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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday 9 February 2019

HP - LT3200 _ LT3700 _ LT4200 _ LT4700 _ LCD TV__ LED BLINKING CODES _ SOFTWARE VERSION INFORMATION

HP - LT3200 _ LT3700 _ LT4200 _ LT4700 _ LCD TV__ LED BLINKING CODES _ SOFTWARE VERSION INFORMATION





LED BLINKING INDICATIONS


Indicator
Blink frequency
Failure part
Location
Amber and aqua LED blinking
1 sec interval
MCU-Host link error
Main board
Amber LED blinking
1 sec interval
TAFE does not respond
Main board
Aqua LED blinking
1 sec interval
Tuner does not respond
Main board
Amber LED blinking
2 sec interval
Digital demodulator does not respond
Main board
Aqua LED blinking
2 sec interval
Audio process does not respond
Main board
Amber & Aqua LED blinking
2 sec interval
More than two I2C devices error.
Main board

The special condition to watch out with: Red LED blinking 2 seconds interval _ Digital Demodulator does not respond.

Error code '003' [digital demodulator does not respond] requires source to be selected as "Antenna" before the test is valid.  If the source is not antenna, it will always give error code '003', because digital demodulator is not turned ON until 'antenna' source is selected.

SOFTWARE VERSION INFORMATION
  • Turn the TV ON.
  • Press 'Menu' button.
  • From OSD, select "Setup => Time"
  • Press keys { SAP/MTS > 7 > 7 > 7 }
  • The software version will be displayed.
TO RUN DIAGNOSIS
  • Power OFF the TV and pull disconnect the Power Cord.
  • Plug in power cord while Holding the Power button on the panel of the TV.  Hold the Power button until a testing message appears.  This may take up to 30 seconds.
  • Diagnostic test begins.
TO GET BACK TO NORMAL TV OPERATION
  • After diagnostic test finishes, power off the TV and disconnect the power cord.
  • Wait for about 30 seconds, and then plug the power cord back in.  The TV returns to normal mode.
INSTALALTION MENU
The TV incoperate custom menus that are accessible only through a special combination of keys on the remote control.  These menus are not available to all users and are to be used by service technicians.  The installtion menu allows to change default setting values of current input audio and video modes.
 To access the installation menu.
  • Turn ON the TV.
  • On the remote, press 'Menu' button.
  • From the OSD,  select Setup => Time.
  • If the TV is not in the Hotel Mode, press the following key sequence: 'SAP/MTS => 1 => 3 => 5.
  • If the TV is in the Hotel Mode, change the input source to AV2, then press 'SOURCE +> 1 => 3 => 5.
Posted By: FRANK at 05:15
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