Question about Audio Players & Recorders
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Posted on Jan 02, 2017
I've just checked mine as it suddenly stopped working - does not even light up the green button.
I'm getting 8 volts Red to Black and 23 volts Red to Yellow so I guess it's fubared?
Posted on Jan 28, 2008
Here are specs and replacement:
230W ATX Power Supply - PS-5201-5D - HP-233SNF ...You can also replace it with a compatible 300 W psu.
Posted on May 27, 2008
SOURCE: power supply
if you are in usa, you need
1-468-809-11 POWER UNIT input ac 110 volt and output 8.5volt dc
and if you are in uk, then
1-468-811-11 POWER UNIT input ac 220 volt and output 8.5 volt dc
Posted on Sep 08, 2008
SOURCE: power supply/ no output voltage
Actually i haven't fixed the problem as yet but i did find some info that would help me to fix problem.
I went to google and entered keyword,,, Electronic parts,,there came up a page,,and i went to several manuf sites till i found a replacement transformer,,then i disassembled the power supply and am now waiting for a replacement transformer.
Posted on Sep 22, 2008
SOURCE: no output from power supply
I am assuming that you are very familiar with electronic circuitry and components, use of a DVM and a soldering iron. In the absence of a schematic diagram, and since you have perform initial voltage checks, perhaps you can wing it. Your "brick" will have to follow the basic design of an SMPS (switch mode power supply). Simply stated,an SMPS is an AC to DC to high freq AC then to lo V DC converter. Per your post, you have checked that there is DC (B+) from the AC mains, then what is needed is to check if there is oscillation to produce the high freq AC. Often design calls for an optical coupler, a small rectangular looking component with four pins, two at each end. This is nothing more than a LED and a Light Dependent transistor. Its function is to switch/trigger on the oscillation (and therefore start the SMPS producing the lo B+s).
Again, since there is no readily available schematic diagram, might I suggest that you post back the part numbers of the ICs and transistors. What we can do is pull out their spec/data sheets and/or application diagrams. Such would give us a general idea of the working voltages at what pins and what each component is supposed to do. Example, let us say your power supply uses a 817A/0635 opti coupler and/or an SG5841DZ controller IC, then we can search for them as initially described.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Posted on Sep 30, 2008
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still there is a drop in voltage then your fly back transformer faulty.
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