Question about Yamaha YST-MS28 Computer Speakers

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YST-MS28 The plug that connects the right-hand control satellite to the subwoofer has a broken pin, so the system will not turn on. Can this be repaired / replaced?

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SOURCE: Yamaha YST-MSW10 subwoofer quits after about 10 minutes

This speaker has a feature that shuts it down automatically when there is no audio signal present for a period of time. Unfortunately, the threshold is set a bit too high so, if you're listening at low volume the speaker will turn off even if there is signal present.

I found this posting because I was looking for a circuit diagram so I could bypass the auto-off feature on my MSW10.

Posted on Nov 03, 2007

  • 190 Answers

SOURCE: SEVICE MANUAL YST MS28 COMECTION

here the link in pdf

need adobe reader to see manual

Posted on Mar 19, 2009

WhiteFox4
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SOURCE: I need the electronic diagram for yamaha yst-ms28

unfortunately there is no such diagram for the speaker. is there a more detailed problem you can bring up and I could try to help you with it?

Posted on Mar 01, 2010

FeaolPlay
  • 71 Answers

SOURCE: Yamaha YST M15 speakers with a Yamaha YST-MSW10

The control panel within the speaker unit may well be dead. Does turning the volume knob produce any static noises or nothing at all? If static is produced, you can clean it with some electrical contact cleaner sprays but if nothing at all, a dead capacitor or capacitors may well be the cause.

Capacitors can be replaced but require the use of a soldering iron and if you are not proficient in using one, the cost of repair may well exceed that of replacing them.

Posted on Dec 03, 2010

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I obtained a pair of Yamaha YST MS50 speakers with no subwoofer. Can they be adapted to use a different sub, such as the inexpensive Yamaha YST MSW5? The clear problem is in different cabling.


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

May 03, 2016 | Yamaha YST-MS50 Computer Speakers

1 Answer

How do i connect a set of Harmon Karden HK695-01 speakers to a Macbook Pro Mid 2010


HI Marc
Follow the steps below
Step 1:
Connect the green connector from the subwoofer into the headphone jack on the laptop, the black connector is not used, leave the rubber cap on the black connector to prevent static from the pin grounding on the system.
Step 2:
Plug the orange connector from the right/control satellite into the orange jack on the subwoofer.
Step 3:
Plug the brown connector from the left satellite into the brown jack on the subwoofer.
Step 4:
Plug the AC plug of the HK 965 into the wall outlet
Step 5:
Turn on the speaker set and adjust the volume accordingly.
PS: Do not Forget to adjust the Laptop volume also to minimize Distortion. Enjoy!

Jun 04, 2015 | Harmon Kardon Hk695 - 01 Audio System...

1 Answer

Someone gave me a YST-MS50. The left speaker (no controls) does not work. It is not the speaker or the cable from the main unit to that speaker. I find that only 7 of the 8 wires in the 8 pin cable going...


If you don't get it to work would you be willing to sell me the right satellite speaker with the controls? email me: red...4..dsc..@....g..mail.com... (just take out all the dots)

Dec 05, 2010 | Yamaha YST-MS50 Computer Speakers

1 Answer

How do i connect the boston BA745 comp. speakers to my gateway desktop?


Assuming you have the BA745 2.1 speaker set up, all of the cables connect to the subwoofer and then to the computer or the satellite speakers (these are built into the speakers IIRC). Take the cable with the black box (2 pins) to red and green. The red and green plugs go into the matching color ports on the computer and the pins on the black end fit into the jacks between the those for the two satellites. Plug the single end speaker cable into the subwoofer port all the way to the right on the back of the subwoofer. Plug the wire with the two plugs into the matching color jacks (blue to the left, red to the right). Then plug in the power adapter cable in the farthest left jack and plug in the other end to a surge protected power strip (that is plugged in and turned on).

Oct 24, 2010 | Boston Acoustics BA745 Computer Speakers

1 Answer

I need the electronic diagram for yamaha yst-ms28 computer speaker


unfortunately there is no such diagram for the speaker. is there a more detailed problem you can bring up and I could try to help you with it?

Mar 01, 2010 | Yamaha YST-MS28 Computer Speakers

2 Answers

How do i connect the speakers to my computer?


68b43be.jpg
Step 1 Connect the green connector
from the subwoofer into the green jack on the computer
(the black connector is not used)

Step 2 Plug the orange connector from the right/control satellite into the orange jack on the subwoofer.
Step 3 Plug the brown connector from the left satellite into the brown jack on the subwoofer.
Step 4 Plug the AC plug into the wall outlet.
Step 5 Turn on the speaker set and adjust the volume accordingly.

Jan 22, 2010 | Harman Kardon HK695 Computer Speakers

1 Answer

Broken orange plug on right speaker going into subwoofer


Other posters to this forum have said this connector is available at Radio Shack.  If you can't find a connector here is a workaround that will do the job:

If there is a broken pin you can bypass it by cutting open the cable jacket and delicately soldering a 6 inch or so jumper onto the affected wire, and then  solder a jumper to the appropriate point inside the subwoofer. Pass the subwoofer jumper out of the case (drill a small hole) and connect it to the jumper you added to the cable.

Dec 02, 2008 | Dell HK395 Computer Speakers

3 Answers

Need wiring and 9pin connector diagram


Dell (Altec Lansing) A425 Subwoofer Pinouts

This is a standard female DB-9 serial port.
Here are the pinouts.

Pin 1 = Left Speaker Out +

Pin 2 = Left Speaker Out - (Common Ground)

Pin 3 = Left Line In +

Pin 4 = Right Line In +

Pin 5 = Left/Right line In - (Common Ground)

Pin 6 = Right Speaker Out +

Pin 7 = Right Speaker Out - (Common Ground)

Pin 8 = Power A

Pin 9 = Power B

Jumper (short) Power A to B to turn on.
If you want a volume control you need to put one on the inputs. You will buy buy a stereo volume control or potentiometer.
Here is some info on how to do this.
http://g4tv.com/screensavers/features/43665/Pump-Up-The-Volume.html

Cheers!

Mar 27, 2008 | Altec Lansing ADA425 3-piece 30-watt...

4 Answers

Yamaha YST-MSW10 subwoofer quits after about 10 minutes


This problem can be solved by either of the following:
1/ Modify the PCBA to prevent the auto shut off feature from working. This is done by adding a 20k ohm resistor across pins 1 & 2 on the timer IC6. This resistor will prevent the timer from turning off the amp. To do this, unplug the amp. Remove the 8 screws on the perimeter of the rear of the amp. Carefully remove the rear plate. Disconnect the speaker wires at the speaker and the front panel connection on the main board. Locate IC6 on the bottom of the main board. Solder a 20k ohm resistor (1/4W) across pins 1 & 2. Pin 1 and Pin 8 are noted on the board. Be sure to insulate the leads of the resistor to prevent contact with the board. See picture. Re-assemble in reverse order.
2/ Some 5.1 channel amps allow independent control of the volume for the subwoofer in their setup. Check your amp to see if you can raise the signal level going to the subwoofer to prevent the amp from shutting off. You can then dial back the volume of the subwoofer using the volume control on the front._436.jpg

Aug 07, 2007 | Yamaha YST-MSW10 Computer Speakers

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