F-G-34 PARTS-SERVICE Date: April 20, 1985 Models: R25A, R30C, GRAM R30CH, R40BH Subject: Electronic Control Module EPROM Installation Logic card EPROMS must be properly oriented when field installed. EPROM damage can result if improperly installed. The EPROM index slot should always be installed toward the blue test points on the logic card as shown in Illustration A. Index Slot Toward Test Points Illustration 3 A3 We reserve the right to make changes in design or add improvements without incurring the obligation to make such changes in equipment previously manufactured. H6030