Orion HCCA 250r diagram of BJT's, FETs, and rectifiers

ash4kel · 6th August 2011, 05:26 PM

I have an Orion hcca 250r that I have been working on. I actually had it working but then decided to replace all the BJT's to make sure it would be consistent. Since I have done this I now blow fuses as soon as I put in the fuse. I need to make sure that I didn't screw up and possibly transpose the rectifiers or put something where they shouldn't be. A close up of both side would be great. Thanks. Scott

Perry Babin · 6th August 2011, 08:11 PM

The amp has the 6491s near the RCA end of the board. There are 5, then 5 6488s then 5 6491s then 5 6488s.

The other side is all power supply FETs.

The rectifiers are under the board.

6th August 2011, 05:26 PM	#1
ash4kel diyAudio Member Join Date: Mar 2011	Orion HCCA 250r diagram of BJT's, FETs, and rectifiers I have an Orion hcca 250r that I have been working on. I actually had it working but then decided to replace all the BJT's to make sure it would be consistent. Since I have done this I now blow fuses as soon as I put in the fuse. I need to make sure that I didn't screw up and possibly transpose the rectifiers or put something where they shouldn't be. A close up of both side would be great. Thanks. Scott

6th August 2011, 08:11 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The amp has the 6491s near the RCA end of the board. There are 5, then 5 6488s then 5 6491s then 5 6488s. The other side is all power supply FETs. The rectifiers are under the board. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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