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31.06 Defective supply - Lexmark C540N PROD SPECS TBD Printer

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My Samsung LED 46" tv (UN46D6050TFXZA) won't turn on. The standby led blink twice 5 time in each cycle. all the capacitors on power board look normal.


In most of the case the problem is defective LED strips inside of the panel, please try this:

1. Unplug the cable between the main board & the power supply, apply the AC power to the power supply, if the back lights came on, the problem is defective main board.
2. if the back light do not come on, the problem in most of the case is the defective LED strips, you may get a new power supply module to test it again to make sure that the problem is not the power supply.

Aug 24, 2017 | Samsung Televison & Video

1 Answer

Sc 558 error code on Ricoh Pro C720


SC558 is a Oil supply motor error The machine detects a motor rotation error for 5 seconds after the oil
supply motor has rotated for 5 seconds. ?? Oil supply motor defective
?? Oil supply unit defective
1. Replace the oil supply motor.
2. Replace the oil supply unit.

Jan 29, 2015 | Ricoh Office Equipment & Supplies

1 Answer

Display lights up for few seconds then goes off


Good day!

reasons are: defective memory, defective power supply, infected with malware and defective vga cable.

Visit HPParts us Computer Parts Power Supplies Electronics Hard Drives...

Jan 19, 2012 | HP Pavilion F1523 15" LCD Monitor

1 Answer

I have sound but not picture what can be wrong and how do i fix it and at what cost


it seems the on screen display also not there. there are lamps fixed on sides of screen. it lit the screen & u see the picture. either the lamps are defective or their power supply is defective. one can find these after opening the back cover & checking the power supply of lamps. if power supply is defective, it is replacable item. but if lcd panel is defective then the whole panel needs to be replaced. it is a costly item may be it will cost 70% of the price of lcd tv.

Sep 03, 2011 | Televison & Video

1 Answer

I have problem in Sharp AR-M205,and i don't know how to fix, error code F5


F5 00 Content Copy lamp lighting error Detail Copy lamp does not light despite the output of lighting signal. Copy lamp lights without the output of lighting signal. Cause DC power supply defective Control PWB defective Copy lamp defective Improper connection of harness between PCU PWB, DC power supply unit and copy lamp unit Check and remedy Check copy lamp for lighting with SIM5-3. Check harnesses and connectors between PCU PWB, DC power supply and copy lamp unit

Jan 12, 2010 | Sharp AR-M205 Copier

1 Answer

Error code E-22 in RICOH FT3713


· Scanner home position sensor failure
· Defective scanner motor
· Defective main motor
· Defective dc power supply board
· Incorrect scanner drive wire position
· Defective dc harness
· CN103 or CN105 on the main board is not correctly connected.
· FU202 on the dc power supply board open (blown fuse).

Jan 08, 2010 | Ricoh FT3713 Copier

1 Answer

When we print manually the whole page comes out completly black.


edithvenzor:
Try replacing the toner cartridge first, then proceed with the other items.
Thank you and let me know what happens:
Binary Bob

Problem
Cause
Solution
How common*
Comments

BLACK PAGES
DC Controller PCA is defective. If the DC Controller turns on the laser beam continuously,
the entire surface of the Photosensitive drum is neutralized causing a completely black page
Replace the DC Controller PCA
10

BLACK PAGES
Defective toner cartridge
Replace the toner cartridge
9
4

BLACK PAGES
High voltage contact springs are dirty or defective. The high voltage contacts are mounted on
the High Voltage Power Supply PCA and protrude into the toner cartridge cavity
Inspect and clean the high voltage contacts. If damaged, replace the High Voltage Power Supply PCA.
2

BLACK PAGES
High voltage power supply circuit is defective (not supplying the correct negative voltage)
Replace the High Voltage Power Supply PCA
10
some printers have the high voltage power supply on the DC controller.

BLACK PAGES
Laser/Scanner Assembly is faulty (turning laser on continuously)
Replace the Laser/Scanner Assembly
5

BLACK PAGES
Light is leaking into the printer
Make sure that all covers are in place
2
possible, but not likely

Nov 30, 2008 | Office Equipment & Supplies

1 Answer

No picture


LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:

Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem. Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective inverter. Symptom: Blue Screen but no picture
Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Scree. Symptom: Power light stays on but no display and sound
Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board. Symptom: No Power or Power indicate light does not lits
Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board). Symptom: Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.

This is a power supply problem. Try to check the fuses ,fusable resistor ,capacitor and transistor in power supply board.

Hope it may help you;

Regards,
VOTIT

Oct 01, 2008 | Olevia LT37HVS 37 in. LCD HDTV

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