Question about Panasonic SA-HE100 Receiver
The stations are not coming thru to the TV. I can play a video but no tv stations
I had a similar problem. After a nearby lightning strike I lost video to the TV. When the SA-HE100 source switch was set to DVD or TV I lost the TV picture. In my system configuration I send composite video (yellow jacks) to the SA-HE100 from the DVD player, VCR and satellite receiver. From the "TV Monitor Out" jack (yellow jack) the video goes to an RF modulator then is sent to the TV as RF channel 3. At first it seemed the modulator was defective but plugging in another identical modulator damaged the second unit also. This made me look at the amp as the culprit. Curiously, the amp would pass through VCR video without a problem but I didn't know it because of the damaged RF modulator. Whenever the amp source switch was set to DVD or TV the amp would put -4.75V DC on the "TV Monitor Out" jack thereby damaging the connected RF modulator. The repair is relatively simple. The only special skill required is you will need to be able to desolder a 14 pin DIP IC. The damaged component on my amp was IC364 mounted on the board that holds the yellow video jacks. The IC is a JRC 2279D, a 3 input/2 output video switch available from Digikey p/n NJM2279D-ND, $1.50 each.
Posted on Aug 20, 2009
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Posted on Jan 02, 2017
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