QUALIA & Co INDIGO Series User manual

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Assembled in Japan
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Introduction
ank you for purchasing the QUALIA INDIGO Series Preamplier.
Please read this Owner's Manual thoroughly before using the product so
that its high-quality audio can be enjoyed for years to come.
If you have any questions, please contact the dealer where you purchased
the product or QUALIA & Co. directly.
[e-mail]
OWarranty registration card and product warranty
Please ll out the warranty registration card packaged with the product
and send it to QUALIA & Co.
1. If a product failure occurs aer following the instructions in the
Owner's Manual under normal conditions of use within a period of
one (1) year from the date of purchase, QUALIA & Co. will repair
the product free of charge. Users are responsible for the cost of
shipping the product to the dealer or QUALIA & Co. When warranty
requirements are satised, QUALIA & Co. will be responsible for the
cost of sending the repaired product back to the user.
2. Failures caused by the following are excluded from the warranty, even
if they occur during the warranty period:
Failures or damage caused by incorrect use or improper repairs or
modications
Failures or damage caused by transporting, moving, or dropping the
product aer purchase
Failures or damage caused by a natural disaster, such as a re,
earthquake, ood, or lightning strike, pollution, or abnormal voltage
Failures or damage caused by using the product for purposes other
than home use (for example, extended use for business purposes)
Registration for warranty is not led
OProduct carton and packing
Keep the product carton and packing if possible. When transporting
or shipping the product to the dealer or QUALIA & Co. for adjustment
or maintenance, be sure to use the original carton. QUALIA & Co.
will take no responsibility for problems occurring during transport or
shipment of the product if the product is not packed in the original
carton and packing.
OPackaged contents
First of all, please conrm that the items listed below are all present.
INDIGO Preamplier x 1
Power cable x 2
Owner’s Manual x 1
Warranty registration card x 1
1
CONTENTS
1. Introduction . . . . . . . . . . . . . . . . . . . . .
2. Safety Precautions . . . . . . . . . . . . . . .
3. Part Names (Main Unit). . . . . . . . .
4. Part Names (Power Supply). . . . . . .
5. Positioning and Location of the Units . .
5. Connections
*Connection of Power Cable
*Disconnection of Power Cable
*RCA Input Jacks (A, B, C INPUTS)
*Balanced XLR Input Jacks (D,E INPUTS)
*RCA Output Jacks (OUTPUTS 1)
*Balanced XLR Output Jacks (OUTPUTS 2)
*Connection of ACPower Cord
6. Basic Operation
*Turning on the power
*Playback
*Turning othe power
7. How to Replace Fuse
8. Maintenance/Specications
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18

How to Use Audio Equipment Correctly
Before using the product, please read the Safety Precautions and Owner's Manual
thoroughly and use the product correctly.
Keep this Owner's Manual at hand for future reference.
O
Symbols
The Safety Precautions and the product use various symbols to help users use the product safely
and correctly and also prevent any hazard or damage to you, other people, or property.
The symbols and their meanings are found below. Please understand them before reading the
instructions.
Indicates a potentially hazardous situation which, if the product is
mishandled ignoring the indication, could result in serious injury or
possibly death.
Indicates a potentially hazardous situation which, if the product is
mishandled ignoring the indication, could result in injury or property
damage only.
WARNING
CAUTION
Usymbols are used to indicate cautions and warnings.
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the left).
symbols are used to indicate actions that should not be performed. The
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Osymbols are used to indicate mandatory actions and instructions.
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2
Safety Precautions

3
INDIGO LINE Main Unit
Input selector Volume control
INPUT A – C: RCA connectors
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OUTPUT 1 : RCA connectors
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Power Supply.
Lch "A"
Input
Rch "B"
Input
Rch "A"
Input
Rch "RCA"
Output
Lch "B"
Input
Lch "RCA"
Output
Lch "C"
Input
Rch "C"
Input
Lch Power inlet
(Fischer connector)
Rch Power inlet
(Fischer connector)
Lch "E"
Input
Rch "D"
Input
Rch "XLR"
Output
Lch "D"
Input
Rch "E"
Input
Lch "XLR"
Output
3DUW1DPHV0DLQ8QLW
(2) Rear Panel
(1) Front Panel

