Question about Aiwa AV-D97 Receiver

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Front display poising backlight and goes dim.

Front big display of receiver goes dim and so can't read display properly. I believe it's backlight has faded too much. Even though backlight dimmer setting is not set, hardly can see anything on the display, if you come nearer, you can read with little brightness, but from far it's all dark. Can't makeout anything.

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  • 31 Answers

I believe this is most likely due to incorrect voltages at the display. If you have a meter and are familiar with working on electronics, check the voltage at pin 3 of cn501. It should be -28.5. If the voltage is very low, try changing C123 and C124 in the power supply. If the voltage is ok, check R925 and R932, these are both 10 ohm 1/8th watt.

Posted on Dec 13, 2017

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Posted on Jan 02, 2017

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1 Answer

Dim LED display


As far as I recall, there is no adjustment. Typically the display area can be cleaned as smoke and dust collects on the plate. Remove the front panel and clean the inner surface of the plate. You may find that sufficient to resolve the problem. If not, then check the power supply for 5V and 12V. If the supply is low, the unit will still work properly, but the display can be dim.

Dan

Jan 22, 2010 | Nakamichi Audio Players & Recorders

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I have a Dell laptop D505. The laptop powers up but the screen display is very dim. I can't see the image on the monitor. I've tried to manually increase the color/brightness button and nothing changes. ...


Sounds like your inverter or your backlight is failing. The inverter is an easy repair, the backlight can be replaced but it involves taking the LCD panel apart, The backlight comes installed on new screens. I can include a service manual below and possibly a generic guide to backlight replacement....

http://support.dell.com/support/edocs/systems/latd505/sm/display.htm#1052500

http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/

Sep 23, 2009 | Dell Latitude D505 Notebook

1 Answer

Phone display is very dim-can barely read


Well, first you will have to check your options, if you can read it enough to get in there.  You may have the backlight turned off.  If the backlight is not turned off, then you probably have a bad backlight and will have to take it to your provider to get it fixed.  Replacing a screen/backlight is not something I would attempt to do unless you are certain you know exactly what you are doing as you can render the phone completely useless.  

May 28, 2009 | Motorola Mobility MOTO W755 Cellular Phone

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I have a HP Pavilion laptop ze4900. Every time I move th screen, the display either goes off completely, or it goes vey dim and I cannot read anything from it. The only thing I can do to get a display


You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

May 03, 2009 | Computers & Internet

1 Answer

The Display is Dim. Hard to read the numbers.


I have the same model and problem. The time display is totally unreadable. Looking for a solution as well. I suspect given the cost (I believe around $60), it's time for a new one. Anyone have any suggestions or easy repair ideas?

Mar 12, 2009 | Sharp R-314FS Microwave Oven

2 Answers

My samsung NW920 turns off after 1 min


If the blue LED ist blinking the monitor does not receive a video/sync signal. If the blue LED is on continuously and the display comes on for a few seconds and then goes dark or dim the backlight inverter may well be defective. The CCFL of the backlight needs several hundred volts to function.

Jan 11, 2009 | Samsung SyncMaster 920NW Monitor

1 Answer

LED light dont come on!!! Pioneer audio receiver VSX-9700s


Do you mean that the display that show the audio source or mode doesn't turn on? Try shining a bright flashlight at the display and see if you can read it. If you can, then the backlight light bulbs have died.

Replacing it will be a pain but you may find a usable replacement at Radio Shack. Just measure the voltage that goes to the bulbs and find one with similar ratings. They are probably 12v lamps.You will need to remove the display from the front panel of the amp and desolder the old lamps. Getting at the bulbs is the hardest part.

Dec 25, 2008 | Audio Players & Recorders

1 Answer

Backlight display


Try setting & tools, display setting, and then brightness

Nov 13, 2008 | Motorola Mobility MOTO W755 Cellular Phone

1 Answer

LCD goes dim within 1-2 minutes


You could have a bad "inverter" or flourescent backlight tube, or a problem in your power supply.The only way to isolate the problem is to check each component in sequence.If your hard disk and DVD / CD drive are still working when your screen goes dark, then I'd say it's the "inverter". You'll have to take it to a repair shop.

flipbooks

Jan 20, 2008 | HP Pavilion dv6000z Notebook

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