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 13 March 2019

SHARP LC26GA3E SERVICE MODE

SHARP LC26GA3E  SERVICE MODE


                      The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.

After replacement of any PWB unit and/or IC for repair, please note the following.
When replacing the PWB and IC, pay attention to the following precautions.
When replacing units below, order those where the software has been written.
DVI unit : DUNTKC595FE50
CPU unit : DUNTKC427FE20
LCD CONTROLLER unit : DUNTKC268FE86
Upgrading of each microprocessor software
Caution: Never "POWER OFF" the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
Software version upgrade
This unit has main and monitor microcomputer softwares.
These can be rewritten via a general-purpose SD memory card.
The procedures to rewrite the main and monitor microcomputer softwares are described below.
Main software version upgrade
SD memory card of 16MB or higher capacity
 PC running on Windows 98/98SE/ME/2000/XP operating system
 SD memory card reader/writer with USB connectivity and PC card adapter
SD memory card formatting software

Entering and exiting the adjustment process mode (SERVICE)

1. Before entering the adjustment process mode, press the "TV RESET" button or execute the AV position RESET in the video adjustment menu.

2. Pull out the AC cord to turn off the TV.

3. While holding down the "VOL (–)" and "INPUT" keys at a time, press the POWER switch of the main unit to turn on the power.
The letter " K " appears on the screen.

4 Press the "VOL (–)" and CH (V) keys at the same time. When multiple lines of blue letters are displayed on the screen, the unit has entered the process adjustment mode. If the unit does not enter the process adjustment mode (if the same display as the normal start appears), try again.

5. To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
Posted By: FRANK at 04:41
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