CONTENTS (Cont.)
PAGE
3. MAINTENANCE
2.5 BOARD INSTALLATION INSTRUCTIONS
2 . 5 . 1 E L N B - A
2.5.2 ETSB-A and ETSB-B
2.5.3 ETSB-B and ETSB-C
2.5.4 ECMB-A, ECMB-B and ECMB-D
ESTB-C and EDTB-B
2 . 5 . 6
E C P B - A
2.6 POWERING UP THE SYSTEM
2.7 INSTALLATION PROGRAMMING
2.7.1 Programming Data
2.7.2 Checking Programmed Data
2.7.3 Modifying Programmed Data
2.7.4 Re-initializing Programmed Data
2.7.5 Facility Programming
2.7.6 Summary of Facility Programming and
2.8 FUNCTIONAL TEST
2.8.1 Exchange Line Test
2.8.2 Intercom Test
2.8.3 Station Test
2.8.4
DSS Console Test
2.8.5 Miscellaneous Tests
2.8.6 Internal Extension Test
2.8.7
T e s t s
Initial Values
2.9 RECORDS
3.1 TEST EQUIPMENT AND MAINTENANCE AIDS
119
3.2 TEST POINTS
119
3.3 POWER SUPPLY INDICATORS
123
3.4 MAINTENANCE PROCEDURES
124
3.5 FAULT FINDING FLOWCHARTS
128
3.6 SUGGESTED REPAIR ACTIONS 173
3.7 REPAIR PROCEDURE 184
4. APPENDIX 1
Hardware Requirement Block Diagrams
Installation Parts Check List
Maintenance Parts Check List
Serial and Item Number Parts List
185
82
83
84
85
85
87
88
89
90
91
91
91
92
92
92
105
107
107
109
112
113
114
115
116
117
(ii)
ISSUE 2