MTX 6500D repair

bil · 26th May 2006, 08:58 PM

Hi, i have an MTX 6500D blown. The electronic component labeled Q673 is blown and i don't know what it is. It is marked on top : 1D. Does anyone know what it is so i could replace it?
Thankx

Martin

Perry Babin · 27th May 2006, 07:28 PM

There are several components that use that code but it's likely an MPSA42. The following link will help you to determine the part number of various SMD semiconductors. If you lose this link, search for 'SMD codebook' with google and it will likely be the first link.

http://www.tkb-4u.com/code/smdcode/indexsmdcode.php

swordfish689 · 27th May 2006, 11:00 PM

its actually a MMBTA42 , Im really surprised that would blow, i've never seen one blow in the power supply side.

bil · 29th May 2006, 06:19 AM

Yes, me too but actually he didn't blow, a capacitor 470nj near him burned and the semi-conductor and the pcb burned. The big capacitor also blew up. But the output transistor seems to be fine. Thank you for the advice i will try that.

26th May 2006, 08:58 PM	#1
bil diyAudio Member Join Date: May 2006	MTX 6500D repair Hi, i have an MTX 6500D blown. The electronic component labeled Q673 is blown and i don't know what it is. It is marked on top : 1D. Does anyone know what it is so i could replace it? Thankx Martin

27th May 2006, 07:28 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	There are several components that use that code but it's likely an MPSA42. The following link will help you to determine the part number of various SMD semiconductors. If you lose this link, search for 'SMD codebook' with google and it will likely be the first link. http://www.tkb-4u.com/code/smdcode/indexsmdcode.php __________________ 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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27th May 2006, 11:00 PM	#3
swordfish689 diyAudio Member Join Date: Jan 2005 Location: The Great Lakes	its actually a MMBTA42 , Im really surprised that would blow, i've never seen one blow in the power supply side.

29th May 2006, 06:19 AM	#4
bil diyAudio Member Join Date: May 2006	Yes, me too but actually he didn't blow, a capacitor 470nj near him burned and the semi-conductor and the pcb burned. The big capacitor also blew up. But the output transistor seems to be fine. Thank you for the advice i will try that.

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