Author Topic: Please help with microcontroller  (Read 548 times)


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Please help with microcontroller
« on: December 07, 2017, 11:52:13 PM »
Hi guys.
Please, I need help to repair this marantz pm488av receiver.
The microcontroller blew and I need to replace it. I can get the chip uPD7803 (NEC), and put it in, but need help with the configuration of the chip.
I'm in cpt. I've tried so many places but can't get reply and the last time people had snotty comments . can I please get some constructive help on this matter?

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Offline gapco

Re: Please help with microcontroller
« Reply #1 on: December 08, 2017, 08:57:40 AM »
You will need flashing hardware, the software to run it and the flash files for your chip. You can find the datasheets on the internet.
Failing that send me a PM with your email address and I'll send you the datasheets and application notes.
Give me an espresso and nobody gets hurt....