Author Topic: More Help Needed!! (DEBUGGING)  (Read 3960 times)

1tczx

More Help Needed!! (DEBUGGING)
« on: December 09, 2009, 05:41:23 AM »


This is driving me crazy...
Connected ground wires to jacks..
now it only makes kindof splatering sound.pot does not clean up..hiaz..triple check all soldering with MM all seems to be fine
Help me guys!!

one question,does a circuit work without power?mines did. battery disconnected but my signal still ended up like a bypassed clean.
reading of voltages at transistor pins looks wierd.
C 9++
B less than 2
E no reading zero 0

HELP
« Last Edit: December 09, 2009, 06:11:43 AM by 1tczx »

1tczx

Re: More Help Needed!! (DEBUGGING)
« Reply #1 on: December 09, 2009, 06:29:44 AM »
all wiring looks fine looking for shorts whole day cant find.. btw transistor is the NP3904, the exact one

1tczx

Re: More Help Needed!! (DEBUGGING)
« Reply #2 on: December 09, 2009, 10:31:30 AM »
LOL haha thanks for everyones help. a whole day of debugging and im finally worked it out. thanks to aron and the bunch of guys who really helped me out these past few days.
the thrill and satisfaction of the FIRST COMPLETED PROJECT NPN BOOST.. :D
haah the problem was this...

this was in position of my 47k resistor. frigging shop keeper gave me this.
btw anyone knows wads this?? as in how to read the colour code? i know how to read but this?

.Mike

Re: More Help Needed!! (DEBUGGING)
« Reply #3 on: December 09, 2009, 12:42:49 PM »
this was in position of my 47k resistor. frigging shop keeper gave me this.
btw anyone knows wads this?? as in how to read the colour code? i know how to read but this?

Here's a six-band resistor code decoder: http://samengstrom.com/nxl/2020/6_band_resistor_color_code_page.en.html

If it is Yellow-Purple-Black-Brown-Brown-Red, you've got a 4.7k resistor. :)

Mike
If you're not doing it for yourself, it's not DIY. ;)

My effects site: Just one more build... | My website: America's Debate.

1tczx

Re: More Help Needed!! (DEBUGGING)
« Reply #4 on: December 09, 2009, 11:16:21 PM »
ahaha thanks mike. the shop gave me a 4.7k instead of a 47k resistor. so thats why my circuit couldnt work.lol.
woah just a small component mistake could result to big difference.
thanks alot guys agn for the help in debugging :D