长虹彩色电视维修实例

?¤?????????????????? 1?? ???ì??A6?ú???ú?ú??21″?????????±???ò?ì???òTDA7496??????°é???????±????CRT???÷?ù??×ó????°??????÷°???????±????à???? 2????????±??????????????????????????????????????????¨?????à???????????????????????????????????°??????·??ó???·V101″E”????×èR115??????????????????????????????0.01UF?? 3??A6?ú???ú?ú???÷???????±??????°×???ó????????????±????????ó?ó???ú???????????????????÷???ì?éLA7688?¨1?????????·???????????ù?????????í?éLC89950?????¨·?·¨????????LA7688?¨1???????????±?????ú????TV??PAL/NTSC???±???????¤×÷???????è????1.7??2.6V?????±?????ú?¤×÷AV??PAL/NTSC???±??????????2.9??3.8V???±?¨1???????????????ò??????LC89950?°???§???·???? 4??A6?ú???ú?ú??21?¨??????????????”1″???????????ú?ó???????????ó?????????ü???????????????ó??????·?·¨??????×°CPU????CHT0408??5L21??CHT0408??5L21???ú??CHT0405??5J77??CH0403??5H61?? 5??LA7688A????LA7688B?ú??????±????à??????LA7688A??????????°?????JU7.820.1534/1360??Y°?????R362×ó????VD622????????±???????????????°???????JU7.820.1535
/1462??Y°?????V617″C”???????ó??×ù????????±????????????????????ó??????CT??500V??100P?? 6??CN??5?ú?????????ú?????????ó?????????????????????ì?éAN5095?¨20????????×??????????????·??????????????????????0.7V?±???¨20???????????????????·?????????? 7??CN??5?????????ù??????±?????±??ú???¨????????????????±?????THD215?? 8??CN??5?ú??????????·?·¨????CPU?¨36???????????????·?òCPU?¨9???????????·??????????×????ó??°??????÷????±??°?ü???????????ú????×????è????°?±??°?ü?ó??????????????FF?? FF??·???°??????ü??????????????????°??????ü??±??????ó??????±í??????·??ú?????????????? ???? ?? N2918 2916FN 2518FN 25N1??29N16??25N18??29N18??25N19 21?¨ R2518N 2919FN????1 27 07 07 04 C1 07 24????2 47 47 03 03 04 03 47 9??NC??5?ú???????????éTEA2261??BL8701?ú???±???????·????R810????????1.5K????6.8K??R818????????680?·????1.5k?? 10??????CN??5?ú???ó???ú?ú???ú?·????????·?????×÷??????±?????C821???????? 0.68U????CD11??50V??1UF??C825????????50V/1UF????50V/2.2UF?? 11??CN??5?ú???
???????????L801????1uH????????????2.2uH???????? 12??CN??5?ú???ú?ú????±?????????????????·???”????”??????C675??CD11??16V??470uf????CD288H??16V??2200uF?????? 13???????á??CN??5?ú?????¨???????ò?????????????á??????????·?·¨??R819????RT13??0.166W??330?·??R822??????RT13??0.166W??1.3K??C821??????CD11??50V??1UF??C825??????CD11??50V??2.2UF??C824??????CL21X??50V??1000PF?? 14?? CPU??CHT0807??CHT0819?????±??????D301?????????? 15????????G2510B??G2529??G2532??G2536??G2538??G2539??????????????TV??AV?????±°é?????????è?????????·???????í???????????¨1????·????¨AWM1007??11/0.16 ????120MM??±?????W028???×??W410??????????AWM1007??11/0.16????70MM??±????????×??W412??R048?????????????????¨2????????????W412 10mm??×??????????????????????÷???÷?????????????¨?? 16??CH??10?ú????????·?C??MOS??V840????STW10NB60??BUZZ334??IRFIB5N65A?ú????°?×°???????è??VD840??R821?????????? 17??CH??10?ú???ù??CPU???°?????????ü????CHT0808??CHT0818??CHT1201??CHT1202??CH0808??CH0818????????C
PU????????8MHZ???§?????ó????????6MHZ?§???????§?????????ì????·??ò????”????????????±??ú°??ü?°???ü????????”???ó?? 18?? CH??10?ú????±????????ì??·?·¨???¨1?????ú?????±?????????????????????????¨???????????±°é?????ù?????±???????à???ó??×??????ú?¨???á????B/B±??°???????????ú???????????????¨2?? ????·?·¨????R061????????470?·????100?·??W076??2CK75D???????????¨3?? ??????????±??????????à??????TDA6108???????ú???????±??A. ??????×èRY04A?¨0.5W/470?·????????CY01??CY02??????????????RY04A×°??CY01??????CY02??????????B. ????XPY03???¨1?????????????·??C. VDY01A??VDY02A??VDY03A×°??·?·¨??????????????????±??????????????????????ó??CY01??????????????D. ??????????CY88???? 19??????????????×?·??????????ú?????±??×?·??????????±???¨1????V438A??BE??????5MM???????¨2??R120????CL21X??50V??6800PF?? 20????????±?????????????????·??¨?????±???????????????????±??????±??°??????????????????·?·¨??????·?·¨????CHT0808????CHT0818?ò???÷?±???????¨?÷???????????????÷?????????ú??±ê×?87.5?????????????????????··ù?????
?????·ù????30??????????·?·¨??????????R206×è???????????? 21?? G2985?ù????±?BSC68H2??BSC70E2???????? 22????±?????????????????V840?¨W10NB60????VD840?¨WOSZ15B????VD873?¨RG2????F801?¨4A/250v???±????VD873?¨RG2???ü????BYM26D?????????????ó?? 23??CN??12?ú???ú?ú???÷??????????·?25K18??29K19??G2911??????·??¨??OK?????±??°é???ì???±??????????C523A”??”????R501?ù??????????????×é??????????×é????????????2CK75D????????????????????????×é????????????????C523A??????????????R501?????????í??×é????????????C523A????????????R501?????????????¨2???? 24?? CN??12?ú???ú?ú??G2502??G2911B?????????¨??OK???ì?±??°????¨3??·?·¨???í?? 25?? NC??6?ú????±????????????¤?±???????÷·?×é????R123????1K??C125????0.1UF?? 26?? G2966B?????????÷????VGA???????§?±?????±??OPT0?÷??81??OPT1?÷??87?????è??????×??????? 27????????NC??6?ú???????±??±?????10K??×è??C810?????ü??????·????????????????±???¨STR??S6709?????ó??????D809??D815?ü???¨×??????????????????????ü?????? 28??G2967A?ò°é????·??é?????????????????±????
?ü??°é????·??é??Z889?????????ì?é??·??é????????óé???????????ù???????ù?÷????????·????????ü?? 29?? NC??6?ú???????????????????????????ò??????L442?????????????????ü??L442?¨TLN3063????????