Question about Cyberhome CH-LDV 700B Portable DVD Player
I've been using this DVD player for a while without problems. But, now I can't get a picture on the the LCD screen. I can hear the DVD, but not picture. Can you help?
Sound like you have a back-light issue with the LCD. Not sure what kind of technology they use to back-light the LCD, but on all LCD monitors and TV's they use CCFL. Cold Cathode Fluorescent Lamps can burn out or can get damaged. Not sure if the DVD player uses them or not, you just need to open the back panel of the LCD and see what they use. Also CCFLs need an Inverter circuit to convert the DC current to AC current. If it uses CCFLs than it can only be 2 things the Lamps or the Inverter circuit. Check the lamps, if they look dark at the ends, than most likely a bad lamp. If the lamps look fine, than you will need a volt meter to check the status of the inverter.
Posted on Nov 09, 2007
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