I used to connect } Running the home audio device in a poorly ventilated cabinet … })(); I opened all three ic cxd 9965 yet problem remain ed same push power protection what can I do next step 30 voltage is not present. In fact this kind of problem is very common in home theater system and mini hi-fi. Inspect the speaker cords. Hope it works, Where can I can buy The IC for this. But now I use (function() { if (document.compatMode && document.compatMode == 'BackCompat') { PUSH POWER / PROTECT / PROTECTOR is flashing in the display of the home audio device. The complaint of this Sony HCD-RV6 Mini Hi-Fi was once you turned it On, you can see the message “Push Power Protect”. Recently I bought a second hand HDD/DVD recorder, and a used perfectly working Printer/copier on Marktplaats (Dutch daughter of Ebay?). if (document.getElementById("af-form-413914580")) { document.getElementById('af-form-413914580').parentElement.removeAttribute('target'); Which would be of great help if the same kind of device would pop in for another repair like this one any next time. But I -->, Little Known Way To Solve Sony Mini Hi Fi Push Power Protect Problem. I have a Sony Hometheatre D340 which has same problem I put it on plays for like 20 minutes then goes off and displays push power protect on the LCD screen. Your explaination is quite comprehensive. } Please help me solve this proplem. Can you help me? The next step was to remove all the three sound ICs to isolate the problem. I had to buy a new IC for replacement and for the other parts I had them in my spare parts compartment. Maybe only one of these was bad and that would save a lot of time and soldering work. Good job! We just remove the culprit and let the remaining ones continue their work. You can also forward this website link to your friends and colleagues-thanks! Sony Push Power Protect Problem Solved. But checking the low Ohmic values still is tricky knowing todays Microprocessors only need about 0.9Volts or less at those very Once the cover was removed I could see the power supply board, main board and the main amplifier section-see the photos below: I focused on the sound and pre-amplifier board and resoldered all the ICs but the problem remained the same. if (navigator.userAgent.indexOf('FBIOS') !== -1 || navigator.userAgent.indexOf('Twitter for iPhone') !== -1) { if (navigator.userAgent.indexOf('FBIOS') !== -1 || navigator.userAgent.indexOf('Twitter for iPhone') !== -1) { To reset the internal surge protection circuit unplug the AC power cord from the wall for at least 30 minutes. Thanks for sharing the information Suranga. but it showing protect mode. Go to Solution. I hope you'll be able to recuperate the Another great repair to save unit from adding to the E-Waste stream. From many previous repair case histories, the major cause of the Sony Push Power Protect Problem were due to the bad Class AB 2 Channels AF Power Amplifier IC and the part number was STK442-130-see the photo below: Besides the IC, I also found 2 pieces of 100 Ohm resistors had an opened circuit and two 22uf 100 volt were bulged. I have MHC RV5 MINI HIFI COMPONENT IC STK402 120S HAS BENN CHANGED STILL PROTECT PUSH POWER PROBLEM CHECKED CAPACITORS ALL SEMMS TO BE OK NO BULGED OR LEAKED WHAT COULD BE THE FURTHER PROBLEM, Is there is any solution to fix the ic by reprogramming it by somekind of external kit. } Receive my cordial greetings from algeria. I was measuring with the jig microvolts across a few centimeters of the PCB foil tracks and by amplifying these micro-voltages into the volts range it was possible to use an ordinary (cheap) multimeter in order to locate the shorted component. Thanks in advance, Ruslan.