Hello everyone. DAC as in the title. After connecting the power supply, the standby mode, the diode lights up, the display is dark. Pressing the power button does not change anything externally. Comes voltage of 1.55V on the controller oscillator, which however disappears after a few seconds. There are no oscillations. Does anyone have experience with servicing these devices? Does anyone have a service manual or a diagram? Thanks in advance for any help
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Is there a way to externally charge a L19D3PDA battery from the laptop. I have a broken charging port on my laptop and am trying to find a way to charge the battery for it. I have been doing some research and I have found that there is a module, TP4056, that can be used to charge Li-ion batteries. It says it is used to charge single cell Li-ion batteries. The L19D3PDA battery is a three cell battery. Is it possible to use the module to charge my battery and it would just be very slow? Or would that be a bad idea. Is there a different kind of module I can use to charge my Li-ion three cell battery?... -
Hi I want to read/program the KBC file off IT8519E. Does anyone know how to do this. I have physically removed the IT8519E chip from the motherboard & I have soldered it on the addon programmable card to program on the RT809H. How will I do this? Do I have to apply 3.3 volt & ground externally from a bench power supply?? It will be great if someone can guide me, first time I will be doing this programming. Thanks -
Hello i have a problem with a MacBook battery.
I want to charge it externally (without the pcb) because there is an issue on pcb and i cant charge it now.
Have anybody a solution for charging the battery without logic board (outside of the book)
I uploaded the pic with pinout and my measurings.
Thnx...05-12-2020, 10:38 AM -
Hi All,
I have an old Denon DR-M10HX cassette deck and want to service it.
I have aquired some test tapes and I have a scope. When I connect the scope to the L&R line level outputs I see a great deal of high frequency noise. Equally when I play a 3.5KHz test tape it's hard to see the test frequency through the noise.
Any advise would be welcome.
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Recently I had gone to get my laptop serviced however the repair shop bricked my system and now has told me that the ec Kb9028q-c was not working properly, they plan on replacing it but they don't have the program that needs to be flashed onto the new chip. It would be greatly appreciated if someone could share this file with me, I've mentioned other details that I found important below:
- ps the laptop was not turning on after servicing, no light for power and display wasn't on either. (I don't use this site so I apologise for breaking etiquette)
- laptop model: MSI...