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I have a AIWA XR-MDS7 EZ sup mini stero unit, the lcd display is dead although the unit works I cannot tell what disc is playing or track number. Also I cant tell what radio station is playing. Everything works perfectly apart from no display. I had a friend look at it and he recons the display is getting a signal.

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  • mojo35 Apr 18, 2008

    Thanks A mill !! i will get cracking on it & and keep you posted.

  • mojo35 Apr 18, 2008

    Hiya .. I checked all the pins - they are all fine, the guy that had a look at it first used an oscilloscope to check the signal to the display and all was ok. LED I assume has lots of little lights where as LCD does not - based on this assumption mine has a LCD display. The only lights working on the unit are the power on and the changing colours around the volume button and the cd tray when you power it up.

  • mojo35 Apr 18, 2008

    Here is a pic of the unit - if it helps .

  • mojo35 Apr 21, 2008

    Will get those readings posted asap.


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a fuse is dead , change with a new one, things will be fine!!

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The first thing to check is the solder connections on the display itself. Look specifically at the connections on either end of the display. These are the supply pins. Also, I don't know if this model has an LCD display or LED. If LCD, then make sure that the back light is funtioning.
Keep us posted on what you find.

Posted on Apr 11, 2008

  • ABRsvcs Apr 18, 2008

    First, from looking at the display, you won't se the individual lights. Was the display red or a gray color? Also, the signal lines are not the issue here. The pins at either end should have DC voltage on them. If they do not, the display won't work. Post the voltage readings here if you can.




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Aiwa XR-EM50

This was easy.. download the manual here:
From the manual:

Clock Adjustment: (Page 7)

Setting the clock
1 Hold down SHIFT and press CLOCK on the remote
When the unit is turned off, you can also press SET.
2 Within 6 seconds, press "< <" (rewind icon) or > > (fast forward icon) to set thetime.
Each press changes the time in 1-minute steps.
Holding these buttons down will vary the time in 10-minute
3 Press SET.
The time display stops flashing and the clock starts from
00 seconds.

When setting the clock on the unit in stop mode, hold down
"square" (stop icon) and press "> >" in step 1. After setting the time in step 2,
press TONE in step 3.

To display the time while the power is on
Hold down SHIFT and press CLOCK on the remote control.
The time will be displayed for 6 seconds.

To switch to the 24-hour standard
Display the time and press s within 6 seconds.
With each press, the clock alternates between 12- and 24-
hour standard time.

In the 12-hour standard, "AM12:00" indicates midnight and
"PM12:00" noon.
If the clock display flashes when the unit is turned
There has been a power interruption. Reset the clock.

Bass / Treb Adjustment: (Page 11)

1) Press BAS or TRE
2) Within 6 seconds, turn VOLUME (press VOLUME +,- on the remote control).
Each level can be adjusted from "-2" to "+5".

Good Luck!

Apr 07, 2014 | Audio & Video Receivers

1 Answer

I just bougth a marantz cdr 300 cd recorder,everything seems to be working fine, but I'm not able to listen what I just recordered on any other cd player.Marantz cd 72 mr 2020.Thanks

It sounds like you haven't followed the last step to the burning procedure. All you need to do once you've completed burning your disc is to Finalize the disc. Read below why you need to finalize as well as the steps to follow in order to finalize the disc.
Hope this helps ;)
How to Finalize Finalizing is writing the TOC (table of contents) on a disc so a CD player can recognize the number of tracks, the total time for each track, and their location on the disc. A recorded disc must be finalized to playback on a standard CD player. Once finalized a CD-R disc can be played on CD players that support CD-R playback. CD-RW discs can only be played on CD players that support CD-RW playback. Consult your CD player owner's manual to confirm supported formats. Finalizing is necessary to: • be able to play a recorded CD-R or CD-RW disc on a CD player • prevent further recording on a disc • avoid erasing tracks on a CD-RW disc • record text information onto a disc you record Notes: • A finalized CD-R disc can never be recorded onto again. • A finalized CD-RW disc can be unfinalized for more recording. • The CDR300 can play back unfinalized CD-R or CD-RW discs. • SYNC REC+FINAL mode automatically finalizes.
Here are the steps in order to Finalize your disk
1 Push Stop. The display shows the number of tracks and their total playing time. 2 Push FINALIZE. FINALIZE is displayed for about 3 seconds.

