Question about Hitachi 55PMA550 55 in. HD-Ready Plasma Television

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Hitachi 55PMA550 I have a Hitachi 55PMA550 monitor linked to a skybox. The Hitachi goes on into standby mode on power up, I then use remote to start the Hitachi, the standby light goes green (start mode) & picture comes on in 3-4 seconds mormally. But now after 1 second (without picture) Hitachi goes back into standby mode of red light. I can hear sky tv sound (Hitachi linked thru sky to sound) and checked all cable connections, they are ok. Any advice would be most appreciated, thanks.

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premtech
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SOURCE: I have a hitachi 55pma550

It's most likely the smps. You'll first need to check voltages at CN63, pin #1-(+5v), 3-(+3.3v) and pin 8-(+6v) Also check CNPPS, pin 1-(+30v), 4-(+5v), 8-(+12v), 12-(+10v) absent these values and the power supply is clearly the problem.

Posted on Jun 30, 2011

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