16AVR-4308CIUnless specified, 1U-3800-1 A.VIDEO UNIT part.FInputSCheck 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 : IC412-13pinInput C : IC418-13pinOutput Y : IC412-3pinOutput C : IC418-3pinNG Check analog SW settings.IC412-9,10,11pin : L(0V)IC418-9,10,11pin : L(0V)NG Check IC505, IC508 and CW132soldering, or DIGITAL UNIT flaw.OKOK Check soldering of IC412 and IC418.Check input/output of AMP.Input Y : IC407-3pinInput C : IC408-3pinOutput Y : IC407-1pinOutput C : IC408-1pinNG Check soldering of IC407, IC408 andsurrounding parts.OKCheck input/output of MIX AMP.Input Y : IC410-3pinInput C : IC410-1pinNG Check soldering of IC410.OKCheck input/output to OSD driver inputsignal selector.Input : IC512-3pinOutput : IC512-4pinNG Check analog SW settings.IC512-9,10,11pin : H(+5V)NG Check IC508 and CW132 soldering, orDIGITAL UNIT flaw.OKOK Check soldering of IC512.Check input/output of OSD driver.Input : IC510-15pinOutput : IC510-13pinNG Check soldering of IC510 andsurrounding parts.OKCheck input/output of buffer AMP.Input : IC406-3pinOutput : IC406-1pinNG Check soldering of IC406.OKCheck input/output of analog SW.Input : IC416-2pinOutput : IC416-3pinNG Check analog SW settings.IC416-10pin : L(0V)IC416-9pin : H(+5V)NG Check IC508 and CW132 soldering, orDIGITAL UNIT flaw.OKOK Check soldering of IC416.Check input/output of AMP.Input : IC405-3pinOutput : IC405-1pinNG Check soldering of IC405.OKCheck cable between main unit and mon-itor or Check monitor.NGOKNG NGOKOKNGOKNGOKNG NGOKOKNGOKNGOKNG 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