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, 11 March 2019

FUNAI 46FD753P/10 SERVICE MODE AND POWER SUPPLY CIRCUIT

FUNAI 46FD753P/10 SERVICE MODE AND POWER SUPPLY CIRCUIT




Service mode:
1. Turn the power on.
2. Press [SOURCE], [2], [5], [8] and [0] buttons on the remote control unit in this order to enter the service mode. 
The Factory Setting menu appears in the screen
White Balance Adjustment
Purpose: To mix red and blue beams correctly for pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
1. Operate the unit for more than 60 minutes.
2. Input the White Raster of composite video signal to AV (70%=70IRE, 40%=40IRE).
3. Enter the service mode.
4. Press [0] button on the remote control unit to display the “White Balance” menu.
Additional step:
A1. Press [2] button on the remote control unit to select the “Colour Temp” menu.
A2. Press [<] or [>] button to select the "Normal". 5. Select a color mode (“3 R-GAIN”, “5 B-GAIN”, “6 R-OFFSET” or “8 B-OFFSET”).
6. Set the color analyzer at the CHROMA mode and zero point calibration. Bring the optical receptor pointing at the center of the LCD-Panel.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
7. In each color mode, press [<] or [>] button to adjust the color temperature becomes 12000°K (x= 0.272 / y= 0.278 ±0.015).
8. To cancel or to exit from the White Balance Adjustment, press [BACK] button.
Firmware Update Procedure
[Preparation]
1. Prepare USB storage device.
2. Copy F/W-file to USB storage device.
Note: Make sure to use the blank USB Storage.
3. Make sure that the F/W-file’s name is “LC11_308B_FUNAI.bin”.
[Update procedure]
1. Turn the power on.
2. Insert USB storage device with F/W to TV set.
3. Press the [MENU] button on the remote control unit to display Menu.
4. Select “SETUP”.
5. Select “Software Update (USB)” and press [OK] button.
The message “Are you sure?” will appear in the screen.
6. Press [LEFT] button to select “YES”.
7. Updating starts.
Note: Do not turn off the TV set and do not remove the USB storage device while this procedure.
8. The TV set will go off and turn back on automatically when update completes.
Additional step:
A1. Enter the service mode.
A2. Select "Init TV" and press [OK] button. The TV set will go off and go back on automatically.
A3. Adjust the white balance.
[Confirmation of update]
1. Enter the service mode.
2. Check the “Checksum” section.
POWER SUPPLY CIRCUIT 

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Posted By: FRANK at 13:05
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