Maintenance; Operating Recommendations; Fuses Replacement; Mains Fuse Replacement - Promax MC-377+ Instruction Manual

INSTRUCTION MANUAL MC-377+.

5. MAINTENANCE

5.1 Operating recommendations

One of the more common causes of breakdowns in TV signal level meters is the
generation of internal short-circuits due to the introduction of small conductors. These
conductors tend to be coaxial cable shielding wire, you are therefore advised TO NOT
CUT COAXIAL CABLES NEAR THE INSTRUMENT.

5.2 Fuses replacement

5.2.1 Mains fuse replacement

The fuseholder lid is placed in the mains base and it is the voltage selector. See
figure 1 Selection of mains voltage, paragraph 3.1.1 Selecting the mains operating
voltage.
To substitute the fuse, disconnect the power cord.
With an appropriate screwdriver remove the fuseholder lid.
Substitute the melt fuse for another with following characteristics:
FUSE TYPE SHOULD BE 5 x 20 mm AND:
2 A
3.15 A
AVOIDING THESE DIRECTIONS COULD DAMAGE THE EQUIPMENT
When inserting the fuseholder lid be careful that the voltage selector is in the correct
position according to the mains.

5.2.2 Internal fuses which user cannot replace

The following fuse is found on the base board. Its location identification and
characteristics are the following:
F1, 5 A
May 2001
T 250 V FOR 220, 230/240 V
T 250 V FOR 110 AND 125 V
F 63 V SMD
IMPORTANT
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