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 !

Saturday, 13 June 2020

SAMSUNG DVD-VR335 - XAA, XAC , DVD-VR345 -XAA, XAC COMBO DVD-VCR RECORDER SMPS SCHEMATIC, HOW TO UPDATE THE SOFTWARE, HOW TO TAKE OUT THE CASETTE TAPE AT EMERGENCY

HOW TO EJECT THE CASSETTE TAPE (If the tape is stuck in the unit)

1.) Turn the Gear Worm [1] clockwise in the direction of arrow with a screwdriver.
(Other method ; Remove the screw of Motor Load Ass’y, Separate the Motor Load Ass’y)
2) When Slider S, T approaches the unloading position, rotate holder Clutch counterclockwise after inserting screwdriver in the frame’s bottom hole in order to wind the unwound tape.
(If you rotate Gear Worm [1] continuously when tape is unwinding, you may cause tape contamination by grease and tape damage. Be sure to wind the unwound tape with the unit in the horizontal position.)
3) Rotate Gear Worm [1] clockwise using a screwdriver until the mechanism is in the eject state. R
Mode switch (program switch) assembly point



Mode switch (program switch) assembly point

When installing the ass’y deck on the Main PCB, be sure to align the assembly point of mode switch.

Remote Control:  Part number - AC59-00053A

Software Update

Drive Firmware Update

Samsung will often support software update to improve the performance of DVD Recorder & VCR to the latest status, through Samsung Internet Site. (www. samsung.com)

How to make an update disc

Write the downloaded file onto a blank CD-R or CD-RW disc, using the following settings :
1) You have to download a new file through Samsung internet site. (www.samsung.com)
2) Write the file to disc using the CD-RW of your computer.

• Recommended Application Program - Nero Burning / Easy CD Creator ..etc
• Option
- Name : SDM2224
- Extension name : “*.REC”
- Multisession : No Multisession
- File name length : Max. of 11 = 8 + 3
- Format : Mode 1
- Character set : ISO 9660 or Joliet Format
- CD Close & Disc at once
- Label : RAMBO

It is very important : please read the below notice below before updating your unit.
The following events may interrupt the update process and MAY RESULT IN PERMANENT DAMAGE TO THE UNIT WHILE UPDATING

Unplugging the power cord.
Power Outage.
Dirt or Scratches on the disc.
Opening a disc tray during processing.

Press OPEN/CLOSE to open the disc tray.
2) Insert the update CD-R disc with the software update, label facing up.
3) Press OPEN/CLOSE to close the disc tray.
* It takes about 1~2 minutes before the message below appears.

If you don’t see the message above, try another disc. Generally, this is caused by disc quality and by disc creating problem.

4) Press the ENTER button on the remote control.

You will see “LOAD” on FLT Display.

5) It takes about 1~2 minutes to complete the update.
The message below will be displayed in the screen after update is completed and the tray will open automatically

6) After removing the update disc, turn off the unit with power button.
And there after turn on the unit with power button and then the will be closed.
The drive firmware is now completed.

Flash Update

How to make an update disc

Write the downloaded file onto a blank CD-R or CD-RW disc, using the following settings :
1) You have to download a new file through Samsung internet site. (www.samsung.com)
2) Write the file to disc using the CD-RW of your computer.

• Recommended Application Program
- Nero Burning / Easy CD Creator ..etc.
• Option
- Only single session
- CD close & disc at once
- ISO 9660 or Joliet format
- Extension name : “*.RUF”
• In order to increase disc playability, add a dummy file (over 100MB) together with the latest program.
(The dummy file can be used any kind of file except MP3 file etc. which can be played in the unit and we recommend to use a file within extension name as “*.dmy”, which can be changed from original one.)

It is very important : please read the below notice below before updating your unit.
The following events may interrupt the update process and MAY RESULT IN PERMANENT DAMAGE TO THE UNIT WHILE UPDATING

Unplugging the power cord.
Power Outage.
Dirt or Scratches on the disc.
Opening a disc tray during processing.

Press OPEN/CLOSE to open the disc tray.
2) Insert the update CD-R disc with the software update, label facing up.
3) Press OPEN/CLOSE to close the disc tray.

* If you don’t see the message below, try another disc.
Generally, this is caused by disc quality and by disc creating problem.

4) Press the ENTER button on the remote control

5) It takes about 5 minutes to complete the update.
The message below will be displayed in the screen after update is completed and the tray will open automatically

* If the message to the left isn’t displayed after 10minutes and the unit is no longer functioning properly, contact a Samsung authorized service center.

6) After removing the update disc, turn off the unit with power button.
And there after turn on the unit with power button and then the will be closed.
The Flash update is now completed.

SMPS schematic