Question about ViewSonic VA550 15" Flat Panel LCD Monitor

Open Question

Won't turn on, doesn't respond to Power button at all.

Confirmed I'm getting 12V, and there is a green LED inside on the video board that is lit. I'm not talking about the Power LED on the front. Pressing the power button does nothing. No sounds, no signs of any kind. No fishy or burnt smells, nothing physical that I can see. Cables all plugged in, and I went ahead and reseated them.

Posted by on

  • Joe Chuang Sep 17, 2008

    Hey, I have exactly the same problem, anybody got a potential solution????

    ----------------
    Hello guys and girls,



    A friend of my just finished moving to the new apartment, but since he
    was not able to move everything to the new apartment, I was given this
    Viewsonic monitor.



    However, upon trying to power on the monitor, I only found out that the
    monitor would not power on, I know the external power brick to the LCD
    panel works, because when I plug in the plug into the power strip,
    there was a spark, and the green led light is also lit when plugged in,
    but the monitor would not power on, no matter how many times I press
    the power button, any insights on what could be the problem with the
    monitor??



    P.S I wouldn't mind opening up the panel, although it would definitely
    be better to at least get an idea of where to start once I get the
    monitor opened up....



    Any helps are welcome



    Thanks



    -Joe
    ------------------





×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

SOURCE: Monitor Continually Goes Blank

I had a similar problem with a Westinghouse 19" LCD. Had left power on while running errands, but came home to a black screen. I could cycle the power and see the desktop image but it would go black after 2-3 seconds.

Out of curiosity, after cycling the power, I immediately pressed the monitor settings button, and was able to get into the menu . . ., no black out . . . I changed the brightness setting and crossed my fingers while I let the setting menu time out . . ., lo and behold, it's working again.

Perhaps Mark could comment as to why this might have worked.

. . . and yes, I do feel lucky . . .

Posted on Apr 23, 2008

Ad
jerryg50
  • 1689 Answers

SOURCE: VX900, Backlight Works, But no picture.

It is impossible to see defective components visualy, unless there was a serious burn-up or something like that.

Without at least a DVM you cannot even verify if the power supply is functioning properly!!!

There is no support at the component level service for these monitors. The service tech will change the main input board to solve the fault that you have. If the back plane lamps are failed, he will change the power supply for the back plane lamps. In some of these models, the back plane lamps are not replaceable. This means that the screen would have to be replaced.

If you want to service the monitor the non supported way, call Viewsonic and see if they will sell you a copy of the detailed schematics, and engineering data for the boards. Most monitor companies will not sell any schematics or service information to no authorized contractors for their service.

If you can have the details, get a digital scope, a DVM, a logic analyser, and start troubleshooting according to the service manual. This can involve hours of work to figure out the fault. Then you will have the task of seeing if Viewsonic will sell any of their proprietory EPROM's or processor type parts.

This is why when the warranty is finished on these monitors, they are not worth to send back for service. The shipping cost, plus the parts and labour can come out to more than the monitor is worth!

Jerry G.

Posted on May 19, 2008

  • 9 Answers

SOURCE: I have viewsonic 1703wb monitor. Often Monitor power went off

Check the power cable. If it uses a power brick style assembly (like a laptop) it may need to be replaced. Some power bricks can break a wire at the base of the brick just enough that it causes a short in the system and shuts down the power flow.

Posted on Mar 19, 2009

FixinFax
  • 3085 Answers

SOURCE: ViewSonic LCD Monitor Went Blank

It is probably a bad INVERTER and / or backlight fluorescent bulb.

Posted on Jul 02, 2009

  • 1684 Answers

SOURCE: ViewSonic Vx924 No power

Hello,

If youcan take a picture or two of the boards in your system as close and clear as you can and go to our web page and email them to me I will check and see if we can help you find the problem.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Aug 14, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No output


You should start with Rotary switch on "Maintenance Bypass" position and Qf1 open.
Turn Rotary Sw to "Test" position and wait for self test to execute and UPS to turn on.
Once you get the Yellow lamp lit, it is asking for QF1 to close
Once closng QF1, if green LED is lit, turn UPS off by pressing gray button until it ask for confirmation, select Yes and press Return.
Turn Rotary Sw to Normal position, press On button and the green LED will illuminate.
If, after closing QF1, the green LED didn`t lit, turn Rotary Sw to Normal, press On button and wait for green LED to lit.

