blown two zx 700.5s and two deq 9200a - Page 11

Perry Babin · 4th December 2009, 03:10 PM

You'd want to confirm that the meter reads OL base to emitter and base to collector with the probes placed one way and several megaohms with the probes reversed. It should read OL no matter the placement on the collector and emitter.

If you're still unsure about the test procedure, go to the following page. Find the section shown in the attached image, read what's circled and follow the instructions. In this instance, it would be better to set your meter to ohms instead of diode-check because the transistors may only be leaking.

Basic Amplifier Repair - Transistor Test Applet Link

rolexcomm · 4th December 2009, 03:20 PM

both of them are bad, they both have continuity between emitter collector and one doesn't show mega ohms like it should between emitter, base.

Perry Babin · 4th December 2009, 03:25 PM

OK, well let us know if there are any other problems after replacing them.

rolexcomm · 4th December 2009, 03:34 PM

will do, one last question. Do you think both of these are the same part numbers. the q315 has a hole burned in it on the top. Can only see it with a magnifying glass

Perry Babin · 4th December 2009, 03:41 PM

They should be the same.

rolexcomm · 5th December 2009, 01:57 PM

got both of them replaced and the amp was put to work yesterday at idle for about 5 hours and so far so good. Today will hook it up and try it out..

rolexcomm · 7th December 2009, 03:03 PM

Perry, Ran this amp all weekend in my car and everything is a ok..... Thank you again. You know ur stuff...

4th December 2009, 03:25 PM	#103
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	OK, well let us know if there are any other problems after replacing them. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

4th December 2009, 03:41 PM	#105
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	They should be the same. __________________ 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
Blown amp pre-amp in or HU pre-amp out?	scraph	Car Audio	5	23rd January 2009 01:58 AM
Sub or Amp Blown	kdhorne73	Car Audio	6	21st January 2009 02:32 PM
mtx blown please help	ADRIANd	Car Audio	32	1st October 2006 12:35 AM
PPI 600.4 amp blown?? HELP!!	D_Bull	Car Audio	1	4th March 2005 06:18 PM
Blown AMp??	zorb_rules	Car Audio	0	25th June 2004 09:39 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


	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

4th December 2009, 03:20 PM	#102
rolexcomm diyAudio Member Join Date: Oct 2009 Location: Where there are too many latin babes!!	both of them are bad, they both have continuity between emitter collector and one doesn't show mega ohms like it should between emitter, base.

4th December 2009, 03:34 PM	#104
rolexcomm diyAudio Member Join Date: Oct 2009 Location: Where there are too many latin babes!!	will do, one last question. Do you think both of these are the same part numbers. the q315 has a hole burned in it on the top. Can only see it with a magnifying glass

5th December 2009, 01:57 PM	#106
rolexcomm diyAudio Member Join Date: Oct 2009 Location: Where there are too many latin babes!!	got both of them replaced and the amp was put to work yesterday at idle for about 5 hours and so far so good. Today will hook it up and try it out..

7th December 2009, 03:03 PM	#107
rolexcomm diyAudio Member Join Date: Oct 2009 Location: Where there are too many latin babes!!	Perry, Ran this amp all weekend in my car and everything is a ok..... Thank you again. You know ur stuff...

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