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