Thats`it...
if anything is not working well.. please let me know.

Mar 25, 2014 | MGE UPS Galaxy 3000 UPS System

1 Answer

My Sony Bravia HX8/46 will not turn on, I check all the power going to it and it all works. Is there something I can do?


Is the standby led on the front lit. If not likely the problem is with power supply. If the standby led is on does it go off when the power button is pressed? Does the led blink. If so count the blinks and get back. The power supply provides an standby voltage to the main board. If the standby led is lit then this voltage is present. When the power button is pressed the micro sends a turn on voltage to the power board. Normally the power supply will respond and all other voltages needed to operate the set will come up. if a component is shorted the micro will not turn on the power board and will usually give a failure code via the standby led.

May 31, 2013 | Televison & Video

1 Answer

My Beko MW5104 is frozen and does not respond to any settings. It is permanently on at spin/end with the green light on. I can switch it on and off. I have unplugged it from the mains and switched it off...


see this causes and fix it. God bless you
Thermal Fuse If the dishwasher won't start the thermal fuse might have blown. The thermal fuse helps to prevent damage to the dishwasher by turning off power so that it doesn't overheat. Once blown, the thermal fuse will have to be replaced for the dishwasher to work.
Door Switch The door switch, or switches, are sometimes called interlock switches. The door switch prevents the dishwasher from running while the door is open. If the dishwasher won't start, the switch or switches might be defective. To access the door switches, remove the control panel or inside door panel - depending on the model. They can be tested for continuity.

Main Control Board The main control board provides power to nearly every component of the dishwasher. If the dishwasher won't start the main control board might be defective. YOU should first check for more common parts. Many times control boards are replaced unnecessarily because the problem was not diagnosed properly.
Touchpad and Control Panel If the touchpad is defective, the control board might not get the signal for the selections made. If the dishwasher won't start and the display doesn't seem to change properly when the buttons are pressed, the touchpad might need to be replaced. On some models the touchpad and control panel are sold together and will need to be replaced at the same time.

Touchpad If the touchpad is defective, the control board might not get the signal for the selections made. If the dishwasher won't start and the display doesn't seem to change properly when the buttons are pressed, the touchpad might need to be replaced.

Timer The timer allows power to flow to the proper parts at the proper times. If the dishwasher won't start, the timer might be defective. Keep in mind that timers are often misdiagnosed as the cause of a problem. Check other components first before replacing the timer.


9_29_2012_12_28_36_pm.jpg

Sep 28, 2012 | Dishwashers

1 Answer

My proform incline won't recline


Dear Sir:

I will try to help you.

Please see the video with patience and carefully. you nee basic tools+Dvom

http://www.youtube.com/watch?v=TquYcOzGIw4&feature=related
http://www.youtube.com/watch?v=9G4MZh8JO2Q
http://www.youtube.com/watch?v=M7qJrRbdfBc
http://www.youtube.com/watch?v=MIIxoPtvhy8
The SCR lower board is designed with diagnostic LED lights. The LED's are color coded according to
their specific function. Green indicates a properly operating treadmill; the green lights should always
be ON when power is supplied to the treadmill. Yellow indicates a treadmill function. Red indicates a
treadmill malfunction. Here is a list of each LED and what it signifies:
MOTOR (yellow) - The MOTOR LED illuminates when dc (direct current) voltage is sent to the drive
motor. The LED gets brighter when the dc output is increased.
RLC (yellow) - The RLC (R = Reactance / L = Inductance / C = Capacitance) LED illuminates when
the filtering system is properly working. The filtering system includes the capacitor and filter choke. If
there is a short in either component then the RLC light will not come on.
DN & UP (yellow) - The DN and UP LED lights tell us if the elevation DN and UP relays are
functioning properly. When the LED lights, it tells us that the relay has energized and is sending high
voltage (110vac or 220vac) to the elevation motor.
AC PWR (green) - The AC PWR (Alternating Current Power) illuminates when AC line voltage is
delivered to the treadmill. It then passes through the in-line fuse (110)/s(220) and lights the AC PWR
LED.
+12V (green) - When the proper AC voltage is delivered to the treadmill, passes through the in-line
fuse/s, through the full wave bridge rectifier (changes AC to DC), through the transformer (steps down

DC to +12vdc) then the +12V LED lights.
This the board LED, who control the signal for Main Motor+Elevation Motor. You must see, the LED DN+ UP( both will be Lit) in any position down or Up.

