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1991-02-22
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34 lines
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.