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 !

Wednesday, 20 March 2019

SHARP LC-32DH510E643 - LCD TV - W/B ADJUSTMENT - INITIALIZATION - LAMP ERROR DETECTION

SHARP LC-32DH510E643 - LCD TV - W/B ADJUSTMENT - INITIALIZATION - LAMP ERROR DETECTION

WHITE BALANCE ADJUSTMENT
  • Condition: AV MODE= Dynamic(backlight at max.).
  • Adjustments reference device: Minolta CA-210
  • Adjustments target: x=0.272, y=0.277
  • High: adjustments spec ±0.001, inspection spec: ±0.002
  • Low: adjustments spec ±0.002, inspection spec: ±0.004
To adjsut W/B, you have to enter its Service Mode option.  To get details about how to enter service mode to this set, refer previous post here.
  1. Press “▼” until selecting “GAMMA” option.
  2. Press “OK”.
  3. “GAMMA” menu appears.
  4. Press “▼” until selecting “MGAMMA RESET”.
  5. Press “►”, to restore default values.
  6. “MGAMMA RESET SUCCESS” appears.
  7. Press “P+” to increase one page.
  8. Press “1”, appears “Internal Adjustments Pattern 1”.
  9. Hold the default value for “MGAMMA G1”. (Note: next, try to get the (x, y) adjustments target,changing “MGAMMA R1” and “MGAMMA B1” as follow).
  10. Press “▼” until selecting “MGAMMA R1”.
  11. Press “◄ ►” until you obtain the desired value.
  12. Press “MENU” to return to previous menu.
  13. Press “▼” until selecting “MGAMMA B1”.
  14. Press “◄ ►” until you obtain the desired value.
  15. Press “MENU” to return to previous menu. (Note: In case of not being possible to achieve the desired (x, y) target, try to get it by changing also the “MGAMMA G1”)
  16. Press “2”, appears “Internal Adjustments Pattern 2”.
  17. Repeat from step 9 to 15 for the “MGAMMA R2” and “MGAMMA B2”.
  18. Press “3”, appears “Internal Adjustments Pattern 3”.
  19. Repeat from step 9 to 15 for the “MGAMMA R3” and “MGAMMA B3”.
  20. Press “4”, appears “Internal Adjustments Pattern 4”.
  21. Repeat from step 9 to 15 for the “MGAMMA R4” and “MGAMMA B4”.
  22. Press “5”, appears “Internal Adjustments Pattern 5”.
  23. Repeat from step 9 to 15 for the “MGAMMA R5” and “MGAMMA B5”.
  24. Press “6”, appears “Internal Adjustments Pattern 6”.
  25. Repeat from step 9 to 15 for the “MGAMMA R6” and “MGAMMA B6”.
  26. Press “▼” until selecting “MGAMMA WRITE”.
  27. Press “►”, to save the new values.
  28. “MGAMMA WRITE SUCCESS” appears
For activating the W/B flag, only is necessary to send the order MGAMMA WRITE. After this action, the “W” W/B flag will change to “1”.
INITIALIZATION TO FACTORY SETTING
Caution: When the factory settings have been made, all user setting data, including the channel settings, are initialized.  (The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.
  • Enter in Service mode.
  • Press “▼” or “▲” key until selecting INIT.
  • Press OK key.
  • INIT menu appears and “Factory init” option is selected.
  • Press “◄” or “►” until selecting the option desired (EURO/RUSSIA/SWEDEN/UK/EAST EUROPE).
  • Press OK key and initialization starts.
OK, EURO message appears for EURO option when the setting is complete.
OK, RUSSIA message appears for RUSSIA option when the setting is complete.
OK, SWEDEN message appears for SWEDEN option when the setting is complete.
OK, UK message appears for UK option when the setting is complete.
OK, EAST EUROPE message appears for EAST EUROPE option when the setting is complete.
Note: Never turn the power off during initialization.
  • To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
The following settings will be back to their factory ones.
  1. User settings
  2. Channel data (e.g. broadcast frequencies)
  3. Maker option setting
  4. Password data.
LAMP ERROR DETECTION
This LCD color television has a function (lamp error detection) to be turned OFF the TV set automatically for safety criteria when the lamp or lamp circuit is abnormal.
If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the following occurs:
  • The TV set is turned OFF automatically 20 seconds after it is turned ON by the user.  (The power LED on the front side of TV turns from green to red)
  • If the situation “stated above.” happens 5 times sequentially, it becomes impossible to turn on the power.  (The power LED turns from green to red and keeps blinking in red).
COUNTERMEASURES
  • Checking with [L Error Check Off]. Repair the problem that produces the LAMP ERROR. The TV remains with power LED blinking until K mode is forced by local keyboard, in order to disable the LAMP ERROR detection. To disable the LAMP ERROR feature is necessary enter in K mode by pressing “VOL DOWN” and “à[ ]” keys at same time when the AC cord is plugged in.
  • Resetting the LAMP ERROR counter. After the lamp and lamp circuit are found out of trouble, the LAMP ERROR counter should be reset. If a LAMP ERROR is detected five consecutive times, the power cannot be turned on.
Method 1: Using the cursor (UP/DOWN) key, move to the cursor to [L Error Reset] on Line 6 of ETC Menu. With the cursor (LEFT/RIGHT) keys reset the value to “0”.
Method 2: In the case the TV is not blocked (less than 5 consecutive errors), switch on the Set. After 30 minutes working, the LAMP ERROR counter will be reset automatically.
Posted By: FRANK at 04:53
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