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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Wednesday 27 March 2019

PHILIPS 29PT6441 30PW6341 SERVICE DEFAULT MODE _ SERVICE ADJUSTMENT MODE

PHILIPS 29PT6441 _ 30PW6341 _ SERVICE DEFAULT MODE _ SERVICE ADJUSTMENT MODE



TO ENTER SERVICE DEFAULT MODE [SDM]
To enter SDM mode, use one among the following methods.

  • 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 jumper wires 9252 and 9275 on the family board and apply AC power. Then press the power button (remove the short after start-up).

Caution: Entering SDM by shorting wires 9252 and 9275 will override the +8Vprotection.  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.

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.


TO NAVIGATE
  • 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.
TO EXIT SDM MODE
  • Switch the set to STANDBY by pressing the POWER button on the remote control transmitter or the television set.
  • If you turn the television set off by removing the AC power (i.e., unplugging the television) without using the POWER button, the television set will remain in SDM when AC power is re-applied, and the error buffer is not cleared.
SERVICE ALIGNMENT MODE [SAM]

To enter SAM, use one of the following methods:
  • Press the following key sequence on the remote control transmitter: “062596' directly followed by the OSD/STATUS button (do not allow the display to time out between entries while keying the sequence).
  • Or via compare.
After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.


MENU EXPLANATION
  1. LLLLL. This represents the run timer. The run timer counts normal operation hours, but does not count standby hours.
  2. AAABCD-X.Y. This is the software identification of the main microprocessor:

A = the project name (L04).
B = the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM.
C = the software diversity:
Europe: T= 1 page TXT, F= Full TXT, V= Voice control.
LATAM and NAFTA: N= Stereo non-dBx, S= Stereo dBx.
Asian Pacific: T= TXT, N= non-TXT, C= NTSC.
ALL regions: M= mono, D= DVD, Q= Mk2.
D = the language cluster number.
X = the main software version number (updated with a major change that is incompatible with previous versions).
Y = the sub software version number (updated with a minor change that is compatible with previous versions).
  • SAM. Indication of the Service Alignment Mode.
  • Error Buffer. Shows all errors detected since the last time the buffer was erased.  Five errors possible.
  • Option Bytes. Used to set the option bytes. See “Options” in the Alignments section for a detailed description. Seven codes are possible.
  • Clear. Erases the contents of the error buffer. Select the CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared.
  • Options. Used to set the option bits. See “Options” in the Alignments section for a detailed description.
  • AKB. Used to disable (Off) or enable (On) the “black current loop” (AKB= Auto Kine Bias).
  • Tuner. Used to align the tuner. See “Tuner” in the Alignments section for a detailed description.
  • White Tone. Used to align the white tone. See “White Tone” in the Alignments section for a detailed description.
  • Geometry. Used to align the geometry settings of the television. See “Geometry” in the Alignments section for a detailed description.
  • Audio. No audio alignment is necessary for this television set.
  • NVM Editor. Can be used to change the NVM data in the television set.
  • ComPaIr. Can be used to switch on the television to In System Programming (ISP) mode, for software uploading via ComPair.

Caution: When this mode is selected without ComPair connected, the TV will be blocked. Remove the AC power to reset the TV.

TO NAVIGATE
  • In SAM, select menu items with the MENU UP/DOWN keys on the remote control transmitter. The selected item will be highlighted. When not all menu items fit on the screen, use the MENU UP/DOWN keys to display the next / previous menu items.
  • With the MENU LEFT/RIGHT keys, it is possible to:
  • Activate the selected menu item.
  • Change the value of the selected menu item.
  • Activate the selected submenu.
  •  In SAM, when you press the MENU button twice, the set will switch to the normal user menus (with the SAM mode still active in the background). To return to the SAM menu press the MENU or STATUS/EXIT button.
  •  When you press the MENU key in while in a submenu, you will return to the previous menu.
TO STORE SETTINGS 
  • To store the settings changed in SAM mode, leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set.
TO EXIT SAM MODE
  • Switch the set to STANDBY by pressing the POWER button on the remote control transmitter or the television set.
  • If you turn the television set “off” by removing the AC power (i.e., unplugging the television) without using the POWER button, the television set will remain in SAM when AC power is re-applied, and the error buffer is not cleared.
CUSTOMER SERVICE MODE [CSM]
 Purpose
  • The Customer Service Mode shows error codes and information on the TV's operation settings. The call center can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call center 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.
TO ENTER CSM MODE
  • 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:


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 centers (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 Color 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.
TO EXIT
To exit CSM, use one of the following methods:
  1. Press the MENU, STATUS/EXIT, or POWER button on the remote control transmitter.
  2. Press the POWER button on the television set.
  • Or via ComPair
Posted By: FRANK at 04:36
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