Owner`s manual

MAINS CONNECTIONS
Your SNAPPERs have been factory set to the correct mains voltage for your country. (Well, that is what we
intended to do when we knew where they would be initially shipped.) The mains voltage that we built these
Snappers to operate with is marked on the serial badge, located on the rear of the chassis. Check that this complies
with what comes out of your wall.
There is no voltage changeover switch! The power transformer's primaries must be either wired in parallel for 120v
operation or in series for 230v or 240v countries so be sure to check the sticker and the serial number voltage
indication for proper mains voltage. Failure to properly comply with mains voltage requirements can cause
extensive damage to the system, which of course would not be covered by the warranty. If you relocate from, say,
a 120v country to a 240v country, you will need us to rewire the Snapper's power transformer for you or get
instructions from us to perform this operation if you happen to be as good at soldering as we are, or know someone
who is.
The mains fuse may be checked by first disconnecting the IEC mains cord from the power supply’s power inlet
plug. Then gently push the light grey fuseholder retainer clip located next to the IEC power socket. The fuse and
cap should spring outward toward your fingers. Inspect the mains fuse for the proper rating; change if necessary.
Refer to the fuse rating chart in the specifications section of this manual. If you do not know what a blown fuse
looks like, you may measure for continuity across the fuse ends. If your meter reads “OL” when you measure
across the fuse, that means “Open Leads” and that would mean the fuse is blown. A blown fuse usually indicates A
Very Bad Thing occurred. If this has happened to you, try to figure out why it may have happened. (Using a Fast
Blow fuse when we have specified a SLO-BLO fuse is one reason, output tubes running away into never-never
land are another reason.) If you have no idea why a fuse might have just blown on its own, you might want to
consult with Manley Labs or your dealer for further advice as Something Very Bad might have occured, like the
power transformer might have decided to retire early.
One way this could happen is by running the wrong mains voltage into the unit. Be sure not to do that.
If you live in a strange place...
Export units for certain markets have a moulded mains plug fitted to comply with local requirements. If your unit
does not have a plug fitted the coloured wires should be connected to the appropriate plug terminals in accordance
with the following code.
GREEN/YELLOW EARTH terminal
BLUE NEUTRAL terminal
BROWN LIVE terminal
As the colours of the wires in the mains lead may not correspond with the coloured marking identifying the
terminals in your plug proceed as follows;
The wire which is coloured GREEN/YELLOW must be connected to the terminal in the plug which is marked by
the letter E or by the safety earth symbol or coloured GREEN or GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the terminal in the plug which is marked by the letter N or
coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal in the plug which is marked by the letter L
or coloured RED.
DO NOT CONNECT OR SWITCH ON THE MAINS SUPPLY UNTIL ALL OTHER
CONNECTIONS HAVE BEEN MADE. (...or else...)
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