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No led display - Heating & Cooling

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Might be fuse blown off and smps

Posted on Oct 15, 2013

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Posted on Jan 02, 2017

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Nokia Asha 305 display light problem solution


With article and troubleshooting guide solution for Nokia Asha 305 display light problem solution Problem: No display lights, Dark display. Solution: Change LED, Change connector, Make jumper. phonetolls mobile repairing Nokia Asha 305 play light solution Article on this topic Thanks for checking out this Solution. Phonetolls.blogspot.com contents provide include dozens of cell phone artical additional, pictures, with hardware and software troubleshooting guides for you. Support us like and connect with this blogger for latest newsletter please follow me. By Admin shahid abbas. Troubleshooting guide Open display back panel carefully and change lights red marking here in this. Remember one thing to do this job, please be ensure that light controller integrated stage is working well then change or check LED (light emitting diode) on display. There are 4 LED with series you can check faulty LED with check meter. At connection with meter probe LED lights show us. There on light emitting diode(LED) Regulated voltage are equal to battery voltage- 4.2. There are series of LEDs if missing one LED then All series is damaged. Warning! During working on this trick if accidentally your handset may have dead or faulted we are not responsible for that please read our privacy policy., ,

on Jun 24, 2015 | Cell Phones

1 Answer

Why my unit keep shutting off after few seconds and then turbo light keep on flashing?


Operation =
Flashing Display Timer = Yes
Turbo =
LED Display = E1
Explanation and Checking points = Indoor unit room thermistor error - Open or Closed Circuit - Check and replace if required

Operation = Yes
Flashing Display Timer = Yes
Turbo =
LED Display = E2
Explanation and Checking points = Indoor unit pipe thermistor error - - Open or Closed Circuit - Check and replace if required


Operation =
Flashing Display Timer =
Turbo = Yes
LED Display = E3
Explanation and Checking points = Indoor unit fan motor malfunction - Check and replace if required


Operation =
Flashing Display Timer = Yes
Turbo = Yes
LED Display = E6
Explanation and Checking points = EPROM error - Check and replace PCB if required


Operation = Yes
Flashing Display Timer = Yes
Turbo = Yes
LED Display = Flashing
Explanation and Checking points = Option code error - Check and input new option code if required via wireless remote controller


Operation = Yes
Flashing Display Timer =
Turbo = Yes
LED Display =
Explanation and Checking points = Outdoor unit temperature sensor - Open or Closed Circuit - Check and replace if required

Jun 18, 2014 | Samsung AQV36JA Classic 36000 BTU Single...

2 Answers

I have prolem in samsung LED that no display shown when i turn on....can you please advice. thanks....Peter


send me detail on jogindersingh47@yahoo.com 1) if yours LED power on and display of window not giving then problem from cpu. a. first replace yours RAM and check display. b. then display cable and check display. c. Install new Display card and check display, if not giving display it means motherboard have a problem 2) LED not giving power on then problem from monitor a. replace monitor power cable and check display b. monitor logic card have aproblem

Mar 16, 2011 | MPC Computers AOC 7F 17" CRT Monitor

1 Answer

I need NOMA N1508 manual.


answer 1 Function and operation
1 - This timer has 3 working modes
a - Auto Mode(AU)
b - Auto and Temperature Control Mode (AC)
c - Manual Mode (LL)

Press "MODE" button and the LED display will cycle through these three modes.

2 - There is an output indicator light which turns Green (On all modes) and red (Off - manual mode)

3 - There is a bettery backup that can retain programs for about 1 week after power outage.

