Question about Sony DAV-S400 System
Please can you help our DVD player seems to have lost its sound and keeps saying that the headphones are on . We have tried everything we can but cant seem to turn them off and bring back the sound .
We have lost our manual so are not surwe what we should be pressing
Hi U need to re-solder the headphone socket that connects to headphone jack at the front of the DVD player, once u have done this, it will work i had the same problem for ages till i found out the solution good luck
Posted on Sep 08, 2008
I can confirm that this seems to be a commen fault. I have just fixed the same problem on a friend's machine, There seems to be a number of dry solder joints on the power board - the one that the speaker connectors are attached to. The big smoothing capacitor on this board was loose, but the 'H.P.' related displays were solved by resoldering all the joints on the base of the headphone connector plug. Follow the lead from the front panel headphone socket back to the power board and you'll find it.
You will need to remove the 2 screws from the back panel either side of the speaker connectors, also the ones holding the metal screening enclosure halfway down this board in order to ease it away. Also disconnect the connector from the main power supply board on the left. The board can then be inverted so you can get at the solder side. There is also a copper plated sheet under the board: this is stuck on with adhesive pads and can be easily prised off. Carefully remake the solder connections with a small soldering iron. I also remade all the relay connections as well, as it seems all the larger-wired components didn't seem to be particularly well tinned. You'd think that somebody like Sony would have got the hang of something as basic as soldering by now.
I just wonder how many people have bought these, and other Sony stuff, over the years only to have them fail. Have Sony ever acknowledged their culpbility in such shoddy work, or quietly just let the hapless consumer pick up the tab?
Posted on Nov 08, 2008
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Posted on Jan 02, 2017
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