If it is switched off for more than a short period the clock loses time and it forgets it's most recent position. And it requires a cold start, that is it takes maybe 15 minutes to re-establish its current position. At that point it works OK again but I suspect the memory battery is failing.
There is a button cell soldered to the main circuit board that powers the real-time clock while the unit is off or the main battery is removed or flat. After a couple of years this button cell dies and has to be replaced. I've had this problem twice in five years, and each time replacing the button cell fixes the problem.
Needs a Garmin workshop, or someone who's good with a fine-point soldering iron.
I had the same problem. The Real Time Clock slowly started to fail and
my unit lost both time and position between uses. Had to return to
Garmin at a cost to fix of over $200.00. They could not fix it and sent
me a remanufactured unit.
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Gigabyte doesn't list 3 long beeps as an error code, so I'm not sure if you're actually getting 3 short beeps or maybe 1 long and 2 short or... But, for reference, Gigabyte's error code list is as follows (depending on whether you have an AWARD BIOS or an AMI):
1 short beep: System normal
2 short beep: CMOS Error
1 long beep and 1 short beep: Memory error
1 long beep and 2 short beep: Graphic card error
1 long beep and 3 short beep: AGP error
1 long beep and 9 short beep: Memory Error
Continuous long beep: Memory not correctly installed
Continuous short beep: Power supply unit failed
1 short beep: Memory Error
2 short beep: Memory parity check error.
3 short beep: Basic memory 64K address check error
4 short beep: Real Time Clock malfunction .
5 short beep: CPU error
6 short beep: Keyboard error
7 short beep: CPU interruption error
8 short beep: Graphic card error
9 short beep: Memory error
10 short beep: CMOS error
11 short beep: CPU cache memory malfunction
It might not be a lot of help, but it's somewhere to start... and at least this way you'll know what to be listening for.
the clock must supply directly from the battery , if no anytime when you switch on and of the clock come back to 12 and lose the memory.Is not difficult but need time to find the wire from clock and connect to an permanent 12 volt supply
somewhere on the board , consumption is very small few miliamps.
Current draw (not voltage draw) must be nearly zero Micro-amps even with alarm system, clock time keeping, and computer memory support--otherwise the battery would discharge over a fairly short period of time. The higher the Micro-amps, the quicker the battery dies.
There's a thermostatic switch that kicks the fan on and off. It is apparently shorted, causing the fan to run continuously. Check with your local auto parts store -- you be able to replace the switch without having to replace the entire fan assembly. In the meantime, pulling the fuse is a lot better than disconnecting the battery. You won't lose computer memory, clock, stereo memory, etc.
COBAo = Elevate mechanism malfunction.
The exit tray home position sensor is not blocked even after the lapse of a given period of time after the tray has started moving up.
An encoder clock input is not detected within a given period of time during operation of the tray.Check the sensors,motors and his connectors.
How to reset:
1. Press the trouble reset switch on the Tech.Rep.Setting Switches Board to reset the following malfunctions:scanner,fusing,exposure related malfunctions and C3FF.
2. For any other malfunctions open and close the front door or turn OFF and ON the power switch.
If you lose your preset stations as well, it means that your memory wire (sometimes yellow sometimes red) is not hooked to a constant power source. Get a testlight and find a wire in where the radio is at that has constant power once you find that attach the memory wire.