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OK TO START WITH THE INJECTORS HAVE CONSTANT POWE 12V WITH KEY ON , THE PCM SWITHES THE GROUND SIDE TO FIRE INJECTORS, IF NO POWER THE YOU SHOLD BE LOOKING AT YOUR FUESS AND RELAYS IF ALL GOOD ING SWITCH
Check whether the cable from the system to the screen is connected properly and there is not loose contact. Also take the system into BIOS and check whether the same issue is happening in the BIOS screen.Try a factory reset on the screen by pressing the OSD button on the screen.
Switchoff the screen and disconnect all teh cables including the powe cable and press and hold the power button for around 40 sec and now reconnect the cables and try to power up the screen
fot the most part, you have solved your problem (pow bd), The main bd may also need to be replaced as well. The is a signal upon powering up the system. the pow bd communicates with the signal board. The signal bd, also is responsible for ALL of your additional I/O lines. Between the two of these, + a firmware update, i think the tv will be just fine.
I have such iiyama AS4636D monitor. In this day purchase. I have such problem with you. My solution: Desktop pc and lcd power off (230VAC or 110VAC) Power on lcd, after early desktop pc. This moment, when running the pc booting, press and hold you the " + " button. In this moment come in one blue screen. May be running on the sreen short message: check or select input mode: VGA DVI 1 2 . Select your correct cable connection type.
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