24AVR-4308CIUnless specified, 1U-3800-1 A.VIDEO UNIT part.LInputSCheck 5VA and +5VD.+5VA : CW082-3,4pin-5VA : CW082-1,2pin+5VD : CW132-1pinNG To troubleshooting 1.1 Power not turnon.OKCheck input/output of analog SW.Input Y : IC411-13pinInput C : IC417-13pinOutput Y : IC411-3pinOutput C : IC417-3pinNGCheck analog SW settings.IC411-9,10,11pin : L(0V)IC411-6pin : L(0V)IC417-9,10,11pin : L(0V)IC417-6pin : L0V)NG Check IC505, IC508 and CW132soldering, or DIGITAL UNIT flaw.OKOK Check soldering of IC411and IC417.Check input/output of AMP.Input Y : IC407-5pinInput C : IC408-5pinOutput Y : IC407-7pinOutput C : IC408-7pinNG Check soldering of IC407, IC408 andsurrounding parts.OKCheck input/output of analog SW.Input Y : IC415-2pinInput C : IC415-15pinOutput Y : IC415-3pinOutput C : IC415-13pinNG Check analog SW settings.IC415-10pin : L(0V)IC415-9pin : H(+5V)NG Check IC506 and CW132 soldering, orDIGITAL UNIT flaw.OKOK Check soldering of IC415.Check input/output of AMP.Input Y : IC404-3pinInput C : IC404-5pinOutput Y : IC404-1pinOutput C : IC404-7pinNG Check soldering of IC404.OKCheck cable between main unit and mon-itor or Check monitor .NGOKNG NGOKOKNGOKNG NGOKOKNGOKw w w . x i a o y u 1 6 3 . c o mQ Q 3 7 6 3 1 5 1 5 0 992894298T E L 1 3 9 4 2 2 9 6 5 1 3 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com