Gallery 1740 Trips out my G5
Right I got my formac monitor open by removing the Bezel, it's tricky
but not too hard. The casing is suprisingly flexible and forgiving. The
clips are backed by a double sided tape on all four edges. Start from the top and give the tape time under tension to come unstuck, it will, a bit like a plaster.
Oh yes, unplug before continuing.
Inside there are four HEX #4 (5/64 inch) screws holding the display inside the chassis. These can be removed, on the back side of the panel is the power/controller board. And remaining in the chassis is the Cold Cathode power board (long thin one on one side). This can be unplugged to get more range on the cables. (remember which way it goes in, I use a marker pen over the plug and socket to show me where to put it back) The Controller board has a number of power components. Firstly there are 5 power diodes, they all seem to respond properly under a meter in my screen. There remains one linear voltage regulator LT1117 and two 500Khz Step down switch mode regulators, LT1374. These devices are most suspect for causing the over current draw. Replace them if you can do this with ease. However most regulators have inbuilt protection. So it is also possible that a support component such as a resistor or capacitor has failed causing the other components to operate outside of their intended parameters. I will post some pics of the board later.
Feb 24, 2008 |
Formac Gallery 1740 Oxygen 17.4" LCD...