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The main thermistor reading is lower than 140C when paper is moved
The fixing film unit is faulty (i.e., the main thermistor (TH1) has poor contact or has an open circuit; or, the fixing heater is faulty). The main power supply PCB is faulty. The DC controller PCB is faulty. Caution To clear the error, execute the following in service mode: COPIER>FUNCTION>CLEAR>ERR.
State Turn on the power switch, and clear E002/E003. Thereafter, turn off and then on the power switch. Does the fixing heater operate? NO: See "The fixing heater fails to operate." 2. Wiring Is the wiring from the DC controller PCB to the fixing film unit normal? NO: Correct the wiring. 3. Fixing film unit, DC controller PCB Try replacing the fixing film unit. Is the problem corrected? YES: End. NO: Replace the DC controller PCB

Dec 15, 2017 | Cannon Office Equipment & Supplies

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How to solve samsung SM-B350E camera dc operation fail?

Go to application manager and clear cache and data from the camera. Restart the phone and try to shot again

Jul 13, 2017 | Samsung Cell Phones

1 Answer

Wire my ac jack for my samsung np365e5c

The AC adaptor goes into the AC socket, NOT the computer connection. The Computer connection is DC and comes from the DC side of the Adaptor. If you mean the DC socket has broken, then you need someone to replace it inside the computer.
If the AC adaptor has failed, you can buy a replacement ( 19V 3.16A 60W AC Adapter).
See the Manual

Feb 23, 2015 | Samsung Computers & Internet

1 Answer

Samsung LN46A580P6F LCD HD TV is turning on and off from two to ten times before it stays on when the tv is cold

Samsung LN46A580P6FX
On the main board, IC104 (Part #SPX1587AT) is a 3.3VDC to 1.8VDC regulator. When this IC fails, the 1.8VDC drops substantially when the TV is turned on. After five minutes or so, the unit operates fine. This IC can be purchased from digikey for about $1.80.
Another fix is to attach a 1000uF 10 volts capacitor from ground to the DC source of this IC. I used a 1000uF 50V (overkill) for proof of concept. See attached pictures.


Dec 17, 2013 | Sony KDS-R60XBR1 60" Projection HDTV

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What's your problem?s Samsung smt 190 dn goes th o screen saver mode and you can only see picture for second before it goes off

It does the same when it is used with another system?
Not likely that it goes into sleep mode, more liekly to go into safety shutdown mode due to shorted cicuits, or bad DC in the power supply due to bad DC filter caps as you can see in y example of failed SAMSUNG TV's and Monitors.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Oct 19, 2011 | Samsung SMT-190 19" Flat Panel TFT LCD...

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My Samsung SyncMaster 2253 BW won't display any image. I've tried different computers and different cables, but no luck. The screen will turn on for a while and swith between analog and digital...

It can be due to bad laogic board or the logic board is no getting clean DC from the power supply due to bad DC filter caps. Failed SAMSUNG TV and monitors:
They made them to fail.
You need to do some in-depth troubleshooting and you may want to read my guide to understand how LCD monitors work.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Jun 24, 2011 | Samsung SyncMaster 2253BW LCD Monitor

1 Answer

Dc operation failed

i am facing a problem during opening the camera of my Chinese mobile. dc operation fail. model "ZTC 6120".

Mar 22, 2011 | Cell Phones

4 Answers

Dc operation fail in gfive w520

my gfive w520 mobile not working dc operation fail displayed please solve my problem mail id:

Dec 28, 2010 | Cell Phones

4 Answers

Dc operation fail on mobile while opening camera

tinmo f-2010 show dc operation fail when we open camera..................
please give solutain

Sep 01, 2010 | Cell Phones

1 Answer

Samsung LCD monitor DC voltage

The internal DC power supply consists of 2 REGULATED power supply circuits, one is 5VDC (about 1A) for logic circuits, another is 12~18vdc (about 3~4A) for the backlight circuits.
Here are the service manuals:

It may not be practical to build two external power supply, and you have to know the points where to tap into on the PCB.

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed SAMSUNG monitors to get some ideas what to look for:
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Jun 21, 2010 | Computers & Internet

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