JudyP - 1 hour ago »
Hi Johnway, did you phone Humax Support or email? How did they come to the decision of offering a replacement? How long had you had the HDR 1000S? I've had mine 5 years.
I have been talking to a friend who thinks it might be a capacitor, either in the power supply of the main board. I have absolutely no understanding of this but would be interested in comments.
Thanks
Your friend is right, as power supply eloctrolytic capacitors of poor quaulity are often an issue (especially those from one maker (Capexon). One Humax box did use these (Foxsat-HD). The internet has many links to cheaply replace these - Early Sky-HD boxes made by Thomson (no connection) had the same issue. However all the affected boxes boxes have a external power supply which delivers 12V DC to the box are effected with all the capacitors used to provide smooth DC to the box are external and easily checked by substituting a good power supply from a working box does not solve the issue. Boxes that have this issue are normally ones that convert mains AC inputs to both 5V DC and 12V DC. All the capacitors involved in the conversion from the mains AC input to smooth DC are internal. A swap to to a fully working external power supply would be an immediate fix. Basically a PVR uses two basic voltages (12V for the HDD drive motor and 5V for the electronics. 12V comes from the external power supply and is a seperate connection to the HDD. 5V is a different connection. The problem is likely connected to the 5V power rail that powers the HDD sata controller that could well be a resistor issue. A resistor a resistor is a linear device that reduces the voltage according to ohms law by the current passing through it be it AC or DC. AC current is specified by it's RMS value (Root mean square). If you connect a DV voltmeter across a 1 ohm resistor passing 1 amp DC it will measure 1 volt. The same voltmeter designed set tomeasure ac (RMS) voltage will record 1V, In both cases the power generated in the resistor is voltage times voltage - 1 watt.
The situation with an ac circuit with inductance and capacitance is totally different.
A G2 box should work with suitable convertors from a car battery supply.