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LEMBECK BRAUNSCHWEIG LS648W TUBES RADIO SCH

AUDIO - SERVICE MANUAL
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AUDIO
SERVICE MANUAL
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    LEMBECK LS-648W TUBES RADIO LS648W LS 648
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Relevant AUDIO forum topics:
Harman Kardon sub standby hiba?? MEGOLDVA!
Sziasztok! Auto standby-al lenne kérdésem. Adott két harman subláda, az egyik kb 10-12 perc után kapcsol ki, a másik viszont 30 perc után. Szokványos ez a jelenség vagy orvosolható-e, mi szabályozza a auto standby kikapcsolási időt?
Need schematicfor Soundcraft Spirit powerstation1200
Hi, anybody having schematic for Soundcraft spirit powerstation 1200.I tried the sites but the schematic is for spirit powerstation600. Kindly help me find schematic thanks 
Rajan Paliwale.
Bang & Olufsen Icepower200ASC erősítő modul nem szól
Sziasztok!

Adott egy ilyen icepower200asc erositőmodul, úgy került hozzám, hogy a 4db vegfok FET közül az egyik rossz volt. Csere utan is tönkremegy.
A tápok megvannak, 47V, +/-12V a műveleti erősítőknek.
Rajzot kimondottan ehhez a modulhoz nem találtam, csak az Icepower200ac modulhoz.

sok alkatreszt teszteltem benne(ellenallasok, kondik, diodak, tranzisztorok), jónak tünnek. 

Most a fet-ek nincsenek rajta, igy tudom mérni a gate lábra kerülő feszültségeket. Valamiért nem tetszenek az értékek

Javított valaki ilyet, van valami tapasztalat?

udv
Tom
Keresek Panasonic Hifitornyot SA AK 48 alktrésznek
keresek Panasonic SA AK 48 hifiben proceszort
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