Icom IC-R7000 Service Manual page 22

SECTION 6 MAINTENANCE AND ADJUSTMENT
6·1 PREPARATION BEFORE SERVICING
1. Detach the power cable and turn OFF the POWER
SWITCH before performing any work on the
receiver.
2. DO NOT short circuit components while marking
adjustments.
3. Use an insulated tuning tool for all adjustments.
4. DO NOT force any of the variable components.
Tune them slowly and smoothly.
5. Follow the instructions exactly. If an indicated
result is not obtained, repeat the instruction until
the correct result is obtained.
6. Check the condition of connectors, solder joints
and screws when adjustments are complete. Com-
firm that components do not touch each other.
7. Confirm defective operation of the receiver first
when checking an out-of-service unit.
8. Use the correct tools and test equipment.
9. To remove the receiver covers, refer to SECTION
5-1.
10. Re-check for the suspected malfunction with the
POWER SWITCH ON.
11. Check the defective circuit. Measure the DC
voltages of the collector, base and emitter of each
transistor.
6-1