25
4.4.4. Protection History Display Mode
To enter the Product Mode, to display the Protection History Display Mode.
(1) If no protections have occurred.
FLD
N
O
P
R
O
T
E
C
T
(2) For THERMAL (when the last protection incident was THERMAL(A) or THERMAL(B) protection)
FLD
P
R
T
:
T
H
E
R
M
A
L
A
FLD
P
R
T
:
T
H
E
R
M
A
L
B
Cause: The temperature of the heat sink is excessive.
If the power is turned on without correcting the abnormality, the protection function will work about 4 minutes
later and the power supply will be shut off.
(3) For ASO (when the last protection incident was ASO protection)
FLD
P
R
T
:
A
S
O
Cause: The line between speaker terminals is shorted, or speakers with impedance of less than the rated value.
Supplementary information: As the excess current is detected after operation of the speaker relay, a short on the
speaker terminal and the connected speaker can be identified.
(4) For DC (when the last protection incident was DC protection)
FLD
P
R
T
:
D
C
Cause: DC output of the power amplifier is abnormal.
If the power is turned on without correcting the abnormality, the protection function will work about 6 seconds
later and the power supply will be shut off.
(5) For Power (when the last protection incident was Power protection)
FLD
P
R
T
:
P
o
w
e
r
Cause: The Power Supply(
±
12V) is abnormal.
b
Additional causes of protection can be due to loose connections, associated components, Microprocessor, etc.
Press the button below to set On/Off. The display then return to the normal mode.
"PRESET -"
(AVR-S510BT)
"TUNE -"
(AVR-X520BT / X518CI)
f
Clearing the protection history
There are two ways to clear the protection history, as described below.
(1) Start up the set in error (protection display) mode and display the error, then press and hold down the below button
for 3 seconds.
"PRESET -"
(AVR-S510BT)
"TUNE -"
(AVR-X520BT / X518CI)
f
FLD
P
R
T
:
D
C
Press the button for 3 seconds.
FLD
P
R
T
:
C
L
E
A
R
The above is displayed and the protection history is cleared.
FLD
N
O
P
R
O
T
E
C
T
(2) Initialize this unit. (See page
.)
Summary of Contents for AVR-S510BT
Page 8: ...Personal notes 8 ...
Page 49: ...49 LEVEL DIAGRAM AVR S518BT X520BT X518CI LEVEL1 DIAGRAM ...
Page 50: ...50 AVR S518BT X520BT X518CI LEVEL2 DIAGRAM ...
Page 51: ...51 AVR S518BT X520BT X518CI LEVEL3 DIAGRAM ...
Page 52: ...52 AVR S518BT X520BT X518CI LEVEL4 DIAGRAM ...
Page 53: ...53 AUDIO BLOCK DIAGRAM AVR S518BT X520BT X518CI ANALOG AUDIO DIAGRAM ...
Page 55: ...55 VIDEO BLOCK DIAGRAM AVR S518BT X520BT X518CI VIDEO BLOCK ...
Page 56: ...56 POWER BLOCK DIAGRAM AVR S518BT X520BT X518CI VCC DIAGRAM ...
Page 89: ...89 CS497024CVZ DIGITAL IC741 ...
Page 92: ...92 CS42528 CQ DIGITAL IC744 CS42528 Block diagram ...
Page 93: ...93 CS42528 Terminal Functions ...
Page 95: ...95 NJU72340A DIGITAL IC761 NJU72340A Terminal Functions ...
Page 102: ...102 MX25L1606EM2I 12G USB IC904 MX25L1606EM2I 12G Terminal Functions BD82065FVJ USB IC905 ...
Page 104: ...104 2 FL DISPLAY FLD 018BT021GINK FRONT FL101 PIN CONNECTION GRID ASSIGNMENT ...
Page 105: ...105 ANODE CONNECTION ...
