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MHC-V3/V4D
27
Ver. 1.1
To release from History Mode.
To release from this mode, press [
\/1
] button.
Protect Type Description:
Error Code
Description
PROTECT 1
Defect of power supply circuit to AMP.
There is possibility of unusual power supply of
any of the AMP IC or Pre-ampli
fi
er.
PROTECT 4
DC appears in SP terminal by defect of AMP
IC and MOSFET.
or
Defect if DC FAN and DC FAN driver circuit.
If speaker does not have output even if the set status is not in
PROTECT mode, the following defect might be possible:
Defects
Possible cause
RESET defect
Reset signal status from micom is not ‘H’.
[HISTORY MODE]
This mode is used to check important data stored in the system
when PROTECTOR happen.
Procedure:
1. During demo mode, press [
l m
TUNING
‒
]
*1
/ [
.
TUNING
‒
]
*2
button and [ENTER] button for 5 seconds to
mode into history mode.
2. Press the [
M L
]
*1
/ [
>
]
*2
button
or [
l m
TUNING
‒
]
*1
/ [
.
TUNING
‒
]
*2
button to check
history data stored.
Display on
fl
uorescent indicator tube
Description
H
I
S
T
O
R
Y
History mode display
P
C
O
U
N
T
※
※
Protector count
P
T
※
※
※
※
Protector type
1
H
H
H
H
H
M
M
Single Power On Time until protector happen
2
H
H
H
H
H
M
M
Total Power On Time [no consider protector happen]
F
※
※
※
※
※
※
Input Function during protector on
V
O
L
※
※
※
Volume level during protector on
A
T
T
※
※
※
Actual attenuation
L
O
W
※
※
※
Low EQ level during protector on
M
I
D
※
※
※
Mid EQ level during protector on
H
I
G
H
※
※
※
High EQ level during protector on
S
U
R
R
※
※
※
Surround setting
D
J
※
※
※
※
※
DJ Effect setting
B
A
S
S
※
※
※
Bass Bazuca setting
Note:
*
1
V3 model
*
2
V4D model