3 power-up failure, Power-up failure, 3 power-up failure—page 1 – Motorola SSETM 5000 User Manual

Page 107

6881094C12-A

November 11, 2004

Troubleshooting Charts: Power-Up Failure

9-3

9.3

Power-Up Failure—Page 1

MAEPF-27389-D

Radio

Power-Up

Failure

Probe

32.768 kHz

Clock at R316

Signal

Present?

Signal may appear
for a very short period
of time (50 ms). Use
an oscilloscope with
trigger to capture signal.

Verify integrity

of C308 and

C309

Verify Standard

Bias in

Table 5-1

Standard

Bias OK?

Isolate and

Repair Problem

See DC Supply

Failure flowchart

Yes