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 !

Tuesday, 19 February 2019

TOSHIBA - 27A30 SERVICE MODE SETTINGS - ADJUSTING DATA.

TOSHIBA - 27A30 SERVICE MODE SETTINGS - ADJUSTING DATA.

TO ENTER SERVICE MODE
  • Press 'Mute' button once on the remote control.
  • Press 'Mute' button again to keep pressing
  • While pressing the 'Mute' button, press 'Menu' button on the 'TV' set.
  • Service mode window will be displayed with 'S' on the screen.
  • Press 'Menu' button on the 'TV' to select.
  • To "Exit' service mode, press, press 'Power' button to turn OFF the TV once.
KEY FUNCTION IN THE SERVICE MODE

A single horizontal line
TV 9ANT) / Video button on the TV
Test signal selection
TV(ANT) / Video button [on the remote]
Selection of adjustment items
Channel Up / Dn button on the remote.
Change of data value.
Volume Up / Dn button on the remote.
Adjustment menu mode On/Off
Menu button on the TV.
Initialization of the memory (QA02)
Recall + Channel Up button on the ‘TV’
Initialization of the self diagnostic data
Recall + Channel dn button on the ‘TV’


R-cut selection
1 button
G cut selection
2 button
B cut selection
3 button
CNTX selection
4 button
COLC selection
5 button
TNTC selection
6 button
Test audio signal On/Off [ikHz]
8 button
Self diagnostic display On/Off
9 button
INITIALIZATION OF MEMORY DATA OF QA02
  • After replacing QA02, the following initiation is required.

TEST SIGNAL SELECTION
  1. Every pressing of TV/Video button on the remote control in Service Mode changes the built-in test patterns.  
  2. Press [8] button while any built-in test pattern to on the screen to output the 1kHz sound.  Press the button again to cut off the sound.  If the video cable is connected to the Video-1 input jack, the test pattern signals are not displayed.
Test Patterns order:  NORMAL PICTURE > RED RASTER > GREEN RASTER > BLUE RASTER > ALL BLACK > ALL WHITE > WHITE & BLACK > BLACK CROSS BAR > WHITE CROSSBAR > BLACK CROSS HATCH > WHITE CROSS HATCH > BLACK CROSS DOT > WHITE CROSS DOT > <
  1. Enter the 'Service Mode'.
  2. Press and Hold 'Recall' button on the remote, and then press 'Channel Up button on the 'TV'.
  3. Check the picture carefully.  If necessary adjust any adjustment item/s.  Perform 'Programming Channel Memory" on the owners' manual.
  4. NEVER attempt to initialize the data, unless QA02 has been replaced.
Posted By: FRANK at 06:05
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