I recently purchased a jvc hd-61z456-aa 2005 production not working for dirt cheap. Bulb was blown put in a new one and it works.
Picture was really bad. Obvious dirt in system. I took it all the way apart except for the light engine and cleaned it. This thing was the dirtiest tv i have ever seen. All the system fans had this thick brown residue witch was not cigarette smoke herb neither and almost completely plugged. Almost 2 inches of dust bunnies in the power board. Everything just encrusted.
After cleaning It still has a really bad picture. Looks like what dust causes to a standard rptv after several years. Blurring on white screens ect. The brown sticky stuff and dust is definitely in the light engine. I want to clean it but have been told before to never open these.
Can it be cleaned safely or will opening the unit destroy it? Can i clean the actual dlp chips? What with? Spray alcohol? Can anyone point me to a service manual for this model to see the light engine blow up? Maybe i can do a partial dismantle and at least clean all the lenses.
I also noticed a small 40mm fan that cools an ati chip on the hdmi board. Would placing a ram heatsink on it be a good idea? This board its on was encrusted in dust and shows signs of high temps. Figured while im in i might as well improve it. Any cooling mods recommended?
Is there a dedicated thread for this chassy tv? I have searched and all seem to be newer or better models. Is this an oddball with few produced? Any firmware upgrades for it?
Picture was really bad. Obvious dirt in system. I took it all the way apart except for the light engine and cleaned it. This thing was the dirtiest tv i have ever seen. All the system fans had this thick brown residue witch was not cigarette smoke herb neither and almost completely plugged. Almost 2 inches of dust bunnies in the power board. Everything just encrusted.
After cleaning It still has a really bad picture. Looks like what dust causes to a standard rptv after several years. Blurring on white screens ect. The brown sticky stuff and dust is definitely in the light engine. I want to clean it but have been told before to never open these.
Can it be cleaned safely or will opening the unit destroy it? Can i clean the actual dlp chips? What with? Spray alcohol? Can anyone point me to a service manual for this model to see the light engine blow up? Maybe i can do a partial dismantle and at least clean all the lenses.
I also noticed a small 40mm fan that cools an ati chip on the hdmi board. Would placing a ram heatsink on it be a good idea? This board its on was encrusted in dust and shows signs of high temps. Figured while im in i might as well improve it. Any cooling mods recommended?
Is there a dedicated thread for this chassy tv? I have searched and all seem to be newer or better models. Is this an oddball with few produced? Any firmware upgrades for it?
