Troubleshooting - B&K Reference 50 Owner's Manual

PROBLEM POSSIBLE CAUSE
No sound, display 1. Power cord not plugged in.
will not light 2. Power off at AC source.
3. Power switch off.
4. AC power inlet fuse blown or
No sound, display 1. Processor in mute
on. 2. Volume control to minimum.
3. Wrong source selected.
4. Line stage to amp. cables loose or
5. Source to line stage cables loose
Loud hum or buzz 1. Poor ground connection in
on one or more
channels 2. Poor ground in main AC supply.
3. Poor ground on cable box.
4. Cables running across back of TV.
Surround sound 1. Recordings are not Dolby
does not sound
correct. 2. Recordings are not Dolby Digital.
3. Surround processor not in correct
4. Check speaker setup.
5. Speakers phase wrong.
Remote will not 1. Batteries missing.
operate unit. 2. Batteries dead.
3. Batteries inserted wrong.
4. Remote signal blocked.
5. Lens requires cleaning.
6. Wrong programming.
Video is in Black 1. Zone 1 video monitor is selected
and White
One or more 1. Check to see if the external power
channels sound
bad
* Note:
If unit continues to blow power inlet fuses, replace only with fuses of same type and rating.
DO NOT USE A HIGHER RATED FUSE!

TROUBLESHOOTING

faulty. *
faulty.
or faulty.
interconnect cables.
Surround encoded.
mode.
to the wrong signal type.
amplifiers are working correctly.
POSSIBLE SOLUTION
1. Reconnect power cord.
2. Check power at plug.
3. Turn power switch on.
4. Check for shorts or overloading. Replace
fuse.
1. Unmute processor.
2. Increase volume.
3. Select source.
4. Tighten, repair, or replace cable.
5. Tighten, repair, or replace cable.
1. Check all connectors and repair as
necessary.
2. Check ground of outlet. Have it checked by
qualified serviceman.
3. Check ground.
4. Reposition cables.
1. Play a Dolby Surround recording.
2. Play a Dolby Digital recording.
3. Select proper surround mode.
4. Pick correct speaker setup for your system.
5. Check wiring of speakers (+) of speaker to
(+) on amplifier. (-) on speaker to (-) on
amplifier.
1. Check for batteries inside remote.
2. Put in fresh batteries.
3. Follow diagram in battery compartment.
4. Clear path to front panel of unit.
5. Clean lens with a soft cloth.
6. Refer to remote manual.
1. Select the proper video signal type
(composite or S-video).
1. Please contact B&K customer service.
,
contact B&K customer service.
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