Jul 27, 2011 | Audio & Video Receivers

1 Answer

Hellow Sir: I bought Aiwa XR-MS3, now the piece has a problem. It can recognisze some CDs, and some CD it can't recognize. thank you very much Yong

First you need to clean the disc's that it will not play. If a disc has a fingerprint or scratch on it in the area of the disc that is at the inner-most part of the disc where data is at, most CD players will not play the disc at all. Some will, but most will not. That area is the part of the disc that is called the TOC, it stands for "table of contents" and if that part can not be read, the disc can not be played. It has all the information there about everything that is on the disc. If the player can't read it, then the player has no way to find anything on the disc.

Try using windex and a soft cloth, like a bath towel or something soft that won't scratch the disc. This method works better than anything else you can buy for cleaning disc's and it is much cheaper.

If cleaning the disc's doesn't help you should try cleaning the laser pick-up lens. many retail outlets like Best Buy sell a disc that you can put in the unit and run it for about 20 to 30 seconds and it will clean the lens. It doesn't work great, but it will clean it a little. If you are able to see the laser pick-up and get to it with a Q-tip, you could try cleaning it with the Q-tip. Put a very small amount of windex or even isoprophl alcohol on the Q-tip and then very lightly rub it on the laser lens. Don't use a lot, just enough to get the Q-tip moist, and that will clean the lens better than anything else. It is the way professional technicians clean them. I have been repairing audio equipment for over 18 years and have lots of experience with these type of units.

If cleaning the lens doesn't help, you have a weak laser pick-up that would need to be replaced. If it is under warranty, take it in to an authorized Aiwa service center along with your receipt and they will fix it for free. This unit should have a 1 year warranty and as long as you have a proof of purchase they will fix it. You do not need to have registered your purchase when you bought it, many people think that it is required, but it is not. All you need is the receipt, which if you no longer have can sometimes be given to you by the retail outlet you bought it from. Many retail outlets have that information stored in the computer systems. Or you could check your credit card statements, if you used a credit card, and that is often accepted as proof of purchase. I have even seen some people who have contacted the manufacturer thru the customer service number and get a letter from them authorizing a one-time repair under warranty. You know that old saying, "The squeeky wheel get the grease". Sometimes it helps to call and complain, or just explain that you lost your receipt. If the unit is one that has been in stores being sold within the last year, many times they will allow for a free repair.

I hope this helps you with your problem, and if so a rating of "FixYa!" would be appropiate and very much appreciated, after all, it is the only reward we get for offering people like yourself free support for your problems.

Thanks, and let me know if I can be of any further help.


Sep 07, 2008 | Aiwa Audio & Video Receivers

1 Answer

I have Model No. XR-M200U AIWA Compact Disc Stereo System. How do I disconnect the antenna wires from back of the unit. I hesitate to pull the connectors as they seem to be very fragile.

Hi - You can download the manual from the link underlined in blue below:


Take a look at page 4:


You need to press on the tab to the right hand side (looking at the back) this will release the wire which should easily pull out.
To replace just push the tab again & insert the wire.

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!


Aug 26, 2008 | Aiwa Audio & Video Receivers

1 Answer

Kenwood RXD25 CD player intermitent??

Hi jenoss

Sounds like the unit has either a failing load belt to the cd drawer mechanism,not allowing the transport to fully load the cd. Give the unit a gentle tap just after the drawer closes and see if it resolves the problem.

OR a faulty spindle motor, you will have to take the lid off and after pressing play, give the disc a gentle "kickstart". If it then begins to run, then the motor is the problem.

If you find it is neither of these, get back to me here and I we shall go further


Mar 16, 2008 | Audio & Video Receivers

1 Answer

Pioneer PD-206 wont power up

Hi tfulton

Try disconnecting from the power and powering it up again to reset the unit.

If it still wont cooperate, the unit will have popped a IC protector in the power supply. Not an uncommon fault. The burnt disc you used may have pushed the tracking servos a little hard and a circuit protector has kicked it. Pop the lid off and look for a black 2 wire device about 4mm across that viewed from above has a D shape. Measure it with an ohm meter....It should read low ohms, if it does not... it has failed. It may be marked as ICPxx(from memory)

A fast fix we used for this is to grab the device and give it a 200 deg twist to short the legs together. Soemtimes(often) the body of the device will break off, just solder the legs left behind.

They have a habit of failingl with no reason, and shorting across them will not affect the operation of the unit, nor put it anything in jeopardy.

OR pull the board out... and replace the device, although I can tell you through experience, they may fail again.

Good luck, if you have any questions, just get back to
me here. :)


Mar 08, 2008 | Audio & Video Receivers

1 Answer

I connected an external MD to Aiwa XR-EM220 but it doesnt work...

If I remember correctly its the button on the front that says AUX, if not then check with the website and find out for sure

Feb 29, 2008 | Audio & Video Receivers

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