Troubleshooting for Branch Provider (BP) Unit SiUS181631EA
220 Troubleshooting
6.2 Branch Provider (BP) Unit PCB Abnormality
Error Code
E2
Method of Error
Detection
Check data from EEPROM
Error Decision
Conditions
When data could not be correctly received from the EEPROM
EEPROM : Type of nonvolatile memory. Maintains memory contents even when the power supply
is turned off.
Supposed
Causes
îš„
Defective BP unit PCB
Troubleshooting
NO
YES
Replace the BP unit PCB.
Could be other causes
than malfunction (for
example, noise etc.).
(R22092)
Turn off the power once and
turn on again.
Return to normal?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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