Post by eric on Oct 30, 2017 4:08:55 GMT -5
Changing caps didn't work for me. I also exchanged the capacitor close to the heat-sink on the 'Power Block' (no schematic in manual - see attachment). The beamer failed with coloured lines after insertion of a Chinese lamp. Later on it didn't start at all with both lamp/cover and temp/fan leds lighting up constantly -> service manual says 'electrical failure'. I noticed all major supplies didn't reach their normal value so it had to be primary (before transformer) and found R2136 on G-board to be defect - the largest value in the series tree. Possibly the Chinese lamp asks a little more current and the supply raises primary voltage to compensate putting this (tiny smd) R under stress...
Now what worries me a bit is that all 6V alu caps on the computer board (C) are not flat. I assume they were flat once but reacted to some over-voltage. The beamer seems to work correctly though having survived at least six or so starts/shut-downs.
Hope this has helped someone ;-)
Now what worries me a bit is that all 6V alu caps on the computer board (C) are not flat. I assume they were flat once but reacted to some over-voltage. The beamer seems to work correctly though having survived at least six or so starts/shut-downs.
Hope this has helped someone ;-)
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