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 March 2019

NORCENT LT-2722 - POWER SUPPLY SCHEMATIC [CIRCUIT DIAGRAM] - PASSWORD RESET - FACTORY MODE [SERVICE MODE]

NORCENT LT-2722 - POWER SUPPLY SCHEMATIC [CIRCUIT DIAGRAM] - Password Reset - Factory Mode [Service Mode] - Universal Remote Control Set-up Codes


MAIN POWER SMPS SCHEMATIC
SUB-POWER SCHEMATIC
{CLICK ON PICTURES TO ZOOM IN}
COMPONENT SIDE
FOIL SIDE

PASSWORD RESET
Change the password (default is ‘1111”).
Follow the instructions on the screen. Once changed, please remember your own password. If you have forgotten your password, please do the following:
  • “POWER (OFF) = MENU => V-CHIP => MUTE” to revert to the default password of 1111.
FACTORY MODE
  • Press Number key 100 => 9 => 9 => 1 into Engineer Mode.
  • Press menu key repeat to “ADC “page, then select “EPinit” and press “right” key to initial EEPROM.
  • Press Number key 100 => 9=> 9 => 9 into the Factory Mode.
Turn the POWER-button off to on to quit from factory mode.

Universal Remote Control Set-up Codes
GE : 0216 0043 0056 1027 [043, 216]
RCA RCR 311W: 1203 1207, 1222
RCA RCR 312W: 10748, 10824 11610, 11144, 11240, 11331