VINCENT SP-997 Manuel D'utilisation page 33

Symptom
Poor sound quality
Humming low fre-
quency noise is audi-
ble, even as no audio
source is playing
back
SEARCH FOR ERRORS
Possible Cause
The cable connections are not tight, the con-
nectors are dirty or a cable is defective.
A record player has been connected to a line
level input of the preamplifier without using a
phono preamplifier.
An audio source with standard line level out-
put (example: CD player) is connected to the
power amplifier direct input "LINE IN" (3).
See section "Net frequency noise" in the
chapter "Tips".
Countermeasure
Check the cables and cable connections.
Interconnect a phono preamplifier.
Do not connect line level audio sources to the
input "LINE IN" (3).
See section "Net frequency noise" in the
chapter "Tips".
Vincent
33