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MMATS DHC1400.1 Rebuild
MMATS DHC1400.1 Rebuild
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Old 21st June 2018, 11:59 PM   #1
Formas is offline Formas  Jamaica
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Join Date: May 2008
Default MMATS DHC1400.1 Rebuild

Greetings Iíve gotten this mmats amp to repair but concerning the parts I want to order them but I need to know the parts that will work and make the amp efficient.
The owner says it was given to previous tech persons and they concluded that it needs the HIP4080AIP driver chip, I would be replacing that anyways. There are switching on the power supply but for some reason I want to use parts from one batch and compatible specs there are currently IRF3710 in the power supply is that compatible?
The output fets are mixed with IRF640N and 94-2355 Iím not sure if the 94s are originally installed but the 640 was added obviously.
The amp is currently not producing audio I want to rebuild it, what are the part name for the power supply and output fets.
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Old 22nd June 2018, 12:07 AM   #2
Perry Babin is offline Perry Babin  United States
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I don't have direct experience with this amp but I think I'd use 3205s in the supply and IRF3710Zs in the output stage.
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Old 22nd June 2018, 03:36 PM   #3
Formas is offline Formas  Jamaica
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Good day Mr. Perry, based on my geological location my only option (ruling out China) is DigiKey, the IRF3710Z with the TO220 packages are out of stock and mostly obsolete, im asking if the IRF3710Z with the TO262 package (digikey #IRF3710ZLPBF-ND) can be substituted as the formation of the amp doesnt use the tab for mount (screw & spacer) as the are just bending under the bottom for a circuit board pressure clamping method.
They both are 160watts but technically one is of 6mm of metal missing from the tab of the component wich is mathematically 48mm over the 8 component surface to dispense the heat.
let me know what you think about the TO262 packages.
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Old 22nd June 2018, 04:30 PM   #4
Perry Babin is offline Perry Babin  United States
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Can you buy from any of these?
IRF3710ZPBF - Infineon






- datasheet
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Old 22nd June 2018, 05:13 PM   #5
Formas is offline Formas  Jamaica
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ok, my method of payment is just paypal, and not much electronics component merchant accepts paypal. I'll just have to research the options you send and see if paypal is a method of payment from the suppliers you sent me. thanks ill keep you posted.
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Old 22nd June 2018, 05:21 PM   #6
Perry Babin is offline Perry Babin  United States
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Doesn't PayPal offer a debit card that allows you to buy from anyone who accepts credit/debit cards?
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Old 22nd June 2018, 06:59 PM   #7
Formas is offline Formas  Jamaica
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Most of those options are for US signed up Paypal. ive been thru that with them already. The Arrow company allows payment from non-resident Paypal and also have a guest check out mode, so i can buy from them.
some of the vendors you sent thru the Octopart have asian relations, are there any credibility in buying parts from those merchants?
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Old 22nd June 2018, 07:04 PM   #8
Perry Babin is offline Perry Babin  United States
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All distributors listed as 'authorized' should be OK. Arrow is OK. I never bought from Verical but they are part of Arrow so it should be OK.
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Old 23rd June 2018, 10:47 PM   #9
Perry Babin is offline Perry Babin  United States
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What about reloadable debit cards or 'gift' cards that you can buy at various stores? Those are generally usable at all distributors because they're seen as a visa or mastercard.
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