Electronics > Repair
What more i can do?
<< < (87/112) > >>
Harry_22:
Ok, good!

Where the trace?
Harry_22:
@CaptDon,

it’s commendable that you’re worried, but the OP says he’s not tired and is ready to continue. I also don’t really care about the number of pages. Even the fact that we overload EEVblog with pictures is nothing for me.

What makes me despondent is that sooner or later the topic will be closed and our communication will end.

PS
By the way, how do you feel about valve guitar amplifiers?
222Lab_Test222:

--- Quote from: Harry_22 on December 12, 2024, 05:41:23 am ---Ok, good!

Where the trace?

--- End quote ---
I don't have 10K resistance, I need to buy one.
222Lab_Test222:

--- Quote from: asis on December 11, 2024, 04:26:37 pm ---
You simply do not have enough patience.

Try to realize this and reset the CMOS not only by removing the battery and short-circuiting the contacts of the seat, but also by short-circuiting the +5V bus to GND.
(You can do this on the chip itself).
Naturally, with the equipment disconnected.

--- End quote ---

I tried that too But unfortunately it didn't work, same beep.
I left the 5v and GND for 30 min while taking out CMOS battery and also sorting the battery terminals.
I also sorted the Pins of IC23 .
222Lab_Test222:

--- Quote from: CaptDon on December 11, 2024, 03:24:00 pm ---You could do a million more screen shots of data and address lines but it won't help to zero in on why the unit doesn't work since when it isn't working the busses are unpredictable. You almost need to write a simple loop program and burn it to an eprom and use it to examine what the busses are trying to do. Several hundred posts and it is no closer to working today than it was. Maybe you can find a local 'hands on' technician willing to help you have a look at this unit? This thing is so FUBAR'ed we can never repair it through posts even if we approach 36 pages of posts. You need the help of a good technician with their hands and eyes on the board.

--- End quote ---
Lets see, to be honest i am learning in first hand and repair in second.
So i do not want to go to repair shop to repair.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod