I just hooked up the phone recently and the LCD display is almost unreadable.....the characters are there but garbled...tried a new power supply but no luck....Any quick part replacement fix?...Also, is the operating manual for this phone available online for downloading?...thanks
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Re: Siemens Gigaset 2420 Desk Staion LCD Display
That is a common problem with those types of displays, they are sensitive to heat, cold and any movement. They were used by Siemens, and almost all the other manufacturers during this time period. Unfortunately on this particular model, they are not soldered in, they are pressed on by a machine. So if you don't have a Zebra cable press machine ($1000's), and a brand new display, you can only resort to sending it in for repair. Sorry.
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To reset the Gigaset 2420 Pin
At "System Settings" in the Menu press *65# then press the Select button.
"System PIN Reset" will be displayed (if the PIN was not already the default).
The default PIN is 0000.
OK, here's what happened. I had the same issue of the phone resetting when a call came in, I thought it was a power issue and through some testing it was not. Here's the fix...Menu \ system settings \ enter pin (if you haven't changed it it is 0000) scroll to factory default and reset. This fixed the problem somehow for me, make sure to write down any impotant messages because it will erase everyting (silly me). I hope this helps.
I had the same issue a while back and I believe a new power supply fixed that problem. If you know anyone with a multi-meter and they know how to use one they can tell you if your power supply is bad or not putting out enough voltage. I believe this system requires 12 volts and 400 milliamps it will say on your current power supply.
Hi Dan, Yes it is a very nice system, but like any device it is sensitive to electrical storms and power fluctuations. A surge or sag (AC power going up or down), can cause the sensitive digital chips to get damaged, and from my experience if you have tried resetting the unit, and your msg lites continue to flicker and the LCD is blank, it has some serious damage and needs repair or replacement.
I just replied to a similar post. This is a common problem, not only with the Siemens but most all manufacturers that used this design of display on many different devices. And in this case, the display connections are pressed on with a special machine and can't be replaced by a do it yourselfer. Sorry I can only recommend sending it in for repair.