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Old 26th March 2010, 04:44 AM   #1
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Default MTX Thunder 81001

I just got this amp in for repair tonight. Looks like its gonna be a fun one.
This thing must have gotten real hot inside it melted the bar that holds the fets in place.
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Old 26th March 2010, 09:19 AM   #2
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Do NOT power this amp up without having everything clamped down. The regulators (especially the positive regulator) can fail within seconds which can cause components to fail throughout the amp.
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Old 18th November 2012, 01:43 AM   #3
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Default MTX 81001 DAMAGED HELP..!!!

GREETINGS,

I have damaged my MTX 81 001, missing pieces in the power and want to help me with the values​​, these are:
Q210 and Q221.

thank you very much dear friends.
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Old 18th November 2012, 02:38 AM   #4
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Q221 is a PZTA06. I don't see a transistor with a circuit board designation of Q210. MTX will give you the part number if you email them.
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Old 18th November 2012, 03:18 AM   #5
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Default MTX 81001 DAMAGED HELP..!!!

This transistor is next to Q221, and is the same size, and is connected to the base with R252 = 100 ohm
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Old 18th November 2012, 03:35 AM   #6
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This transistor is next to Q221, and is the same size, and is connected to the base with R252 = 100 ohm

thank you for your valuable information
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Old 18th November 2012, 06:43 AM   #7
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That one is also a PZTA06. The attached photo is from a 1501 but the layout in that area should be the same.
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Old 19th November 2012, 01:21 AM   #8
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Default MTX 81001 DAMAGED HELP..!!!

I can help with the voltages that come to this board, I know these values​​, was measured at the pins but I do not know if they are correc.
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Old 19th November 2012, 02:29 AM   #9
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Default MTX 81001 DAMAGED HELP..!!!

This is the card that does not work
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Old 19th November 2012, 03:17 AM   #10
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I didn't notice yesterday but you asked for help in a thread started by someone else. In the future, please only post in other's threads when you're trying to help them. When you need help with something, start a new thread.
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