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Old 06-13-2018, 08:08 AM
kf4rca kf4rca is offline
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Join Date: Feb 2015
Location: Atlanta
Posts: 737
Insignia NS30htv

This was a brand sold by BestBuy and manufactured by Sharp. This 12 year old orphan looked like it had ingested more than one rainstorm of water, but after drying out the only thing not working was sound. Not a speaker or output chip issue. Appears to be in the AV switcher chip. Can't find a schematic.
These HD CRT sets are certainly unique since they weren't made for very long. It uses an inline CRT and weighs about 75lbs. (I was able to get it into the back of the truck myself without a lot of effort.)
The left board is signal, audio, cpu, tuner, and decoder. The right board is sweep, PS and HV.
Attached Images
File Type: jpg Ins_1.jpg (91.6 KB, 29 views)
File Type: jpg Ins_2.jpg (72.1 KB, 26 views)
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