boss rocker distortion pd1 schematic????

Started by pinkjimiphoton, September 23, 2012, 05:24:08 PM

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pinkjimiphoton

hey guys,
anyone got a schematic for this beast?
i got a pair yesterday, so yes, i can compare parts... but it appears to have some weird-ass voltage converter thing that takes 2 c batteries and juices it up to 10v or something.

i can still read the roasted transistor, but i don't know enough yet to be able to identify what to maybe replace it with.

i MAY just convert it to run on a 9v, but at nearly 500 on ebay, i figure i should probably fix it right. the one that works is awesome!!
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pinkjimiphoton

the roasted transitor is a 2sc817ay from what i can find... doing a bit of a search, i found an nte equivalent.
but it's really i think just a pnp...do ya think i can sub a 3906 or something?

this is a data sheet for the nte equivalent.

http://www.nteinc.com/specs/200to299/pdf/nte289a.pdf

some of the crap on the board is roasted, hoping the dc-dc convertor thing survived somehow..
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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
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pinkjimiphoton

workin on the components, but came across a resistor i've never ever seen before.. it's banded blue grey gold and gold!  WTF???!?!?!?!
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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

Govmnt_Lacky

According to my handy dandy resistor calculator, that is equal to 6.8 ohms 5%  ;D
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pinkjimiphoton

grrrrrooooovy!!! thanks! i got that, but there was about 40 zeros on the end of it. ;)

hoping i can revive this poor beast. it's power supply daughterboard got a little crispy  :icon_eek:
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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

pinkjimiphoton

here's a couple pics, i am no good at this stuff, but it shows the parts that are cooked...

gonna try and fix it...wish me luck!! ;)












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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

pinkjimiphoton

awww, shoot, labeled the diode backwards...first pic, where it says + is actually the band/cathode..



  • SUPPORTER
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

Govmnt_Lacky

That black brick has really got me perplexed  ???

Can't find anything on it  >:(
A Veteran is someone who, at one point in his or her life, wrote a blank check made payable to The United States of America
for an amount of 'up to and including my life.'

pinkjimiphoton

it's a dc-dc convertor, takes two c batteries 3 volt output, and steps it up to 10v 150ma!

yah, hen's tooth...that's why i hope to get a schematic bro, to see if there's a way to bypass it.

hoping the cheap transistor was there to protect it. there's 3 leads going into it...will have to take some voltage readings from the good one, i guess.
  • SUPPORTER
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

petey twofinger

some one gave me a busted one of those , i think , unless its a boss wah that uses c-cells . i have it here , somewhere .... hmmmm , did i throw it out , crap , i think i did ....
im learning , we'll thats what i keep telling myself

Fender3D

#10
Mine has a 2SA1015 then its central pin is Collector

BTW
get rid of that DC-DC **it...
Get a 7810 or a 7809 + sil. diode on GND pin and use a 12V DC adaptor...
"NOT FLAMMABLE" is not a challenge

pinkjimiphoton

bside2234 posted this on the other forum...



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"try whacking the bejesus outta it and see if it works again"....
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pinkjimiphoton

Quote from: Fender3D on September 25, 2012, 07:14:45 AM
Mine has a 2SA1015 then its central pin is Collector

BTW
get rid of that DC-DC **it...
Get a 7810 or a 7809 + sil. diode on GND pin and use a 12V DC adaptor...

thanks federico!!

i'm a dumb newbe...could ya walk me thru that just a little more please?
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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

Fender3D

Get a small vero board and place these few parts


Electros 100 to 470uF 25V, films 100nF
Diodes 4007 or similar.
Unwire the battery box and put it away, unscrew and unwire the stock DC-DC board:
RED wire from DC jack goes to RED on my schem.
BLUE wire from DC jack and Black from main PCB go to my schem. GND
ORANGE wire from PCB goes to ORANGE in my schem.
get rid of the other wires going to DC-DC board.
You should be done...
"NOT FLAMMABLE" is not a challenge

pinkjimiphoton

federico,
thank you bro,

YOU FREEKIN ROCK MAN!!!!! AWESOME, THANK YOU SO SO MUCH!!!!
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"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr

pinkjimiphoton

check this out:

http://www.taydaelectronics.com/datasheets/A-915.pdf

if i'm reading right, you could mod the pd1 with one of these, and just use a normal wart. add a 7810, done deal.
  • SUPPORTER
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr