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.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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, 16 February 2019

PANASONIC TC26LX20 TC-32LX20 TC22LR20 LED BLINKING CODES AND SERVICE MODE SELF CHECK MODE

PANASONIC TC26LX20 TC-32LX20 TC22LR20 LED blinking codes and Service Mode Self Check Mode

LED Blinking Codes - Service Mode and Self Check Mode Panasonic TC26LX20 TC-32LX20 TC22LR20 - LCD TV
SELF CHECK ACCESS: To access Self Check Mode
Press 'Volume Down' button on the TV, and 'Sleep' button on the the remote simultaneously.  To "EXIT" self check mode; press ANY key.
Self Check Display

TO ENTER SERVICE MODE
  • While the unit is Powered ON, Hold Down the "Volume Down" button on the TV, while pressing the "Display" button on the Remote control, three times, withing 2] seconds.
  • The Service adjustment Menu will appear on the screen as shown below.  Service Mode is broken into two categories, Main Items, which are displayed on the Menu Screen and Sub Items.  
  • To navigate adjustment mode, use number buttons [1] & [2]  on the remote control to change the Main Item.  The number [1] button will cycle from the 'Main' option down to the DVD option.  The number [2] button will cycle in reverse direction.
  • Use [3] & [4] buttons on the remote control to cycle through the Sub-Items, until the proper adjustment is reached.
  • Adjustment of Sub Item is made using the "Volume" buttons on the remote control.  
  • Data changes are saved automatically when switch Sub or Main items, or Exit service mode.
  • To 'EXIT" service mode, switch OFF the Power Button on the Main Unit, or "Power" button on the remote control.
When DVD adjustments are accessed, the unit switches to DVD mode. The software version of the DVD player can be displayed here.
Service Mode Screens.
LED flashes once every 5 seconds.
  • Check the Back light supply voltage from [P] board.
  • For TC22LR30 - 15Volts P2 pin 9- 15. Ground Pins 1-7.
  • For TC26/32LX20 - 120 volts P4 pins 1-2.  Ground pins 4-7
LED flashes five times
  • Check the Main 9V regulator [Q801] on the 'AP" board.
LED flashes eight times
  • Check the Sub 5 volts regulator [IC 808]
The unit shuts down and the Power On LED is off.
  • Check the SOS shutdown and over-voltage protection circuits.
SOS shut down problem
If the unit keep shutting down, check the SOS Shut down line at pin-9 of connector DG-2.  It should be at a high level.  Anodes of [D877, D878, D880 & D844] all should be High
Posted By: FRANK at 06:58
TAG: , ,