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Won't initialize, leds on blank display - HP Designjet 1050 Printer

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No led lights mean no 5 volts. 5 volts run all the logic. Check power from the wall, replace the power supply.

Posted on Apr 16, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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Led will not show.comes on for a second then blank

James, sounds like a power supply issue.links below to shed some light on your issue.
to show your appreciation press the helpful button and follow me on fixya for more tips and info.

How to Fix LCD Monitor Power Problem


Fix Malfunctioning LCD Power Supply

How To Test Computer Monitor That Won Display Or Is Not Working

Feb 15, 2016 | Computers & Internet

1 Answer

8560 printer shut itself down and will not true back on

The following lists the chain of events that occur when you turn on a printer. You can follow this list as one means of determining if the printer is operating correctly. The exact chain of events depends upon the last power down condition and where the printer has last determined the printhead is positioned, this is stored in non-volatile RAM. The Checklist is the primary reference for troubleshooting power-up problems.

1. Power cord is plugged in and the power switch is turned on:

2. Power supply senses AC line voltage conditions (110 VAC or 220 VAC)

and enables DC voltages. If an overload occurs, the printer turns off the high voltage DC supplies, causing a "blink" effect on the Control Panel LEDs.

3. BIST test flashes the PE LED very briefly at a fast rate until the end of the

next test.

4. The Boot loader performs CPU initialization and RAM test. It then sends

the boot loader version to the serial port.

5. Power-On Self Test (POST) initializes the Control Panel. The Control

Panel LED turns red, green, orange, and then off. The Control Panel LCD then goes black and then clear. The POST version displays on the LCD

and waits two seconds. During this time the operator can press the Back

button to bypass the remaining POST test.

6. Low level Power-On Self Test (POST) diagnostics are performed. The

Control Panel displays status messages as each sub-test is performed.

This test takes about 8 seconds. All LEDs are off during the test.

If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED.

If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern.

7. The VxWorks operating system is initialized and engine code is started.

This takes about 15 seconds. The Xerox logo is displayed.

8. Print Engine Self Test (PEST) diagnostics are then performed. These test

the heaters, clutches, motors and solenoids. As each clutch is tested, you hear clicking with four high tones as each motor is tested. This test takes about 30 seconds.

9. The printer now runs the mechanical initialization. The exact sequence
depends on the initial position of the printhead and wiper assembly.

Feb 28, 2014 | Xerox Phaser 8560MFP Laser Printer

1 Answer

I have a broken Dell Precision 470 Workstation. The symptoms are as follows: Won't power up; Flashing yellow power LED on front panel; Blank STR_LED on motherboard; Yellow AUX_PWR LED on motherboa

Flashing front powerlight is often a result of a faulty powersupply, try another powersully on the pc and see if the problem gets solved. I've seen a few of these cases personally.

Jul 01, 2012 | Dell Precision Workstation 470 (204816690)...

1 Answer

Initial setup won't go away

If its a Sony the display button on the remote will turn the display off.

May 19, 2012 | Televison & Video

1 Answer

Siena 2 not working - display is blank and all leds flashing (not the indicators symbols)

Hi, sounds like 1 problem has created more problems. If display is blank then that is the board. If the lights are flashing then that could be lack of water, or because of the blank display. Need to take it to a repairer. Dazza REPAIRER

Sep 23, 2011 | Schaerer Siena Espresso Machine

1 Answer

No water getting into dishwasher

Check the outlet hose and if it is going into the "U" Bend under the sink,check that the connection it is onto is not blanked,if it is then the end will have to be opened up.(Normally hacksaw).Also check end of drain hose as some Manufacturers put a plug in end of hose.

Hope this helps.

May 21, 2010 | Dishwashers

1 Answer

The LED display on my AEG F88070IM is blank but

yes a new display is the most likely solution but check connections from input to lcd display card 1st..

Jan 04, 2010 | AEG 23 in. Favorit 88070IM Built-in...

3 Answers

Failure to initialize

better give it for service

Feb 25, 2008 | Zebra Z4M Printer

1 Answer

Will not record

the classic cdr201 will not record it will go to wait and return to cd status(blank cd etc) there is no led display of sound during this operation you can hear the audio for brief couple of seconds before it goes back to cd mode

Nov 28, 2007 | Classic Electronics CDR201 CD Recorder

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