Model: IC-751 Bulletin: B1703 Subject: Correction for IC-751A service manual 1. Changes to section 6-3 Adjustment Points BFO Frequency Current Correction Step 2 LSB Mode L34 L33 Step 3 CW Mode L33 L34 Switch Settings Current Correction Step 9 RTTY Mode S1 S2 S2 S1 Step 10 S2 S1