Question about Televison & Video
I have a WS48511 with the green blinking light - no power problem. I read your article regarding the DM Board repair dated 7/12/07 and downloaded the service manual from servicemanuals.net. The graphic in the service manual shows 7 capacitors not 4 in your article. Do I replace all seven with the same Panasonic 10,000 hour high temp capacitors (part number: P13119-ND )? You can email me at firstname.lastname@example.org Thanks.
If you do not already know where your problem is then Check for 12 volts DC (AC-off detect) at pin 3 of PC9A21, if missing replace PC9A21 part # 268P058020 on the Power PCB. LED does not blink at plug in. Check for 5-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P089010 on the Control PCB. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds . LED stops blinking after 70 seconds of plug in but will not power on. Check for 4.7 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D587002 5. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 935C978002 . Also if you can do a self diagnosis test by pressing the device and menu for 5 sec on panel of set and read the error codes.
Posted on Dec 10, 2007
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Posted on Jan 02, 2017
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