Sagem DBox2 Power Supply Problem

[Dean]

I have a sagem 1xi dbox2. The power supply has blown fuses, and is also destroying a mosfet numbered Q1 on the power board.

I beleive the reason behind this is zenner diode D401 on the power supply board which is showing signs of failure.

Does anyone have a schematic of the power supply board or can tell me the voltage and power rating of this diode. The diode has 36C on the side of it.

Regards.

Dean.

[Dean]

I have now fixed the problem, I replaced zener diode D401 with a 36 Volt 1.3 watt zener. I also had to replace the mosfet numbered Q1 on the PSU board.

The box is now in working order. I hope someone will find this of some help.

I would still like a link to some schematics for the Dbox2 incase I get any problems in the future.

Regards.

Dean.