Power Acoustic PS2-2200 - Page 2

Perry Babin · 12th January 2012, 01:26 AM

When all 6 are in the circuit are those the only 3 that get hot? Or do all 6 in that channel?

mike49504 · 12th January 2012, 01:27 AM

All 6 get hot

Perry Babin · 12th January 2012, 02:02 AM

If you short legs 1 and 2 of Q104 (bias transistor), do the outputs still get hot?

mike49504 · 12th January 2012, 02:07 AM

Yes

I was doing some testing and not sure if its suppose to be like this or not but the channel thats giving me problems I have 00.2 ohms between the negative speaker terminal and the B+ terminal

Perry Babin · 12th January 2012, 02:10 AM

Check the bias transistor. Confirm that it has two good junctions.

mike49504 · 12th January 2012, 02:13 AM

NO Rca's were unpluged

Bias transsistor has 2 good junctions

Perry Babin · 12th January 2012, 02:22 AM

Assuming that the positive terminal for this channel is used for bridging, having 0 ohms to the B+ on the negative terminal would be a problem. It would seem to indicate that the amp has a shorted transformer. Connect the meter to those two terminals and twist the transformer. Does that eliminate the short?

12th January 2012, 01:26 AM	#11
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	When all 6 are in the circuit are those the only 3 that get hot? Or do all 6 in that channel? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

12th January 2012, 02:02 AM	#13
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	If you short legs 1 and 2 of Q104 (bias transistor), do the outputs still get hot? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

12th January 2012, 02:10 AM	#15
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Check the bias transistor. Confirm that it has two good junctions. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

12th January 2012, 02:22 AM	#17
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Assuming that the positive terminal for this channel is used for bridging, having 0 ohms to the B+ on the negative terminal would be a problem. It would seem to indicate that the amp has a shorted transformer. Connect the meter to those two terminals and twist the transformer. Does that eliminate the short? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	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

12th January 2012, 01:27 AM	#12
mike49504 diyAudio Member Join Date: Sep 2006	All 6 get hot

12th January 2012, 02:07 AM	#14
mike49504 diyAudio Member Join Date: Sep 2006	Yes I was doing some testing and not sure if its suppose to be like this or not but the channel thats giving me problems I have 00.2 ohms between the negative speaker terminal and the B+ terminal

12th January 2012, 02:13 AM	#16
mike49504 diyAudio Member Join Date: Sep 2006	NO Rca's were unpluged Bias transsistor has 2 good junctions

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
schematic of Phonic PWA 2200 power amp?	richi	Solid State	0	4th October 2011 09:27 PM
2200 uf 6.3 v Black gate for 2200 uf 16 vdc	max29	Analog Line Level	7	7th November 2007 08:51 AM
NAD 2200 power supplay help needed	cypher	Solid State	16	31st March 2007 09:40 PM
Audio Alchemy ultraDac/dacman power supply ps2	endovision	Digital Source	1	7th March 2005 12:58 AM
ps2 power supply	moi	Everything Else	11	16th July 2003 10:24 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read