Power indicator
INDIGO Pre Power Supply
(1) Front Panel
(2) Rear Panel
(3) Power Cables
4
120
5
Power switch
Lch Power outlet
(Fischer connector)
Rch Power outlet
(Fischer connector)
AC power inlet
(15 AMP IEC type)
Fusebox
Voltage indication
(operate the Power Supply
only at the voltage indicated)
Rch Power cable
Rch Fischer connector
(Power outlet)
Lch Power cable
Lch Fischer connector
(Power outlet)
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5
Positioning and location of the units
Install this equipment in a location with adequate space for ventilation and heat release.
If this equipment is installed in a location where it will be exposed to direct sunlight, extremely high
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released smoothly.
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When installed on an unstable surface, this equipment cannot perform its functions adequately.
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causing an injury.
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heat remains trapped inside this equipment, resulting in a failure. In a worst case scenario, it may cause a
¿UH
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Supply.
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contents, or small metallic articles on this device.
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Prevent any foreign matter from entering this equipment.
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Beware of small children. Install this equipment out of the reach of children if possible.
WARNING

6
Main Unit
Power Supply
Main Unit
Power Supply
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Install the Power Supply separately from the Main Unit.
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Install the Power Supply separately from the Main Unit.
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heat release).

7
Connection of Power Cable
Note: Be sure to connect the power cable before connecting the AC power cord.
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Be sure to connect the cables as described below.
WARNING
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does not come off easily. Be sure that cables are connected correctly.
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properly attached.
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pulled out easily.
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sleeve.
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8
/DWFKLQJVOHHYH Cable
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Incorrect ways to disconnect the cable
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itself.

9
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Connecting a cable with the power on may damage the Main Unit and the equipment to be connected,
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O
Before connecting equipment, thoroughly read the instruction manual for each device and turn off the
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O
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Connecting/disconnecting while turning the plug may rotate the terminal on the Main Unit, causing
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Unbalanced RCA connection
Audio equipment can be connected.
Note: Before connecting equipment, clean all terminals and cable plugs.
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Be sure that the terminal arrangement is correct before connecting equipment.
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R L
CD Player Phono equalizer amplifier
R L
Lch "A"
Input
Rch "B"
Input
Rch "A"
Input
Rch "RCA"
Output
Lch "B"
Input
Lch "RCA"
Output
Lch "C"
Input
Rch "C"
Input
120
5
Power switch
OFF

10
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equipment to be connected with this device. If a cable needs to be customized so that it can be connected properly,
please contact the dealer or cable manufacturer.
If the polarity does not match, no sound is generated and the Main Unit and the connected equipment may be
damaged.
Balanced XLR terminal connection
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2=
HOT(＋)
1=GND
2=HOT(＋)
GND=1
2=
HOT(＋)
1 = GND
2 = COLD()
GND=1
CD player
D/A converter
INDIGO LINE
CD player
D/A converter
INDIGO LINE
3= COLD()
3=COLD()3=COLD()
3=HOT(＋)
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EDODQFHG;/5LQSXWWHUPLQDORIWKH,1',*23UHDPSOL¿HU
:KHQWKHSRODULW\RID&'SOD\HURU'$FRQYHUWHULV +27
Commercially available balanced cable can be used as is.
:KHQWKHSRODULW\RID&'SOD\HURU'$FRQYHUWHULV +27
The balanced cable needs to be customized.
CD Player D/A converter
120
5
Power switch
Lch "E"
Input
Rch "D"
Input
Rch "XLR"
Output
Lch "D"
Input
Rch "E"
Input
Lch "XLR"
Output
OFF

