Electronics > Repair
What more i can do?
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222Lab_Test222:

--- Quote from: Harry_22 on November 18, 2024, 10:36:09 am ---Before I forget.
Attach the trace from continuous beeper. We will look for 63 Hz presence there.

--- End quote ---

Please Explain in details, I does not understand lots of things, still begineer and learning.
Harry_22:

--- Quote from: 222Lab_Test222 on November 18, 2024, 12:53:26 pm ---The thing i ask about TP is because in RTC datasheet its written Timing Pulses.

So TP 11 PIN RTC is Timing Pulses and TP1 and TP2 is Test points, am I right?

TP of RTC is Input or is It Output data?
Can you explain this picture, whats the text mean?

--- End quote ---

I understand. It's good that you asked again. Sometimes I don't even understand myself.

Don't mix abbreviations from the board and datasheet. They are different.
TP on the board is a Test Point.
TP in the datasheet is a Timing Pulse.

Look at some further explanations in the drawing.
The drawing is the language of engineers (my German teacher used to say that).

I will make the detailed explanation later on. When I see the full picture. Sorry.
And now we are only collecting information on RTC, you are my hands and eyes. Don't let me down!

Regarding Beeper.
Make the same measurement on its signal pin. Next one pin is +5V or GND.

222Lab_Test222:

--- Quote from: Harry_22 on November 18, 2024, 08:41:53 am ---

Please check TP2 Gnd connection on both boards.
Next have a look on TP1 signal as usual.


--- End quote ---

TP2 GND connection is good, same in working and non working board.
TP1 Signal is below, Its look same as RTC 11 PIN where non working has frequency and working doesnt have,
1st Image Non Working.
2nd Image Working.
222Lab_Test222:

--- Quote from: Harry_22 on November 18, 2024, 09:14:32 am ---Please check the Pins 9, 1, 2, 3 (see the picture attached)
It seems we have already looked at the other signals and they are the same (better double check).


--- End quote ---

Here, these are similar to both Working and Non working board.
222Lab_Test222:
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