2024年04月29日

海尔HP-2990(8844机芯)维修模式菜单调试(1)

2003 年 11 月 19 日
 

HP-2990?¨8844?ú?????????????????÷???????ú????29F66 25F99  29FA  29TA  34F99  29F18  2
9F98  HP-3458  HP-3458D  HP-2999  HP-3408  HP-3499  HP-2969  HP-3499?????ú??×é????CPU??WH2000???÷??????TDA8844-2Y??°é????TDA7922????????TDA8351Q????????×÷·?·¨1???????????ú?ó??°????¨?????÷???°P.STD?±???°S.STD?±???°CALL?±???°POWER?±×é???ü?òר???????÷???°?????±?ü?????????????????±???ó????±????°±ê×??±????????????±???Y/C·?????????±???TDA9178??????±???TDA8844???ó??????????±??¨BT1??????×?AFT??±???°é??????±????°±ê×??±????????????±????·???ù??±?????????2??°??°MNUE?±?ü???????????·???????±???·?????ó?????????????÷???±?¨???????????????????????°???ó?????????????????????????±?????????è?????±?????????
à?????÷???§????????°??°CH +/-?±?ü?????÷????????????4??°??°VOL +/-?±?ü?÷???±?°???????ó????5??°??°0?±?ü????????????????????6??°??°1?±?ü????????????°???·???7??°??°AV/TV?±?ü??????????8??°??°POWER?±?ü???ú??9??°??°MUTE?±?ü?
???/????????????10??°??????ü??????????????11???±???????¤?§????????????ROM???????????????·????1???????÷?? IFADJ<
o:p>???????? ?÷??·??§?±????AGCRFAGC????0 – 3FH17VCO?????????÷??0 – 53YDLY????????TV0 – 84?÷??·?·¨???÷??RFAGC?????????????¨·ù?????????÷??????????RF AGC???????????÷????
?????????±????????????????0 – 5·?±???????58.75MHz??45.75MHz??38.9MHz??38.0MHz??33.4MHz??33.9MHz???÷??Y??????????0 – 8·?±???????0ns??40ns??80ns??120ns??160ns??200ns??240ns??280ns??320ns??AV·?????×÷???????±???è?¨??160ns??2???????§?? GEOMETRY???????? ?÷??·??§?±????PSL/NSL???±??????0 – 3F1 HFPVS/NVS??????????0 – 3F1 HFPVA/NVA??·ù??????0 – 3F1 HFPHS/NHS??????????0 – 3F1 HFPEW/NEW???í????0 – 3F1 HFPEP/NEP?í??????0 – 3F1 HFPEC/NEC?????§??????0 – 3F1 HFPET/NET????????0 – 3F1 HFPSC/NSC??S????0 – 3F1 HF?÷??·?·¨??2.1 ?÷??S???????ù?????ó???à?????????????????¨×é???×???÷??S???????ó????2.2 ?÷?????±??????????????????±í?????ó???????????????¨????????×?????°??°1?±?ü?????ó????????°????÷?????±?????
????ó???????????????????????§????°??°1?±?ü???????ó???÷?????????????ó????????????????????????2.3 ???¨???±???????????????????????÷????·ù???????????????í???í?????????????§?????????????????????????????í???????¤??2.4 ?????§?????????ù???±?°??50/60????×???·??à??


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