With this you will fix it.

If you need further assistance, please reach me, sincerely.God bless you.

E.CUADRA
MANAGUA, NICARAGUA. C.A.





Oct 26, 2011 | Proform XP Weight Loss 620 Treadmill

1 Answer

The incline won't recline


I will help you.please watch the videos, and use basic tools , patience , and carefully.
http://www.youtube.com/watch?v=TquYcOzGIw4&feature=related
http://www.youtube.com/watch?v=9G4MZh8JO2Q
http://www.youtube.com/watch?v=M7qJrRbdfBc
http://www.youtube.com/watch?v=MIIxoPtvhy8
The SCR lower board is designed with diagnostic LED lights. The LED's are color coded according to
their specific function. Green indicates a properly operating treadmill; the green lights should always
be ON when power is supplied to the treadmill. Yellow indicates a treadmill function. Red indicates a
treadmill malfunction. Here is a list of each LED and what it signifies:
MOTOR (yellow) - The MOTOR LED illuminates when dc (direct current) voltage is sent to the drive
motor. The LED gets brighter when the dc output is increased.
RLC (yellow) - The RLC (R = Reactance / L = Inductance / C = Capacitance) LED illuminates when
the filtering system is properly working. The filtering system includes the capacitor and filter choke. If
there is a short in either component then the RLC light will not come on.
DN & UP (yellow) - The DN and UP LED lights tell us if the elevation DN and UP relays are
functioning properly. When the LED lights, it tells us that the relay has energized and is sending high
voltage (110vac or 220vac) to the elevation motor.
AC PWR (green) - The AC PWR (Alternating Current Power) illuminates when AC line voltage is
delivered to the treadmill. It then passes through the in-line fuse (110)/s(220) and lights the AC PWR
LED.
+12V (green) - When the proper AC voltage is delivered to the treadmill, passes through the in-line
fuse/s, through the full wave bridge rectifier (changes AC to DC), through the transformer (steps down

DC to +12vdc) then the +12V LED lights.
This the board LED, who control the signal for Main Motor+Elevation Motor. You must see, the LED DN+ UP( both will be Lit) in any position down or Up.

With this you will fix it.

If you need further assistance, please reache, sincerely. God bless you.

E.CUADRA
MANAGUA, NICARAGUA. C.A.



Oct 26, 2011 | Proform XP Weight Loss 620 Treadmill

1 Answer

HDMI/ DVI inputs failed approx. one month after connection of Denon home theater receiver with HDMI pass-through feature "on." Gear successfully re-connected via component video...


hi welcome to fixya
i want to clarify first the problem sir so as of now the problem with your tv won't power on then you are using again the old main board is that right ? when you use the new replacement main board the tv is functioning will the only problem is that the HDMI / DVI inputs doesn't work. and now you encountered power supply problem like won't start up or something that cut the supply in which the stand by indicator is turn off so as my idea it has a problem with the old board. but before you come up with the board making sure all the connectors coming from the power supply is properly connected to the main board as will as flexible and lvds cable for the T-con board is properly inserted.just let me know if is that what you are asking for so i can give you additional solution thanks for consulting the fixya.

Aug 30, 2011 | Televison & Video

1 Answer

60SDX88B. No video, No sound. DP06 Protection


not a solution but i have a 50gx30b doing something similar, no picture no sound, 3 green leds are lit up on the main board and then one red led lit up also on main board, front panel red led stays on for about 30 -50 seconds and then it all shuts off, I then have to unplug and replug to get the same results.

Mar 03, 2010 | Hitachi 60SDX88B 60" Rear Projection...

1 Answer

TV WILL NOT TURN ON


The power supply, and or one of the circuit board is defective. The set will require shop service.

Jerry G.

Jul 26, 2008 | Audiovox FPE3000 30 in. HD-Ready LCD...

1 Answer

Non responsive dvd600 by Oritron


Can you take led off, see if DVD stuck inside unit? Find the tray release button and manually open the tray and replug. and see if unit respond.

Aug 10, 2007 | Oritron DVD600 DVD Player

Not finding what you are looking for?
ViewSonic VA550 15" Flat Panel LCD Monitor Logo

Related Topics:

61 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Cindy Wells

Level 3 Expert

5341 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a ViewSonic Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...