Sharp HT-CN300BK Service Manual - Page 17

P18 P17 P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 G9 G8 G7 G6 G5 G4 G3 G2 G1 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 P9 83 P8 84 P7 85 P6 86 P5 87 P4 88 P3 89 P2 90 P1 91 G9 92 G8 93 G7 94 G6 95 G5 96 G4 97 G3 98 G2 99 G1 100 F3 F4 2 1 FL690 DISPLAY Q691 KRC107 M C B E C690 1/50 R691 1K R690 3.3 R692 100K IC601 UPD780206 SYSTEM MICROCOMPUTER C600 0.022 VDD1 1 RDS_READY 2 R602 1K RDS_RDCL/KARA_LAC 3 R603 1K RDS_RDDA /MIC_IN 4 R604 1K RDS_RESET 5 R605 1K -20_ATT 6 R606 1K FAN_CONT 7 R607 1K CCB_CE0 8 R608 1K CCB_CE1 9 R609 1K RESET 10 X2 11 X1 12 13 VPP/IC 14 XT2 15 R615 1K SPN VDD2 16 17 R617 1K CLK 18 R618 1K DATA CCB_DO 19 R619 1K CCB_CE2 20 R620 1K FLD_CS 21 22 FLD_SCK NO_USE1 23 FLD_SDATA 24 AVSS 25 POWER_LEVEL 26 R626 1K PROTECT 27 R627 THERMO 28 R628 TUN_SM 29 R629 DIST_1 30 R630 C601 1000/6.3 R610 1K C611 12P(CH) X611 C612 18P(CH) R614 10K 1K R672 10K 1K R673 10K 1K R674 10K 1K R675 10K C622 4.7/50 HT-CN300 CNP601 14 13 12 11 10 9 8 7 6 5 4 3 2 1 14 FW8 -20DBATT F_RLY FAN_CONT C_RLY CCB_CE0 S_RLY CLK W_RLY DATA THERMO CCB_DO PROTECT D_GND POWER_LEVEL 1 CNP708 TO DSP PWB P21 12 - F 48 DSP_POWER_IN 47 DSP_SMUTE_IN 46 VDD3 45 DSP_RST 44 STAND_BY_LED 43 POWER_ON_LED 42 SMUTE(NO_USE) 41 REM_ACK_LED 40 VSS 39 REMCON 38 DSP_STAND_BY 37 DSP_RX-IN_OUT 36 SYS_STOP 35 AVREF 34 AVDD 33 KEY_0 32 KEY_1 31 DIST_0 R635 1K IC604 VHC541AF BUFFER AMP. 1.5K 1.5K R638 R637 3.3K 3.3K SW678 POWER R678 10K R677 10K R676 10K R636 10K R633 1K IC603 74VHC541AF BUFFER AMP. 2 C620 0.022 1 10 9 GND 8 7 6 5 11 12 13 14 15 16 17 18 19 20 VCC 4 3 2 1 D681 DS1SS133 D680 DS1SS133 BACK-UP UN_SW_5V SW_5V D684 1N4004S R680 4.7K D685 DS1SS133 D683 DS1SS133 R683 47K Q682 KRC107 M C B E C686 0.1/50 C685 0.022 IC602 KA7042AP VOLTAGE C682 REGULATOR 3.3/50 3 1 2 C680 10/50 R667 R666 D682 DS1SS133 R682 100K C681 0.022 DISPLAY PWB-B1 7 8 9 10 11 12 Figure 17 SCHEMATIC DIAGRAM (4/17) - 17 -