You can get the audio IC's at www.mcmelectronics.com .
You can get the audio IC's at www.mcmelectronics.com
Is there any other number No that IC, that don't seem to be a good number, that could be a dateb code.
You can get the audio IC's at www.mcmelectronics.com .
Call MCM and talk to a teach and he will be able to cross it for you.
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Hi Charles,
Protect is an error code for short
and or overload. This will appear once the processor sense a malfunction
either on the power supply or on the load (high chance is the output IC). DIY
steps are as follow to determine where the fault is : 1. Allow the unit to cool
down for an hour. Give proper
ventilation and keep away all
obstruction from the vent to have a sufficient air flow. 2. Disconnect one at a
time the speakers, inputs, from the unit while powering it on.
If the unit back to normal again then you've confirmed that any of
the above caused the error code. If #1 is the caused, you have to check also
the exhaust fan(if installed), clean it
as much as possible, replaced if faulty. If #2 is the caused (speaker) check
the wire and speakers for short,
(input) check the RCA cord for short or replaced if necessary.
If the above simple fix didn't cure the error code, you can try
the next steps if you are an electronicsenthusiast.
Now after removing the cover, you have to concentrate first on the power supply
board. Look for bulged electrolytic capacitor. Leaky
capacitor will affect the regulation
of the supply and will
trigger the error code. Look for dry
joints. Check it also in the pre-amplifier stage, main output board where a
big heat sink is located. Next disable the output amplifier stage by
disconnecting the supply. If the unit come out, make some re-soldering on the
board, spot the cold solder and dry joints and then try to connect
again. If the error code appear again, high chance that your output IC is faulty but still to be confirmed.
Using the disoldering pump and soldering iron pull-out the output IC from the board then try
the unit. If the error code disappear, confirmed that your IC is faulty.After
trying the abovesteps-by-steps guide and
still the symptoms persist this is the time for you to send it to repair shop. Remember that your
unit has a lot of parts and only some basic steps have done, leave the expert to troubleshoot the entire unit.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
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I have searched at MCM and cannot locate STA-512. Do you have a link to them?
STA 512 MYS
DDX 99OMH 832
These are the only things on the IC's. There are 3 of them aprox 32 pins each.
No you cannot get the IC at MCM. I called and they cannot cross either. I repair electronice and use MCM, Newark, Digikey, Mouser etc. No cross anywhere.
I regularly use MCM, Newark, Mouser, and Digikey to cross parts. MCM cannot cross. No offense but if your just guessing and dont have a real answer please dont wast our time by replying.
MCM cannot cross this IC. I regularly use Mouser, MCM, Digikey, and Newark to search for parts. I appreciate your help but just giving me the name of a supplier without being sure they can cross just wastes both of our time. thanks anyway.
Gary
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