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Been three days with not a single minute of time lost. Now to see how many days, weeks, or months the fix works. I may help my pool guy fix some since he replaces these once in a while for time loss. I will buy a heat gun and some more conformal coating spray for water proofing the repair. Note...

Ok, cleaning the circuit with Iso-Propyl Alcohol did not work. So, I order the super capacitor, real time clock, and 32 kHz crystal from Digikey and replaced them today on my soldering bench. The pool is back running but until it makes it one week without losing time, I won't know if it is...

One more thing, I am pretty sure the 32.768 kHz Crystal (X2) is an Epson MC-306 / 6 pF (SER4099CT-ND at Digikey) and costs $.046 The Dallas / Maxim RTC part (U2) is $3.50 at Digikey (DS1302Z+CT-ND) The microprocessor is most likely fine and we can't replace that anyways because it is factory...

So, I have confirmed a few things. (lost 10 minutes on the clock over night) 1) U1-Microprocessor is PIC18F2620 (28 pin version) 2) U2-Real Time Clock is DS1302Z 3) C3-Super Cap is 5v and .33UF My super Cap was near 5V and I cleaned a little corrosion off with rubbing alcohol. I am going to...

So, my Aqualogic GLX/PCB/Main is doing the same thing. Random time loss each day. I did find Digikey.com has the mentioned capacitor for $4.00 (‎283-2814-ND‎ ‎KR-5R5V334-R‎) but I need to take my board off and look at it closer before I know it is really a 5.0V / .33 uF Super Cap. So, I am...