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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Stereo control button problems
I have a stereo which also has a radio and builtin CD changer. If I
hit the on button the CD changer draw opens, but then I cannot make it change CDs and the CDs will not play. I can only listen to the radio if it is off and I turn it on by selecting the choice between AM/FM. I am sure it cannot be fixed since it cost around $100 around ten years ago. I was just wondering what went wrong? Is the "microchip" that controls it corrupted? Are there "electronic leaks" caused by the age. Just wondering if anyone had some thoughts. Thanks Tom |
#2
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Stereo control button problems
wrote in message ... I have a stereo which also has a radio and builtin CD changer. If I hit the on button the CD changer draw opens, but then I cannot make it change CDs and the CDs will not play. I can only listen to the radio if it is off and I turn it on by selecting the choice between AM/FM. I am sure it cannot be fixed since it cost around $100 around ten years ago. I was just wondering what went wrong? Is the "microchip" that controls it corrupted? Are there "electronic leaks" caused by the age. Just wondering if anyone had some thoughts. Thanks Tom Bad drawer position sense switch ? Bad laser home switch ? The system control micro will often get confused and stuck in a loop, if some expected condition is not flagged to it, even if the condition is apparently physically met i.e. the drawer may appear to be fully open, but if the system control micro hasn't been 'told' that it is, due to the sense switch effectively not closing because its contacts are tarnished, it may never go back to monitoring the front panel button matrix for the next button to be pressed. Although system control micros due occasionally go faulty, it is fairly rare, and in my experience, most problems that you immediately blame on them by instinct, turn out to be caused by some simple external problem, such as a bad switch. Arfa |
#3
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Stereo control button problems
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#4
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Stereo control button problems
That fixed the problem. I opened the CD draw and pressed or pushed
whatever thing appeared you could push or press, and then the problem disappeared. I am not sure if it was a switch or not. Thanks Tom |
#5
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Stereo control button problems
wrote in message ... That fixed the problem. I opened the CD draw and pressed or pushed whatever thing appeared you could push or press, and then the problem disappeared. I am not sure if it was a switch or not. Thanks Tom If you could see it and it moved, chances are it's the switch. Wouldn't hurt for you to squib a spot of good quality switch cleaner / lubricant in it, and then 'work' it vigourously for a few seconds with the tip of a screwdriver or whatever you can get in the gap to push it with. Glad you got a result. Arfa |
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