Operation
1 - On first use . Connect the unit to 125V AC power source. The LED display blinks 'C'. The unit at this moment is in initial state, where time and program need to be set.
2 - Press the "TIME" button, the LED display will now show "12.00", now the unit is entering time setting mode
a - The time interval for this product is 15 minutes
b - Press "TIME" button again. LED dislays 12:15 with each press of the time button the time increases by 15 minutes. If you press and hold the time button for 2 seconds the LED will increase rapidly.
c - After setting the time, press the enter button and the LED will display current time setting.
d - To change the clock press the "Enter" and the "TIME" buttons simultanously to enter the editing mode. Press the "TIME" button to adjust the time. Press the enter button to confirm

3 - To program press "mode" button once and the LED will display "AU" which stands for Auto Mode, press the "MODE" button once again and the LED will display "AC" which is the Auto and Temperature Control Mode. Press the "MODE" button once more and the LED will display "LL" which is Manual Mode. Press enter to confirm the selected mode. Press "MODE" button to role over these three options.

a - Auto Mode
Press "MODE" button and the unit will enter Auto Mode, LED displays "AU"
- Press "ENTER" button to confirm. LED displays "P". Press "TIME" button to set program ON time.
- After the program ON time is set press "ENTER" button to enter program ending time. LED will display "E". Press the "TIME" button to set the ending time.
- Press "ENTER" button to return to normal time display mode.
- The program indicator will be turned on after the ON time and ending time have been programmed
- Press the "TIME" button to review the program ON time setting and program ending time setting. The LED displays "P" and "E" respectively. After that the LED displays the current time.
- In case you want to modify the setting repeat step "a".
*** Note: When entering your program if no action takes place within 15 seconds it will go back to the time screen.

b - Auto and Temperature Control Mode
Press the "MODE" button and the LED will display "AU". Press the "MODE" button again and the LED will display "AC". press the "ENTER" button to confirm.
- The timer activates the load only when the folloewing two conditions are met:
1 The temperature is below -10
2 The program on time p is reached
For instructionsn on how to set the program ON time and the program ending time please refer to the Auto Mode fucntion
- The program indicator will be turned on after the ON time and the ending time have been programmed.
- When the program ending time is not yet reached, the load will be deactivated if the temperature rises above -7 and will be activated again if the temperature drops below -10. Once the prgram ending time is reached the load will be deactivated regardless of the temperature.

C - Manual Mode
Press the "MODE" button to select Manual Mode. When the LED displays "LL" press the "ENTER" to confim. The LED returns to show the current time. Press the "TIME" button to activate the timer the LEd will display ON. Press the "TIME" button again the LED will display off.
- In Manual Mode the output indicator will display red when the load is deactivated and green when activated.
- To exit manual mode press "TIME" and "MODE" buttons simultanously and the unit will return to Auto mode. The loading will be activated and deavtivated according to the previous setting.

4 Output indicator
1 - In Auto Mode ort Auto Temperature Control Mode when the loadind is deactivated the output indicator tunrs off.
2 - In Manual mode the outpur indicator turns red when loading is deactivated.
3 - In Manual Mode, Auto Mode and Auto Temperature Control Mode the output indicator turns green when the output is activated.

To reset all of your settigns including current time and programs, press and hold the "ENTER" button for 5 seconds from the "TIME" mode. answered 3 weeks, 2 days ago by Anonymous

Jan 11, 2011 | Sport & Outdoor - Others

1 Answer

LED display weak and hard to read. runs constantly


leds don;t dim as they get old they are either on or off and leds have a life span of around 20 years if driven with the wright voltage.it will a the plastic cover that covers the display or b the voltage to the leds in not wright.

Apr 23, 2010 | Danby DDR583R Dehumidifier

1 Answer

RCA RTD315W Receiver/DVD LED display


If you are referring to the information display, it doesn't activate until you take the system out of standby (the bright blue LED at the corner is shining). When you hit the OFF button (on the system or the remote) and the blue LED shuts off, your info display comes on and says WELCOME.

Dec 27, 2008 | RCA RT2500 System

1 Answer

All three LED's blinking, no video


hi, does the three lights blink only after u connect it to a display card??if yes then check if any of the connecter pins are damaged, or check out the display card..bye let me know

Dec 08, 2007 | Dell E173FP 17" LCD Monitor

1 Answer

LED display isn't displaying


i have a old led display, and dont know how to use it. all it says on it is micro sign, london sw.6. and cherry on back of control.

mally

Nov 13, 2007 | Uniden Cordless Phone

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