Chapter 4 209
Assembly Replacement
A27 Rear Panel Connector Board
Replacement
1. Mount the rear panel connector board to the rear dress panel. Using
the 9/16 open-end wrench, replace the four nuts that secure the rear
panel connectors to the rear dress panel. Torque to 21 inch pounds.
2. Using the T-10 driver, replace the 13 screws to secure the rear dress
panel to the rear frame. For alignment purposes, tighten the screws
silkscreened with a #1 and a #2 first. Torque to 9 inch pounds.
3. Reconnect the ribbon cable to the daughterboard.
4. Replace the A17, A18, and A19 assemblies. Refer to “A17 RF, A18
Reference, and A19 Synthesizer Assemblies” replacement procedure.
5. Replace the top brace. Refer to the “Top Brace” removal procedure.
6. Replace the instrument outer case. Refer to the “Instrument Outer
Case” removal procedure.
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