Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 !

Sunday, 15 December 2019

SONY STRDE245-HOW TO ENTER THE FACTORY MODE, ADJUSTMENTS, SCHEMATIC

Sony FM Stereo FM-AM Receiver - STR-DE245/DE345STR-DE245/DE345

Australian Model – STRDE245 – STRDE345

SOFTWARE VERSION DISPLAY MODE
* The software version is displayed.STRDE245/STRDE345

US, Canadian and Chinese Models

STRDE345
* Procedure:
While depressing the TUNER and the VIDEO buttons simultaneously, press the power [Power] button to turn on the main power. The model name, destination and the software version are displayed.

FLUORESCENT INDICATOR TUBE TEST MODE
* All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another.
* Procedure:
While depressing the TV/SAT and the CD buttons simultaneously, press the power [Power] button to turn on the main power.

* All fluorescent segments are tested.
* Procedure:
While depressing the TV/SAT and the CD buttons simultaneously, press the power [Power] button to turn on the main power.

Press the VIDEO button, confirm display

BASS BOOST, MUTING, SET UP and NAME LED turn on.

Press the VIDEO button, confirm display [for the second time]

SOUND CONTROL LEVEL, SOUND CONTROL SUR and SOUND FIELD LED turn on.

Press the VIDEO button, confirm display. BASS BOOST, MUTING, SET UP and NAME LED turn on. Press the VIDEO button, All segments turn off. SOUND CONTROL LEVEL, SOUND CONTROL SUR and SOUND FIELD LED turn on.

Press the VIDEO button, All segments turn off. Every pressing of the VIDEO button turns on each segment one after another in the following order.(Not only the VIDEO button, but also the other buttons such asTV/SAT, MD/TAPE, CD, TUNER can be used.)

FACTORY SET MODE (Service Mode)
* All preset contents are reset to the default setting.
* Procedure:
While depressing the VIDEO and the CD buttons simultaneously, press the power [Power] button to turn on the main power. The message FACTORY appears and the present contents are reset to the default values.

ALL CLEAR MODE
* All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.
* Procedure:
While depressing the TUNER and the MD/TAPE buttons simultaneously, press the power [Power] button to turn on the main power. The message INITIAL appears and initialization is performed.

SURROUND CLEAR MODE
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon completion of repair.
* Procedure:
While depressing the SOUND FIELD ON/OFF button, press the power [Power] button to turn on the main power. The message SURR CLR appears and initialization is performed.

AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE
* Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.
* Procedure:
Set the FUNCTION to AM. Turn off the main power.
While depressing the TUNING+ button or the PRESET+ button, press the power [Power] button to turn on the main power. Either the message AM 9 k STEP or AM 10 k STEP appears. Select the desired step.
* For US/Canadian/E model only

KEY CHECK MODE
* Button check
* Procedure:
While depressing the MD/TAPE and the CD buttons simultaneously, press the power [Power] button to turn on the main power.
“RES 36 KEY” appears.
Every pressing of any button other than [Power] and SPEAKERS counts down the buttons. The buttons which are already counted once are not counted again. When all buttons are pressed “RES 00 KEY” appears.
When MASTER VOLUME is rotated in clockwise direction, “VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appears.

Main board