Originally Posted by roxiedog13
Laser is one component , extremely hot processors are another issue, combined they make a lot of heat . One of the reasons they ( supposedly) did not put FI in the VW675 was the extreme heat caused
by the electronics that the chassis had no way to deal with . Liquid cooling is the only thing that makes sense, certainly works in the PC world on the high performance systems. Try to deal with
all this heat with fans and you end up with the problem JVC has with the RS4500 . Then again, Sony would have been wise to turn up the fans in the VW1100 with that 350 watt lamp. The heat
produced by my VW675 is excessive compared to the RS600 I owned, can't imagine how much heat was saturated within the VW1100 . Heat was bad for SXRD, trying to keep the projector quiet
caused another underlying problem IMHO. That is why the VW5000 has liquid cooling, layer # 5 of the suggested fix for panel degradation .
Laser light itself probably not the issue, the diodes necessary to run this probably are the source of heat. Just a guess, I'm sure others will confirm .
I spent a fair amount of time reading up on liquid cooled computers, a number of factors are involved on how efficient a cooling system is.
Heat sink design (how well does it cover the component that needs to be cooled and what material it's made of _ cooper is the best when it comes to price)
The design of the internal fins where the coolant passes over.
The coolant itself (water is best, but not practical)
The size of the radiator. (thickness and surface area play a big part here as well as the design of the tubes and the matrix in-between the tubes)
How many fans and how fast they run.
The maximum amount of heat remains constant, the only thing one can do is ramp up the efficiency of the cooling system and one way is to increase the fan speed _ cheap, but a noisy way to do it.
I get the impression that if the fans are running too fast, then someone didn't put enough thought into the liquid cooling system.
The cabinets on these laser projectors are already big, another few inches in a number of directions to accommodate a bigger rad and more fans, isn't going to matter is it ?
If I had one of these projectors I would be tempted to add some external rad(s) and run them somewhere, where the heat could be dissipated more efficiently then in a warm home theatre room.
An external pump may be needed to push the extra coolant required.
Off course this would void the warranty I'm sure.
Honestly though, if it was getting that warm and someone was spending that amount of money I would expect to have external rads where a professional installer would be needed.