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8B. Service
- Must be performed by a technician -
(3) Replacing the Switching Regulator
z
To avoid electric shock, accidents or injuries to yourself or other people, or damage to the electronic
circuits, be sure to turn off the power switch before starting work.
z
PC boards are sensitive to static electricity. If a person handles a PC board while
charged with static electricity, the parts on the PC board may be damaged. Before
handling a PC board, discharge the static electricity from your body; for example,
by touching the surface of grounded metal.
Turn off the power switch. (See “7-6-1 Turning the Power Switch On” on page 39.)
Pull out the PCB base. (See “8B-4-4 (2) Replacing the Main PC Board” on page 146.)
Disconnect the connectors (two in case of 12 V, three in case of 24 V) of the switching regulator
to be replaced.
Connector
Connector
Switching regulator (24 V)
Switching regulator (12 V)
Spacer
Unlock the four spacer locks, and replace the switching regulator.
To install, perform the procedure in reverse.
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2/5/2013 8:12:02 AM