11
O
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Connecting a cable with the power on may damage the Main Unit and the equipment to be connected, which may
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O
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HTXLSPHQWIROORZLQJWKHLQVWUXFWLRQV8VHKLJKTXDOLW\FRQQHFWLRQFDEOHV
O
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'2127SODFHDVKRUWLQJSLQRQWKHXQEDODQFHGRXWSXWWHUPLQDO
6KRUWFLUFXLWLQJWKHRXWSXWWHUPLQDOZLOOGDPDJHWKHLQWHUQDOFLUFXLW
O
&RQQHFWGLVFRQQHFWWKH5&$LQWHUFRQQHFWFDEOHZKLOHNHHSLQJLWVWUDLJKWDQGZLWKRXWWXUQLQJWKHSOXJ&RQQHFWLQJ
disconnecting while turning the plug may rotate the terminal on the Main Unit, causing disconnection. Be sure to
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8QEDODQFHGRXWSXWWHUPLQDO287
$VDQXQEDODQFHGRXWSXWWHUPLQDORIWKH5&$MDFNRQHV\VWHP287LVDYDLODEOH
&RQQHFWWKHWHUPLQDOZLWKWKHXQEDODQFHGLQSXWWHUPLQDORIDSRZHUDPSOL¿HUXVLQJDQ5&$LQWHUFRQQHFWFDEOH
&RQQHFWLRQ2XWSXW CAUTION
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-./
0
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"#$
);;

12
O
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Connecting a cable with the power on may damage the Main Unit and the equipment to be connected, which may
UHVXOWLQDQHOHFWULFVKRFN
O
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SRZHU7KHQFRQQHFWWKHHTXLSPHQWIROORZLQJWKHLQVWUXFWLRQV8VHKLJKTXDOLW\FRQQHFWLRQFDEOHV
O
'2127VKRUWFLUFXLWWKHRXWSXWWHUPLQDO
'2127SODFHDVKRUWLQJSLQRQWKHXQEDODQFHGRXWSXWWHUPLQDO
6KRUWFLUFXLWLQJWKHRXWSXWWHUPLQDOZLOOGDPDJHWKHLQWHUQDOFLUFXLW
O
7KLVGHYLFHLVQRWDEDODQFHGDPSOL¿HU:KHQFRQQHFWLQJDEDODQFHGFDEOHEHVXUHWRPDWFKWKHSRODULW\RIWKH
equipment to be connected with this equipment. If a cable needs to be customized so that it can be connected
properly, please contact the dealer or cable manufacturer. If the polarity does not match, no sound is generated
and the Main Unit and the connected equipment may be damaged.
Balanced XLR terminal connection
%DODQFHG;/5LQSXWWHUPLQDO
%DODQFHG;/5LQSXWWHUPLQDOLVXVHGWRFRQQHFWDEDODQFHGFDEOHIURPWKHEDODQFHG;/5RXWSXWWHUPLQDORIDSUHDPSOL¿HU
Note: Polarity of balanced input terminal No. 1=GND, 2=HOT(+), 3=COLD(-)
CAUTION
2=
HOT(＋)
1=GND
2=HOT(＋)
GND=1
2=
HOT(＋)
1 = GND
2 = COLD()
GND=1
INDIGO LINE
Power Amplifier
INDIGO LINE
Power Amplifier
3= COLD()
3=COLD()3=COLD()
3=HOT(＋)
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RIWKHSRZHUDPSOL¿HU
:KHQWKHSRODULW\RIWKHSRZHUDPSOL¿HULV +27
Commercially available balanced cable can be used as is.
:KHQWKHSRODULW\RIWKHSRZHUDPSOL¿HULV +27
The balanced cable needs to be customized.
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WHUPLQDOVDQGWKH3RZHUVZLWFKLVVHWWR2))RQFHDJDLQ
O'RQRWSODFHKHDY\DUWLFOHVRQWKHSRZHUFRUG&RQ¿UPWKDWWKHFRUGLVQRWFUXVKHGXQGHUWKLV
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OConnection of AC Power Cord
AC POWER INLET
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FRQQHFWWKH$&SRZHUFRUGWRWKH$&32:(5,1/(7RQWKH3RZHU6XSSO\
Next, connect the plug of the power cord into the wall outlet.
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13
WARNING
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14
OBasic Operation
O%HIRUHWXUQLQJRQWKHSRZHUFRQ¿UPWKDWFDEOHVDUHSURSHUO\FRQQHFWHGRQFHDJDLQ
O%HIRUHWXUQLQJRQWKHSRZHUEHVXUHWRFRQ¿UPWKDWWKHYROXPHRIWKH,1',*23UHDPSOL¿HU
LVORZHUHGWRWKHPLQLPXP7XUQLQJRQWKHSRZHURIWKLVHTXLSPHQWZLWKDKLJKYROXPHPD\
damage the speakers.
7XUQRQWKHSRZHURIWKH,1',*2/,1(
6HWWKH3RZHUVZLWFKRQWKHUHDUSDQHORIWKH3RZHU6XSSO\WRWKHULJKWVLGHYLHZHGIURPWKHUHDUOHIWVLGHYLHZHG
from the front panel) to turn ON the power.
{When the power is turned on, the indicator on the front panel of the Power Supply illuminates.
CAUTION
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:DLWIRUDSSUR[LPDWHO\¿YHPLQXWHVDQGWKHQWXUQRQWKHSRZHURIWKHVRXUFHHTXLSPHQWDQGWKHQSRZHUDPSOL¿HULQ
WKLVRUGHU7KLVHTXLSPHQWLVQRWHTXLSSHGZLWKDWLPHPXWLQJFLUFXLWGXHWRVRXQGTXDOLW\FRQFHUQV7KHUHIRUHLWWDNHV
DSSUR[LPDWHO\¿YHPLQXWHVIRUHDFKFLUFXLWWRRSHUDWHVWDEO\
Turn on the devices in the following order:
/RZHUWKHYROXPHRIWKH
,1',*23UHDPSOL¿HUDQG
turn on the power.
Turn on the power of
the source equipment
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Turn on the power of
WKHSRZHUDPSOL¿HU

