SOURCE: hisense 42inch lcd tv
It sounds like it's the inverter panel which lites the lcd back light.
If it's under warranty, try to replace it, or take it in for svc.
SOURCE: No sound on Hisense LTDN24V86US 24 LCD TV. Tried headphone jack still no sound.
this company has went out of business at least 2 times--They are in China and parts are for the most part non-existent.
Likely that problem is on main board (the large and most expensive board in the set.
A simple check to see if sound is present when using a DVD etc also will confirm if via rear jacks if problem in set or not.
SOURCE: My hisense 50 inch lcd tv has picture but no sound.
If you still have back light, then the T-con is probably defective. If you don't have back light, then you either have a bad power board/inverter or a defective panel
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Looking for ic's number of hi-sense tv model no:tc2198 54cm tvl
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