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 !

Friday, 6 November 2020

PHILIPS MCM166 MICRO SYSTEM SCHEMATIC DIAGRAM – USING ICS TFA9842, ET2314 OR BA5417 AND DISASSEMBLE PROCEDURE

 

Only for MCM166-12-55-05-77

This is previous generation models.

The serial number is: 

Before LM011039227020 (only for-12)

Before LM001039092086 (only for -55-77)

Rated Output Power 2X5W RMS

Speaker Driver 3.5”woofer+0.8” tweeter

Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent.

Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it.  This to avoid that little particles make scratches on the lens.

The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function.  Clean the lens gently (don’t press too hard) with a soft and clean cotton bud moistened with the special lens cleaner.



Disassembly procedure


SCHEMATIC. Used Amplifier IC: TFA9842

CIRCUIT DIAGRAM - MCU BOARD




SCHEMATIC, Used Amplifier IC: ET2314 or BA5417

Disassembly procedure


Main board circuit diagram.