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!

©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 !

Wednesday, 20 March 2019

PHILIPS - A8.0E - CHASSIS CTV - ADJUSTMENTS _SAM_SDM

PHILIPS - A8.0E - CHASSIS CTV - ADJUSTMENTS _SAM_SDM


SAM [SERVICE DEFAULT MODE]
  • By transmitting the "DEFAULT" command with the RC7150 Dealer Service Tool (this works both while the set is in normal operation mode or in the SAM)
  • By shorting jumpers 9040 and 9041 on the monocarrier with a screwdriver while switching on the set.
  • By temporarily shorting jumper 9040 and 9041 when switching the set on, the 5V protection is disabled.
CAUTION:  Overriding the 5V protection should only be used for a short period of time.
Blinking LED procedure
  • When an error code is present in the error buffer, the LED will blink the number of times, equal to the value of the most current error code.
  • For recognition of the SDM, "SDM" is displayed at the upper right side of the screen.
SAM [SERVICE ALIGNMENT MODE]
  • By pressing the "VOLUME +" and "VOLUME -" buttons on the local keyboard simultaneously the set switches from SDM to SAM.
  • The purpose of the SAM is to do alignments, option settings, display/clear the error code buffer and reload default values.
Entering SAM:
  • By transmitting the "ALIGN" command with the RC7150 Dealer Service Tool (this works both while the set is in normal operation mode or in the SDM)
  • By pressing the "VOLUME +" and "VOLUME -" key on the local keyboard simultaneously when the set is in SDM.
TO EXIT SAM:
  • Switch the set to Standby (the error buffer will be erased)
  • Note: When the mains power is switched off while the set is in SAM, the set will enter to SDM immediately when the mains is switched on again.
  • In the SAM the following information is displayed on the screen:
SAM MENU
EXPLANATIONS
  1. Operation hours timer (hexadecimal)
  2. Software identification of the main micro controller (A80BBC-X.Y)
  • A80 is the chassis name for A8.0E
  • BBC is 2 letter and 1 digit combination to indicate the software type and the supported languages:
  •  X = (main version number)
  •  Y = (subversion number.
3.  Software identification of a separate Teletext or EPG micro controller (DDDD E FF)
4.  Error buffer (6 errors possible)
5.  Option bytes (7 codes possible), summary of options are explained below
6.  Sub menus are listed in a scroll-menu.
With the cursor LEFT/RIGHT keys, it is possible to:
  • (de)activated the selected menu item (e.g. LOAD DEFAULT)
  • change the value of the selected menu item
  • activate the selected submenu (e.g GEOMETRY)
Access to normal user menu
Pressing the "MENU" button on the remote control switches between the SDM and the normal user menus (with the SAM mode still active in the background). Pressing the MENU key in a sub-menu will go to the previous menu.
ERASE BUFFER
Erasing the contents of the error buffer. Select the ERASE BUFFER menu item and press the MENU RIGHT key. The contents of the error buffer is cleared.
RELOAD DEFAULT
Reloading memory default values. All default settings can be reloaded into the memory (EEPROM). Select the RELOAD DEAULT menu item and press the MENU RIGHT key. Select LOAD NOW and press MENU RIGHT to reload all settings, then switch the set to STANDBY. The default settings are activated when the set is switched on. CAUTION! Use this menu with extreme care. Otherwise customer settings will be lost.
By transmitting the "DEFAULT" command with the RC7150 Dealer Service Tool (this works both while the set is in normal operation mode or in the SAM)
By shorting jumpers 9040 and 9041 on the monocarrier with a screwdriver while switching on the set.
By temporarily shorting jumper 9040 and 9041 when switching the set on, the 5V protection is disabled.
CAUTION ! Overriding the 5V protection should only be used for a short period of time.
Blinking LED procedure
When an error code is present in the error buffer, the LED will blink the number of times, equal to the value of the most current error code.
For recognition of the SDM, "SDM" is displayed at the upper right side of the screen
Posted By: FRANK at 03:10
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