![Harman JBL MA704 Скачать руководство пользователя страница 12](http://html1.mh-extra.com/html/harman/jbl-ma704/jbl-ma704_manual_3989627012.webp)
UПL
b
y
HARMAN
Selecting the subwoofer phase
You сап choose а subwoofer phase output of 0
°
or 180
°
. То check your sub's phase, play music with lots of bass and listen as another person
slowly flips the 0/180 degree phase switch back and forth. The correct setting is the one that gives you more bass. lf you don't detect any real
difference, leave the switch in the О setting.
PHASE
l
111111111 11
_J
L_
0
°
180
°
Boosting the bass
Turn the dial clockwise to increase the bass output from О dB to +9 dB.
BASS BOOST
OdB +9dB
СНАРТЕR 4:TROUBLESHOOТING
PROBLEM: No audio and P0WER INDICAT0R is off.
CAUSE and S0LUTION: No voltage at ВАТТ+ and/or REM terminals, or bad or по ground connection. Check voltages at amplifier terminals
with V0M.
PROBLEM: No audio and РRОПСТ INDICAT0R flashes every 4 seconds.
CAUSE and S0LUTION: DC voltage оп amplifier output. Amplifier may need service; see enclosed warranty card for service information.
PROBLEM: No audio and РRОПСТ INDICAT0R is оп.
CAUSE and S0LUTION: Amplifier is overheated. Make sure amplifier cooling is not Ыocked at mounting location. Verify that speaker-system
impedance is within specified limits. 0r, there may Ье voltage greater than 16V (or less than 8.5V) оп ВАТТ+ connection. Check vehicle
charging system.
PROBLEM: No audio and РRОПСТ and P0WER INDICAT0RS flash.
CAUSE and S0LUTION: Voltage less than 9V оп ВАТТ+ connection. Check vehicle charging system.
PROBLEM: Distorted audio.
CAUSE and S0LUTION: Gain is not set properly. Check INPUT LEVEL setting. Check speaker wires for shorts or grounds. Amplifier or source
unit may Ье defective.