REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday, 23 February 2019

HAIER - HL40BG LCD TV SERVICE MODE ADJUSTMENTS

HAIER - HL40BG LCD TV SERVICE MODE ADJUSTMENTS

ENTER SERVICE MODE
  • Press 'Menu' to call main menu displaying on the screen.
  • Press [9 => 4 => 4 => 3 => OK] using remote control.
  • Service menu screen will be displayed.
  • Can check the version of the software, and can adjust some settings.
  • Press 'OK' button to 'Exit' from service mode.  
Operation in Service Menu.
There are five items in the root Product Mode, Aging Mode, Shop End, Service Mode and Design Mode.
Product Mode includes three items. White Balance Setting
Back light set to factory default.  Do not change its value.  It is optimized to get maximum life to Back Light CCFLs.
Service mode is for debugging and do not change data values commonly. 
Design Mode have four items, Video setting, Audio setting, Screen setting & Others.
Video Settings have four items; Threshold, Picture mode, ADC Auto adjust & Grey step. 
 Threshold allows to change  change the data values to Brightness, Contrast, Chroma, Hue & Sharpness.  Picture mode allows to change the state of picture such as Vivid, Standard & Mild modes.  ADC Auto-adjust and Gray Step are for debugging .  Do not change anything.
Audio Mode Setting includes four items, Sound Effect, Sound Mode, Sound Curve & Headphone Sound Curve.  All these items are for debugging, and do no change data values unnecessary.
Screen Setting allows to change Vertical Size, Vertical Position, Horizontal Size & Horizontal Position of the screen.
Others include two items.  Audio Output and Set E2PROM to default.  Audio Output allows to change the Volume of audio output.  Set E2prom to default will clear all changes have made, such as channel list have been tuned in, Volume, Brightness etc:- and initialize the TVs software to the state like a new TV set.
Posted By: FRANK at 05:49
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