Question about Audio Players & Recorders
Posted by Anonymous on
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Posted on Jan 02, 2017
Well whatever is playing up sounds like it might be getting too hot to me. In any case it's something common to both channels. Just have a look on the heatsink to see if it uses a single IC for both channels, they are can cause lots of problems!
The IC might be marked STK with numbers after the letters. That is the part number too for ordering a new one.
Posted on Jan 12, 2010
If you are in the power supply, are you sure that one is used? 4xx series are power supply designations. Maybe numbers got transposed?
2 ways to approach it.
I am looking at an SUZ22 and an SUZ55, the power supplies are roughly the same. The closest component is R416 which is a 39 Ohm resistor. This supplies power to the flourescent display in a current limitng mode.
The alternate approach is where is it in the circuit? what is "downstream of it"?
If it was a larger 1 Watt or 2 Watt Try 1500 Ohms.
If it is the flourescent display, 39 ohms is most probable for manufacturer inventory purposes. If LCD, try 390.
If the preamp is downstream, it is not going to require a great deal of power, and you may be able to trace a parallel trace off the other channel to a corresponding resistor. If that has been tried and it just traces back to the same point, Try 1500 Ohms.
Also, there is symetry in the amplifier because it uses a split supply Vcc- and Vcc+ Not to mentione the symetry between right and left channels.
Posted on Jul 05, 2012
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