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The problem had nothing to do with the grey ribbon cables.
Quite a bit of it around the legs of a group of electrolytics on the Power Supply board (probably for HV insulation).
I have to say that a simple thread like this says a great deal about Siglent and tautech. I would have suggest to Siglent that they post a disclaimer (do at your own risk) but regardless, two thumbs up on the just do it attitude.
I plucked the silicon off the LCD Mylar flexcable that goes directly to the LCD and reseated the cable, booted up the scope and the display is now back to normal see the pic. There you have it the cable socket is a hinged type that lifts off the cable as I discovered under the silicon adhesive so any contraction of the silicon over time is going to reduce conductivity of the cable to socket as it would have a tendancy to unlock the cable.
The silicon I'm referring to is on the small PCB stuck to the back of the LCD panel which has two connectors one is the end of the ribbon cable coming from the main PCB and the other is a socket for the Mylar (clear orange) flexcable which goes into the TFT display itself. This small PCB looks to be a bridge between the grey ribbon cable and the orange Mylar flexcable. The problem had nothing to do with the grey ribbon cables. There's no tape on any of my cables. There appears to be copious amounts of white (neutral core) silicon used. Quite a bit of it around the legs of a group of electrolytics on the Power Supply board (probably for HV insulation). I know this stuff shrinks with age and realistically I can see why this would cause a problem on the specific socket due to the construction. Once you pick off the silicon the socket latch comes away at 90deg to the cable, it's the hinged variety. I didn't get a pic of this as the scope is all sealed up now. There's a possibility this will occur with other units. Very strange how the display was reversed though. Anyhow I thank you all for the suggestions. Bigfoot.
Dear friends, thank you for responding! I understand you correctly I need to release the cable from the connector and re-insert it into place? Sorry to ask again but I work with a translator. Thank you for your understanding.
Thank you for the prompt information, please tell me where you are hidden behind lcd panel connection? These connections also go through a mechanical connector?In all the pictures you can see that the ribbon cable goes directly to the screen without mechanical coupling, it is necessary to remove the metal housing from the lcd screen?
heloo tautech, ihave siglent sds1102dl, i incorect firmware update with another series, and now my scope is not normaly, do you have firmware for sds1102dl ? i attached image for firmware version befor updated, thanks to you...