Electronics > Repair
Help identifying NTC value
keenox:
@Harry_22: Here you go. You still didn't tell me what you need them for.
Harry_22:
--- Quote from: keenox on November 16, 2024, 04:03:17 pm ---@Harry_22: Here you go. You still didn't tell me what you need them for.
--- End quote ---
Great photos!
Thank you very much!
You'll see soon...
Harry_22:
Here!
By the way, everything became clear with your thermistor now. Usually it is not placed there - between MOSFET keys and HT Capacitor. It operates during startup when charging current flows through the Inrush Diode. But then it’s completely out of place.
Use the one with minimal resistance - SKC15037 (15mm, 3 ohms, 7 Amps)
Attached is a file for PaintNET. Look, thanks to your strong hand, how precise the layers are!
Check the green components.
https://drive.google.com/file/d/1FnUlIw8UpXSYTlo2fm6CLhklv_FOI4R_/view?usp=sharing
PS
Sorry MOSFETs should be mirrored on the picture.
keenox:
I already did. The bridge rectifiers are ok (I think I didn't push the probes hard enough the first time). The inrush diode is ok. I didn't check the PFC module, but I also assume it's ok. The middle MOSFET from the PFC side (with the heatsink) is shorted and I think that was the main cause. It caused this thermistor and the film capacitor near it to blow.
Now what I asked is if I can replace the original SKC15037 with the beefier SCK253R0 (3 ohms, 14 Amps)
Navigation
[0] Message Index
[*] Previous page
Go to full version