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Is there a way to find out, or is it easier to just replace them? I already did the two easy ones. The remaining two have a plastic connector next tot them.

I measured R5246. Ohms in circuit: 2K (without power adapter) pin 1: 1.803V (with power adapter) pin 2: 5.8mV (with power adapter)

Thanks for the reply, My colleague ordered these CD3217 chips: https://nl.aliexpress.com/item/1005002555973605.html?spm=a2g0o.order_list.order_list_main.33.714779d2OhpShT&gatewayAdapt=glo2nld On the chip B12 is printed. I do not have a donor of this specific model. The behavior is the same on...

Dear community, I received an A2141 for no power. I found some issues while scanning through the microscope and also while measuring. CB300 was short UB300 was suspect UB400 was suspect L3500 was liquid damaged C9503 was ripped, including one of its pads. After both UB300 and UB400 were...