Service manuals, schematics, eproms for electrical technicians

GIBSON EH125

AUDIO - SERVICE MANUAL
Type: (PDF)
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364.2 KB
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1
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    GIBSON EH-125 EH125 EH 125
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
STK4036X helyettesítése, akár helyére építhető végfokozat tervezése.
Sziasztok. Adott egy Grundig v303 erősítőm. 2db STK4036X található benne. Már nem gyártják nem tudom beszerezni. Építeni szeretnék a 2db STK helyére 1-1 panelt. Milyen kapcsolás lenne ide megfelelő? Csatoltam képet az erősítőről. Előre is köszönöm. Üdv: Csady
Vénembereknek, bakelitimádóknak LENCOCLEAN recept, lemeztisztító
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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!
Orion HS-282 szétszerelése MEGOLDVA!
Kedves Kollégák!

Segítsetel már, legyetek kedvesek!
Hogyan lehet kiszerelni egy HS-282-ből a magasat és közepet sérülés nélkül??? 
Olyan, mintha hátulról be lennének ragasztva...

Előre is köszönöm az építő jellegő hozzászólásokat, biztatásokat (ne add fel!!!, hajrá!!!, nosza!!!, stb.), mert egészen elkedvtelenedtem a látványtól...

stonhy
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