DVD SERVICE MANUAL 一、Normal problem Item Defects
Contents
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3. DVD SERVICE MANUAL Normal problem Item Defects Description Solution Remark 1 No display in VFD screen Decoder can t Check working voltage for decoder If power supply is for all kinds of decoder work normal or else pls analyze other reason 2 Some errors in opening disc tray such Loader damaged change loader only can replace by the same as the tray can t open open slowly or solution open with quiver 3 Can t read the disc Such as regional Loader can t change 24 pin flat horizontal line disc CD VCD DVD MP3 work 4 Some error in VFD display excessive VFD screen change screen line lack of line dark line damaged 5 Remote control does not work well no Receiver damaged Change DVD receiver change remote control control low sensitivity angle and direction deflect 6 No function by press key IC CS16312 Change CS16312 error 7 MIC has no sound Potentiometer of Change potentiometer Font board damaged 8 RGB has no picture Problems on RGB line loosen must firm it or change it decoder 9 distortion YUV line open Line loosed need firm it or change it 10 5 1ch has no sound Decoder 12V Change power supply lines power supply lines open Decoder board Circuit Graph m 210805 I aa gc pce c we os T 104 I 333 1252858 5075625508 5029 015 y 024 5
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