Question about HP OfficeJet 7410 All-In-One InkJet Printer

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On the LCD display. It shows the HP sign and the line below seams to be looking for the wireless signal. The off button does not work. acts like its stuck or frozon

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  • markk636 Jan 12, 2009

    Yes, it did the trick. Thank you!

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First unplug the printer ...Turn it around and take off the dark gray piece at the back by simply squeezing both sides of it and pulling.... Then take the two chrome screws off. Use a wrench with the funny looking tip to get t off,not a screwdriver,that will not work ! Ok,at the top of the motherboard on the top far left you will see a black coated set of wires. Remove this simply by tugging on it a little ! Wala ! Put everything back together and wait about 15 seconds after the intial power up to start printing good as new !!!!

Posted on Jan 12, 2009

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Mine did this a few weeks ago. The printer wouldn't turn off and it wouldn't get past that screen you describe. I found the thread on fixya where Maggix described how to unplug the wireless card inside the back of the printer. It kills the wireless but lets the printer resume normal operation otherwise. Apparently this is a pretty common problem with this model, but HP has not offered any help. Here's a link to the other thread - scroll down to the posting by Maggix
http://www.fixya.com/support/t648531-hp_7410_all_in_one

Posted on Jan 02, 2009

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Posted on Jan 02, 2017

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2 Answers

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no country stated or if not usa what is your line power?(volts AC)
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12 year old monitors, found, (dead)
page one of your user guide is clear, read it yet?
seems not.,
Auto-ranging, 90 to 265 VAC
1280 x 1024 @ 60 Hz, 75 Hz (never higher) resolution settings.
those are very old monitors.. worth like $10 used.
if the power lamp shows wrong, the monitor is dead.
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the old monitors had CCFL backlamps before year 2010.
those are back lamps, that fail fast. 20k hours, fast. (short)
first is the power switch
2nd is a working PC with at least sync signals on 2 pins
Horz/vertical.
then the OSD screens work of not the monitor IS DEAD.
inside this OLD monitor is sleep time, turn if off with OSD menu's its nothing but trouble.
some have an OSD lock, so hold the menu key for 10 seconds
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see page 4-10
the guide is here. not too good , poor diagnosis sections
http://h10032.www1.hp.com/ctg/Manual/c00276671



specs.
https://support.hp.com/us-en/product/hp-l1940-lcd-flat-panel-monitor/427303/document/c00278650#AbT3


testing
power it on, LED power , glows.
with a PC working, say running any BIOS screen only....
or running, windows, in low resolution mode 1280 x 1024
if wise set the pc up to that first. not second.
then plug in the vga cable so the MOnitor only sees that signal above. (if you do above wrong, monitor shows OUT OF RANGE on the screen)

at mon.
PUSH the OSD button, menu, if OSD is dead the montor is dead.
OSD= on screen display., (yes the LDC has brain inside)
then take a flash light . point it at screen
see data now, if yes, in the beam is data the back lamp is dead
as are most 12 years old montors now.

see those 4 cream colored connectors bottom of this PCB
those are the high voltage CCFL lamps.
2 lamps 4 ends. the lamps are bad or the board 500 to 1000vdc
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It could go beyong that to transistors or even a bad bulb.
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