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 !

Saturday, 14 December 2019

PHILIPS 32PFL3505D/F7 (SERIAL NO.: DS1A, DS2A, DS3A, YA1A) LCD TV SERVICE MODE ADJUSTMENTS, SMPS AND BACK-LIGHT INVERTER SCHEMATIC

32PFL3505D/F7 Philips (Serial No.: DS1A, DS2A, DS3A, YA1A) LCD TV service mode adjustments, SMPS and back-light inverter schematic

Philips 32PFL3515D/F7 PHILIPS (Serial No.: YA1A), 32PFL3505D/F7 PHILIPS (Serial No.: DS4A), 32PFL3505D/F7 PHILIPS (Serial No.: DS8A, DS9A, YA2A, YA4A)
Service mode
1. Turn the power on.
2. Press [MENU] button to display Setup menu.
3. Select the “Features”.
4. Select “Current Software Info”.
5. Press [0], [6], [2], [5], [9], [6] and [Info] buttons on the remote control unit in this order. The service mode screen appears.
Purity Check Mode
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the remote control unit, the display changes as follows:
1. Operate the unit for more than 60 minutes. 2. Set the colour analyser and bring the optical receptor to the centre on the LCD-Panel surface after zero point calibration as shown above. Note: The optical receptor must be set perpendicularly to the LCD Panel surface. 3. Enter the Service mode. 4. Press [3] button on the remote control unit. 5. Press [CHANNEL UP/DOWN] buttons on the remote control unit so that the colour analyser value becomes minimum. 6. To cancel or to exit from the VCOM Adjustment, press [PREV CH] button.
White Balance Adjustment
To mix red, green and blue beams correctly for pure white.
Symptom of Maladjustment: White becomes bluish or reddish.
1. Operate the unit for more than 60 minutes.
2. Input the White Raster(70%=70IRE, 40%=40IRE)
3. Set the colour analyser to the CHROMA mode and bring the optical receptor to the centre on the LCD-Panel surface after zero point calibration.
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
4. Enter the Service mode. Press [VOLUME DOWN] button on the remote control unit and select “C/D” mode.
 [CUTOFF] Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.
 [DRIVE]
Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment. 6. In each colour mode, press [CHANNEL UP/DOWN] buttons to adjust the values of colour. 7. Adjust Cutoff and Drive so that the colour temperature becomes 12000°K (x= 0.272 / y=0.278 ±0.005). 8. To cancel or to exit from the White Balance Adjustment, press [PREV CH] button.
To initialise the LCD TV The purpose of initialisation is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialised. To put the program back at the factory-default, initialise the LCD TV using the following procedure. 1. Turn the power on. 2. Enter the service mode. - To cancel the service mode, press [POWER] button on the remote control unit. 3. Press [INFO] button on the remote control unit to initialise the LCD television. 4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initialising is completed.
SMPS [Power board] schematic
Back-Light inverter schematic
Purity check mode
Firmware Update
There are two states (the User Upgrade and the Factory Upgrade) in firmware update.
User Upgrade:  Upgrade the firmware only. The setting values are not initialised.
Factory upgrade: Upgrade the firmware and initialise the setting values.
The identification of User Upgrade and Factory Upgrade are done by the filename.
1. Turn the power off and unplug the AC Cord.
2. Insert the USB storage device to the USB port.
3. Plug the AC cord in the wall outlet and turn the power on.
4. The update will start and the following will appear.
If the screen isn’t displayed, repeat from step 1.
5. When the firmware update is completed, the following will appear on the screen.
Remove the USB storage device from the USB port.
Turn the power off and turn the power on again.
Note: When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" colour will change to green from red when initialising is completed.