Sharp XL-HP515 Service Manual - Page 14

XL-HP515 AXSMECeLuaHrdH-vrHkiAioPcePe5tP51M1T55aEnuRal4. DIAGRAMS [1] BLOCK DIAGRAM FM ANTENNA TERMINAL SO302 B.P.F BF301 IC301 TA7358AP FM FRONT END 1 34 57 6 9 8 FM RF L312 T301 FM OSC +B5 FM IF T302 CF302 OSC BUFF Q302 10.7 MHz ZD351 5.1V 450 kHz T351 CF352 CF351 X351 456 kHz AM IF 12 4 5 9 8 17 13 IC303 LA1832S FM IF DET. FM DET FM+B GND L 14 FM MPX./AM IF R 15 VCO FM/AM MO/ST MPXIN FM/AM OUTAM IF AM MIX OUT 24 23 21 7 18 16 12 20 STEREO AM OSC OUT AM OSC IN AM RF IN CNP301 AM LOOP 2 ANTENNA 1 AM AM BAND TRACKING COVERAGE T303 T306 +B6 VT X352 4.5 MHZ CE DI CLK DO Q361 IC302 LC72131 20 1 22 15 16 11 3 4 5 6 PLL(TUNER) OSC 17 FM/AM MO/ST +B5 7 9 10 21 +B5 FM+B Q360 FM SWITCHING FROM CD SECTION CNP2 CNS2 1 2 3 SWITCHING REC /P.B. HEAD L-CH TAPE R-CH Q101Q104 AC BIAS L(TA) 2 R(TA) 23 L REC 9 REC R REC 16 11 12 15 JK690 L VIDEO/AUX L 9 R R 16 TAPE L 10 R 15 TUNER L 11 R 14 CD L 12 R 13 DI 1 CE 2 IC601 CLK 24 LC75341 21 R AUDIO PROCESSOR 4 L 13 +B5 P.B 4 L PB 21 R 7 18 8 17 3 23 +B5 H/N 7 L REC 18 R IC101 AN7345K PLAYBACK AND RECORD /PLAYBACK AMP. REC/PLAY Q107 Q108 MUTING ñ20dB ATT Q601 Q602 Q603 Q604 +B5 A_+10V +B4 LD_+8V +B7(A_+5V) +B8(D_+5V) +B9(SW_+5V) ERASE HEAD SWITCHING SWITCHING Q105 Q106 Q114 +B5 Q112 Q113 SWITCHING +B5 BIAS Q111 OSC L103 Q109 SWITCHING BIAS Q110 BIAS +B_PROTECT Q851 +B10 SYSTEM MUTE M UNS Figure 4-1 BLOCK DIAGRAM (1/3) 4 - 1