Motorola ASTRO XTS 2500 Service Manual page 163

Troubleshooting Procedures: Operational Error Codes
Error Code
02/88
02/90
6816985H01-B
Table 5-4. Additional Error Code Action Items (Continued)
Cycle power to the radio. If this does not fix the problem, then the radio should be
sent to the depot for re-flashing of the DSP code. Continued failure requires
examination and/or replacement of the SRAM (U804).
Cycle power to the radio. If this fails to fix the problem, then the radio should be
sent to the depot for re-flashing of the DSP code. Continued failure may require
replacement of U800, the Patriot MCU/DSP.
Corrective Action
5-5
August 16, 2007