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IC2KL
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1990-10-14
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67 lines
Model: IC-2KL
Division: Amateur
Note: This service bulletin is meant for technical per-
sonnel with experience working on solid state com-
munications equipment. Damage caused by im-
properly installing this modification may cause
ICOM to charge for subsequent repairs to the
product. ICOM does not warrant this modification.
Bulletin #: 13889-017
Date: May 1, 1989
Subject: C8 and C9 occasionally fail due to oscillation
Information: C15 and C16 are added and the value of C8 and C9
are changed to prevent RF oscillation and failure
Procedure
1. Disassemble the amplifier and locate C8 and C9 on the main
PA unit.
2. Remove C8 and C9 .12 uf chip and replace with .02 uf 500V
ceramic (ICOM P/N 918-06119) keeping the leads as short as
possible.
3. Add C15 and C16 .02 uf 500V ceramic (ICOM P/N 918-06119) in
paralleled with C8 and C9. Again keep the leads as short as
possible.
4. Reassemble the amplifier and check for self-oscillation at
full power output.