Icom IC-R20 Service Manual - Page 8

SECTION 3 DISASSEMBLY INSTRUCTIONS (1) REMOVING THE REAR PANEL q Unscrew 4 screws, A (2 × 115 mm, black). w Unscrew 2 screws, B (2 × 8 mm, black). e Unplug W1 and J8 (LOGIC unit) to separate the front and the rear panels. A (3) REMOVING THE REC UNIT q Unscrew 4 flat-head screws, H (2 × 4 mm, silver). w Unsolder 1 point, I. e Remove the REC unit in the direction of the arrow. H B J8 W1 LOGIC unit Speaker Front panel Rear panel I REC unit (2) REMOVING THE LOGIC UNIT q Remove 2 knobs, C, and unscrew 2 nuts, D. w Unscrew 2 flat-head screws, E (2 × 4 mm, silver), and 1 pan-head screw, F (2 × 4 mm, black). e Unsolder 10 points, G. r Unplug J5 (bottom side of LOGIC unit) and J1 (RF unit) to separate the LOGIC unit. t Remove the LOGIC unit in the direction of the arrow. CD F E J5 (4) REMOVING THE RF UNIT q Unscrew 3 flat-head screws, J (2 × 4 mm, silver). w Unsolder 2 points, K. e Remove the RF unit in the direction of the arrow. J G LOGIC unit K K J1 RF unit 3 - 1