Extron electronics MLS 304 Replacement Instructions

Plug the output
cable from fhe
power supply to
the PCB's power
input connector.
Install screws (2).
10. Connect the switcher's power output cable to the power supply's 2-pin power
input connector. See the previous illustration.
11. Connect power output cable from the power supply to the switcher's power
input connector. See the previous illustration.
12. Install the insulator and attaching screws that were removed in step 7.
Position insulator under
the heat sink.
Heat Sink
C The insulator must be tucked under the heat sink to protect components
from possible damage.
13. Replace the top cover and reinstall the 14 screws removed in step 3.
Plug the PCB's power output cable
to the power supply's 2-pin power
input connector.
Install
standoffs (2).
Fasten the
insulator to the
standoffs.
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Power Supply Replacement Instructions
for the MLS 304/306/406
1. Disconnect the power cord from the switcher.
2. If the switcher is rack mounted, remove it from the rack.
3. Remove the 14 screws (8 on the top and 3 on each side) that secure the
switcher's top cover, as shown below.
Remove (14)
screws from
top and sides.
4. Lift the cover straight up and off.
5. Disconnect both power supply cables, as shown below. Disconnect the two-
pin power input cable from the power supply. Disconnect the power supply
output cable from the switcher's main PCB board (not the power supply).
Remove the screw.
Disconnect the
cable from the
main board
end.
Remove the screw.
Power Supply to be Removed
6. Remove the four screws that secure the power supply to the base of the
switcher. Retain at least two of the screws for installation of the new power
supply.
Extron Electronics, USA Extron Electronics, Europe
1230 South Lewis Street Beeldschermweg 6C
Anaheim, CA 92805 3821 AH Amersfoort, The Netherlands
800.633.9876 714.491.1500 +800.3987.6673 +31.33.453.4040
FAX 714.491.1517 FAX +31.33.453.4050
www.extron.com
Lift cover
straight up.
Remove the screw.
Disconnect the
cable from the
power supply's
2-pin connector.
Remove the
screw.
Extron Electronics, Asia Extron Electronics, Japan
135 Joo Seng Rd. #04-01 Kyodo Building, 16 Ichibancho
PM Industrial Bldg., Singapore 368363 Chiyoda-ku, Tokyo 102-0082
+800.7339.8766 +65.6383.4400 Japan
FAX +65.6383.4664 +81.3.3511.7655 FAX +81.3.3511.7656
68-1262-04
Rev. A
09 07