Question about Zenith DVB312 DVD Player

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Tv has sound but no image

Hi m8s,i have a cheap TV from AG BK-114,when i turn it on its all ok for a few minutes,then the image starts do disappear till its all black but the sound keeps fine,after a few minutes the image comes back again and disppears.I found a damaged capacitor and changed it,when i turn it on the image stands for more time but keeps disappearing,i thought it was something related with the PTC,the only thing i found in the PCB that looked like a PTC was this component MZ73A-18RM.i am still thinking that its a component that isnt working properly when it gets hot.What you think? i really appreciate your help,its my motherĀ“s kitchen TV :-) Thanx in Advance.

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  • gilesrm Sep 16, 2008

    Same problem except no image at all, same component MZ73A-18RM gets quite hot.



1 Answer

When you say no image this could mean anything from, snow picture, blank screen, blue screen. Also, dry joints on the PCB can cause such a problem. More especially on the picture tube board.

Posted on Oct 04, 2007


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