Caution – Altec Lansing 4200A User Manual
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3
Operating Manual 6125A and 4200A Multi-Channel Power Amplifier
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning flash with arrowhead symbol,
within an equalateral triangle, is intended to alert
the user to the presence of uninsulated "danger-
ous voltage" within the product's enclosure that
may be of sufficient magnitude to constitute a risk
of electric shock to persons.
The exclamation point within an
equalateral triangle is intended to alert the user
to the presence of important operating and main-
tenance instructions in the literature accompany-
ing the device.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SER-
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SER-
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SER-
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SER-
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SER-
VICEABLE P
VICEABLE P
VICEABLE P
VICEABLE P
VICEABLE PA R
A R
A R
A R
A RTS INSIDE. REFER SER
TS INSIDE. REFER SER
TS INSIDE. REFER SER
TS INSIDE. REFER SER
TS INSIDE. REFER SERVICING TO QUALIFIED SER
VICING TO QUALIFIED SER
VICING TO QUALIFIED SER
VICING TO QUALIFIED SER
VICING TO QUALIFIED SERVICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
APPLIANCE TO RAIN OR MOISTURE.
APPLIANCE TO RAIN OR MOISTURE.
APPLIANCE TO RAIN OR MOISTURE.
APPLIANCE TO RAIN OR MOISTURE.
TO REDUCE THE RISK OF FIRE, REPLACE ONL
TO REDUCE THE RISK OF FIRE, REPLACE ONL
TO REDUCE THE RISK OF FIRE, REPLACE ONL
TO REDUCE THE RISK OF FIRE, REPLACE ONL
TO REDUCE THE RISK OF FIRE, REPLACE ONLY WITH SAME TYPE FUSE.
Y WITH SAME TYPE FUSE.
Y WITH SAME TYPE FUSE.
Y WITH SAME TYPE FUSE.
Y WITH SAME TYPE FUSE.
REFER REPLACEMENT TO QUALIFIED SER
REFER REPLACEMENT TO QUALIFIED SER
REFER REPLACEMENT TO QUALIFIED SER
REFER REPLACEMENT TO QUALIFIED SER
REFER REPLACEMENT TO QUALIFIED SERVICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
VICE PERSONNEL.
W
W
W
W
WARNING: THIS APP
ARNING: THIS APP
ARNING: THIS APP
ARNING: THIS APP
ARNING: THIS APPA R A
A R A
A R A
A R A
A R ATUS MUST BE EAR
TUS MUST BE EAR
TUS MUST BE EAR
TUS MUST BE EAR
TUS MUST BE EARTHED THROUGH THE SUPPLIED
THED THROUGH THE SUPPLIED
THED THROUGH THE SUPPLIED
THED THROUGH THE SUPPLIED
THED THROUGH THE SUPPLIED
POWER LINE CORD
POWER LINE CORD
POWER LINE CORD
POWER LINE CORD
POWER LINE CORD
Caution:
Caution:
Caution:
Caution:
Caution:
This power amplifier can pr
This power amplifier can pr
This power amplifier can pr
This power amplifier can pr
This power amplifier can produce danger
oduce danger
oduce danger
oduce danger
oduce dangerous output voltage levels, high
ous output voltage levels, high
ous output voltage levels, high
ous output voltage levels, high
ous output voltage levels, high
power levels, and high sound pr
power levels, and high sound pr
power levels, and high sound pr
power levels, and high sound pr
power levels, and high sound pre s s u r
e s s u r
e s s u r
e s s u r
e s s u re levels in loudspeakers. In or
e levels in loudspeakers. In or
e levels in loudspeakers. In or
e levels in loudspeakers. In or
e levels in loudspeakers. In order to mini-
der to mini-
der to mini-
der to mini-
der to mini-
mize the risk of injury
mize the risk of injury
mize the risk of injury
mize the risk of injury
mize the risk of injury, damage, or hearing loss, please r
, damage, or hearing loss, please r
, damage, or hearing loss, please r
, damage, or hearing loss, please r
, damage, or hearing loss, please read the entir
ead the entir
ead the entir
ead the entir
ead the entire owner’
e owner’
e owner’
e owner’
e owner’sssss
manual befor
manual befor
manual befor
manual befor
manual before connecting to a sound system.
e connecting to a sound system.
e connecting to a sound system.
e connecting to a sound system.
e connecting to a sound system.
10 DESIGN THEORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11 TROUBLESHOOTING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11.1 No Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11.2 Distorted Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11.3 Hum or Buzz Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
12 DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
14 WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15