Ryobi 662H electrical problem

Hello, I have a Ryobi 662H and I am having electrical problems, when you turn it on it goes crazy, all the functions are activated at the same time, and I do not have the electrical manuals to be able to look for the problem, someone has had that happen to them.

 

Hi, please test first:

1) Regulated power supply :+5Vdc+ 24Vdc+12Vdc, in the Power section., must be in tolerance 0.7% up or down.

2) If this is faulty , will be affect the CPU +Clock in MHZ .

3) Test the battery 3.3 or 3.6Vdc and replace if this is low for CMOS in the MOther board.

4) Clean, the pins of CPU, RAM, ROM, carefully, for oxide, and dust, and look, for dry +colder solder joint, loose connectors, or loose wires, oxide.

5) Tight and clean Edge connector board, must of 75% electronic problem, is coming from this details.

6) Corrupt software from EPROM, replace it!

 

Thank you very much, I will tell the engineer, I hope this can help us

 

Do you have an idea where I can buy the electrical manuals

 

OK. Good

 

Not really, but i recommend you search in Internet or go to the website for RYOBI.