Service Manual

MM-E 2072-09333-00
3-9
3-5.4 Micom-Z Troubleshooting Charts
1. Perform the checks presented in Figure 3-1.
2. If a problem is detected at a checkout step of Figure 3-1, refer to the troubleshooting chart
identified next to the corresponding step, and then perform the troubleshooting activities listed
in the chart until the problem is corrected.
3. After correcting the problem, repeat the checkout procedure in accordance with Figure 3-1.
Perform visual inspection of equipment. Ensure
there is no physical damage.
If damage is found, repair or replace damaged
components before proceeding with checkout
No
Proceed to
troubleshooting
chart 1
Connect power cable to the power connector
and a wattmeter and dummy load to the ANT
connector. Attempt to turn on
Start
Radio
powered on?
Yes
Normal display?
YesNo
1
2
Connect a microphone to
the mic jack. Key the mic
and whistle into it
3
Radio keyed?
Yes
No
Transmit power
present?
4
Yes
Run the automatic BIT routine
Any errors
displayed?
5
No
Continue to checkout
step 6
Proceed to
troubleshooting
chart 2
Proceed to
troubleshooting
chart 3
Proceed to
troubleshooting
chart 4
No
Proceed to
Table 3-2
Yes
Figure 3-1.A. MICOM-Z Checkout Chart (Sheet 1 of 2)