15
6HOHFWDSURJUDPVRXUFH
Select a program source to be used using the input selector equipped on the front panel of the Main Unit.
Input selector Volume control
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6HWWKHYROXPHWRDGHVLUHGOHYHO
3OD\DUHFRUGRU&'RQWKHSOD\HUDQGVHWWKHYROXPHWRDGHVLUHGOHYHOE\WXUQLQJWKHYROXPHFRQWURONQRERQWKH
IURQWSDQHORIWKH0DLQ8QLWFORFNZLVHWRWKHULJKWJUDGXDOO\
7KHYROXPHFRQWURONQRELVIRXQGRQWKHULJKWVLGHRIWKHIURQWSDQHO
Input selector Volume control
9ROXPHFRQWURORIWKLVGHYLFHLVGHVLJQHGWRJUDGXDOO\LQFUHDVHWKHYROXPHIURPWKHPLQLPXPOHYHO
+RZHYHUWXUQLQJWKHYROXPHFRQWURONQRESDVWWKHRQHR¶FORFNSRVLWLRQVLJQLILFDQWO\LQFUHDVHVWKH
YROXPH%HDZDUHWKDWWXUQLQJWKHYROXPHFRQWURONQREUDSLGO\PD\GDPDJHWKHVSHDNHUV
6HOHFWDQRWKHUSURJUDPVRXUFH
Before selecting another program source, be sure to lower the volume.
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/RZHUWKHYROXPH
RIWKH,1',*2
3UHDPSOL¿HU
&RQ¿UPWKDWWKH
power of the source
equipment is on.
Select an input to be
used using the input
selector.
Set the source equipment to
play and then gradually increase
the volume of this equipment to
achieve the desired volume level.

