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Hello
Just got myself one of these, and a 10/1 probe.
My aim is to see an eye pattern in order to repair an old Technics CD Player.
Do I need 2 channels to do this? Digital or analogue?
If I do, I found this mod to get two analogue and two digital channels going:
https://github.com/ardyesp/DLO-138/blob/master/pics/HardwareMod.png
Just needed some guidance in understanding the mod. My current understanding is:
ON SEN2 section
From C8 120pF (-)ve leg hook up a wire to
-> the leg of
MCU TP11 / #11/ / PA4
next
Cut the trace between the R15 1K and R14
hook up a wire before the cut to the Trigger
after the cut trace, hook up a wire to the source
There is a blue line between the trigger and source
then there is another line to SWDIO before the R24 that eventually runs to the #2 pin of the SWD port for Digital 1 and 2 channels
My question is, is all this necessary or will the new firmware work automatically without these hardware mods? I cannot seem to find an easy to understand guide begin noob at oscilloscopes. Thanks for your patience
Just got myself one of these, and a 10/1 probe.
My aim is to see an eye pattern in order to repair an old Technics CD Player.
Do I need 2 channels to do this? Digital or analogue?
If I do, I found this mod to get two analogue and two digital channels going:
https://github.com/ardyesp/DLO-138/blob/master/pics/HardwareMod.png
Just needed some guidance in understanding the mod. My current understanding is:
ON SEN2 section
From C8 120pF (-)ve leg hook up a wire to
-> the leg of
MCU TP11 / #11/ / PA4
next
Cut the trace between the R15 1K and R14
hook up a wire before the cut to the Trigger
after the cut trace, hook up a wire to the source
There is a blue line between the trigger and source
then there is another line to SWDIO before the R24 that eventually runs to the #2 pin of the SWD port for Digital 1 and 2 channels
My question is, is all this necessary or will the new firmware work automatically without these hardware mods? I cannot seem to find an easy to understand guide begin noob at oscilloscopes. Thanks for your patience
above I spontaneously found an older analogue oscilloscope on FBMarketplace. It is a BWD-539 with two channels and probes. Starting to put things together, and understand how CD players work and how to troubleshoot for beginners. Thanks all.
