MTX TE1501D part identification - diyAudio
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Old 2nd September 2015, 06:39 AM   #1
diyAudio Member
Join Date: Feb 2013
Default MTX TE1501D part identification

I got an MTX TE1501D for repair, but missing a few parts.
FET401, 192, 400, 191 and Q401, D402 (Q402?)
Does anyone know what the original parts?
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Old 2nd September 2015, 11:03 AM   #2
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Location: Louisiana
FETs 401, 191 and 192 are IRF540s. If you have IRF3415s, use those instead. FET400 is unused in the photos I have.

Q401 is an MMBTA42.

D402 is an MMBD4148.

Do not plug the preamp board in until you confirm that all regulated voltages are correct.

Look for open 10 ohm resistors near the op-amps near the RCAs and on the preamp board.

Last edited by Perry Babin; 2nd September 2015 at 11:31 AM.
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Old 3rd September 2015, 06:56 AM   #3
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Many thanks!
D402 is an MMBD4148SE ? SE is it correct? (common cathode-anode)
What type marking H5L (D404), J53 (D410) and E3J (D203).
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Old 3rd September 2015, 07:02 AM   #4
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Use only the first two characters (H5, E3...).

For D402, look up the datasheet and match the package.
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Old 29th September 2015, 07:46 PM   #5
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C410 and C411 caps are 100nF?
D401 is 18V zener? Marked 831B, it's 1SMA5931BT3G ?
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Old 30th September 2015, 02:03 AM   #6
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I don't know about the caps but 0.1uf is a common bypass value.

Yes for the zener.
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