Question about JVC FS-SD990 CD Shelf System
I have a JVC FS-SD990, when I push power it starts to
power up, lights flash then it turns back off. The clock
flashes as it stays in the plug in the wall mode. Any suggestions?
I have heard that it could be a fuse, but where would that be located?
you probably have some sort of overheating or short on the internal board - is it still on warranty? if so they will fix at no charge - if not, a local repair shop should be able to correct the problem but it may cost as much as $150
Posted on Jan 26, 2008
SOURCE: JVC HR-S9500U
OK, found the problem. Another website had the same question on the HR-S9600U, the 9500's replacement:
I checked my vcr, and, sure enough, there was a sort of clicking sound coming from the drum area immediately before the unit would go into "Auto" mode. I removed the complete drum assembly, and tore into the little gearbox, and found the two black, plastic gears with inside pinions that drive the metal screws to change the video head position had each cracked and were slipping on the shafts. This caused the gearbox to bind up.
Using a jeweler's screwdriver, I roughed up the metal shaft and the inside of the gears where they slip onto the shafts, and glued them on using a two-part epoxy. I then re-assembled it all, sorta setting the screws about two turns after their contact with the base of the upper drum. Now, upon power-up, the drum adjusting motor toggles one direction, then the other, and the unit stays on. Playback seems OK.
So, there you go. Yay me....
Posted on Dec 28, 2008
Hi and welcome to FixYa,
Almost always, when an electronic device/equipment fails when powered with and by a generator, it is the power supply unit (PSU). The PSU circuitry expects a fairly constant/stable power source (120 or 220). The output of the generator tends to fluctuate especially under varying electrical load. Additionally, the AC frequency (60Hz) of the generator's output also tend to vary which most PSUs don't like. A noteworthy point to consider is that the generator is floating electrically, its output has no reference to earth/ground.
If you are considering a DIY (do-it-yourself), foremost to inspect would be the PSU particularly the regulator transistor and determine if it outputs +5 and ~+135 VDC. Another to check would be the HOT (horizontal output transistor). If when the TV was used powered by a generator, there was considerable vertical rolling, the vertical deflection IC would also be a suspect.
A friendly reminder, exercise caution when repairing TVs. It stores up EHV (extremely high voltage). It would be to your advantage to reference a service manual (JVC AV-36D303) or at the very least a schematic diagram with voltage readings.
Good luck and Thank you for using FixYa.
Posted on Jan 05, 2009
SOURCE: my tv won"t turn on.
1. Hold [menu] and [vol-] button on the side of the TV
2. while holding these, press the [power] button on the side of TV (NOT remote)
3. blue light comes ON and stays ON
4. wait 10 seconds then let go of [menu] and [vol-]
5. wait another 30 seconds and some type of picture should appear
I think this is right. I got it from the JVC call centers guys so sorry if I missed or messed up a step.
Posted on Apr 29, 2009
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