SECTION 1 SPECIFICATIONS...1-1-1-2 SECTION 2 CONTROL FUNCTIONS...2-1-2-6 SECTION 3 INSIDE VIEWS...3-1-3-4 SECTION 4 BLOCK DIAGRAMS...4-1-4-2 SECTION 5 CIRCUIT DESCRIPTION ... 5-1-5-15 5-1 Receiver 5-1 5-2 Transmitter 5-3 5-3 PLL(HPL)UNIT...5-5 5-4 LOGIC UNIT ... 5-6 5-5 FILTER UNIT...5-13 5-6 CSS AND DC-DC UNITS...5-14 5-7 OTHER CIRCUITS ... 5-15 SECTION 6 MECHANICAL PARTS AND DISASSEMBLY ... 6-1—6-11 SECTION 7 MAINTENANCE AND ADJUSTMENT...7-1-7-9 7-1 PREPARATION BEFORE SERVICING...7-1 7-2 PLL ADJUSTMENT ... 7-2 7-3 Transmitter ADJUSTMENT...7-4 7-4 Receiver ADJUSTMENT ... 7-8 SECTION 8 CIRCUIT DIAGRAMS/VOLTAGE CHARTS ••• 8-1-8-14 SECTION 9 BOARD LAYOUTS(IC-271 H)...9-1-9-6 SECTION 10 IC SPECIFICATIONS...10-1-10-13 SECTION 11 PARTS LIST ... 11-1-11-21 SECTION 12 SCHEMATIC DIAGRAMS...SEPARATE SECTION 13 BOARD LAYOUTS(IC-271 A/E) ... SEPARATE