Question about Denon PMA-2000R 2-Channel Amplifier
Power On + red LED turns ON but the final relay (click) that starts the amp don't come so he stay's dead! Manual is needed for repair - it's a model from 1996-1998. Please help (GIL658@hotmail.com), thx
Your audio output transistors are shorted and your unit is staying in "protect " mode to protect your speakers from 40 to 60 volts that is being sent at them from the shorted outputs. If you can use a meter you won't need the schematic MOST likely because the outputs are USUALLY the only parts that short out. The output transistors( or chip ) are mounted to the large, finned heatsink. The #'s on the transistors start with "2SA-" and "2SC-" followed by numbers. There are two output transistors per channel. If your unit uses an IC for audio output then the # on the IC will be "STK-" followed by numbers. These parts are available from tritronicsinc.com. Good Luck!
Posted on Oct 17, 2008
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