Help with my MARK 4B : bad Voltage supplies because bad PCB.

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Joined
Sep 7, 2023
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Location
france
Hello

Someone have a pcb card voltage supplies for my Mark IV B. I have a big variation when a look the voltage ... it's not all the composants inside i tested all and it's ok... i just want to change this card for a new power supplie ok



i have trouble with the card inside so i just decide to change it... i have the good schematic for this version (1N4007 , 220yf/300V , Stdby and choke....)

if someone have it or just a layout ( sprint-layout or other with composants implantaion) i'm very interessed. i can realize the pcb here...in france.

Note: I have some residue around the welds (see de pict)... How to clean them?

thx a lot for your answer

dom
 

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