Pioneer VSX 108 Service Manual - Page 26

VSX-108 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. •List of IC LA1186N, STK407-070, 00201838-040 (LA1838), 00206458-040 (LA6458S), 00201041-040 (LV1041M), 00262419-010 (M62419FP), 00272358-040 (LC72358N), 00202879-040 (BU2879AK) LA1186N (TUNER PCB : IC101) • FM Front End IC • Pin Arrangement • Block Diagram Vref Buffer RF MIX Reg OSC 1 9 1 2 3 45 67 8 9 00201838-040 (LA1838) (TUNER PCB : IC102) • AM/FM IF, MPX 1-Chip Tuner IC • Block Diagram 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 ALC BUFF. AM OSC REG. AM AM MIX RF AMP. AGC 3rd 5th DECODER ANT1-BIRDIE P-DET. STEREO SW MUTE SD COMP AM IF DET AM S-METER FF 304kHz FF FF 38k 19k∠π/θ FF 19k∠θ PILOT DET. FM S-METER S-CURVE AM/FM IF-BUFF. FM IF FM DET. TUNING DRIVE STEREO DRIVE GND Vcc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 26