IC04AT.7 Model: IC-04AT 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 #: 02988-002 Date: January 1, 1988 Subject: Transmitter delay may be excessive at low tempera- tures (can be up to 2 or 3 seconds). Procedure 1. Remove the front and rear covers. 2. Remove the volume and squelch knobs by pulling up on them. Push down the high/low power and lamp switch. Remove the four screws in the metal chassis corners. Unfold the chas- sis. 3. Replace R262 (currently 560K) with a 2.2 Meg resistor (ICOM P/N 915-01277). 4. Reassemble the radio.