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Table of contents
NTP: 506-6501-202 Issue: 00.01 Status: Standard Date: June 1998
2 Maintenance overview
Figure 2-1: Unlocking the upper housing 2-4
Figure 2-2: Proper sequence to open housing 2-7
Figure 2-3: How the housing assembly swings open 2-7
Figure 2-4: ESD connection and rear terminal PCP 2-8
Figure 2-5: Rear terminal PCP power connections 2-9
Figure 2-6: Connecting the IAS module and rear terminal PCP 2-10
Figure 2-7: Checking that the left tiebar is down (unlocked) 2-11
Figure 2-8: Flowchart — replacing the front housing 2-14
Figure 2-9: Hinge sockets and tiebar locations 2-17
Figure 2-10: Locking/unlocking the terminal with the tiebar 2-18
Figure 2-11: Flowchart — replacing the housing lock 2-20
Figure 2-12: Exploded view of lock assembly 2-21
Figure 2-13: Handset cord attaches through swivel 2-23
Figure 2-14: Flowchart — replacing handset and swivel assembly 2-24
Figure 2-15: Accessing the armored cord in the swivel 2-26
Figure 2-16: Accessing the armored cord in the swivel 2-27
Figure 2-17: Flowchart — replacing the rear terminal PCP 2-28
Figure 2-18: Replacing the rear terminal PCP 2-30
Figure 2-19: The IAS module in the front housing 2-31
Figure 2-20: Interconnection diagram showing IAS 2-32
Figure 2-21: Flowchart — installing an IAS module 2-33
Figure 2-22: Connections on the IAS module 2-35
Figure 2-23: Interconnect cable connector polarity 2-36
Figure 2-24: Wire positions on the terminal block 2-37
Figure 2-25: IAS module terminal block connections 2-38
Figure 2-26: Pivot locations on the rear housing 2-40
Figure 2-27: Flowchart — Replacing tiebar pivots 2-41
Figure 2-28: Locating the horizontal tie bar 2-43
3 PCP assembly components
Figure 3-1: PCP assembly components 3-2
Figure 3-2: Flowchart — working with the PCP assembly, page 1 3-3
Figure 3-3: Control PCP cable connections 3-7
Figure 3-4: PCP assembly in position 3-7
Figure 3-5: PCP assembly removed 3-9
Figure 3-6: Removing/replacing PCP assembly 3-10
Figure 3-7: Control/telephony PCP connection 3-12
Figure 3-8: Locating the PCP assembly frame tabs 3-13
Figure 3-9: Replacing firmware on the through-hole control PCP 3-17
Figure 3-10: Flowchart — replacing SCA daughter board, page 1 3-18
Figure 3-11: Positioning the SCA daughter board 3-21
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