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)ROORZWKHVWHSVEHORZWRWXUQRIIWKHSRZHU
/RZHUWKHYROXPHRIWKHSUHDPSOL¿HUWRWKHPLQLPXPWXUQRIIWKHSRZHURIWKHSRZHUDPSOL¿HUDQGWKHQWXUQRIIWKH
power of this equipment.
{)ROORZWKHVWHSVEHORZWRWXUQRIIWKHSRZHU
Tips for enjoying higher quality sound
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HTXLSPHQWKDQGOHVZHDNVLJQDOVLWWDNHVVRPHWLPHIRUWKHFLUFXLWVWRUHDFKRSWLPDORSHUDWLQJFRQGLWLRQV7KHEHVW
VRXQGSHUIRUPDQFHFDQEHREWDLQHGE\NHHSLQJWKHHTXLSPHQWDOZD\VSRZHUHGXS
When the equipment is not going to be used for a long period of time due to travel or other similar reason, remove the power
SOXJIURPWKHZDOORXWOHWIRUVDIHW\.HHSLQJWKHSRZHUSOXJLQWKHZDOORXWOHWPD\UHVXOWLQD¿UH:KHQSXOOLQJRXWWKHSRZHU
SOXJGRQRWSXOOWKHSRZHUFRUG,WPD\GDPDJHWKHFRUGUHVXOWLQJLQD¿UHRUHOHFWULFVKRFN%HVXUHWRSXOOLWRXWE\KROGLQJ
the plug.
:KHQWKHUHLVDULVNRISRZHURXWDJHRUOLJKWQLQJVWULNHGXHWRDW\SKRRQKHDY\UDLQRUWKXQGHUEHVXUHWRSXOO
RXWWKHSRZHUSOXJRIWKLVHTXLSPHQWIURPWKHZDOORXWOHW$VXGGHQSRZHURXWDJHRUOLJKWQLQJVWULNHFDQGDPDJH
WKH0DLQ8QLWDQGFRQQHFWHGHTXLSPHQWZKLFKPD\UHVXOWLQD¿UHRUHOHFWULFVKRFN
16
/RZHUWKHYROXPH
RIWKH,1',*2
3UHDPSOL¿HU
Turn off the
power of the
SRZHUDPSOL¿HU
Turn off the power
of the source
equipment.
Turn off the power
RIWKH,1',*2
3UHDPSOL¿HU
CAUTION
WARNING
O
When humming noise or other noise is generated
7KH,1',*2/LQH$PSOL¿HULVDZLGHEDQGDPSOL¿HU,WLVVHQVLWLYHWRKLJKIUHTXHQF\QRLVHJHQHUDWHGRQWKHSRZHU
supply and digital noise generated on line cables. These noises are generated by various factors.
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Noise may come from a line cable.
Extra attention to noise is necessary when an unbalanced cable is used. Some cables are not very resistant to noise
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Recently, power cords with grounding are often used. When many such cords are used, a common ground is used for
equipment connected to a power outlet and a complicated ground loop is generated due to relationships with signal
cables. As a result, a humming noise is sometimes generated of which the cause is hard to identify. In this case, attach
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If water or foreign matter enters this equipment, the equipment is dropped, or the cabinet is damaged,
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Power switch of this device, and pull out the power plug from the wall outlet. Then, contact the dealer or
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If the indicator goes off and operation stops, the fuse may have blown out due to some type of a problem
that occurred inside the device. In this case, immediately stop using the device. Turn off the power of all
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OWhen abnormal conditions occur
WARNING
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Co. is not responsible for any failure of the Main Unit or bodily harm caused by replacement of the fuse
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replace the fuse with the power cord connected to the Main Unit or wall outlet because it will result in
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fuse.
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When the fuse in the fuse holder blows out
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the front panel, and pull out the power cord from the Main
Unit or wall outlet.
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Explain to the person in charge that the fuse blew out.
Power supply variations are usually not considered to
blow out a fuse. However, the fuse may blow out due to
a variation a lot greater than expected, noise mixed in, or
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along a road even when the Main Unit does not experience
any problems.
When instructed to change the fuse by the Service
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cables and perform the procedure described on the right.
After replacing the fuse, connect the power cord.
Turn on the Power switch.
If the newly replaced fuse blows out, the Main Unit may have
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type
Press the cover of the fuse holder using a
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Replace the blown fuse.
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time lag type
After replacing the fuse, press the top
cover using a slotted screwdriver and turn it
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Turn the cover
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