| Author |
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| Boy447374 |
 Posted: Tue Apr 14, 2009 3:34 pm Post subject: |
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| I checked for bridges on the IC's and I also put the original IC's back in. I even tried two new IC's. There is no change at all. There is something else that is no doubt wrong now. I uplugged the PDKP connector and the unit does not cycle on-off anymore with PDKP disconnected. It just shuts down immediately. I suspect a problem in the deflection board. Can someone walk me through some troubleshooting? I can tell you that I have went through some of the troubleshooting flowchart in the Service Manual and I checked the HOT. Everything I've checked seems okay. |
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| minnie |
| Posted: Mon Apr 13, 2009 7:43 pm Post subject: |
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| Where did you get the IC's? If it was working before you changed them more than likely bad IC's. |
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| jts1957 |
| Posted: Mon Apr 13, 2009 4:56 pm Post subject: |
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| Recheck your soldering for unintentional bridges. Also splashes. |
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| Boy447374 |
| Posted: Mon Apr 13, 2009 8:38 am Post subject: Hitachi 53fdx20b rear projection tv troubleshooting problem |
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| Hitachi 53fdx20b Rear Projection TV had a conversion problem. Symptoms were typical image ghosting. Replaced STK392-110 IC's. Checked resistors. They all checked out okay. Turned unit on and now red power light flashes off-on-off-on ect... Please Help Me. Resistors are fine. |
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