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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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So I took apart the case of the Bose so I could clean and lube the
laser assembly. Also used some canned blow off gas to blow any dust out of the area between the laser and the underside of the lens. After reassembly the player worked beautifully. The one particular CD played right off the bat. But after swapping it or another CD, which also played, and then putting the stubborn CD back in, it refused to play. I noticed that when blowing out the laser assembly the lens would move down because of the pressurized gas blowing between the lens and laser. So I pressed down on the lens and tried the CD again. Worked great. After stopping the player and re starting the CD wouldn't play. Pressing down the lens carrier on the left hand side of the lens carrier and then trying to play the CD works. After stopping and then starting the CD won't play. But then pressing down the lens carrier on the left side makes the CD play again. Anybody have any guesses why this is happening? It looks to me like the lens carrier is just suspended by 4 spring wires. But maybe there is something else that might be dragging. Anybody know how the things are really made? Thanks, Eric |
#2
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#3
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Your obviously very LIMITED experience.
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#6
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On Wed, 03 Jan 2018 15:34:27 +0000, Baron
wrote: prodded the keyboard with: So I took apart the case of the Bose so I could clean and lube the laser assembly. Also used some canned blow off gas to blow any dust out of the area between the laser and the underside of the lens. After reassembly the player worked beautifully. The one particular CD played right off the bat. But after swapping it or another CD, which also played, and then putting the stubborn CD back in, it refused to play. I noticed that when blowing out the laser assembly the lens would move down because of the pressurized gas blowing between the lens and laser. So I pressed down on the lens and tried the CD again. Worked great. After stopping the player and re starting the CD wouldn't play. Pressing down the lens carrier on the left hand side of the lens carrier and then trying to play the CD works. After stopping and then starting the CD won't play. But then pressing down the lens carrier on the left side makes the CD play again. Anybody have any guesses why this is happening? It looks to me like the lens carrier is just suspended by 4 spring wires. But maybe there is something else that might be dragging. Anybody know how the things are really made? Thanks, Eric Look for debris between the lens carriage and the magnet on the side that is sticking, or the suspension is twisted and its rubbing. I'll check for debris with a magnifier, thanks. Am I correct in assuming that the lens assembly is only supported by the 4 wires? That there are no other suspension components that could be getting stuck? Eric |
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#8
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