Resistor Value

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megawatt
Posts: 11
Joined: Sat Sep 16, 2023 4:06 am
Location: Yarmouth, Nova Scotia, Canada

Resistor Value

Post by megawatt »

Could anyone with a schematic for the ZX475ti amplifier take a look at it and let me know what the value of Resistor (R935) would be.

Thank you
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Jacampb2
Mad Scientist
Posts: 1562
Joined: Sat Apr 19, 2008 11:57 pm
Location: Beaverton 48612

Re: Resistor Value

Post by Jacampb2 »

I assume this is in reference to your other question, R935 on the power supply daughter card is 681R. This resistor is the current limit for the Opto-isolator which mutes the poweramp. If it's faulty all channels will be muted, not two. See my reply to your other post explaining the likely fault conditions.
M: M100, M44 for a custom amp project
Zx: Zx500, Zx450, Black Zx350
ZxTi: 4 Zx600Ti's, 1 Zx400Ti
Ti: 5 800.1's & 900.7 for a custom amp project. 1 1200.1, 1 1000.2
Tantrum: 2 1200.1's, 1 600.4, 1 500.2
XS: XS6600
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