Power Acoustik OV2 4ch

m4ick · 17th October 2010, 12:17 AM

Had shorted outputs and a shorted output driver, A/B design.

The output driver is marked:

647
7B4
ECB

Anybody know what part that is? Can't seem to find it.

Thanks a lot.

m4ick · 17th October 2010, 12:21 AM

Also, it drives a 2SB688 (PNP) and is in a TO-92L package.

Perry Babin · 17th October 2010, 12:39 AM

2sb647, most likely. If you need a replacement, the KSA1220 will probably work. The case is different but the pin configuration is the same.

m4ick · 17th October 2010, 12:40 AM

Ok, I think it is a 2SB647. Being that this is A/B design can a KTA1023 be used in its place? If so, should I replace the complimentary driver with KTC1027?

m4ick · 17th October 2010, 12:42 AM

Woops, guess you answered the first question. Is KTA1023 a reasonable sub?

Perry Babin · 17th October 2010, 12:53 AM

The 1023 should work.

It's probably not necessary to have matched drivers.

m4ick · 17th October 2010, 01:03 AM

thanks a bunch, she's powered up and the outputs are ice cold.

17th October 2010, 12:17 AM	#1
m4ick diyAudio Member Join Date: Jan 2010 Location: Gainesville, FL	Power Acoustik OV2 4ch Had shorted outputs and a shorted output driver, A/B design. The output driver is marked: 647 7B4 ECB Anybody know what part that is? Can't seem to find it. Thanks a lot.

17th October 2010, 12:39 AM	#3
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	2sb647, most likely. If you need a replacement, the KSA1220 will probably work. The case is different but the pin configuration is the same. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

17th October 2010, 12:53 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The 1023 should work. It's probably not necessary to have matched drivers. __________________ 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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Power Acoustik TS980 sparks, blows fuses even without power on.	BoeroBoy	Car Audio	7	30th September 2010 02:17 PM
Power acoustik schematic	brandes.cm	Car Audio	11	21st January 2010 11:15 AM
Power Acoustik Amp Help	22chet	Car Audio	7	22nd February 2009 10:05 AM
Power Acoustik Amp	chadrock	Car Audio	28	19th March 2008 05:37 AM
Power Acoustik A2400db	spooney	Car Audio	21	19th March 2008 12:05 AM


	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

17th October 2010, 12:21 AM	#2
m4ick diyAudio Member Join Date: Jan 2010 Location: Gainesville, FL	Also, it drives a 2SB688 (PNP) and is in a TO-92L package.

17th October 2010, 12:40 AM	#4
m4ick diyAudio Member Join Date: Jan 2010 Location: Gainesville, FL	Ok, I think it is a 2SB647. Being that this is A/B design can a KTA1023 be used in its place? If so, should I replace the complimentary driver with KTC1027?

17th October 2010, 12:42 AM	#5
m4ick diyAudio Member Join Date: Jan 2010 Location: Gainesville, FL	Woops, guess you answered the first question. Is KTA1023 a reasonable sub?

17th October 2010, 01:03 AM	#7
m4ick diyAudio Member Join Date: Jan 2010 Location: Gainesville, FL	thanks a bunch, she's powered up and the outputs are ice cold.

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

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