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_ HP-LT3700_HP-LT4200_HP-LT4700 _ LED BLINKING CODES _ HOTEL MODE

HP- LT3200_ HP-LT3700_HP-LT4200_HP-LT4700 _ LED BLINKING CODES _ HOTEL MODE




HOTEL MODE

  • Hotel mode allows hotels to not allow their guests to change TV configurations. This mode blocks some remote buttons and TV functionality, including the MENU and FAV buttons.
TO ENABLE AND DISABLE HOTEL MODE
  • Run the Setup wizard (or channel scan and time setup) through the main menu.
  • Access the install menu and change to HOTEL mode from Normal TV mode.
To access the installation menu:
  • Turn the TV on.
  • On the remote, press the Menu button.
  • From the OSD, select Setup -> Time.
  • Press the following key sequences: SAP/MTS -> 1 -> 3 -> 5.
To return to normal mode from Hotel mode:

  1. On the remote, press the Menu button.
  2. From the OSD, select Setup -> Time.
  3. Change input source to AV2, and then press SOURCE -> 1 -> 3 -> 5.
LED BLINKING CODES

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 and aqua LED blinking
2 sec interval
More than two I2C devices error
Main board

The special condition to watch out for with the following message: Red LED blinking 2 sec 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 source is not antenna, it will always give you error code 003 because digital demodulator is not turned on until “antenna” source is selected
Posted By: FRANK at 02:20
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