| Àâòîð |
Òåìà: Ðåìîíò áàñîâîãî êîìáèêà SoundKing SB300.Ïîìîãèòå ïîæàëóéñòà.
Âðåìÿ: 26.10.2012 18:04 |
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Vladimir Epiphone SG Special 
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Äîáðûé âå÷åð! Òîâàðèù íåäàâíî ïðèòàùèë áàñîâûé êîìáèê SoundKing SB300. Ñõåìó ÿ íå íàøåë, âèäèìî êèòàéñêèé, - ïðèøëîñü ðèñîâàòü.  áëîêå óñèëèòåëÿ ìîùíîñòè ñãîðåë ðåçèñòîð (R28) äî òàêîé ñòåïåíè ÷òî ïîä íèì âûãîðåëà ÷àñòü ïëàòû, íà êîòîðîé áûë íàïèñàí íîìèíàë... Ïîèñêàë â èíòåðíåòå àíàëîãè÷íûå ñõåìû è íàøåë ñõåìó óñèëèòåëÿ Fender Squier 15W. Ó SB300 çàÿâëåííàÿ ìîùíîñòü áûëà 35 Âò. Ñõåìû ïðàêòè÷åñêè ñîâïàäàþò, îòëè÷àþòñÿ òîëüêî ìîùíûå òðàíçèñòîðû è íîìèíàëû äåòàëåé îáðàòíîé ñâÿçè. Ñõåìà óñèëèòåëÿ ìîùíîñòè ñêâàéåðà:   ñàóíäêèíãå âñå òðàíçèñòîðû ðàáî÷èå! Q7 è Q8 - SD2058 âðîäå (àíàëîã ÊÒ817Á, òîëüêî öîêîëåâêà îáðàòíàÿ), ìîùíîñòü - 25 Âò. Ðåçèñòîð îáðàòíîé (R26 )ñâÿçè 47 êÎì. Òàêæå îòëè÷àþòñÿ íîìèíàëû êîíäåíñàòîðîâ âîêðóã íåãî, ïðèìåðíî â 2 ðàçà, ëèáî áîëüøå, ëèáî ìåíüøå. (ñõåìó çàáûë íà ðàáîòå). Äîðîæêè âñå õèëûå. Äàæå ïðè òåìïåðàòóðå 240 ãðàäóñîâ - áûñòðî îòâàëèâàþòñÿ... Ïðèõîäèòñÿ ïîäïàèâàòü ïðîâîäêè.  Ìó÷àþñü íåäåëþ.  íà÷àëå íàøåë ñãîðåâøèé òðàíçèñòîð Q5. È òî, òîëüêî ïîñëå òîãî, êàê óâèäåë íà îñöèëëîãðàôå âîçáóæäåíèÿ. Ïîñëå åãî çàìåíû è çàìåíû ñãîðåâøåãî íàãëóõî ðåçèñòîðà R28 - âêëþ÷èë óñèëèòåëü. Âûõîäíàÿ ìîùíîñòü ìåíüøå Âàòòà  Ïðîáîâàë èãðàòü îáðàòíîé ñâÿçüþ - ïàðàëëåëüíî R26 ïîäïàÿë ïåðåìåííèê íà 100 êÎì. Ïðè ñîïðîòèâëåíèè 147 êÎì óñèëèòåëü ñòàë ðàáîòàòü ÷óòü ãðîì÷å.Ïîäñêàæèòå ïîæàëóéñòà, ãäå ìíå êîïàòü äàëüøå? 
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| Àâòîð |
Òåìà: Re: Ðåìîíò áàñîâîãî êîìáèêà SoundKing SB300.Ïîìîãèòå ïîæàëóéñòà.
Âðåìÿ: 26.10.2012 18:17 |
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Ìîñêâà Strat, ASAT, SG, Takamine 
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akTTep , êîïàòü íàäî íà ôîðóìå "ñîçäàåì ñâîèìè ðóêàìè", òàì ðåìîíòåðû ñèäÿò) | |
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Strat, ASAT, SG->Budda-> Cmatmods Signa Comp-> Zendrive->OCD->Fulltone '70 -> MXR Phase 90-> T-Rex Tremster-> RC Booster-> Strymon Brigadier-> Strymon Blue Sky// TS-808->BJFe Folk Fuzz->Wampler Plexi Drive-> Ibanez Flanger->EHX Pulsar->Malekko 616
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| Àâòîð |
Òåìà: Re: Ðåìîíò áàñîâîãî êîìáèêà SoundKing SB300.Ïîìîãèòå ïîæàëóéñòà.
Âðåìÿ: 26.10.2012 18:28 |
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Vladimir Epiphone SG Special
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Ñïàñèáî!!) | |
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