Quote:
Originally Posted by DavidU
Does anything look lihe a small ceramic cap? They may use a thermistor.
Only way to go is monitor the temp whilst touching selected parts with a soldeing iron to warm it.
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Thanks for the response, David.
No, the only thing in there that looks like a ceramic cap is the 10K thermistor I put in there
BTW, that appears to be the standard value used in most of the little digital thermometers you can buy. I got a Jaycar QM6324 "
Mini Indoor/Outdoor Thermometer with Clock" for $20 or so. Lets me measure obs ambient and DSI cold finger temps.It comes with a long lead and big remote sensor on it. I measured that with multimeter at ~7.8K, them measured a 10K thermistor at my ambient and it also was 7.8K. Swapped out the big package with the little one and voila! same temp reading. I then glued the little one to the CCD cold finger. My plan is to use it later as the sensor for temp stabilisation if I go that far.
Everything on the PCB is surface-mount and small. I am hesitant to go barging around in there with my "giant" soldering iron ( and lousy eyesight). May be the last resort though.
I may try a post on CN, perhaps more folks there who have tinkered with cooling these things.
Cheers,