I have a TEAC AG-V8525 that has just recently been putting out a lound bang or pop , going off line and displaying a protect messge. On prevous ocassion I could turn power off, restart and unit woul work normally. Now it will not come out of the protect mode. Have disconnected speakers, tried the reset button, still no success

I have a teac amp that had the same problem, found a failed IC in the audio preamp, this is the useual casue of the pop.

Hi and welcome to FixYa,

Initially, the "PROTECT" message/display indicates that:

• the unit has kicked in auto protect mode;
• possibly the speakers need to be checked for continuity;
• the audio amplifier section of the TEAC AG-V8525 has to be checked;
• incidentally, the loud bang and pop could be a capacitor charging/discharging.

Of course you could always try using it in another outlet and making sure no other devices are plugged in to the same outlet. Should this be not corrective, then the unit would require repair. This of course would require opening the unit, perform voltage measurements, determine faulty component and subsequent part(s) replacement. Further, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron would be required. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional. If the cost of repairs and downtime would be factored in, then you may have to re-evaluate your options and consider a replacement.

Pls post back result(s). Good luck and Thank you for using FixYa.

Hi, one or both of your output IC`s are shorted, the unit is telling
you that it is in "protect mode" which means you need a tech,
good luck

Try reinstalling the software in the board. Give it to the service center for this. or you can do it yourself if you have the related cable.

The loud bang was a component that had blown. Sometimes a device may work for a while with a blown capacitor , for example, before going into protection.

The unit must be taken apart and tested to find out the defective component.