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 !

Thursday, 16 July 2020

YAMAHA NS-WSW42 WIRELESS SUBWOOFER HOW TO UPDATE THE SOFTWARE, PROTECTION DETAILS, ERROR CODES, SCHEMATIC (CIRCUIT DIAGRAMS)

 

FRONT SURROUND SYSTEM YAS-207 or ATS-2070

CENTER UNIT YAS-CU207orATS-CU2070

When accepting a repair order from the user, it is recommended to receive the YAS-CU207/ATS-CU2070 and NS-WSW42 as a set for the repair work.

Turning on the power to YAS-CU207- ATS-CU2070 makes wireless connection of YAS-CU207- ATS-CU2070 and NS-WSW42 possible. After the repair work, if their wireless connection is not made automatically, makes
it possible manually. (For details, refer to “PAIRING THE CENTER UNIT AND SUBWOOFER MANUALLY”.)

Lithium batteries: CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

YAS-CU207 - ATS-CU2070 - NS-WSW42 updating firmware

When the following part is replaced, the firmware must be updated to the latest version.
MAIN P.C.B.

Confirmation of firmware version
* It is not possible to check the firmware version before and after updating the firmware.

Initializing the back-up IC

After updating the firmware, the back-up IC MUST be initialized by the following procedure store the setting information properly.

Connect the power cable of this unit to the AC outlet and turn off the power.
Then, while touching the  (volume –) key, touch the  (power) key, and all indicators will flash and initialization will be completed.

Required Tools
• USB storage device
(For USB2.0 High speed)
• Latest firmware

Preparation
1. Download the latest firmware from the specified
download source to the folder of the PC.
2. Copy the latest firmware from the PC to the root
folder of the USB storage device.
Note: When the latest firmware is copied to a subfolder of the USB storage device, the update will not proceed.

Operation Procedures
* Disconnect the power cable of this unit from the AC outlet.
1. Insert the USB storage device to the UPDATE ONLY jack.
2. Connect the power cable of this unit to the AC outlet.
3. Turn off the power of this unit. (Fig. 1)
4. Keep touching the  (volume –) and  (power) keys until the CLEAR VOICE indicator flashes.
Update of the firmware starts automatically.

(If writing of the firmware has failed, disconnect the power cord from the AC outlet and perform the firmware updating procedure again from the beginning.)

5. When writing of the firmware is completed, all indicators flash.
6. Touch the  (power) key to turn off the power.
7. Remove the USB storage device from the UPDATE ONLY jack.

List of error display

Protection display

If there is anything abnormal with this unit, its protection function works to turn off the power even if it is turned on.
Touch the (power) key again to turn on the power, and the DD / DTS indicator indicates the causal factor of the protection function.

Flashing pattern
For the protection function display, the same flashing pattern is repeated 5 times.

Schematic diagram






Posted By: FRANK at 08:32