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  1. #1
    Senior Member
    Join Date
    Aug 2005
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    112

    Inside Squeezebox Radio

    About 3 days ago my Squeezebox Radio stopped working. It's like it's getting no power. I have a red one too I got when they had a good deal just under $100 for it. So I used that power supply but still not good.

    They don't repair them out side 2 years. Said all I can do it buy a new one.

    So I open mine up to see if I can see any thing wrong. I don't see what's wrong with it but I can take photos of it.

    You start but pulling off the speaker screen. It's just pushed on.

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    Any one know how I could fix this. It's like the only thing I can do now it thought it away.

    -Raymond Day

  2. #2
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    Nov 2005
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    Berlin, DE
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    It looks like there's a burned out part in the upper right of the "bottom of board" photo. Possibly a SMT cap?

  3. #3
    Senior Member
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    Aug 2005
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    112
    Quote Originally Posted by SuperQ View Post
    It looks like there's a burned out part in the upper right of the "bottom of board" photo. Possibly a SMT cap?
    Your right. I just looked at that part more and I did not see it before. Now I just need to find out what part that is. I have replace a tinny serfice mount part like that before on a small board were some one plugged the wrong power supply in it.

    I will try and find what part it is and replace it.

    -Raymond Day

  4. #4
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    Dec 2011
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    120
    If I'm right in reading the part as Q3 then this is almost certainly either a transistor or a FET (it looks like it has 3 connections) - you'll probably have to trace part of the circuit to decide which and what polarity (PNP / NPN or N or P FET) - so good luck

  5. #5
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    Aug 2005
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    112

    With the web cam I can get a better photo of it.

    I will upload a photo from my Logitech QuickCam Pro 9000. It can get a closet photo.

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    You can see in this photo that it is Q3 and there is another one right by the bad one. That my be the same the Q5 would that be the same. So the lable on it is "P3A W8" if that is the right replacement part.

    I buy parts at Jameco Electronics. At www.jameco.com

    I looked at there web and looks like it would be one here:

    http://www.jameco.com/webapp/wcs/sto...earch_type=all

    Looks like they are called:

    SOT-23
    Micro-3
    SuperSOT-3

    I guess this part went bad because I think the battery pack when bad in it. One of the traces from this bad part goes right to the plug of the battery.

    over a year ago I got AA rechargeable battery's and with a kit to make it your self. I guess the battery's got too old.

    I just order the $50 battery for this with the remote.

    The battery's only cost me about $2 for 4 of them.

    Here is a photo of it.

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    I did have the temperature thing in the middle of the battery. It's out of it because I was trying to see what's wrong with it. I think the battery's are just to old now.

    -Raymond Day

  6. #6
    Senior Member
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    Aug 2005
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    112

    Open my Rad Radio to see what part it is.

    Can see the numbers on the bad part so I open my red Squeezebox Radio. It's easy remove the speaker screen it just pulls off and there are 2 screws holding the board but you have to take off the rubber part over the Ethernet port in back. It pops off then slide the board over to the speaker side.

    Any way looks like the bad part it labled "22p xo" or that could be a ox. Not sure. Here is the photo I got of it. It's very small.

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    Looking for that number don't come up right away on Google. I guess have to put something else with the lable number.

    -Raymond Day

  7. #7
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    Dec 2009
    Location
    Germany
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    359
    I also habe a fried radio, but that one has never seen a battery.
    sent from a computer using a keyboard

  8. #8
    Junior Member
    Join Date
    Mar 2016
    Posts
    3

    Capacitors with bypass

    Hello,

    Since now I repaired 5 Squeezebox Radios successfully. Two of them had a faulty power amplifier U2 and a blown MosFET Q3. After replacing these parts the radios worked well.

    The other three radios had short circuit over small SMD capacitors. Each radio had the same problem but always with different position of the capacitors. Cause I have no schematic diagram I used a strange method to find the faulty device:
    I use an adjustable laboratory power supply where I can adjust voltage and current separately and adjust 18V @100mA. Cause of the schort circuit somewhere on the PCB, the voltage drops down to a very small voltage like e.g. 2 or 3V @100mA. Now it is time to increase the current carefully with simultaneous check of the temperature of the parts at the front and rear of the PCB (now I know: especially SMD capacitors ). The temperature check can be done with an infrared camera or - if you don't have one - with the back of one finger. Be careful with this method cause part(s) can be getting warm or hot!
    It is important to increase the current slowly and in small steps and always check the temperature of the parts at once. The faulty part become distinctly warm at one moment (in my cases always SMD capacitors at a current between 300 and 500mA).
    After desoldering the located SMD capacitor the radios always worked fine and the short cut was away. In all my cases the capacitors had a very small size so I think also they have a relative small capacity. Mostly I soldered new caps of 6.8 or 10nF.
    In two of the three cases with defect capacitors the MosFET Q3 was blown. Before I replace them and do the "current and temperature" test, I make a short cut between drain and source of the MosFET. After replacing the defect capacitor(s) I solder a new MosFET Q3.
    In one case Q3 wasn't blown up, but has a short circuit over all three pins. It is not possible to switch the radio completely off. The displays shows "good bye" (or "Auf Wiedersehen") and freeze in this state, cause Q3 can't switch the power off. A replacement of Q3 solve also this issue.

    To do all these things you need some knowhow about electronics and you need a good and adjustable laboratory power supply with displays for voltage and current, otherwise it could happen that your Squeezebox Radio will go completely up in smoke...

    At this time I ask once again: Has someone a schematic diagram of the Squeezebox Radio? It would help a lot in locating and analyzing faults!

    euleken
    Last edited by euleken; 2016-09-12 at 13:59.

  9. #9
    Junior Member
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    Jun 2005
    Location
    East Lansing, MI
    Posts
    14

    SBR just died

    Our SBR just went dark. I had a Bose Wave and a Squeezebox v.1 on the shelf, so sound quality has improved and my plan is to recycle the SBR.

    I tore the SBR down to see if Q3 looks smoked, but it looks fine. By "tore it down," I mean I popped off the grill and removed the board. Then I stopped at the little black screws. Wow - that is some serious over-torque.

    The PSU was tested (open and under resistive load) and appears to be fine.

    If anyone wants to take a crack at repairing it or salvaging it for parts, drop me a note.
    SB1 (wired) & SB2 (wired - powerline). LMS 7.7.6 on Synology DS213

  10. #10
    Junior Member
    Join Date
    Nov 2016
    Posts
    1

    Squeezebox Radio stopped working

    Hey Guys,
    I also got the problem, that my Squeezebox doesn't work anymore. It worked fine on external power until the moment I plugged (an original) battery pack which was normally installed into my other Radio. It was turned off, I plugged the battery, then the power, then I wanted to boot it. It started for a few seconds, then turned off again, and that was the last seen action of the radio :-( The battery pack became very hot between the upper two batteries and it melted away a little of the plastic covering, so I quickly unplugged battery again. Now it's dead. By looking inside the radio, there seem no blown up parts inside... Power Supply provides 18V, also tried it with the power supply of the other radio. No reaction.

    Anyone got an idea ? I'm not really familiar with electronics...

    Greetings Thomas

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