Service manuals, schematics, eproms for electrical technicians

QSC RAVE81 RC

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
385.4 KB
Page
17
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    QSC RAVE-81 RAVE81 RC RAVE 81
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
Terta T528-H rádió nem szól!MEGOLDVA
Sziasztok!
Hoztak egy fent emlitett tipusú rádíót hozzám javításra,hogy nem szól!
Mivel nem vagyok egy nagy csőves rádió szakértő így csak annyit néztem meg gyorsan,hogy a csövek vílágítanak(kivülről nézve)macska szem is világit ha hátulról belenézek,de hangot nem ad!
Szerintem a hangerőt is maximumra tekertem/állitottam de semmi reakció!
Merre induljak el esetleges hibakeresés céljából?
Köszönöm szépen a segítséget!
Denon-Heos-AMP HS1 flashes red continuously after a factory reset that fails.
Problem with Denon-Heos-AMP HS1

Cause:

After a factory reset attempt that fails, the following problems occur.
PS
The unit worked just before the factory reset!

Problem:

The device tries to update the firmware automatically (online), but it fails.
The device then flashes red continuously.

According to the service manual, the only option is to load a new factory firmware using a USB dongle.
After many hours of searching the web, I have not been able to find this firmware file.
The service manual refers to an SD (service disk).
The Denon service office does not sell or provide service application software.

I hope for further information/help to solve this problem
Regards Mogens
 
Technics rstr 373 deck visszafelé lejátszáskor leáll és f03-t jelez ki.
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Technics SU8044 sounds distorted
Dear Friends, I am having a problem with the above mentioned amp. When I increase the volume from 0 to a quarter level the sound is OK. If I increase the level above quarter onwards , the sound becomes fuzzy and distorted. I have tried replacing the 2 filter capacitors(8200uf 50v) with 2 (15000uf 50v) caps but it is the same. Can someone give me a clue what can be causing this problem. Thanks Carlos Rajoo
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