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Did you replace ALL the electrolytic capacitors in the power supply? Generally, whenever there are several faulty components in this part of any circuit, it is a good idea to replace all of the caps as well as checking for leaky diodes and faulty IC regulators.
My guess is that the SMPS still has an intermittent partial fault, which is preventing the unit from staying on. I would recommend that you check the ICs in that circuit, replace as required (if you haven't already done so). These can be 3-pin or 5-pin regulators, but they are voltage rated, so obtain the correct types for this model if you do decide to replace them.
I hope the fault hasn't spread to the microprocessor on the main board - this can be expensive to replace if faulty. I would recommend that you re-check the power supply again - thoroughly. Touch up potential dry solder joints if necessary.
If the unit still misbehaves after all of this; perhaps it's time to consider submitting it to a workshop, get a quote (and a second opinion) on the likely cost(s) of repairs, then you can make a decision afterwards as to whether or not you wish to go ahead and get this fixed for good. It's up to you.
The hard disk hasn't been recognized in Windows because the JVC runs Linux so the drive was formatted in EXT3 which Windows can't read.
Simple fix to recover all your data: connect the disk back to the pc and boot from a Linux Live-CD like http://pclinuxos.com/ In there all you have to do is to copy all the content of the disk to your local disk (PCLinuxOS can read and write securely on NTFS/Windows disks). Or you could just burn them to some dvd's. For the rest: 1 - on the CS pins; 2 - no.
To unlock tray
While the unit is turned off, press and hold the stop button, then press eject the button on the unit. "UNLOCK" appears on the front display panel.
Measure the 5V line on the DVD drive,if to low replace the bad caps in power supply.There is an 22 microfarad elco you can upgarde to 47 microfarad to last longer.
If the 5V line is ok the problem could be the harddisk,this is not traceable without the proper software.
It's for a different model, but it works the same.
In a nutshell, when the "AV/C Tuner" driver request comes up, just cancel the install. Then, it will want an "AV/C Tape Recorder/Player" driver. It "should" install automatically and be instantly recognized. If not, follow the instructions in the guide.
There are also instructions in there for disabling the "Av/C Tuner" every time the deck gets connected. Hope this helps - worked for me! - cliffpro.com
I don't tremember what the fix for this is, but I had it happen to mine. Luckily I had a budget to just take the machine in and have it fixed. It took them one day to fix it and it only cost me $70. if you can afford to just take it in, it would be worth it.
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