Marantz cd63 repeatedly does not read disc repair |
| Time£º2015-05-29 08:10:24 Source£ºNetwork Author£ºUnknown Clicks£º1227 |
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5xiservice manual download site
+/-10-volt power supplies are two symmetric 9.5 VAC formed by the bridge rectifier, AC 9.5 Volt Output 2 groups each have a glass tube fuse. Measuring + 10 volts, actually only about 9 volt, seem to have a problem, immediately measure the AC output, only to realize there is at one end of the fuse is open, + 10 kV series capacitor voltage depends on symmetry, and hence the low voltage, load capacity. Problems found. Replace the fuse and everything is normal, it's as simple as that. It had a windfall. I checked the fuse and found oxidation that also left a serious,5xiservice manual download site
So I put it off, measuring in the case only with a fuse of the voltage fluctuations, but unexpectedly turned on the power, machine normal reading, playback right away. Surprise I realized that apart from one end of the fuse circuit have already made some time, stores in such cases has been working for a long time. Think before when playing as clean, always felt that sound quality than the original, a bit harsh, but I can't figure out why, now an eye opener. Sure enough, after repair, listen carefully duozhangping often heard the disc, I feel really different. If the fuse is not the only oxidation ultimately leads to voltage drops not read, the machine will be used and didn't know.5xiservice manual download site
Many electronic products appears to be very complicated fault, often sparked by small simple parts, checks must be carefully observed details of symptoms and did not miss any shadiness, will be able to solve them.5xiservice manual download site
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