muvc1
02-02-2009, 04:55 AM
Make CW600P last long
I found that the main IC in the CW600P receiver (the biggest IC in the middle of the main circuit board) running very hot and the high temperature would cause the IC malfunction and the receiver hanging-up. I glued a heatsink on top of the IC and the temperature reduced a lot and it’ll make the IC last much longer without any heat-related problems which would make the receiver hung-up.
Caution: These procedures require open the cover of the receiver and it will void the warranty (if your receiver is still under the warranty) and, it could cause problem if the add-on heatsinks did not install properly. Do so at your own risk.
First of all, turn-off the main power-switch at the back of the receiver and unplug the power cord.
Removed 5 small screws on the cover and removed the cover, you’ll see the main IC – the biggest IC in the middle of the main circuit board.
To find a proper size heatsink: you could find it from (//parts dot digikey dot com/1/parts/988288-heatsink-3-1-25-25watt-568303b00000g dot html) or, any proper size aluminium piece that would fit on top of the big IC would do the job. Caution: do not let the heatsink touch any other components surrounding the main IC.
Glue the heatsink on top of the IC (it has 2 situations):
If the surfaces of the add-on heatsink and the IC both were pure aluminium and pure plastic without any other materials, in this case, you could applied supper-glue on top of the big IC; put the flat-surface of heatsink on top of the IC; gently press the heatsink, make it contacted evenly & tight on the IC (do not apply too much force).
The supper-glue will first dry within 5-10 minutes and, the heatsink will finally firm attach on top of the IC after the supper-glue fully dry (about 9 hours).
However in some other cases that the supper-glue may not work because either the IC or the add-on heatsink had a layer of material that makes the supper-glue won’t work, in such case, if the layer is on the heatsink, you could use a find sand-paper to sand it out until you see the pure aluminium or, you could purchase a “heatsink glue” (the product that for glue heatsinks on the ICs, it looks like some sort of the silicon glue, sell in the electronics stores such as “Active Electronics” or some other similar stores).
Make sure that the add-on heatsink did not touch any other components and let it firmly attached on top of the main IC, then close the cover and the receiver will last long.
And, it would even better if you could find 2 more proper size heatsinks, glue them on each of the aluminium heatsinks that were already on the circuit board – one is located near the antenna input on the main circuit board and, another one is located on the smaller circuit board where the power cord was connected (Important: make sure that the add-on heatsinks glued on the original heatsink would not touch any other components), it would make the temperature lower on both transistors (one is for the power supply to the LNB’s and another is for the power supply for the whole receiver) and the receiver would be much durable.
I found that the main IC in the CW600P receiver (the biggest IC in the middle of the main circuit board) running very hot and the high temperature would cause the IC malfunction and the receiver hanging-up. I glued a heatsink on top of the IC and the temperature reduced a lot and it’ll make the IC last much longer without any heat-related problems which would make the receiver hung-up.
Caution: These procedures require open the cover of the receiver and it will void the warranty (if your receiver is still under the warranty) and, it could cause problem if the add-on heatsinks did not install properly. Do so at your own risk.
First of all, turn-off the main power-switch at the back of the receiver and unplug the power cord.
Removed 5 small screws on the cover and removed the cover, you’ll see the main IC – the biggest IC in the middle of the main circuit board.
To find a proper size heatsink: you could find it from (//parts dot digikey dot com/1/parts/988288-heatsink-3-1-25-25watt-568303b00000g dot html) or, any proper size aluminium piece that would fit on top of the big IC would do the job. Caution: do not let the heatsink touch any other components surrounding the main IC.
Glue the heatsink on top of the IC (it has 2 situations):
If the surfaces of the add-on heatsink and the IC both were pure aluminium and pure plastic without any other materials, in this case, you could applied supper-glue on top of the big IC; put the flat-surface of heatsink on top of the IC; gently press the heatsink, make it contacted evenly & tight on the IC (do not apply too much force).
The supper-glue will first dry within 5-10 minutes and, the heatsink will finally firm attach on top of the IC after the supper-glue fully dry (about 9 hours).
However in some other cases that the supper-glue may not work because either the IC or the add-on heatsink had a layer of material that makes the supper-glue won’t work, in such case, if the layer is on the heatsink, you could use a find sand-paper to sand it out until you see the pure aluminium or, you could purchase a “heatsink glue” (the product that for glue heatsinks on the ICs, it looks like some sort of the silicon glue, sell in the electronics stores such as “Active Electronics” or some other similar stores).
Make sure that the add-on heatsink did not touch any other components and let it firmly attached on top of the main IC, then close the cover and the receiver will last long.
And, it would even better if you could find 2 more proper size heatsinks, glue them on each of the aluminium heatsinks that were already on the circuit board – one is located near the antenna input on the main circuit board and, another one is located on the smaller circuit board where the power cord was connected (Important: make sure that the add-on heatsinks glued on the original heatsink would not touch any other components), it would make the temperature lower on both transistors (one is for the power supply to the LNB’s and another is for the power supply for the whole receiver) and the receiver would be much durable.