July 30, 2014 MN000770A01-AA
4-2 Troubleshooting: Power-Up Errors
4.1.3 Control Head ID Error
The APX Dual-Radio only allows the O7 Control Head ID to be set to #1. If the ID is not set as
required, “CH ID# ERR” shall be displayed and the radio is not able to function. User can use the
control head Front Panel Programming feature to change the control head ID.
For setting and changing the Control Head ID Reference, refer to (Section 2.2.2.5, Setting the Initial
Control Head ID) of the APX Mobiles And Control Heads Installation Manual (P/N 6878215A01).
4.1.4 Software Mismatch
Both radios shall have the same firmware version. If the firmware version does not match, the APX
Dual-Radio system shall power up with fatal error, and “SW Mismatch” is displayed along with both
radios firmware versions.
Both radios shall have the same language type. If the language type does not match, the APX
Dual-Radio system shall power up with fatal error, and “Lang Mismatch” is displayed.
4.1.5 General Radio Error
When the radio is turned on (power-up), the radio performs cursory tests to determine if its basic
electronics and software are in working order. Problems detected during these tests are presented
as error codes on the radio’s display. Table 4-1 aids in understanding general power-up error code
displays.
Table 4-1. APX Mobile Dual-Radio Power-Up Self-Check Error Codes
Error Code Description Error Type Corrective Action
01/02 or 21/02 FLASH ROM Codeplug Checksum Non-Fatal Reprogram the codeplug
01/12 or 21/12 Security Partition Checksum Non-Fatal Send radio to depot
01/81 or 21/81 Host ROM Checksum Fatal Send radio to depot
01/82 or 21/82 FLASH ROM Codeplug Checksum Fatal Reprogram the codeplug
01/84 or 21/84 External EEPROM blank (or SLIC
failure)
Fatal Send radio to depot
01/88 or 21/88 External RAM
Note: Not a checksum failure
Fatal Send radio to depot
01/90 or 21/90 General Hardware Failure Fatal Turn the radio off, then on
01/92 or 21/92 Security Partition Checksum Fatal Send radio to depot
01/93 or 21/93 FLASHport Authentication Code
Failure
Fatal Send radio to depot
01/94 or 21/94 Internal EEPROM blank. Fatal Send radio to depot
01/98 or 21/98 Internal RAM Fail Fatal Send radio to depot
01/A2 or 21/A2 Tuning Codeplug Checksum Fatal Send radio to depot
02/81 or 22/81 DSP ROM Checksum Fatal Send radio to depot
02/88 or 22/88 DSP RAM
Note: Not a checksum failure
Fatal Turn the radio off, then on
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