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 !

Monday, 1 April 2019

HP LCD TV - LT3700 - LT4700 - LED BLINKING CODES - HOTEL MODE - PANEL FAULTS

HP LCD TV - LT3700 - LT4700 - LED BLINKING CODES - HOTEL MODE - PANEL FAULTS

HP LT3200, LT3700, LT4200, LT4700 High-Definition LCD TV - LED Blinking Codes & Panel Faults - Hotel Mode _ Software version
LED indicators
  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.
Software version information.
To access the software version information OSD:
1 Turn the TV on.
2 Press the Menu button.
3 From OSD, select Setup => Time.
4 Press the following keys: SAP/MTS => 7 => 7 => 7. The software version information displays on the lower right corner of the TV.
To run diagnostics
1 Power off the TV and pull disconnect the power cord.
2 Plug in the power cord while holding the power button on the TV (not▲on the remote). Hold the power button until a testing message appears. This may take up to 30 seconds.
3 Diagnostic tests begin.
To get back to normal TV operation after running diagnostics
1 After the diagnostic test finishes, power off the TV and disconnect the power cord.
2 Wait for about 30 seconds; and then plug the power cord back in. The TV returns to normal mode.
Installation menu
  The installation menu allows you to change default setting values of current input audio and video modes. For example, to change the picture settings for a component input, switch the TV source to component before entering this mode.
To access the Installation menu:
1 Turn the TV on.
2 On the remote, press the Menu button.
3 From the OSD, select Setup => Time.
4 If the TV is NOT in Hotel mode, press the following key sequences: SAP/MTS => 1 => 3 => 5.
5 If the TV is in Hotel mode, change input source to AV2, then press SOURCE=> 1 => 3 => 5.
Color adjustments in this menu apply to ALL modes (Cool, Standard, or Warm). If you want to adjust the color temperature of a single mode, you will need to adjust the White Balance settings in the Factory Menu.
Hotel mode
To access the installation menu:
1 Run the Setup wizard (or channel scan and time setup) through the main menu.
2 Access the install menu and change to HOTEL mode from Normal TV mode. 
To access the installation menu:
1 Turn the TV on.
2 On the remote, press the Menu button.
3 From the OSD, select Setup => Time.
4 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.
Panel faults
Problem: Line
Solution: Change LCD panel.
Problem: Scrape on the LCD panel
Solution: Change LCD panel or change Polarizer
Problem: Mura (cloudiness)
Solution: Change LCD panel
Problem: LCD crack
Solution: Change LCD panel
Problem: Scrape on the LCD panel 
Solution: Change LCD panel
Posted By: FRANK at 04:19
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