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, 27 February 2019

PHILIPS ANUBIS FIGHTER CHASSIS TVs - SERVICE MODE & REPAIR TIPS

PHILIPS ANUBIS FIGHTER CHASSIS TVs - SERVICE MODE & REPAIR TIPS

The I2C processor can detect the malfunctions of all I2C controlled ICs by Serial Clock and Serial Data.  Maximum three error codes can be detected and displayed at switch ON the set.  Description of error codes are

1. PLL TUNER => TUNER
2. EPROM CHECKSUM => SET IS NOT CORRECTLY CONFUGURED.
3. SIMULCAST TUNING => TDA 8842
4. 2CS STEREO DECODER => TDA9840
5. INTERNAL RAM ERROR => IC7600
6. EEPROM => IC7710
7. NICAM STEREO DECODER => SAA7280
8. NOT USED.

To enter the service mode to these sets, short circuit [m28 & m29] near the microprocessor for a short moment while switchon on the TV set.

An "S" on screen will be displayed, indicates that the set is in service mode.  Be very carefull when short circuit these points.

In service default condition, all controls to set will be 50% except volume.  Volume will be 25%.  VST will be at programme-1 and PLL will be tuned to 475.25MHz.  All DC voltages indicated in its service manual are mesured in service mode default condition.

To exit from service mode, the short circuit between pins [M28 & M29] should be removed.  Only an experienced service technician could do service mode adjustments to these sets.

At the printed indication on the microprocessor, the last four digits [AABB] indicates the software number [cluster] and version.The [AA] indicates the software number, and "BB] indicate the masking and verson of that particular software. [for example if these four digits are 0234, the software number is 02, and '3' is masking and '4' is the version.

Functions of the Service Service Mode are:

Display the software version and version, set all software controlled options, display error codes detected, and erase error code if if any detected in the past.
In service mdoe, following menu will be displayed.

ANUBIS-SAFHV 1.9
ADR XXX DATA XXX

The addreses where the option sttings are stored are addresses 239 upto and including 255.  The default data recorded will differ from version to version.

Changing the options settings.
* "Control "-/+" .  By pressing "-/+" control buttons, the value behind AD or DATA will be highlighted sequently.
** "Pro +/-. By pressing "Pro +/-" buttons, the highlited value can be adjusted.
*** "0-9".  By pressing "0 & 9" buttons, the highlited values can be directly keyed into.
**** "Store".  After every change after data, it should be stored into memory by "Store" command.
Posted By: FRANK at 05:29
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