Sharp CDC2900 Service Manual - Page 25

CD-C622/C2900 RECORD SIGNAL CD SIGNAL IC601 M62439SP AUDIO PROCESSOR 1 20 2 19 R608 1.5K 3 18 R606 1.5K 4 17 R604 1.5K R602 1.5K 5 16 6 15 C612 0.033 7 14 C614 0.22 8 13 9 12 0 11 R610 10K R612 15K R623 5.6K ZD601 MTZJ2.4B R629 560(1/2W) C616 4.7P C620 10/50 C618 0.022 ZD602 MTZJ2.4B C602 4.7/50 C606 4.7/50 C604 4.7/50 -B R630 560(1/2W) R642 47K R640 47K R626 2.2K C628 0.22 R624 330 -B +B +B R641 47K R638 220K R637 220K P21 12 - D CNP99 TO CD SERVO PWB DIGITAL OUTPUT PWB-A6 CNS99 D_OUT 1 3 2 3 +4.3V 2 L99 +B 1 2 1 1 2.2µH 3 CD GND C99 C98 IC99 BI99 100/10 0.022 +B R633 22K R631 22K R632 22K C631 390P C632 390P R634 22K L-CH R-CH JK601 VIDEO IN P23 12 - F TO TUNER SECTION D601 1SS133 D602 1SS133 C630 0.022 TUN_R 18 A_GND TUN_L 2 19 DO 20 CE 21 DI 22 CL 23 D_GND A_12V 24 10 -B CNS701 P28 1 - D TO DISPLAY PWB R175 1K REC_L 3.3/50 Q114 2SC3331 C156 3.3/50 R132 33K R174 5.6K R172 220K R170 680 C120 560P R126 5.6K R136 622:5.6K 2900:8.2K C154 47/16 R142 56 0.0033 MUTING Q122 2SC3331 R156 220K 0V R154 10K 0.7V 0V R146 10K REC_R R153 0V 10K 0.7V Q121 0V 2SC3331 MUTING R157 220K 0.068 C140 R140 560 C146 220/10 C145 22/25 C142 1/50 C136 C132 C130 0.001 470P R134 68K R138 6.8K R124 3.9K 114 C122 30P 1/50 C134 22/25 R123 3.9K 21 20 -+ 112K ich=T1 112K 4 5 113 30P C121 1/50 R125 5.6K C119 560PR131 33K C127 0.022 19 18 17 16 15 14 13 Nor/CrO2 RIPPLE Vcc +- 56K Hich=CHROME +- 56K ALC ALC GND 6 7 8 9 10 11 12 C133 22/25 C128 3.3/50 R137 6.8K C131 0.001 C141 1/50 C139 0.0033 C135 0.068 R141 56 C129 470P R139 560 R135 622:5.6K 2900:8.2K R145 10K IC101 AN7345K PLAYBACK AND RECORD/PLAYBACK AMP. SWITCHING Q124 2SA1015 GR R164 4.7K R158 220 11.7V R162 47K 11.6V +B 0V 0V 1 L103 100µH 2 3 11.6V 0V Q126 KRC104 M R160 150/1/2W BIAS R167 100K R166 47K BIAS OSC 0V Q128 KTC3203 Y C150 0.0039(ML) 0V 0V R168 12 C151 0.027 (ML) L104 330µH +B C152 47/25 +B -B -B +B CLK 1 DO 2 CE 3 DI 4 A_GND 5 VF1 6 -VP 7 VF2 8 SPN_P 9 HI_CUT 10 S_MUTE 11 SP_DET 12 SP_RLY 13 T_T1 T2 14 T_BIAS 15 REC/PLAY 16 D_GND 17 M_12V 18 SPA_SIG 19 -15V 20 +5V 21 CNP701 M_12V 7 -15V 6 VF1 17 -VF 15 VF2 16 +5V SP_DET 8 SP_RLY 4 5 MAIN PWB-A1(2/3) P26 1 - E TO POWER SECTION 7 8 9 10 11 12 Figure 25 SCHEMATIC DIAGRAM (6/10) - 25 -