Motorola APX 2000 Detailed Service Manual

4-4 Troubleshooting Procedures: Power-Up Self-Check Errors
4.4 Power-Up Self-Check Errors
Each time the radio is turned on, the MCU and DSP perform a series of internal diagnostics. These
diagnostics consist of checking such programmable devices as the FLASH ROMs, the EEPROM,
and SRAM devices.
Problems detected during the power-up self-check routines are presented as error codes on the
radio’s display. For non-display radios, the problem is presented at power up by a single, low-
frequency tone. Table 4-4 lists possible error codes, a description of each error code, and a
recommended corrective action.
U6101 R6115 GPS RTC clock 32.768KHz
Y701
(RF board)
R6218 RF Freq synth IC (Abacus) TCXO 16.8MHz
Table 4-4. Power-Up Self-Check Error Codes
Error Code/ Error
Message
Description Corrective Action
01/02 FLASH ROM Codeplug Checksum Non-Fatal Error Reprogram the codeplug
01/12 Security Partition Checksum Non-Fatal Error Send radio to depot
01/20 ABACUS Tune Failure Non-Fatal Error Turn the radio off, then on
01/22 Tuning Codeplug Checksum Non-Fatal Error Send radio to depot
01/81 Host ROM Checksum Fatal Error Send radio to depot
01/82 FLASH ROM Codeplug Checksum Fatal Error Reprogram the codeplug
01/88 External RAM Fatal Error – Note: Not a checksum failure Send radio to depot
01/90 General Hardware Failure Fatal Error Turn the radio off, then on
01/92 Security Partition Checksum Fatal Error Send radio to depot
01/93 FLASHport Authentication Code Failure Send radio to depot
01/98 Internal RAM Fail Fatal Error Send radio to depot
01/A2 Tuning Codeplug Checksum Fatal Error Send radio to depot
02/81 DSP ROM Checksum Fatal Error Send radio to depot
02/88 DSP RAM Fatal Error – Note: Not a checksum failure Turn the radio off, then on
02/90 General DSP Hardware Failure (DSP startup message not
received correctly)
Turn the radio off, then on
09/10 Secure Hardware Error Turn the radio off, then on
09/90 Secure Hardware Fatal Error Turn the radio off, then on
Table 4-3. Standard Operating Bias – Clock Sources
Clock
Source
Reference Description Frequency

Motorola APX 2000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Bluetooth	No
Frequency Range	700/800 MHz
Power Output	1-5 W (VHF), 1-3 W (700/800 MHz)
Channels	Up to 1, 000
Battery Life	Up to 10 hours (digital)
Digital Protocol	APCO P25
Frequency	VHF: 136-174 MHz, UHF: 380-470 MHz, 700/800 MHz: 764-870 MHz
Power	1-3W (700/800 MHz), 1-5W (VHF)