长虹PF29G88纯平彩电行场扫描电路常见故障分析与检修

?¤??PF29G88?????????????¨?è???·????????·??????ì?????????¨?è???·????????·??????????¨?è???·???????????·?¨?????°?± ?????±?????????????????????¤??·??ó???·?¨???¤??·??ó???????°???????¤??±????÷ ?????°?±???????????????·?¨???????? ?????°??????????±??÷???????±?°????×?????????×é?????????????????·??×÷???????ú?ú?±???????????ú·??¨?????????¤??·??ó???????????·??????????????????·??ó?????????¤??±????÷???????????????????÷±??????????????????¤×÷????????????×è?á???????à????????°??????????¨???÷????????×???????????×??????ú?ú??????????×?????×ó???????????ê???????¨?è?????????????¤×÷?????±????????±????÷????????×é???á??±??????????¨???÷???¨??????????????????±????÷?÷??×é???ú?ú?à?????????????????¨?è??????????????±????÷??????×é?ú?ú?????????????????÷????????????????×ó?????????
?????????????????????????×é?????±?ú?ú??????×ó???????????????? ???°?°??×ó?????±?¤??????????????±????÷???????????????????????÷???¨?ó???????????°?°??×ó????????????·????·×÷?¤×÷????????????±????÷???????????????????????÷???¨?ó???????????·?????????????÷?í?????·×÷?¤×÷????????????±????÷???????????????????????÷???¨?ó???????????·???????????????????·×÷?¤×÷????????????±????÷???????????????????????÷???¨?ó?????????±???????????????????°?????????????????÷°????·×÷?¤×÷????????????±????÷?á?????????§????????????????????????????????????????????????±????÷?????????????????????????????·???????????¨?è???·?????????????????????ù???????¤??°é???????????????????ú???????????????¤?ì???????????ó???????????·???????·???????±?????????????????¤?é?????°?±???????÷±??¤???·??×÷?????????????????????????????????·?????¤?????·?°?????????·???????±??????????????±????÷???????????????????????ù???????ó?????±?????????????????????????????????·?¤×÷????????????????±????÷?????????????????????±?¤??????????·??????????????????????±?????????????????¤??°é?????????
??????ó???????????·?????????÷???¨???·?°???????·???????·???????±?????????????????ú?ó?????÷???ó???????????°?±???÷±??¤???·??×÷?????ú?÷???????ú×????????????????????ú?????????ó????????????±????÷?????????÷???¨???·???????±?????????????·?????????????????·???¤×÷??????????????????????????±????÷???????÷???¨???·???????±?????±???????±???????????????????±???????????°???¨???????????????????????????±?á???¤×÷???????????°??????°ü?????è???·?????????¨???????·???ü???¤×÷???????á???????????????????????????·?????¤?????·???????????·??????×????·???????????????????????·???????÷?????????????????????????ì???±?????á???????¤?ì?????ó?????????????¨?è???·????????·??????????¨?è???·???????????·?????°?±?¨?????±????????????????????????±????????·?????°???¨?????????????????????????????·?????°?±?¨???????????·?????°????×???????×é?????????????????·?????????????·?ú?ú????????????????·??????·????·??????·????????????????
???????ú?ú???????????????????????·???????°?±?¨?????±?????????????????ê?????ú?ú?????????????????°?±?????????????????????????????°???????????????????¨???????·?????°???????????????????°?????????????¨?????à???????????????°?±???????????°?±?????????¨????·??ó?ó????????????????????×?????????????×??????ú?ú????????????×????ê?????¨?è?????????¨?è???·??????????°??á??????????????·ù???????????????????ú?????????ó???ì???±?????????¨?è???·??????±??·???·???????????????????????¨?è???·?????????á·??ú±?????????·????¨?è???·???????ó???????¤×÷???????×?·?¨???????????????????????·?????ó???????????????????????????à?????ó???ò??????°??ì?????ò?????????????·???????????·?????????¨???????·???????????·????·??????·??????×????????????????????·?????????¨???????·???????????·????×???????·??????·???????±?????????????????????·?????????¨???????????????????????????????????¨???????·???????????·????×???????·??????·???????±?????????????????????·?????????????¨?????¨??±???????????·ù???????????????????·???????·???????±?????????ú?ó?á?????????÷???ó?????????°?±??
???????÷±??¤???·??×÷???????????????¤×÷?????ú×????????????????????ú???????ó?????????????÷?í?????·????????·??????????÷?í?????·???????§?????????·?????°???¨?????????????????????×???¨·??ó???·?¨???????±???????????????????°?????·??×é?????????°??????°ü?????????????????·???????¨???????·?????¤???????????·???????????°?????????????????·??????·?×é?????????í???§?????????·????????????·????·?????????¨??·????×???¨?????????°?? ???????????????????±???????????????????°·??ó?ó???¨?????????±?????????·???????????÷????±à×????÷???ê?????÷?í???§???????????????????°???á????????????????×??????????????????????¤???????§??????·ù????·ù?????÷???????????????¨???·???¨???ì?????????????????÷±?????????????°?±???????????·ù±???????×????????????????????±???????????????????°???????°?? ???????????????????×???¨????????·??ó???????÷?????·?????×???¨???????????÷?????÷??????????×????÷?÷???????????????×???¨??×??????
??¨?è????????·?????????????????·???????×????÷?ó????·ù???ó???????¨?è????????????????????????????????????×????÷??????·ù?????????í???§?????????????????í?????·???????±?????????í???§??????°??×?????????????÷???? ???????°?????????±??????????×é????·??ó???·??