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ALLIED RADIO D-140 141 SCH

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
46.0 KB
Page
2
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    ALLIED RADIO D-140 D140 141 140
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
Altec Lansing MX 5021 doglott / "pattog"
Sziasztok,

MX 5021-gyel van valakinek tapasztalata? Ugy nez ki, hogy 10+ ev mukodes utan megadta magat:

 - a kontroller vilagit, tudok "hangerot" allitani rajta, de
 - tekeresnel csak pattogo hang jon a hangfalakbol,
 - hang egyaltalan nem jon belole, ha a jack kabelen rakuldok barmilyen hangot,
 - a kontroller reszt szetszedve nincs puposkondi, vagy mas, gyanus IC
 - a melynyomot (illetve az erosito reszet) nem szedtem szet me'g

Merre erdemes indulni? Par helyen azt irjak, hogy az ST L7809CV es a JRC 7909A IC-ket erdemes kicserelni. Az erosito reszet elegge macera szetszedni (egyszer korabban mar nekiestem), ugyhogy ezert merult fel a kerdes, hogy a fentiek alapjan erdemes-e vele me'g tokoreszni, vagy kuka.

Koszonom,
-w-
Schneider TEAM862RC teljes hangerővel indul
Sziasztok Schneider TEAM862RC HI-FI-vel van problémám A hangerő bekapcsoláskor teljes hangerővel indul. Egyébként, hogy működik alapban a hangerő, memorizálás? A gépen lévő kapcsoló sor alsó sávja nem működik. Ezt mondjuk valószínűleg meg tudom oldani. Előre is köszönöm a segítséget, sziasztok
repair sony amplifier str-de254
Want to share: Have downloaded the schematics from this forum to help repair the amplifier of a friend. Turned out that Sony decided to route the earth through the chassis, even the earth between the various supplies. When one takes the main board out of the chassis and switches the amp on, there are up to 20 volts difference between the eart (and hence reference) of the pre-amps and the main amps. Luckily the amp goes into protection but from a design point of view it is not nice to rely on screws and aluminum face plates to conduct up to 0.2 amps of current from one supply to another. What I did is solder wires to every eart point and connected them on the main board to make it stand alone and not rely on conducting current through the chassis anymore. Bad design, simple repair but took some digging in the schematics to find out what exactly was going on!
Panasonic SA-PM24 mini hi-fi távirányitó probléma
Sziasztok! A cimben szereplö mini hi-fi "REMOTE2" feliratot jelez ki.A távirányitóval nem lehet vezérelni.A tulaj elmondta,hogy ö állitotta át REMOTE1-böl REMOTE2-be,mert más készüléket is szeretett volna vezérelni.Átolvastam a használati utmutatót,az ott leirtakat megprobáltam,de nem sikerül vissza állitani REMOTE1-be. Ha valakinek van ötlete,kérem segitsen!Elöre is köszönöm4""
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