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 !

Wednesday, 13 February 2019

SCHNEIDER TV17XL.4 TV17XL.7 TV17XL.C TV17XL.D TV17XL.E TV-17XL.F SERVICE MODE ADJUSTMENTS

SCHNEIDER TV17XL.4 TV17XL.7 TV17XL.C TV17XL.D TV17XL.E TV-17XL.F Service Mode Adjustments


Operating Voltage [+145V]
Set Contrast and Brightness to minimum.
Check point:  Cathode of [D202], against secondary ground.  Set with [R202] the measured voltage to {+145 +/- 0.5V}
AGC VOLTAGE ALIGNMENT

  • In range III [channel-8] feed in a PAL B/G test pattern without sound carrier and with an antenna input level of 65dBuV at 75 Ohms. At tuner pin-1 [AGC] and pin-3 [Gnd], connect a voltmeter and set in Service Mode following voltage:


  1. Tuner Selteka      [KS-H-132]          2.3VDC.
  2. Tuner Temic         [6002 PH5]          3.15VDC.
  3. Tuner Philips        [UV 1316-SIG-3]  2.10VDC.
TO ENTER SERVICE MODE
     Before activating Service Mode set suited test pattern.  Set medium brightness, color, contrast and sharpness, noise and picture mode. 

     A standard 4:3 test pattern is necessary for geometry adjustment.  The chassis for 16:9 requires a 4:3 test pattern covering the entire area to be set in the decoder mode, thus creating a horizontal extension [horizontal ellipses].

Go to Service Mode
  • Press the buttons [Mute => red => TV} on the remote control, one after another in sequence.
  • Use 'red' button to select menu line of digit.
  • Use 'Up' or 'Dn' button to select further parameters.
  • Press 'Vol Up or Vol Dn' buttons to change the parameters.
  • Press "OK" button to store the changes into memory.
  • Press "TV' button to EXIT service mode.
CHILD LOCK CODE GLOBAL [ON | OFF]

OFF:  During the search operation all channels are not 'prepared' for a possible activation of the child proof lock and have to be individually set.

ON:  During the search operation all channels are 'prepared' for a possible activation of the childproof lock.

CHILD LOCK CODE RESET
ON: To deactivate the childproof lock , set to 'On'.  After switching On the mains switch again, the childproof lock is switched off.

NVM addr.     0 0 0 0                     Data  0 0
  • Press the 'red' button on the remote control to select the various setting positions of the NVM address and press the volume buttons to  ( > ) | ( < ) to change them.  The complete address is a four digit figure and the corresponding data  is a two digit figure.  A chang of data from a complete address must be stored by pressing the button "OK". 
  • ATTENTION:  Changing other addresses may cause fault in the set.
Posted By: FRANK at 02:12
TAG: , ,