can anyone help???eq215x no power

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gixerboy
Posts: 167
Joined: Thu Feb 08, 2007 1:06 am

can anyone help???eq215x no power

Post by gixerboy »

been a while but im back :D
just bought a eq215x of flebay and lo and behold it wont power up.
opened it up to see if anything jumps out at me but not much at all catches my eye.
checked the voltage going through and its reaching the internal fuse and it has not blown.
please please all help appreciated.
its nice to be important , but its more important to be nice
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Eric D
Short Bus Driver
Posts: 4255
Joined: Sat Dec 30, 2006 8:50 am

Re: can anyone help???eq215x no power

Post by Eric D »

On the board near the input power connector should be an SG2525 PWM controller. It has two output pins which drive a pair of MOSFETs, and these are connected to the small transformer on the board. You should measure the output voltage in both AC and DC of the output pins and post the numbers here.

I have found these to be bad on EQ215s in the past.

Here is a link to figure out what the pins are...

http://www.datasheetdir.com/SG2525+PWM-Controllers
Got "schooled" by member shawn k on May 10th, 2011...
No longer really "in tune" with the audio industry, and probably have not been for some time.
Hands down the forum's most ignorant member...
Don't even know what Ohm's law is...
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