Repairing Euron-320 HDTV VCR Power supply.

The replace blown capacitors with dots on it.

Euron HDTV VCR broken down after 1.5 year usage. All instrument light does not lit up. Some ticking noise on power up. Likely somehow of short circuit. On opening up the case. 3 capacitors will blown. With the tanned marking on the circuit board, likely due to overheat , caused by poor design (as the HD still spins and the heat can be felt from the ventilation slot on standby mode).

After changing the capacitors, the circuit board can still not power up. The small tickling noise can still be heard. Likely the short circuit has not yet found out. On removeing the power supply to the harddisk. Bingo! the unit can now be powered up normally.

With ohnmeter checking, the Zener diode (Someone said not zener, ..I forgot ) guarding the voltage input is burnt as well, causing a short circuit. The diode is removed and the unit works nicely...at least for antoehr 4 months.

Now the harddisk list everthing in it. Um....I forgot to check the ventilation fan.. a small , low power fan rated 0.16A and 5V ~1W. I was so stupid that I miss the non-spinning fan. I replaced th fan and it still does not spin and I suspect the old fan is stuck by dust and burnt the supplying transistor as well (some sort of temp. driven fan).

Eventually, I replace with another old 320G harddisk and plug a 3.3V computer fan (for video card) instead.

Hope it works for another 2 years...