Humax 5400 PSU OPT1 details?

A

ajtdmw2003

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#1
Hi,

OPT1 and IC1 of my Humax 5400 power supply unit were blown to pieces. I have found out that IC1 is KA431.

Does anyone know the details of OPT1 (it literaly exploded to dust) i.e. what opto should I use to replace it?

Thanx!
 
Channel Hopper

Channel Hopper

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#2
If its deceased and now resembles the remains ofthe hoover bag, then you have to look at more parts that are on the blink.

Optocouplers convert signals from the PSU to the watchdog start up system using safe non voltage protocol (light) . More than light has passed through the chip to cause the damage and this needs to be repaired first
 
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