Orion Hcca 5000 Blow

[mgm2000ro]

Anyone have it ?
Orion did a horrible job on this amp and I need the schematic to be able to fix it .
I've emailed Orion for a schematic but so far they haven't replied
Please help me!

http://img515.imageshack.us/img515/2782/img7618hj0.jpg

[mgm2000ro]

I 'm from Romania and Orion has not service in my
country.
I want buy this schematic if you had it. Please help
me!
mail: mgm2000ro@yahoo.com

[sdoom]

i ve never worked on an Orion amp and dont have any schematics. But from what i can see on the picture the burned part looks very similar to the part above. So I´d assume you can take the part values from there.

[mgm2000ro]

The amplifier has 2 smps's and the one in the picture is broken. Orion designed the amp such that the amplifier is controlled (gain, low-voltare, smps-power and a lot more things) by the PIC16F837A. If something happens to the amp, the controller "locks" and there noone over here can unlock it. I want to bypass that controller..
I'm also looking at re-working the auxiliary smps by winding some wires on the main smps.
Right now, I've managed to turn it on and make a couple modifications, but I don't know how to control the out-put relays and the whole protection circuitry.

[mgm2000ro]

It would be a lot easier if I had the schematic...any of you guys know where I can buy one ?

[nsxxtreme]

If it is writing the flash portion of the memory then good luck. Maybe find another working amp pull the device out and read the flash. Then reprogram yours? I can't find a datasheet for the device.

That's pretty dirty of Orion.

[Perry Babin]

Are you sure that the PIC controller is managing all of those circuits?

As far as I know, the PIC controllers in the gen 5 amps only controlled the digital potentiometer.

[mgm2000ro]

Thanks for the answers guys.

I hope I'm not wrong, but judging from the amp's manual, the amplifier has some assorted settings you can adjust with the Directed bitwriter. The PIC controller can also be linked to the car alarm system and it controls volume, the whole turn on sequence (delay, soft-start), SG3525 shutdown, auxiliary smps turn on and the protection circuits (overload, low-voltage etc). This controller locks when something happens with the amplifier and Directed are the only ones that can un-lock it.
I've bypassed DS1808 (dual log digital potentiometer), I've removed all the diodes on the output pins of the PIC (+5v, which doesn't allow the amp to turn on).
The auxiliary smps, with the yellow EDT transformer is removed because it blew and I can't rewind it because I don't know the number of windings.
I've managed to wind some wires on the main smps and obtain the voltages that the auxiliary smps produced(+/-15V & 12V-gnd-rail ) .
Right now, I've managed to turn it on and make a couple modifications, but I don't know how to control the out-put relays and the whole protection circuitry.

Anyone have any clues or hints ?


please ignore the sounds
look pwm
http://s52.photobucket.com/albums/g8...urrent=123.flv

http://img180.imageshack.us/img180/1039/img7878bn7.jpg

http://img442.imageshack.us/img442/8379/img7879qc2.jpg

http://img185.imageshack.us/img185/9207/img7880hv8.jpg

[MatthewS]

I have the PIC image on file. I pulled it from one that came in 'just in case' I can program them too. Let me know if all else fails.

- Matt

[mgm2000ro]

That would be great, only thing is I don't have too much experience with programming PIC's
Could you guide me along the process ?
my mail: mgm2000ro@yahoo.com