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fried traces?

Started by The Incident, January 07, 2010, 02:24:02 PM

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The Incident

I bought a broken dynacomp with the intentions of fixing, and upon further investigation I do believe that the previous owner may have fried the traces on the Q1 part of the board, is there anyway to fix this or to rewire?  sorry, I'm kinda new at all of this pedal work.

petemoore

  Find where the broken trace goes, hopefull 'till you have a solid solder-to point.
  Decide which end will be hardest to solder, perhaps starting at the other end will make it easier to solder the hard to fix end by holding the new little piece of trace jumper in place.
  Solder the jumper in as best you can across the broken spot, test that it connects [and doesn't have any erroneous connection.
Convention creates following, following creates convention.

The Incident

#2
I directly connected the transistor to all of the trace ends, and still nothing..   :icon_cry:

through Q1 I get 9v on the collector, but both base and emitter show nothing. 

The Incident

Is there anyone that can read schems that could possibly tell me what each leg connects to?  I can't read this nonsense at all.. aha.

JKowalski

I bet someone put a wrong polarity high current PSU on the pedal and left it there for a while.

The semiconductor(s) may be fried. You might need to replace them. if you can't get it working by fixing the traces.

Speaking of the traces, what exactly do you mean "fried"? Picture? I'm not totally sure what you are doing with the transistor.

sbm

It's possible that the transistor is toast.  You'll need to use point to point wiring to revive the circuit first if you don't already have a transistor checker.


petemoore

|DIY FAQ| |GEO FAQ| |Debugging Page| |Links| |Schematics| |Wiki| |Layouts Gallery| |STORE|
|AMPAGE| |GEOFEX| |AMZ|
  These pages, links etc., relate the necessary information you need.
  Get ready to read-up ! It may seem like a steep learning curve until you begin to climb the hill.
  It'll take more time than a cup of coffee, and almost certainly require sleep.
  Necessity, curiousity, or just not wanting to let anything get over on ya is the mother of motivation though, make time to keep your chin up.
  You can probably get through a debug by developing schematic reading skills and ability to follow the debugging page instructions.
  You're efforts will be best served when you have become familiar with applying a DMM to perform tests on the circuit.
  That will help you to provide information in questions formed in a way which allows valid answers.
 
Convention creates following, following creates convention.