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STEREO POWER AMPLIFIER RB-971
Bridged Mono Operation
[See Figure 3 for bridged operation jumper setting and connec- tion illustration.]
The two channels of the
971.Or the
In order to use the
Resetting Jumpers
Before opening the
After the power cord has been unplugged, remove the screws that hold the cabinet cover in place and slide the cover off the amplifier. Locate the three jumper pin blocks labeled S 601, S 602 and S 603. The factory standard (stereo) position of the jumpers is on pins 1 and 2 of each block. There is a * mark on the circuit board next to this position. To convert the
971 power cord back into the wall outlet until the cabinet cover has been replaced.
Troubleshooting
Most difficulties in audio systems are the result of poor or wrong connections, or improper control settings. If you encounter prob- lems, isolate the area of the difficulty, check the control settings, determine the cause of the fault and make the necessary changes. If you are unable to get sound from the
Front Panel Power Indicator Is Not Lit
No main power to the
Fuse Replacement
If everything checks out correctly and you still cannot get the am- plifier to turn on, the internal power fuse may have blown. If you believe this has happened, contact your Rotel dealer for informa- tion on where to take your amplifier to get the fuse replaced.
No Sound
If the amp is getting AC power, but is producing no sound. Typi- cally, this occurs only when the ventilation openings are blocked, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Check all of your connections and control settings on associated components. Pay particular attention to the speaker wire connections. Push the front panel power switch in. If the problem is not corrected or re- occurs, there is a problem with the system or the amplifier itself.
Input Connection
When using the
Bridged Speaker Connection
When using the
4