4-2
MAINTENANCE ORBAN
MODEL
9400
Subassembly Removal and Replacement
See page 6-29 for the
Circuit Board Locator and Basic Interconnections
diagram.
1.
Removing the Top Cover:
To access any internal board (including the display assembly), you must remove
the top cover.
A)
Disconnect the 9400 and remove it from the rack.
Be sure power is disconnected before removing the cover.
Warning:
Hazardous voltage is exposed with the unit open and the
power ON.
B)
Set the unit upright on a padded surface with the front panel facing you.
C)
Remove all eighteen screws holding the top cover in place, and lift the top
cover off.
Use a #1 Phillips screwdriver.
2.
Removing the Front Panel Assembly:
A)
Detach the five cables that connect the display board assembly to the base
board. Gently lift each cable up from where it connects to its jumper so that
the jumper pins unseat without bending or breaking.
B)
Detach the front panel from the unit.
a)
Disconnect the three-wire cable at the back of the encoder.
b)
Detach the ground lug that connects the panel's ground wire to the chassis.
Use a ¼-inch nut driver or needle-nose pliers.
c)
Remove the front panel.
The front panel is held in place by four ball studs at each corner. The
panel should snap away from the chassis if you apply a little force.
C)
Using a screwdriver, remove the ten gold-colored screws and washers that
connect the display board to the front of the chassis.
D)
Remove the display board assembly by removing the tape from the top front
edge of the chassis so that the white ribbon cables are no longer attached to
the chassis and the display panel is free.
Do not remove the tape from the white ribbon cables.
3.
Removing the RS-232 Connector Board:
A)
If you have not done so yet, remove the top cover (step 1, above).
B)
Using a 3/16-inch hex nut driver, remove the two hex nuts holding the RS-232
connector to the chassis.
Summary of Contents for Optimod-AM 9400
Page 1: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 7: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 52: ......
Page 204: ......
Page 232: ......
Page 260: ......
Page 261: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29...
Page 267: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 35 CPU Module...
Page 273: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 41 RS232 BOARD PARTS LOCATOR...
Page 275: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 43 8300 POWER SUPPLY PARTS LOCATOR...
Page 284: ...6 52 TECHNICAL DATA ORBAN MODEL 9400 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 292: ...6 60 TECHNICAL DATA ORBAN MODEL 9400 DISPLAY BOARD PARTS LOCATOR...
Page 293: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...