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, 20 March 2019

PHILIPS 42PF7320 - PLASMA TV - SERVICE ALIGNMENT MODE [SAM] - DISPLAY OPTION CODE - DETAILS

PHILIPS 42PF7320 - PLASMA TV - SERVICE ALIGNMENT MODE [SAM] - DISPLAY OPTION CODE - DETAILS




                                                          CHASSIS OVERVIEW              

SERVICE ALIGNMENT MODE [SAM]

  • To perform (software) alignments.
  • To change option settings.
  • To easily identify the used software version.
  • To view operation hours.
  • To display (or clear) the error code buffer.
TO ACTIVATE SAM MODE
Via a standard RC transmitter: key in the code “062596” directly followed by the “INFO” button.
After activating SAM with this method a service warning will appear on the screen, you can continue by pressing the red button on the RC.
CONTENTS OF SAM
Hardware Info.
  • A. VIPER SW Version. Displays the software version of the VIPER software (main software) (example: BX23U-1.2.3.4_12345 = AAAB_X.Y.W.Z_NNNNN).
  • [AAAA] = the chassis name.
  • [B] = the region: A= AP, E= EU, L= Latam, U = US.
  • [X.Y.W.Z] = the software version, where X is the main version number (different numbers are not compatible with one another) and Y is the sub version number (a higher number is always compatible with a lower number). The last two digits are used for development reasons only, so they will always be zero in official releases.
  • [NNNNN] = last five digits of 12nc code of the software.
  • B. SBY PROC:  Version.Displays the software version of the stand-by processor.
  • C:  Production Code. Displays the production code of the TV, this is the serial number as printed on the back of the TV set. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee in a possibility to do this.
  • Operation Hours. Displays the accumulated total of  operation hours (not the stand-by hours). Every time the TV is switched "on/off", 0.5 hours is added to this number.
  • Errors. (Followed by maximal 10 errors). The most recent error is displayed at the upper left.
  • Defective Module. Here the module that generates the error is displayed. If there are multiple errors in the buffer, which are not all generated by a single module, there is probably another defect. It will then display the message “UNKNOWN” here.
  • Reset Error Buffer.When you press “cursor right” and then the “OK” button, the error buffer is reset.
  • Alignments.This will activate the “ALIGNMENTS” sub-menu.
  • Dealer Options.Extra features for the dealers.
Options.Extra features for Service.
  • Initialise NVM.When an NVM was corrupted (or replaced) in the former EMG based chassis, the microprocessor replaces the content with default data (to assure that the set can operate). However, all preferences and alignment values are gone now, and option numbers are not correct. Therefore, this was a very drastic way. In this chassis, the procedure is implemented in another way: The moment the processor recognizes a corrupted NVM, the “initialize NVM” line will be highlighted. Now, you can do two things (dependent of the service instructions at that moment): à Save the content of the NVM via ComPair for development analysis, before initializing. This will give the Service department an extra possibility for diagnosis (e.g. when Development asks for this). à Initialize the NVM (same as in the past, however now it happens conscious)
  • When you have a corrupted NVM, or you have replaced the NVM, there is a high possibility that you will not have picture any more because your display option is not correct. So, before you can initialize your NVM via the SAM, you need to have a picture and therefore you need the correct display option. To adapt this option, use ComPair. The correct HEX values for the options can be found in the table below.
  • Store.All options and alignments are stored when pressing “cursor right” and then the “OK”-button
  • SW Maintenance. – SW Events. Not useful for service purposes. In case of specific software problems, the development department can ask for this info.
  • HW Events. Not functional at the moment this manual is released, description will be published in an update manual if the function becomes available.
TO NAVIGATE
  • In SAM, you can select the menu items with the “CURSOR UP/DOWN” key on the RC-transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the “CURSOR UP/DOWN” key to display the next/previous menu items.
  • With the “CURSOR LEFT/RIGHT” keys, it is possible to: – (De) activate the selected menu item.  – (De) activate the selected sub-menu.
TO EXIT
Use one of the following methods:
  1. Press the “MENU” button on the RC-transmitter.
  2. Switch the set to STAND-BY via the RC-transmitter.
Note: As long as SAM is activated, it is not possible to change a channel. This could hamper the White Point alignments because you cannot choose your channel/frequency any more. Workaround: after you have sent the RC code “062596 INFO” you will see the service-warning screen, and in this stage it is still possible to change the channel (so before pressing the “OK” button).

DISPLAY OPTION CODE OVERVIEW
Click on PICS to Enlarge
Posted By: FRANK at 06:53
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