diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Car Audio (http://www.diyaudio.com/forums/car-audio/)
-   -   memphis 1000d (http://www.diyaudio.com/forums/car-audio/195453-memphis-1000d.html)

timwebb 27th August 2011 07:46 PM

memphis 1000d
 
ok i got this amp i thought i ran into every problem i could. this pic is from the out put gate resistors. every time i put the output driver card in the red and green light comes on.

Perry Babin 27th August 2011 07:54 PM

Which driver board are you referring to?

timwebb 27th August 2011 07:57 PM

1 Attachment(s)
this is at the output gate.
volts/div .2
time/div 2

timwebb 27th August 2011 08:03 PM

1 Attachment(s)
this came from a shop so im sure some stuff was replaced on it.

Perry Babin 27th August 2011 08:10 PM

Are you sure that the scope was set to 0.2v/div?

If you set it to 0.5v/div and touch it to the B+ terminal of the power supply, does the trace go off of the top of the display?

Was there an input signal or not?

You can look at the solder joints and compare it to the other driver board to determine if anything has been replaced.

timwebb 27th August 2011 08:19 PM

yes its set to 0.2 volts/div

If you set it to 0.5v/div and touch it to the B+ terminal of the power supply, does the trace go off of the top of the display? no doesnt move.

Was there an input signal or not? no

the resistors in the picture look like one end was taken up then resolderd to the to of the board.

Perry Babin 27th August 2011 10:32 PM

Is the scope set to DC coupling?

timwebb 27th August 2011 11:41 PM

no.

Perry Babin 27th August 2011 11:46 PM

Unless you have a VERY good reason, ALWAYS leave it set to DC.

Try what I suggested again. What does the trace do.

timwebb 28th August 2011 12:44 AM

yes the trace goes to the top now.


All times are GMT. The time now is 05:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2