Sharp FO-2970M Service Manual - Page 65

A B C D E F G H I FO-2970MU 6 - 5 Modem block 6 +3.3V C45 0.1 C46 0.1 C47 0.1 C48 0.1 C371 0.1 +5V C49 0.1 DG C376 0.1 +5VA L101 C57 1 10 2 22/50 C50 0.1 C51 0.1 C52 0.1 DG 5 IC8 FM336 33600 bps FAX MODEM 38 VDD 50 VDD 71 VGG 69 VDD1 63 VDD1 13 VDD1 57 VDD1 84 VDD1 92 VDD1 26 MAVDD TALK 37 RI 76 OH 49 RINGD 77 SPKR 27 TXD 11 RXD 67 TP205 TP206 TP207 +5V R382 10K R383 10K 5/9 6 SPKRP (6-3D) 5 62 VCORE RTS 78 C389 DG C58 22/50 C379 0.1 (1-6I) D[7:0] D0 87 D0 CTS 12 TP208 0.1 RLSD 9 TP209 D1 88 D1 D2 89 D2 DTR 68 DG MAG MAG D3 90 D3 D4 91 D4 DSR 75 XTCLK 64 TP210 D5 93 D5 TDCLK 10 D6 94 D6 (1-5I) A[4:0] D7 95 D7 RESERVED 35 4 A0 96 RS0 RESERVED 36 A1 97 RS1 RESERVED 40 4 A2 2 RS2 M_CNTRL_SIN 42 A3 3 RS3 SR1IO 61 A4 4 RS4 (2-1D) /MDMRD R374 100 7 RD SLEEP 56 TP211 (2-1D) /MDMWR R375 100 6 WR IA_SLEEP 70 (2-1D) /MDMCS R376 68 5 CS M_STROBE 47 3 (2-1D) /MDMINT IC18C 74HCU04 6 5 R377 4.7K R378 TP204 10 +3.3V R398 N.M 21 SR4IN 46 M_RXOUT 79 IRQ 17 N.C EYESYNC 23 EYECLK 24 M_SCK 45 EYEXY 74 GRO0 81 RDCLK 8 TP212 3 20 N.C YCLK 72 DG 39 N.C XCLK 73 41 N.C 48 N.C TXA2 28 TXA2 (6-5B) 34 POR TXA1 29 TXA1 (6-5B) (2-1D) /MDMRST 18 RESET RIN 32 SIGRX (6-3A) C380 C381 R379 2200P 2200P 47K 54 N.C 55 N.C VREF 30 VC 31 2 DG DG 60 N.C 19 SR4OUT RESERVED 1 RESERVED 14 C61 10/50 C388 0.1 2 44 M_TXSIN RESERVED 15 RESERVED 58 D100 1SS355 K A +5V +3.3V 43 M_CLKIN 22 CLK_OUT 85 XTALI/CLKIN RESERVED 59 RESERVED 66 RESERVED 82 RESERVED 83 C60 10/50 C386 0.1 REG1 86 XTALO XC62FP3302P 2 52 VSUB RESERVED 51 2 3 1 C104 C322 1 1 1 DG C382 18P X2 28.224MHz 1 R390 R380 16 VSS 53 VSS 65 VSS 80 VSS 99 VSS MAVSS 33 MAVSS 25 PLL_VDD 98 MAG C53 C59 +3.3V L102 10 2 R384 0 1 DG 18P 100 MAG PLL_GND 100 0.1 10/50 R381 0 DG MAG DG A B C D E F G H I