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My colorlaserjet 5 prints completely black pages on the test sheet.

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Have you tried Online HP tech support ? Worked great for me

Posted on Aug 09, 2008

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How to fix black and white for mitsubishi wd65835


White spots are due to a defective DMD chip. Mits replaced part for free (TV 5 years old) but charged me $200 in labor. Fixed the problem completely

Jun 05, 2014 | Mitsubishi WD65835 65" HDTV

6 Answers

On my Brother MFC410CN Printer Message reads Unable to clean I have followed TroubleShooting instrctions and it still appears


MFC620CN/425CN/420CN/410CN/215C/210C and FAX2440C
Press the Menu/Set, Black Start, Menu/Set, and Black Start keys in this order.TIP: For the FAX models equipped with numerical keypads, you may press the Menu/Set, Black Start, and 0 keys instead in the same way as conventional models.Then "MAINTENANCE 10" appears on the LCD. Press 82 using the numerical keys/arrows.
Then press the Menu/Set key.
Error code will display indicating source of error if it is 41 thats print head error,
replace machine.

press stop to exit if needed.
(http://www.fixya.com/support/t250171-brother_mfc_215c_unable_clean)

Oct 06, 2008 | Projection Televisions

21 Answers

I have a problem with my epson 9600 it's about 3 years old the black is printing in dart green, I tried to clean the head but no joyed, the reading is showing E*****F for both Head & Cleaner. Can...


Hey,

3 years, its definitely a problem in the printer head or the cardridges, try performing the print head cleaning a few times, also alingment? You can also clean the carts and connectors yourself.

Thanks,
Ekse

Sep 06, 2008 | Projection Televisions

1 Answer

Hitachi LCD screen taking 5 mins to come on screen black gradually lightens and then goes blue and then picture comes on and it is fine


YOU HAVE SET SELF TEST TIME LIMIT TO 5 MINUTES. RE SET IT PROBLEM WILL BE SHORT OUT. OTHERWISE CALL SERVICE ENGINEER.

Oct 07, 2011 | Projection Televisions

1 Answer

My Panosonic TV Model# PT-47WX42F will not turn on. It clicks like it wants to turn on but does not. The power light is flashing 5 times


5 blinks is error code for short on 140 volt line inside the set; it usually means the Horz output transistor is shorted. If you have a ohm meter (used for checking fuses etc) there is a simple test to see if this is the problem.

Also associated with this is a bad capacitor near it (Location for the Transistor is C509 and the transistor should be location Q551)

Location numbers are printed on top of board near part; both parts are on (as seen from back) far right board near the large black part with big red wire coming out of the top.

Transistor is just to the left of it and cap forward about 3 inches.

If this information told you something you did not know rate this solution as very helpful as I do this here for free.

SD TECH

Aug 30, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Black is turning green on screen


The green cutoff level has drifted and the green gun is not turning off completely. You MAY have a user adjustment available.

Oct 23, 2009 | Philips Projection Televisions

1 Answer

Repost last comment on pt-47wx53g problem


Hi, I post here my last comment, follow the diagram at page 44, leave the checkup at page 16, for some of the test you need raster, and the TV is in protection mode now.
From protection mode follow troubleshooting diagrams, I think is page 44/45.
There are many faulty component that can give you blank screen with no raster, the strange things is that the TV stays on, has sound and is not on protect.

Test also the sygnal boards (the ones with the AV connectors) and see if it makes any difference switching the signal to a different input, this TV has several ICs that manage the video signal, testing blindly will give no help. Follow the diagrams on manual.


I think the following was my last comment:
-----------------------------------------------------------------

You need to follow the troubleshooting charts at page 44 of user manual.
(download the service manual here)

Regarding the jungle chip, that is just a familiar name for the main computer CPU, service manuals rarely call it Jungle chip. Your jungle Chip is the main processor, IC4511, be careful handling the component arount the IC4511, some IC in there is sensible to static charges in your hands, better to keep fingers away.

In your case I would start testing following the diagram at page 44 of SM. I will also test the pico fuses at the base of convergence ICs, if the STKs had been replaced
That is what you do when the nature of the problem is not clear.

Since there is no protection mode on, the fault
can concern IC3001 and IC3002 that are vidio processors, and other parts involved.
If at any point you get the led on, and TV going in protect mode, with a flashing led, that is a step forward, means that the jungle IC (The IC4511) had detected the fault.

Start testing following the procedure at page 44, or same page on your version of service manual.


(download the service manual here)



Dec 03, 2008 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

1 ohm resistor, checked ok


yes i work at that site as a repair tech. The manuals they have are very good quality, plus they come with free unlimited tech support which is available by instant message. try that site you will be glad you did. heres a link
http://servicemanuals.vstore.ca/

May 13, 2008 | Panasonic PT-47WXC43 47" Rear Projection...

1 Answer

Is my toshiba 32hfx71 a HD tv?


According to the spec sheet it is an HDTV.

The site link below has a spec sheet towards the bottom of the page:
http://www.dealtime.com/xPF-Toshiba-32HFX71


Jerry G.

Apr 16, 2008 | Projection Televisions

1 Answer

1997 Toshiba 50 inch tv


Sounds as though you have a filter capacitor bad in the power supply. I strongly suggest you have it checked and repaired soon, before it burns up a transistor or regulator. The cost may be a bit high now, but will escalate to possibly a complete power supply board. If you can repair your own set, check the main power supply filter capacitors. Good luck. I hope this has helped.
Ed
NC Electronics
Mills, Wyoming

Feb 18, 2008 | Toshiba TP50G50 50" Rear Projection...

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