Question about Kenwood XD-A55 CD Shelf System

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Kenwood Allora XJ7M

No Audio but have power.. 4 pcs. audio equipment
try to change the amplifier transistor D2250. But no luck at all. Pls help TY in Advance....

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Fisher tuner rs 881


Fuses blow when there's an overload. This is often caused by a short-circuited transistor or IC. Fuse blowing is more common in Amplifiers rather than a Tuner, where it is the power transistors that have failed. If it is a Tuner that's blowing the fuse then look to the power supply section for the faulty device.

Jul 15, 2013 | Audio Shelf Systems

2 Answers

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If you hear a very high pitch hissing sound coming out from one channel then probably your amp final is gone, in that case you will need to work at component level to fix it

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Aiwa cxna115 - trying to jack-in Belkin stereo cable for Apple IPhone so I can play through stereo speakers. Should I be jacking into video aux on aiwa or the jack next to it? Neither seems like a good...


Hi!
You can play audio equipment like turntable, MD player, mobil phone ( headphone output). You must connect the equipment to the Video/AUX jack, Press Video/AUX then play the connected equipment.

Jan 01, 2013 | Audio Shelf Systems

2 Answers

Hi, my sys was working fine then 2 cables of one of the speakers came off by accident and now I can't get any sound at all to any ok the speakers I plug all right but I only get sound al the headphones...


Some of the new systems have a separate headphone amplifier chip. In that case when your wires came off , they must have shorted a second damaging the output amplifier. The protection circuit turns on disabling both the channels . On Sony systems a warning display comes on and the stereo goes to standby mode till the fault is fixed .

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hello it sound like the output transistor could be the problem also check any capacitors for swelling and any dry joints round the transistor
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7 Answers

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Hi, i had the same problem with a panasonic player, when you see the code F61 in the screen it is because the audio output IC is defective,change that and the set will work perfectly. hope it work.

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2 Answers

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This is error code which system control detected either power irrgularities or dc voltage is detected from the speaker out put line.This fault we have noticed that both of them appears same time also.Pls change Amplifier ic TDA8920 and C1740 transistor and 27V1w zener diode.Transistor and zener diode is for voltage regulation and amp ic if the dc detect is active.Usualy change this three components same time.(this all is in power amp section)

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2 Answers

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Hello....
Isolate problem by disconnecting Amplifier ic (RSN),if f61 still appeares after disconnection of RSN ic ,than check voltage supply rails ,may be one of them has irregularities.
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