Troubleshooting; Care And Cleaning - B&K Phono10 Owner's Manual

PROBLEM POSSIBLE CAUSE
No sound 1. Power cord not plugged in
('On' LED not 2. Power off at AC source
illuminated) 3. AC power inlet fuse blown or faulty
4. Control switch in the wrong position
No sound on 1 or 1. Source to Phono 10 cables loose or
both channels
('On' LED 2. Phono 10 to preamplifier cables loose
illuminated)
3. Input not correctly selected on
Loud hum or buzz 1. Poor ground connections in
on one or more
channels 2. Poor ground in main AC supply
3. Cables running near AC power cords
4. Phono ground not connected
Sound is lower in 1. Gain switch is in the low output level
volume compared setting
to other sources 2. MC / MM switch in wrong position
according to cartridge type
Sound is distorted 1. LOAD capacitors or resistors installed
on 1 or both improperly or missing
channels
* *Note:
If unit continues to blow power inlet fuses,
FUSE,
please contact customer service to have the unit serviced.
Under normal use, the Phono 10 will not require any special care. Clean the exterior of the unit by wiping it with a
damp cloth to remove any dirt or dust that accumulates. Do not let any liquid enter the amplifier through its vents
or top cover. It is recommended that the connectors on the rear panel be cleaned annually using isopropyl
alcohol.

TROUBLESHOOTING

faulty
or faulty
preamplifier / receiver
interconnect cables
between phono player and Phono 10

CARE AND CLEANING

POSSIBLE SOLUTION
1. Reconnect power cord
2. Check AC switch or fuse
3. Check for shorts or overloading
4. Place control switch in proper position
(Page 8)
1. Tighten, repair or replace cable
2. Tighten, repair or replace cable
3. Check source settings on
preamplifier / receiver
1. Check all connectors and repair as
necessary
2. Check ground of outlet. Have it checked
by qualified serviceman
3. Reposition cables
4. Connect phono ground
1. Check setting of the Gain Switch (Page 9)
2. Check setting of MC / MM switch (page 5)
1. Check LOAD capacitors and / or resistors
for proper installation
DO NOT USE A HIGHER RATED
10