Question about Sharp CD-BA200 CD Shelf System
Disconnect your speaker boxes. If the "protect" error goes, then the speakers or wires may be at fault. If the error remains, most likely the audio output IC is blown.
Posted on Oct 04, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 28, 2014 | Sharp CD-BA250 CD Shelf System
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.
Jul 11, 2011 | Sharp CD-BA250 CD Shelf System
Jun 07, 2010 | Sharp CD-BA250 CD Shelf System
Jun 05, 2009 | Sharp CD-BA200 CD Shelf System
Feb 21, 2009 | Sharp Audio Players & Recorders
Nov 20, 2008 | Sharp CD-BA250 CD Shelf System
Feb 23, 2008 | Audio Players & Recorders
596 people viewed this question
Usually answered in minutes!