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SPL G5-4500D Missing Parts
SPL G5-4500D Missing Parts
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Old 12th September 2019, 05:39 PM   #1
Formas is offline Formas  Jamaica
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Default SPL G5-4500D Missing Parts

Hey guys, does anyone have a schematic or familiarity with this amp for the practical component part numbers; transistors U4 & U5, IC U12, those are primarily for the sub (5th) channel.
U101, U301, U401 are for the full main channels, an IC is in one of the full main channel but the legend is under Iím guessing U201 (IRS2092S) but Iím not sure if itís the original and applies for the missing ones.
The tech before me removed and misplaced the missing parts. The amp is with me so if other picture angles are needed that can be done.
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Old 13th September 2019, 04:27 PM   #2
Formas is offline Formas  Jamaica
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Any suggestions, Anyone?
Could the IRS2092S be the driver for the IRF540 outputs on the full main channels?
The U4 & U5 are rail feeders +/- for the IRS2092S, what I donít know if they are just BJT or special Regulators N/P type.
The U12 is daisy changed to the rest of opamp which are all 4558 (could it be the same)?
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Old 13th September 2019, 07:07 PM   #3
Perry Babin is offline Perry Babin  United States
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The pin configuration for U4/5 looks like 78xx/79xx regulators but the 2092 doesn't use that sort of supply like op-amps.
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Old 14th September 2019, 07:11 PM   #4
Formas is offline Formas  Jamaica
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But the outputs Mr Babin goes straight to the Vdd and Vss pins on the 2092s.
Any thoughts on the U12 also?
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Old 14th September 2019, 08:13 PM   #5
Perry Babin is offline Perry Babin  United States
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I'm wrong.

It appears to have Ī5v regulators. Look at the following file on and near page 29.
http://www.bcae1.com/temp/iraudamp9%20-%20IRS2092S.pdf
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Old 14th September 2019, 10:18 PM   #6
Formas is offline Formas  Jamaica
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Ok, so what part could I use for those regulators (even tho the legend seems TO-92ish) could I use the TO-220 78xx/79xx(5v)?
And any word still on the U12, could it be the same as the array?(4558)
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Old 14th September 2019, 10:39 PM   #7
Perry Babin is offline Perry Babin  United States
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Look at the pin configuration including the polarity of the input, the ground pads and the output pads. Any regulator that has the correct polarity and pin configuration should work. Since they have what appears to be common grounds, the 78/79 type regulators are likely the right parts.

Unless you're in a hurry, you should wait to see if someone can provide more definitive information.
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