Standard Bias Table; Table 4-2. Standard Operating Bias - Dc Voltages; Table 4-3. Standard Operating Bias - Clock Sources - Motorola APX 3000 Detailed Service Manual

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Troubleshooting Procedures: Standard Bias Table

Standard Bias Table

outlines some standard supply voltages and system clocks which should be present under

normal operation. These should be checked as a first step to any troubleshooting procedure.

ON_OFF_Switch

Table 4-2. Standard Operating Bias – DC Voltages

ON_OFF_Switch. Radio on when GND

Radio Battery Voltage

Radio Supply Voltage

LDO Output Present When Battery is Attached

Switcher Output

Switcher Output

Table 4-3. Standard Operating Bias – Clock Sources

MAKO 24MHz & tapped into CPLD

OMAP CPU Clock

DDR Clocks (Complementary signals)

GPS RTC clock

RF Freq synth IC (Abacus) TCXO