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, 2 April 2019

HOW TO ENTER SERVICE MODE - ONIDA CTVS - SMPS CIRCUIT DIAGRAM

HOW TO ENTER SERVICE MODE - ONIDA CTVs - SMPS Circuit Diagram

ONIDA COLOUR TELEVISION – 14XS / 20XS / 21IQ/ 14TVE / 20TVE / 21TVE/ 21BLACK FGL (FTG)/ 21FLAT3G
SERVICE MODE
NB: You should have its original remote control to enter Service Mode and adjust the data values.  No Universal remote control, or others can be used for this purpose.
* The following display comes on the screen by pressing DISPLAY key and VSM key at the same time.
** [For Model: 21XSW4 Series: Press "VSM" and "+" On remote control.]
[1] FACTORY
[2] SERVICE  MODE
* Press CURSOR UP OR DOWN key to be in Service menu.
* To select Service Menu parameters use CURSOR ▲/▼ key and to adjust these parameters use CURSOR ◄/► key.
H-LINE
1.To get H-line press VSM and DISPLAY Simultaneously.
2. Press CURSOR UP KEY to get R CUTOFF.
3. Press '0' to get H-line.
4. To come out of H-line again press '0'.
VSM PRESET
There is FOUR VSM
PRESETS. (CARTOON,FILM/POP,NEWS,)
For the setting of individual VSM PRESETS
1.  Press VSM and DISPLAY at the same time.
2. Press CURSOR DOWN key to get the Setting for the
VSM PRESET.
3.  Press CURSOR DOWN key for the selection of each parameter.
4.  Use CURSOR LEFT/RIGHT key for their setting as per the table given below.
5.  Press VSM Key for selection of VSM PRESETS.
A. Digits specified for the various parameters (not specified as FIX) are closer to the values to be adjusted. The final adjustment should be as per the procedure specified.
B. Digits mentioned in the Service Menu should not be changed wherever ‘Fix’ is mentioned, elsewhere they are subject to change as per procedure specified
SMPS SCHEMATIC
CLICK ON THE PICTURES TO MAGNIFY
Posted By: FRANK at 00:49
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