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 Forum index » DIY Hardware and Software » Circuit Bending
Problems with Boss DS-1 Modification
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Alski



Joined: Feb 26, 2015
Posts: 1
Location: Montana, USA

PostPosted: Thu Feb 26, 2015 9:09 am    Post subject: Problems with Boss DS-1 Modification
Subject description: Lifted pads and possibly damaged IC chip
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My apologies if this is in the wrong place, seems like the people on this section would know what to do in this situation. I am brand new to circuit bending and electronics work in general, really starting to realize how much of an art it is to do things right.

The first project I decided to tackle before messing with the board on a Roland TR-505 drum machine I have (I will need to be much better with my soldering) is the Keeley Mod for the Boss DS-1. Well documented so it seems like a good start. ANYWAYS...

I started desoldering (Using a chisel tip, 40 watt iron and a desoldering pump) and was running into constant problems using the pump. I'll be getting a wick soon, but in the process, a few pads have lifted, exposing copper (but it doesn't look like it exposed the board itself). Is there an easy way of fixing this? I've heard scraping away the guard on a little bit of the tracing and soldering to that is a standard fix.

Also, one thing I have heard is to always be careful around the IC chip. I haven't touched it with my iron, just removed a few caps and resistors nearby. I kept touching the IC chip to see if it was getting warm, and at a point it was (but not hot, just a light warmth). How do you guys know if something like that is fried until you are totally done with your modifications?

Thanks


IMG_0131.jpg
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(poor image quality, but you can see the exposed copper where a few of the pads were)
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scorpiistar



Joined: Feb 28, 2007
Posts: 9
Location: australia

PostPosted: Tue Mar 03, 2015 5:25 am    Post subject: Reply with quote  Mark this post and the followings unread

i repair tracks with the lead cut off of a resistor........shape it with needle nose pliers......scrape away the masking on the pcb and solder it in place


if im worried about an ic i lay the board on a damp sponge

make sure everything is clean so you can get in and out

let the ic cool down....solder a couple of pins at a time
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Just Dave



Joined: Mar 08, 2015
Posts: 6
Location: Ireland

PostPosted: Mon Mar 09, 2015 3:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

I've modded a bunch of DS-1's, it's got some amazing sounds buried in it!

Anyways, if I mess up a solder point, just take a small piece of insulated wire, and follow the trace up to the next point.
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