Question about HP Designjet 820 Printer

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Repair manual for designjet 820

Would like to have repair manul for designjet 820. No power, no lcd display. Could be main board or power supply.

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Try this link. I clicked the download now button & it's active.

http://www.eserviceinfo.com/downloadsm/17339/HP_DesignJets%20500.html

If this helps you plz rate this for me. Thank you kindly.

Posted on Feb 10, 2009

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GO ON LINE AND DO THE FOLLOWING TYPE

HP DESIGNJET 820 PRINTER SERVICE MANAUL DRIVERS
ENTER

WWW.HP.COM/DESIGNJET
ENTER

ROD

Posted on Feb 10, 2009

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46RV535U 46 in. HDTV LCD TV where is the fuse


There are several fuses on the power supply board.

Usually the one that fails is not the main AC line fuse (which is close to the AC line input), but the PFC fuse located, you guessed it, next to the PFC regulator IC on the board.

When the PFC fuse is blown (measuring open) you also need to replace the PFC IC and possibly other components on the board. Most of the time the PFC is sufficient though.

Here's a link for repair service for the board:
http://www.coppelltvrepair.com/p/751/toshiba-46rv535u-power-supply-board-repair-service-for-dead-refusing-to-power-tv-or-faint-display-problem

Also search there for the TV model, we may have repair kits or exchange services available!

Hope this helps!

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Fitnex t60 display says prg bad, what does that mean and how can i repair it


1) You must test first the power supply for +5DC for I.Circuit( Including EPROM, ROM, etc)
2) Test the flexible cable between KeyPanel and display board, and clean.
3) Chechk the connector between Display Board with the lower board(Main Controller Motor)for loose connection, loose wire.
4) Test the transformer controller supplying the 12VCA, to the power supply at the Main Controller Board since this supply the +5vd to the Display Board.
Finally you must have Strong Conclusion if the problem is 1)Display Board faulty, 2) Power supply Faulty, 3) Transformer Controller Faulty 4) Main Controller Board Faulty.

For All test you must use Dvoltmeter.



sincerely.
E.CUADRA
MANAGUA, NICARAGUA.C.A

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Hp designjet 5500 power supply error 1


Possible that the main capacitor has leaked and so there is drop in the +B or the sub voltages. It is important to check the rail votages to the main board , remove SMPS unit an check.
see link below for tips on SMPS power supply


http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies

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I HAVE A NEOVO E-19A MONITOR. ON BOOT UP SCREEN GOES BLANK AFTER ABOUT 5 SECS. TURNING OFF THE MONITOR THEN TURNING BACK ON BRINGS THE SCREEN ON FOR APPROX 5 SECS BEFORE GOING BLANK AGAIN. THIS IS REPEATED...


http://www.devicemanuals.com/guide/LCD/AG%20Neovo/AG-Neovo-S-19A-LCD-Display-English-Owner's-Manual-T1RjMU9Uaz.html
dlc.sun.com/pdf/820-0119-10/820-0119-10.pdf
http://www.scribd.com/doc/3082274/AOC-LCD-Monitor-786LS-Service-Manual
Use these training manuals, to troubleshoot and sort your issue out.
Above is a user manual, and a service manual, in the service manual, are the troubleshooting steps to perform to isolate the problem, and hopefully repair.

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Sanyo DP52449, tv getting power but no display


When DP52449 (chassis 01 - that is important!) does not power on and the front LED flashes every 15-20 seconds you have a faulty main board, which you need to replace or get serviced.

We presently do not offer replacement boards, but we do offer repair services for them at
http://www.coppelltvrepair.com/p/59/sanyo-dp52449-p52449-01-main-board-n7ke-repair-service


You may also be curious to read the article we wrote back in July 2012 on a problem that sounds exactly like yours and which lead to the service offerring:
http://blog.coppelltvrepair.com/2012/07/sanyo-dp47460-dp42840-dp46819-and.html

Hope this helps!

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1 Answer

Won't power up. Press power button, turns green then orange.


Good day sir/maam, Hi, If the LCD is under warranty, use it, they will replace the LCD monitor for free. If not, you may need spend for a Power supply board, to repair one.

There are two boards usually found on an LCD monitor, one main board that controls the LCD screen, back light, inverter, controls and sound. the second board is the power supply board, which accepts mains voltages 90v-240v AC and convert them to DC to power the entire monitor.
If however you may bring it to a repair shop or dealer, they will replace the power board, and there you go. the monitor is done.

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LED POWER ONLY LIFE, SCREEN DISPLAY DARKNESS


theres only one solution to the problem you have to replace the whole power supply board .its easier to replace them than finding and soldiering the defective parts like the capacitor on the board .u can just replace the power supply board if u think the power has a problem. if it doesnt work then u have to replace also the main board or the board connecting the rgb cable.its more expensive to replace the board but its worth it. ur lcd will work better and its easy to put them on the lcd casing .

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Designjet 110 plus not turn on


do you change formater board ?or try use firmware utilit you can find it here

http://h10088.www1.hp.com/cda/gap/display/main/gap_home.jsp?cp=1_4011_100&zn=gap

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