Question about Optoma EP755 Multimedia Projector

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Only power light will power on for few seconds then flashes.

Plug in turn on main power switch and standby power light flashes. Then press power button and power light will burn solid for a few seconds then goes to flashing again. No other sign of life. Can you help? What is a normal symptom if the main lamp fails to light?

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Does the main lamp light at all? It sounds light a cooling fan failure. If the fan iis not working the the main lamp will not turn on and the power light will flash.

Posted on Jan 08, 2009

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Posted on Jan 02, 2017

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The ink pads are at the end if their service life.


Depending on what type of printer you have:

Procedure 1 We found this procedure to work for the Stylus Photo 1270 type printer, and understand that it also works for the 870 range and even earlier models like the Stylus Color 740. The error is indicated on these printers by all four lights on the printer flashing. Even if you press the power switch on the printer, the lights continue to flash, and the printer does not turn off!
  1. Turn off your printer, ensuring that the print head is at it's home location and locked in place as normal;
  2. Power off the printer at the wall or by removing the power cable, for at least 20 seconds;
  3. When you restore power to the printer at the wall socket or by reinserting the cable, if the lights come back on straight away, the printer's power switch was 'on' - switch it off and return to step 1;
  4. Hold down the paper-feed button and the button with the ink-drops next to it, and then turn on the printer, still holding the buttons down;
  5. When the paper-out LED flashes, release the buttons;
  6. Press and hold the Cleaning button, until several lights flash - this will take a few seconds (i.e. then release the button);
  7. The printer will now attempt to reset, including resetting the EEPROM memory and running a short (about 10 seconds) cleaning cycle.
Procedure 2
  1. Turn off your printer, ensuring that the print head is at it's home location and locked in place as normal;
  2. Hold down the paper feed button only;
  3. Turn on the printer;
  4. As the paper feed light starts flashing, release the button;
  5. Immediately hold down the ink-drops button for some 10-20 seconds or until the printer springs into life;
  6. Allow printer to complete it's processing, then turn off for a few seconds, and back on again for a newly working printer!
Procedure 3 - for 1290 and possibly 890 printers 1290 printer with green (power / data) and red (ink / paper feed) lights flashing alternately:
  1. Switch off printer with panel switch;
  2. Switch off printer at mains switch - leave off for 20+ seconds;
  3. Hold down roll feed and sheet feed buttons;
  4. Switch on at mains;
  5. Switch on at printer panel;
  6. Continue to hold down roll and sheet feed buttons until both green and red lights flash together in synchronisation, not alternately;
  7. Switch printer off and then, after a few seconds, on again at mains switch;
  8. When red and green lights are both flashing in synchronisation, release the roll and sheet feed buttons;
  9. Press and hold down the ROLL FEED button (the one at the extreme left) and keep it down until the machine finishes whirring, cleaning etc and the green light comes on steady;
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My pioneer vsx 815 amplifier has a flashing blue standby light. Have tried resetting by pressing enter and advanced surround keys. All it does is flash a few other LEDs and then goes back to the flashing...


Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Pioneer-VSX-815-K-Receivers-manual/id/385dj989/t/2/

"enter and advanced surround keys"? I don't see that documented as a special function in the manual.

BTW: other than the Flashing light, is there a malfunction?

Page 72 describes how it REALLY resets...

Resetting the main unit

Use this procedure to reset all the receiver's settings to the factory default. Use the front

panel controls to do this.


1 Switch the receiver into standby.


2 While holding down the TONE button, press and hold the STANDBY/ON button for about three seconds.


3 When you see RESET? appear in the display, press ENTER .

OK? shows in the display.


4 Press SYSTEM SETUP to confirm.

OK appears in the display to indicate that the receiver has been reset to the factory default
settings.

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