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, 1 April 2019

HOW TO ENTER CSM (CUSTOMER SERVICE MODE) AND SET THE PICTURE - PHILIPS 22PF9946 - LCD TV

HOW TO ENTER CSM (Customer Service Mode) and SET THE PICTURE - PHILIPS 22PF9946 - LCD TV

Philips 23PF9946/79 _ Philips 23PF9946/98 _ Menu text not sharp enough _ B/W picture - Snowy picture - White line around the picture elements - Picture too dark or bright. [Customer Adjustments]
SERVICE MODES
Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between the call centre and the customer.This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version readout for all chassis.
Service Default Mode (SDM)
Purpose
* To create a predefined setting for measurements to be made.
* To override software protections.
* To start the blinking LED procedure.
* To inspect the error buffer.
* To check the life timer.
HOW TO ENTER SDM
* Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).
* Short the  "Service" jumpers on the TV board during cold start and apply mains (see Figure "Service jumpers"). Then press the mains button (remove the short after start-up).
Caution: Entering SDM by shorting "Service" jumpers will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could damage the television set.
* Or via compare (Advanced)
After entering SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Alignment Mode.
How to navigate
Use one of the following methods:
* When you press the MENU button on the remote control, the set will switch on the normal user menu in the SDM mode.
* On the TV, press and hold the VOLUME DOWN and press the CHANNEL DOWN for a few seconds, to switch from SDM to SAM and reverse.
How to exit
Switch the set to STANDBY by pressing the ‘POWER’ button on the remote control transmitter or press the 'POWER' switch on the set.
Customer Service Mode (CSM)
Purpose
The Customer Service Mode shows error codes and information on the TV’s operation settings. The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call centre to diagnose problems and failures in the TV set before making a service call.
The CSM is a read-only mode; therefore, modifications are not possible in this mode.
How to enter
To enter CSM, press the following key sequence on the remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence).  Upon entering the Customer Service Mode, the following screen will appear
How to exit
To exit CSM, use one of the following methods:
* Press the MENU, STATUS/EXIT, or POWER button on the remote control transmitter.
* Press the POWER button on the television set.
Menu explanation
1 Indication of the decimal value of the operation hours counter, Software identification of the main microprocessor (see "Service Default or Alignment Mode" for an explanation), and the service mode (CSM= Customer Service Mode).
2 Displays the last five errors detected in the error code buffer.
3 Displays the option bytes.
4 Displays the type number version of the set.
5 Reserved item for P3C call centres (AKBS stands for Advanced Knowledge Base System).
6 Indicates the television is receiving an "IDENT" signal on the selected source. If no "IDENT" signal is detected, the display will read "NOT TUNED"
7 Displays the detected Colour system (e.g. PAL/NTSC).
8 Displays the detected Audio (e.g. stereo/mono).
9 Displays the picture setting information.
10 Displays the sound setting information.
Problems and Solving Tips Related to CSM
Picture too dark or too bright
If:
* The picture improves when you press the AUTO PICTURE button on the remote control transmitter, or
* The picture improves when you enter the Customer Service Mode,
Then:
1 Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode.
2 Press the MENU button on the remote control transmitter.  This brings up the normal user menu.
3 In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu.
4 Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu.
5 Use the MENU UP/DOWN keys (if necessary) to select BRIGHTNESS.
6 Press the MENU LEFT/RIGHT keys to increase or decrease the BRIGHTNESS value.
7 Use the MENU UP/DOWN keys to select PICTURE.
8 Press the MENU LEFT/RIGHT keys to increase or
decrease the PICTURE value.
9 Press the MENU button on the remote control transmitter twice to exit the user menu.
10  The new PERSONAL preference values are automatically stored.
White line around picture elements and text
If:
The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then:
1 Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode.
2 Press the MENU button on the remote control transmitter.  This brings up the normal user menu.
3 In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu.
4 Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu.
5 Use the MENU UP/DOWN keys to select SHARPNESS.
6 Press the MENU LEFT key to decrease the SHARPNESS value.
7 Press the MENU button on the remote control transmitter twice to exit the user menu.
8 The new PERSONAL preference value is automatically stored.
Snowy picture
Check CSM line 6. If this line reads “Not Tuned”, check the following:* Antenna not connected. Connect the antenna.* No antenna signal or bad antenna signal. Connect a proper antenna signal.* The tuner is faulty (in this case line 2, the Error Buffer line, will contain error number 10). Check the tuner and replace / repair the tuner if necessary.
Black and white picture
If:
The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then:
1 Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode.
2 Press the MENU button on the remote control transmitter.  This brings up the normal user menu.
3 In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu.
4 Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu.
5 Use the MENU UP/DOWN keys to select COLOUR.
6 Press the MENU RIGHT key to increase the COLOUR value.
7 Press the MENU button on the remote control transmitter twice to exit the user menu.
8 The new PERSONAL preference value is automatically stored.
Menu text not sharp enough
If:
The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then:
1 Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode.
2 Press the MENU button on the remote control transmitter.  This brings up the normal user menu.
3 In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu.
4 Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu.
5 Use the MENU UP/DOWN keys to select PICTURE.
6 Press the MENU LEFT key to decrease the PICTURE value.
7 Press the MENU button on the remote control transmitter twice to exit the user menu.
8 The new PERSONAL preference value is automatically stored.
Posted By: FRANK at 00:53
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