11
DISASSEMBLY/ASSEMBLY PROCEDURES
Note: The following procedure is for the
1401™ series II. The disassembly for the
1401 series I is the same with the excep-
tion of the earlier units.
1. Bottom Cover Removal
1.1 Turn the unit over onto its top.
1.2 Remove the four screws that secure
the bottom cover to the heatsinks.
1.3 Center the slide pot knobs and lift off
the cover.
2. Bottom Cover Replacement
2.1 Place the bottom cover onto the unit
while aligning the slide pot knobs onto the
slide pots.
Note: The 1401 series I has two slide pot
knobs and one power switch knob.
2.2 Secure the bottom cover to the
heatsinks.
3. Top Cover Removal
3.1 Perform procedure 1.
3.2 Remove the two screws located on the
top of the top cover and turn the unit over
onto its top cover.
3.3 Locate and remove the three screws
securing the top cover to the PCB.
One screw is located near the center of the
PCB, another screw is located at the right
side edge of the front panel, and the other
is located at the rear of the unit holding the
harness clamp in place.
3.4 Lift the PCB away from the top cover
assembly.
4. Top Cover Replacement
4.1 Place the PCB assembly onto the top
cover.
4.2 Secure the top cover to the PCB
assembly using the three screws removed
in procedure 3.3.
Note: Be sure to use the plastic washers
when replacing the screws.
4.3 Replace the two screws located on the
top of the top cover.
4.4 Perform procedure 2.
Note: The following procedure is for the
1401 series I with serial numbers below
5,000. The serial number is stamped into
the heat sink.
5. Top Cover Removal
5.1 Perform procedure 1.
5.2 Remove the single phillips head screw
and nut that is nearest to the back of the
1401. This holds the PCB to the cover.
5.3 Remove the remaining three phillips
screws and nuts that hold the Delay Turn
On/Off board to the main board.
Note: Make note of the position of the
small spacers. There are also three longer
spacers located under the Delay Turn On/
Off PCB.
5.4 Remove the two screws that hold the
top cover to the PCB assembly.
5.5 Lift the top cover from the PCB
assembly.
6. Top Cover Replacement
6.1 Place the top cover on to the PCB and
secure it to the heatsink.
6.2 Replace the three phillips screws and
align the spacers with the Delay Turn On/
Off PCB.
6.3 Replace the screw and nut at the back
of the unit and perform procedure 2.