ic228.1 Model: IC-228 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 #: 13889-002 Date: May 1, 1989 Subject: "Dampened" S-meter response at low ambient tem- peratures. Procedure 1. Replace the following components on the Main Board. Original New ICOM Part Value Value P/N R33 15K 8.2K 915-01112 C8 120pf 50V 39pf 50V 918-01643 Bulletin #: 13888-001 Date: May 17, 1988 Subject: Some radios may not maintain programmed memory data Information: There is a solder bridge that is missing to com- plete the lithium battery circuit to maintain memories. Procedure Write to ICOM's customer service department for a copy of this service bulletin.