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

HITACHI - 22LD 4200 SERVICE HELP

HITACHI - 22LD 4200 SERVICE HELP


SERVICE MENU SETTINGS
  • All system, geometry and white balance alignments are performed in production service mode.  Before starting the production mode alignments, make sure that all manual adjustments are done correctly.  
  • To start production mode alignments enter the Main Menu by pressing 'M' button and then press digits [4=>7=>2=>5]
  • Service menu window will appear, displaying 'Adjust', 'Options'& 'Aps Wss Test'.
  • After entering the service menu, access its items by pressing 'Up & 'Dn' buttons.  In order to enter the selected menu, use 'Left & Right' buttons.  
  • To 'Exit' service menu, press "M" button.
ADJUST MENU SETTINGS
  • In order to enter Adjust menu, move the cursor to adjust-- parameter by pressing 'Up or Dn' buttons in the service menu, and press 'Left or Right' button.  A blank screen will appear as there is no items for adjust in the ADJUST menu now.
OPTIONS MENU SETTINGS
  • In order to enter Options Menu, move the cursor to 'Options' parameter by pressing 'Up or Dn' buttons.  Press 'Left or Right' button. A window appears with the following items.
  • Hue, First APS, A.P.S, Headphone, Vsr, DBE, Subwoofer, Lineout, Dolby Prologic, Equalizer and down.  There are '50' items in options menu, but '10' of them are seen when you first enter the menu.  Using 'Up or Dn' buttons remaining items can be seen.