Question about Kenwood KDC-MP2035 CD Player
When there is no sound from an car audio in-dash receiver, FIRST be sure that all connections are GOOD!!!. Incorrect DC conditions affect many units by muting the audio output., so check ... a mistake (often a short circuit or short to chassis in the speaker wiring in a power up condition) has often been made at the deinstall or install under way stage, in that a in a bad condition may result a “no go” situation, that can blow the units audio output IC(s).
Most high power BTL output stages present in a particular way. This can help us to identify a problem with the operation of the device. Whilst the unit is still in the car, measure the voltage on each of the speaker outputs with a multimeter. If they do not appear to be at approx 6-8 volts range, then the output chip(the chip with a heat sink tab secured by 2 screws about *----------* far apart), may have blown. Open the unit up and you can often see this "blown" chip often as
NOTE-----NOTE-----NOTE-----This is an expert type repair to remove an output chip form a modern in-dash unit. A lot of energy(power) is focused in this area, and mistakes made.... usually result in more "blown" replacement parts. If you have NOT done this type of repair work before, GET A CAR AUDIO DOOOD to give you a quote for the repair. It is better for him to do the job for you, then you get a warranty also. Just remember that some output chips can be as much as $80 to replace, so experts attention is needed to find and restore a faulty part replacement at this level. Be sure to use the EXACT replacement part from the OEM(original equipment manufacturer) right down to the brand of chip WHERE YOU CAN to avoid any extra complications from the part being incorrectly spec'd for the job and still not working when you install it.
Posted on Dec 28, 2007
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