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 !

Tuesday 5 February 2019

JVC TH M606 JVC TH M603 – TEST MODE – INITIALIZATION – SUB-WOOFER AMPLIFIER SCHEMATIC – DVD DIGITAL THEATER SYSTEM

JVC TH M606 JVC TH M603 – Test mode – initialization – sub-woofer amplifier schematic – DVD digital Theater System

Test mode – initialization – SMPS and sub-woofer amplifier schematic JVC TH-M606 5.1CH 1000W Home Theater System: STR G6651(switching regulator) – PC123Y22FZ (opto-coupler) – STK413-400
Normal initialization method
initialize according to the following procedures in the following case:
> Just after you upgrade the firmware.
> After you confirm the symptoms that a customer points out. First Initialize, and then confirm whether the symptoms are improved or not.
> After servicing, before returning the main body to a customer. (Initialized main body should be returned to a customer.)
(1) Set the main body at test mode.
(2) Press "PAUSE" key of the main body.
(3) When initialization is completed, "00" and "RDS" is displayed in the FL display.
(4) After this, power switch to off and wait until "See You" to off.
ADJUSTMENT
Test mode setting method
(1) Unplug the power plug.
(2) Insert power plug into outlet while pressing both "PLAY" key and "STANDBY/ON" key of the main body.  "Area code" is indicated at the upper left of display.
(3) To release test mode, press "STANDBY/ON" key of the main body.
NOTE: Each pressing of "MENU" key of the remote controller in test mode changes the mode as follows
Method of displaying version of firmware 
(1) Set the main body at test mode.
(2) Press "MENU" key of the remote controller twice. Then, version number and alphabetical letter of the system controller and the back end are displayed in the FL display as follows.
Full-initialization method
Perform all-initialization according to the following procedures in the following case:
> Just after you exchange the pick-up.
> Just after you exchange the spindle motor.
> Just after you exchange the traverse mechanism base.
NOTE: Perform all-initialization when you exchange the parts above and also when you remove the parts above.
Just after the flap adjustment of the pick-up guide shaft.
(1) Set the main body at test mode.
(2) Press and hold "F.SKIP" key of the main body for more than 1.5 seconds.
(3) When all-initialization is completed, "33" and "RDS" is displayed in the FL display.
(4) After this, power switch to off and wait until "See You" to off.
NOTE: After all-initialization, be sure to perform Device Key Writing.
SMPS and Sub-woofer amplifier schematic: STR G6651(switching regulator) – PC123Y22FZ (opto-coupler) – STK413-400
Click on the schematics to zoom in
Posted By: FRANK at 05:44
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