Service manuals, schematics, eproms for electrical technicians
POWER-ACOUSTIK LT-720 SCH
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(PDF)
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324.6 KB
324.6 KB
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1
1
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Looking for similar power manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar power manual?
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- Also known:
LT-720 LT720 LT 720 POWER ACOUSTIK
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Relevant AUDIO forum topics:
Sziasztok!
A címbeli antennaerősítőben elégett az LM2594N-12 táp IC. Kérdésem, hogy hol lehet beszerezni vagy mivel lehet helyettesíteni. Ez egy DIP8 tokos 12V 0,5A-os step-down kontroller, ami 24V dc-ből állítja elő a 12V-ot.
Esetleg ha lenne hozzá kapcsolási rajz nem lenne hátrány, mert a panel is megégett a környékén.
Köszi.
Sziasztok!
Van nálam egy ZECK A-200 (made in WEST GERMANY) erősítő.
Mellékletben a rajz!
Igaz egy MJ15003 párossal kevesebb van benne.
Mert ez a 2x100w-os
A lényeg még mielőtt nekiállok úgy igazából!
A hibajelenség....
A legkisebb hangerőnél lehet hallani némi magas hangot.
Ha feljebb tekerem a hangerőt, akkor egyből a védelem aktivizálja magát.
Eddig amiket átnéztem:
Tranzisztorok egyesével kiforrasztva átnézve. OK!
A tápnál még nem mértem úgy igazából feszültségeket, de a mi feltűnt az a PUFFER kondik (4700uf 63v)
kisütve 680kohm és 1,5kohm.
Ezek szerintem kuka.
De ha valakinek esetleg van egyéb ötlete amin végig kellene mennem mint mérések, azt szívesen elfogadom.
+ Van a 0,27ohm az MJ15003 emitternél.
Oda mos per pillanat 3w-os van rakva. Így kaptam.
De ha jól tudom akkor legalább 5W!
Előre is köszönöm.
Hi to all. Unit arrived dead with no power. The problem is with switching power supply. I checked most of the parts, no faulty found. Unable to check PWM ICs. To determine which one has the problem, Service Manual is more than important and necessary. I would appreciate if someone of you can help me find it or send it to me.
Thanks in advance for your kind attention and help.
Regards from Greece,
John
Hello All
please I need technical documents for powersoft K10 audio amplifier plz
thank u
please I need technical documents for powersoft K10 audio amplifier plz
thank u
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