all for your help. would you give me a recommendation on chich kit to buy for the SD1??
Bugera 6262
Squier Showmaster
Richman Custom
Starfire 7
Ibanez EX
Agile Interceptor 725
Behringer GX212 (now works as head)
JOYO JF 01
Kimaxe PJ Bass
Last edited by Tenebrion at Jan 29, 2013,
TheRiffGod
Somewhere up with Budda?
Join date: Apr 2012
527 IQ
#13
I have a Peavey 6505, so I am rather close to your amp's tone haha.

My advice would be get:

http://www.monteallums.com/pedal_mods.html#bosssd1GT

http://www.monteallums.com/pedal_mods.html#CA (DIP-to-Dual stacker)

and http://compare.ebay.co.uk/like/180774562870?var=lv&ltyp=AllFixedPriceItemTypes&var=sbar&cbt=y

it is worth paying the price for 10, they are brilliant little ICs and it is great to have a backup unit, or the possibility to drop one into any number of other pedals you own.

'stacking' ICs will give you much more headroom, and much lower noise in the signal. the JRC4558DD is the standard for upgrading TS#/SD1 type circuits as they have a similar sound to the stock IC, but better clarity, dynamic response and lower noise. the BB OPA2134A, that comes with Monte's kit, is arguably the best IC out there for these purposes. It has, in mine, and many others' opinions, the best sound in a musical sense, greatest clarity, lowest noise, and really good feel. stacking the two makes for a killer sound. the sockets provided with the kit are cool for being able to swap components at will, without even getting out the iron, but a BB and 4558DD shouldnt be far from perfect.

Also I will suggest putting LEDs in there too, as they really open up the pedal and make it loud, but only put them in the clipping diodes' places otherwise the it gets too big and fails big time. Monte puts in a switch for asymmetrical/symmetrical clipping. It might be worth paralleling LEDs with other diodes, or straight up replacing them. OR BOTH! it's up to you, but I would keep LEDs for a boost, and any other diode for overdrive/distortion.

the great thing about pedal mods is that there are no rules. you can do as much or little as you like to the circuitry, resulting in a truly unique product.

really hope I helped with them, mate.

anything else you want me to elaborate on?
Looking for any of your spare 12" speakers or electronic components (valves, transformers, anything!) and a Peavey Wolfgang USA. Message me!

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Tenebrion
Registered User
Join date: Dec 2007
1,450 IQ
#14
Quote by TheRiffGod
I have a Peavey 6505, so I am rather close to your amp's tone haha.

My advice would be get:

http://www.monteallums.com/pedal_mods.html#bosssd1GT

http://www.monteallums.com/pedal_mods.html#CA (DIP-to-Dual stacker)

and http://compare.ebay.co.uk/like/180774562870?var=lv&ltyp=AllFixedPriceItemTypes&var=sbar&cbt=y

it is worth paying the price for 10, they are brilliant little ICs and it is great to have a backup unit, or the possibility to drop one into any number of other pedals you own.

'stacking' ICs will give you much more headroom, and much lower noise in the signal. the JRC4558DD is the standard for upgrading TS#/SD1 type circuits as they have a similar sound to the stock IC, but better clarity, dynamic response and lower noise. the BB OPA2134A, that comes with Monte's kit, is arguably the best IC out there for these purposes. It has, in mine, and many others' opinions, the best sound in a musical sense, greatest clarity, lowest noise, and really good feel. stacking the two makes for a killer sound. the sockets provided with the kit are cool for being able to swap components at will, without even getting out the iron, but a BB and 4558DD shouldnt be far from perfect.

Also I will suggest putting LEDs in there too, as they really open up the pedal and make it loud, but only put them in the clipping diodes' places otherwise the it gets too big and fails big time. Monte puts in a switch for asymmetrical/symmetrical clipping. It might be worth paralleling LEDs with other diodes, or straight up replacing them. OR BOTH! it's up to you, but I would keep LEDs for a boost, and any other diode for overdrive/distortion.

the great thing about pedal mods is that there are no rules. you can do as much or little as you like to the circuitry, resulting in a truly unique product.

really hope I helped with them, mate.

anything else you want me to elaborate on?

No, I think Im fine thank you very much you had help me a lot with this info thank you again I will add you as a friend then
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Join date: Oct 2009
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#16
You haven't said what settings you have on the pedal. From what you've said, for all we know, you have the volume turned right down.
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#17
Quote by Tenebrion
thank you very much you had help me a lot with this info thank you again I will add you as a friend then


no worries bro,

feel free to hit me up if you need me
Looking for any of your spare 12" speakers or electronic components (valves, transformers, anything!) and a Peavey Wolfgang USA. Message me!

I want your broken/unwanted gear, UK only. Message me!