User Manual

CCP Backplane Troubleshooting – continued
Jan 2002
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SC4812ET BTS Optimization/ATP — CDMA LMF
No DC Voltage (+5, +6.5, or +15 Volts) to a Specific GLI2,
BBX2, or Switchboard
Follow the procedure in Table 6-24 for problems with DC input voltage.
Table 6-24: No DC Input Voltage to any C–CCP Shelf Module
Step Action
1 Verify steps outlined in Table 6-23 have been performed.
2 Inspect the defective board/module (both board and backplane) connector for damage.
3 Replace suspect board/module with known good board/module.
TX and RX Signal Routing
Problems
Follow the procedure in Table 6-25 for problems with DC input voltage.
Table 6-25: No DC Input Voltage to any C–CCP Shelf Module
Step Action
1 Inspect all Harting Cable connectors and back–plane connectors for damage in all the affected
board slots.
2 Perform steps outlined in the RF path troubleshooting flowchart in this manual.
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