Electronics > Repair

My current repair job has > 12 PICs

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kolbep:
Yep, you heard me.
I am busy working on repairing a Moving Head stage wash fitting (oby600 wash).
Finally got the schematic, and this thing has a pic micro for almost every motor. WIth two data busses linking everything.

it also had a pic for the 7seg displays and buttons, and another one that looks like the brains of it.

At least I have gotten a break, in that this thing uses a linear powersupply, not switchmode.

But I have to dissasemble most of tge fitting just to check the psu caps.

The fault, if anybody is interested, is that you can send a dmx signal for it to go to position, and it will keep on jerking until it ges there. Sometimes it does not even try to move.
Other motors are jittering the whole time, and the colour wheel keeps on rotating.

Even the builtin demo mode is not working right, so it is not dmx problem

Guess I am going to check the caps, then the interconnects, then the oscillator that is global fforall the micros.

Unldss, on the odd chance somebody has experienced the same problems on a geni oby fitting?

But, over 12 pics. Wow

houdini:
From the title i was expecting pictures.

BravoV:

--- Quote from: houdini on September 24, 2013, 07:05:33 am ---From the title i was expecting pictures.

--- End quote ---

Same here, and realized PIC as mcu, not picture.

Fsck:

--- Quote from: BravoV on September 24, 2013, 07:07:39 am ---
--- Quote from: houdini on September 24, 2013, 07:05:33 am ---From the title i was expecting pictures.

--- End quote ---

Same here, and realized PIC as mcu, not picture.


--- End quote ---

we've all been scammed. though, a pic of 12 PICs would be amusing to see how they're used.

dr_p:

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