orion 250 hcca - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 22nd September 2006, 11:19 AM   #1
diyAudio Member
 
Join Date: Sep 2006
Default orion 250 hcca

HI I bought an orion 250 hcca car amp and i need to see if anyone has a schematic for it or that might be able to tell me what transistors go in the power supply like what the orignal part number is on the transistors due to the fact when i got the amp nothing was in there if anyone could help me out i would greatly appericate it
  Reply With Quote
Old 22nd September 2006, 11:38 AM   #2
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
The first generation hcca amps used BJT transistors. Most of the later models used FETs. If it had a TL494/594 in the supply, it very likely had FETs originally but I've seen a few with the TLx94 IC that used BJTs in the supply. They generally used SMP60N06 FETs. I use IRF3205s when I rebuild the supplies.

If it has MPSA06/A56 drivers, the A56 drivers are likely blown. Replace both the A06 and A56 drivers for both groups of FETs. They're inexpensive and easy to change.

There's a 10 ohm resistor from the emitter of the A56 to ground. They often open.

If you can post a good quality photo of the amp, that would be useful if you need more help.
  Reply With Quote
Old 22nd September 2006, 12:47 PM   #3
diyAudio Member
 
Join Date: Sep 2006
Default orion 250 hcca

thanks for the help with the transistors in the power supply the ones that were in it were ssp6n60 now a new question there are 2 chips at the end of the output side they are QFX333 and QFK326 just wondering what part number i can replace thoose with?? i would greatly appericate it if someone could help me out
  Reply With Quote
Old 22nd September 2006, 01:02 PM   #4
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
What generation amp is it? Is it a 250R?

The newer amps used NDP7060s in the supply.

Does it have the digital PIC controller and the oscillator (in the small metallic enclosure)?

Are these parts damaged?
  Reply With Quote
Old 22nd September 2006, 01:22 PM   #5
diyAudio Member
 
Join Date: Sep 2006
Default orion 250 hcca

its an older amp orion 250 hcca digital refrence it dosent have a pop top just power/ground and speaker wires comming out the side of the amp and for the outputs they are using 2n6488 and 2n6491 but at the end of the output sides the last 2 chips are QFX333 and QFK326 but thoose wont cross to anything so wondering if u might be able to tell me what part numbers i would need to replace them they are burt in half thanks
  Reply With Quote
Old 22nd September 2006, 01:58 PM   #6
diyAudio Member
 
Join Date: Sep 2006
Default orion 250 hcca

heres a pic of the amp on which model it is
Attached Images
File Type: jpg orion250top.jpg (56.8 KB, 349 views)
  Reply With Quote
Old 22nd September 2006, 09:02 PM   #7
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Those are the regulators. Can you read any other numbers on the face of the IC (LM337 and LM317)?
  Reply With Quote
Old 26th September 2006, 06:09 AM   #8
diyAudio Member
 
Join Date: Sep 2006
Default orion 250 hcca

hi just wondering what else i check i put new 317's and 337's in th amp and the ones on the bottom i put a fep in and a fen chip in and for diodes on top a u1620 and a u1620r and all new outputs i only put in 2 power transistors per side ssp6n60 to fire up the amp to see if it would come on well it did and the power transistors got red hot almost instantly i had to put a new cap in also because the dumbass who had it before me put in backwards which fried the amp to begin with so im wondering what i should check next on it so the power transistore dont heat up i checked all the 10 ohm resistors and they all check fine if u could help me i would greatly appericate it
  Reply With Quote
Old 26th September 2006, 06:20 AM   #9
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
If it has two large rectifiers under the board, check those.

If they are OK (or don't exist), pull the rectifiers you replaced. Does it heat up?

If so, the driver transistors could be defective. The MPSA56s fail virtually every time the FETs fail. The 10 ohm resistor from the emitter of the A56s to ground must be within tolerance.

If it doesn't heat up, make sure you have the rectifiers installed in the proper location (positive/negative). The 1620R are the same as the FEN rectifiers.
  Reply With Quote
Old 26th September 2006, 08:34 AM   #10
diyAudio Member
 
Join Date: Sep 2006
Default orion 250

i dont see any a56 on the board all i see is like mpsu57 chips is that what u are refering to?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Orion 225-HCCA av8rdav Car Audio 7 7th September 2008 05:50 AM
Orion Hcca boxcustom Car Audio 0 26th January 2007 06:36 PM
orion 250 hcca mike49504 Car Audio 0 17th January 2007 12:12 PM
orion 250 hcca mike49504 Parts 1 22nd September 2006 08:40 AM
1st gen Orion HCCA 225 kobornigan Car Audio 6 10th April 2005 08:14 PM


New To Site? Need Help?

All times are GMT. The time now is 02:21 AM.


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