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1、长虹彩电iic总线（ChanghongcolorTVIICbus）Applicablemodels:ChanghongC2518P,C2919P/PS/PV/PK/PD/PN/PW,C2939KS/KV/KE/AE/KN,C2920,C3418P/PV/PN/PB,C3419PN/PT/PB/D(NC-3machine)seriescolorTVsets:First,maintenancemodeaccessmethod(1)pressthe"F"keyandthe"TV/AV"conversionkeyoftheremotecont
2、rolfirst(noticetopress"F"key),trytopresstotherightasfaraspossible,orstickthecontactpointoftheleftprintedboardonthe"F"keyintheremotecontrollerwithadhesivetape.(2)releasethe"F"and"TV/AV"keys,andthengraduallypressthedigitalkeysontheremotecontrol"1","0","4","8"fourkeys.Prop
3、erlyoperated,the"M"characterisdisplayedonthescreen.(3)afterthe"M"characterappears,press"F"and"programmenu"key(imageadjustmentkey),andthenappear"M00","M01"and"M02"onthescreen......"Etc..ForC2919PS,thescreenwillappear"M00-48"word,forC2919PVwillappear"M00-50"word.(4)ifyouw
4、anttochangethesizeoftheparameter,pressthevolumeincrement/minuskey.(5)aftertheadjustmentiscompletedbyremotecontrol,theTVwillautomaticallywithdrawfromthe"M"state.Applicablemodels:ChanghongC3418N,C3418PS,C3419D,C3419PD(NC-3movement)seriescolorTVsets:Two,maintenancemodeacce
5、ssmethodusingK4Jremotecontroller,disconnecttheV12diode.(1)usethetuningkeyboardontheremotecontroltoenter(exit)the"M"state.(2)usingtheprogramtoincrease/reducethekeyboardtocallouttheparameters,theprogramisadjustedforward,reducedtobackward.(3)changethesizeofeachparameterbyv
6、olumeincrement/minuskey.(4)inthe"M"state,usethenumerickey"2"toenter(exit)the"horizontal-"state.Inaddition,the"*"characterparametersfortrialproductionadjustment,generallydonothavetoadjusttheparametersofthefactory,isagooddebugging.AfterreplacingtheCRT,theitemsrelatedtoimp
7、rovingimagelinearitymustbereadjusted.Applicablemodels:ChanghongT2981,T2982,T2981A,T2982A,34T88,34ST18,R3418T(NC-7movement)Maintenancemodeentrymethod(1)pressthemutebuttonoftheremotecontrolonce,andthenreleasethekeyafterthemutecharacterappearsonthescreen.(2)pressthemutebut
8、tonagain,andpressthemenukey(MENU)ontheotherhand.Thered"S"characterappearsabovetheleftcornerofthescreen,thatis,
