Question about SIM2 HT300 Multimedia Projector
When viewing through HDMI, intermittently picture starts to develop several green spots and lines to the extent that it turns blank and signal is lost. If from remote setting is changed to composite instead of HDMI, picture returns. If picture is changed back to HDMI, picture is lost again whilst composite works fine. If after 30 or 45 mins picture is changed to HDMI then it will be fine. Changed and cleaned HDMI cable and sockets but to no avail. Could this be a dry joint?
Is the socket firmly plugged in? In most cases, the cable is not plugged in properly and that's what causes the color problem.
Posted on Mar 01, 2011
SOURCE: My DLP projector SIM2 DOMINO
It is possible that the last time this was connected there must have been an higher input applied than is recommeded so that the input PRE_AMPS were loaded to fail.
You need to check with an signal trace on the input to find if an OP-AMP has failed or the LOGIC switching IC had failed.
Need to test using a signal tester and meter.
Posted on Jul 14, 2011
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