A&R Power Amplifier SA150 Kullanıcı El Kitabı Kılavuzu - Sayfa 10

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Ayrıca A&R Power Amplifier SA150 için: Kullanıcı El Kitabı Kılavuzu (14 sayfalar)

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Mains Fuses

All models are fitted with an anti surge (slow blow} 20mm x 5mm diameter fuse, designed to

protect against faults in the amplifier, transformer and mains switch. The values are shown below:

SA200 (all voltages)

SA150 (220/240V)

1.6A

SA150 (120V)

3.15A

THESE FUSES ARE NOT USER REPLACEABLE

Should the SA150 or SA200 fail to function at switch-on the fault is probably external to the

amplifier. In particular, check the fuse in the mains plug (and distribution board, if used) before

suspecting the power amplifier. The switch-on surge currents of the SA150 and SA200 are very

great which is why a 10 or 13 Amp fuse is recommended for the mains plug. You should also

ensure that the IEC mains socket is pushed seucrely home into the IEC plug on the back panel of

the amplifier.

Inspecting and Changing Fuses

In order to inspect or change the fuses you will need to remove the top cover (see Figures 6

and 7).

BEFORE REMOVING THE COVER ALWAYS SWITCH OFF THE AMPLIFIER AND

DISCONNECT THE MAINS SUPPLY. NOTE THAT THE MAINS FUSE REMAINS LIVE

WHENEVER THE AMPLIFIER IS PLUGGED INTO THE MAINS, EVEN WHEN THE

AMPLIFIER SWITCH IS IN THE OFF POSITION.

To remove the top cover use a No 1 'Posidriv' screwdriver to take out the three black screws

located along the top rear edge of the amplifier, above the heat-sinks. The cover may then be

lifted gently upwards and backwards in order to free it from its locating slot in the front panel. The

positions of the fuses are shown in Figure 4. Replacement of the cover is a straight reversal of the

above procedure.

left hand

output fuse

max 2.5 Amp

quick blow

(SA150)

max. 3.15 Amp

quick blow

(SA200)

DO,

1CXV

)( )

ioOO

•

right hand

output fuse

max. 2.5 Amp

quick blow

[SA150)

rnax. 3.15 Amp

quick blow

(SA200)

mains fuse

NOT USER

REPLACEABLE

power supply fuses

-RFPLA(

Figure 6. Location of Fuses