48
VSX-LX52
1
2
3
4
A
B
C
D
E
F
1
2
3
4
FL Displa
y
LED flashes
Status
Timing (sec.)
Descr
iption
Remar
ks
AMP ERR
AD
V
A
N
CED
MCA
CC
LED
W
hen the AMP DC
is detected.
FL flashes 3 times
.
LED flashes after
the po
w
er off
.
N
A
“AMP o
v
er
load”
detection.
PHASE
CO
N
TR
OL
LED flashes after
the po
w
er off
.
Abnor
mality detection
in the po
w
er supply
V
L circuit.
Ov
erheat detection
o
v
er 120
°
C
After a f
ailure in the amplifier b
loc
k or high DC output is detected,
the shutdo
wn process star
ts
, then the po
w
er will be shut off
.
Then the AD
V
A
N
CED MCA
CC LED will flash.
The po
w
er cannot be tur
ned on again.
If y
ou wish to tur
n on the unit after a shutdo
wn activ
ated b
y DC
detection, enter DC detection cancellation mode
,
b
y proceeding with the steps descr
ibed in "Ho
w to enter release
mode" ne
xt page
.
Upon detection of o
v
ercurrent at the amp output stage
,
the unit po
w
er off immediately
,
and the PHASE CO
N
TR
OL LED star
ts flashing.
The pre
vious stage will be restored when the unit
is tur
ned bac
k on.
[3] Error Indications When an Abnormality in The Amplifier System Is Detected
[Purpose]
Errors upon detection of abnormalities in the amp system are indicated.
[Error Indications]
(1)
(2)
(3)
N
A
AD
V
A
N
CED
MCA
CC
LED
CE
N
TER
BLUE
LED
W
hen an abnor
mality is
detected in the output
v
oltage of the po
w
er
supply circuit.
LED flashes after
the po
w
er off
.
(4)
N
A
W
hen an abnor
mality is
detected in the output
v
oltage of the Digital
po
w
er supply circuit.
LED flashes after
the po
w
er off
.
FL flashes 3 seconds
.
LED flashes after
the po
w
er off
.
(5)
AMP O
V
ERHEA
T
ST
A
N
DBY/
O
N
W
hen an abnor
mality of
temper
ature is detected
at the Amp output stage
.
(6)
Ov
er Current
N
A
W
hen the o
v
er
load USB
de
vice (o
v
er 500 mA) is
connected.
If abnor
mality v
oltage is detected in the po
w
er supply
V
L circuit, the unit po
w
er off immediately
, and the
AD
V
A
N
CED MCA
CC LED star
ts flashing.
The po
w
er cannot be tur
ned on again.
If y
ou wish to
tur
n on the unit after the shutdo
wn activ
ated b
y
XPR
O
TECT
, enter DC detection cancellation mode b
y
proceeding with the steps descr
ibed in "Ho
w to enter
release mode" ne
xt page
.
If abnor
mality v
oltage is detected in the Digital po
w
er supply
circuit, the unit po
w
er off immediately
, and the CE
N
TER BLUE
LED star
ts flashing.
T
o restore the pre
vious status
, tur
n the
unit bac
k on.
W
hen the unit reco
v
ers the nor
mal state within 3 seconds
,
FL stops flashing.
W
hen the o
v
erheat state contin
ues f
or more than 3 seconds
,
the po
w
er is shut off and ST
A
N
DBY/O
N
LED star
ts flashing.
T
o restore the pre
vious status 1 min
uite or more after a
shutdo
wn, just tur
n the unit bac
k on.
The connected USB de
vice is o
v
er
load.
