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 !

Monday 25 March 2019

SANYO LCD 27XL2 _ LCD 27XL2B _ PROTECTION - HOW TO ENTER SERVICE MODE - OPTION SETTING AFTER REPLACING MEMORY IC - MEMORY INITIALIZATION

SANYO LCD 27XL2 _ LCD 27XL2B _ PROTECTION - HOW TO ENTER SERVICE MODE - OPTION SETTING AFTER REPLACING MEMORY IC - MEMORY INITIALIZATION


AFTER REPLACING MEMORY IC
  • The memory IC (IC802) stores the option data of TV set and service adjustments data for each circuit, therefore, when the memory IC is replaced, it should be programmed to the following settings.
  • Press and hold the MUTE button on the remote control and press the CHANNEL DOWN (P▼) button on the front control panel of the TV. The option window will appear on the screen.
OPTION SETTING MENU
==========================
ON Timer OFF
Plug & Play ON
Welcome Text ON
BBE ON
Auto Volume ON
Bass Expander ON
16:9Mode ON
Noise Reduction ON
Country EU
Raster Rotation OFF
SESA OFF
Digital RC OFF
Light Monitoring OFF
Video Mute OFF
==========================
OPTION SETTING PROCEDURE
  1. Select desired option item by pressing the CHANNEL UP or DOWN button.
  2. To switch the option mode, use the VOLUME + or - button.
  3. The data which is set in the option mode is stored into the memory IC automatically.
  4. To Exit from the Option Mode:  Press the MENU button or turn off the TV set by pressing the Power ON/OFF button.
           The following table shows the available option items and default setting mode.

Option Items
Mode
Default / Description
ON Timer
ON or OFF
Default “OFF” / Disable or enable ON Timer function.
Plug & Play
ON or OFF
Default “ON” / Disable or enable Plug & Play function.
Welcome Text
ON or OFF
Default “ON” / Display message when first set up.

BBE

ON or OFF
Default “ON” / Disable or enable BBE function on Sound menu.

Auto Volume

ON or OFF
Default “ON” / Disable or enable “Auto Volume Level” function on Sound menu.

Bass Expander

ON or OFF
Default “ON” / Disable or enable Bass Expander on Sound menu.
16:9 Mode
ON or OFF
Default “ON” / 16:9 mode.

Noise Reduction

ON or OFF
Default “ON” / Disable or enable Noise Reduction function on Setting menu.
Country
UK. UK&IRE or EU
Default “EU” / Selection of TV system.

Raster Rotation

ON or OFF
Default “OFF” / Disable or enable Raster Rotation function.
SESA
ON or OFF
Default “OFF”.

Digital RC

ON or OFF
Default “OFF” / Disable or enable use of Digital RC hand-set.

Light Monitoring

ON or OFF
Default “OFF” / Disable or enable Light Monitoring function.
Video Mute
ON or OFF
Default “OFF” / Disable or enable Video Mute function.
SERVICE MODE
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments.
  • Press and hold the SOUND button of the remote control and press the CHANNEL DOWN (P▼)button on the front control panel of the TV, and the Main menu of service mode will be displayed.
  • To select Service Section: Press the Cursor▲/▼  button on the remote control hand set, and press the VOLUME + button to enter the Sub menu.
  • To change data value: Select service item by pressing the Cursor▲/▼and change data value by pressing the VOLUME [+] or[ - ]  button.
  • To return to the Main menu, press the MENU button.
  • To Exit from the Service Menu Press the MENU button repeatedly or turn off the TV set by pressing the Power ON/OFF button.
TO INITIALIZE
  • To initialize the Memory IC (IC802), press and hold the IMAGE button on the remote control, then press the CHANNEL DOWN button on the front panel of the TV set and then turn the Mains switch off and on. The initialization is now completed.
  • When initialized the memory IC and all of the setting data (option data and service adjustment data) stored in the IC are reset to the default value. It is necessary to set the option settings and readjust the service adjustments.
PROTECTION
  • This TV set has a built-in power supply protection circuit.
  • It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs during TV reception, the TV set goes to the stand-by mode.
  • When operating the Protection Circuit, the Stand-by and Power Indicator will blink.
Releasing the protective circuit and restoring power supply
To release the protective circuit and restore power supply, disconnect the AC cord for a short time. This will work only if the power supply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and the circuit will have to be repaired.
Posted By: FRANK at 03:19
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