Same issue with Sharp Aquos and Panosonic Plasma
by comtech3 - 1/29/09 9:28 PM
In Reply to: LCD & Comcast by ticcer99
I've been a Comcast Technician for 2 1/2 years and I thought I've seen it all. Yesterday we got a memo from our supervisor regarding this problem. It stated a customer purchased a Sharp Aquos and we installed a Motorolla DCH HD Box. The STB remote would not function with the TV on. The tech discovered a feature on this TV (OPC) wich automatically adjusts contrast and brightness to adapt to room lighting. This feature interferes with some set-top IR sensors. The tech resolved the issue by disabling this feature. My last trouble call today was the same issue with a Panosonic TH-58PH1OUKA. I swapped the STB twice and the remote 3 times. Then I noticed that this model has a similar feature as the Sharp, called C.A.T.S. (Contrast Automatic Tracking System). Ok, this is where it gets baffling. The remote functions without a hitch when the feature is ENABLED! Sharp's model has no IR interference when DISABLED. So after 2 hours of troubleshooting I left the customer with a functioning DVR/Remote and a much dimmer picture, because if you manually change the contrast/brightnes, the set automatically enables C.A.T.S. by defult. Panosonic Cust Serv advised me to leave it enabled. There's going to be a hot debate at the shop in the morning on this topic.
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