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Post subject: MDP-V9K service help? Posted: 18 Nov 2015, 18:52 |
Hardcore fan |
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Joined: 23 Sep 2003, 18:14 Posts: 1391 Location: United States Has thanked: 39 times Been thanked: 21 times
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I was given this player, which I've been told is one of the few Sony consumer models really worth having, by an acquaintance. In addition to an elaborate set of karaoke functions, it has AC-3 output, and PAL/NTSC VCD playback!
The first problem I encountered was that it would not load/unload. The belt had become flabby, so that the motor would spin but not move the tray mechanism with any force. As a result, the player would shut itself back off in short order. I was able to replace this belt with a SCQ4.6, although this is not quite as heavy as the original. Maybe SCC4.6 would be better? In any case, it loads & unloads now.
_________________ MUSE decoder information and user guides LD player connexion guide
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publius
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Post subject: Re: MDP-V9K service help? Posted: 21 Dec 2015, 02:23 |
Hardcore fan |
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Joined: 23 Sep 2003, 18:14 Posts: 1391 Location: United States Has thanked: 39 times Been thanked: 21 times
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A-ha! There is a place on the main board where a transistor appears to have, for want of a better term, fallen out. This is marked as Q709, which I see by the schematic to be part of the Focus Coil Drive circuit. I still need to put an ohmmeter on the ribbon cable, to check continuity, but I'm guessing that simply resoldering this transistor might fix the fault. Perhaps I should go ahead & buy a new 2SB1565, though.
UPDATE Continuity on the focus coil checks good, although the ohmmeter doesn't move enough current to deflect it. At this point, I have no reason to think that, when I replace the transistor (hopefully tomorrow), I won't have full operation immediately.
_________________ MUSE decoder information and user guides LD player connexion guide
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