Sony HCD-EC68P Service Manual - Page 32

HCD-EC68P/EC78P 6-7. SCHEMATIC DIAGRAM - MAIN Section (2/3) - 1 2 3 4 • See page 39 for waveforms. • See page 42 for IC Block Diagrams. 5 6 7 8 9 MAIN BOARD (2/3) A L801 AM FREQUENCY COVERAGE 4 3 C819 470p D801 SVC347A-TL-E R822 100 B R814 22k JW801 JW802 C823 220 10V TP686 R824 R825 470 4.7k 2 6 1 R826 1k D802 1PS226-115 C820 C834 R837 5p 10p 100k R841 10k R838 22k R843 100k C835 0.047 C836 0.022 C837 10p R842 0 D804 SV230-TB-E L805 AM TRACKING 1 6 2 5 3 4 R827 100k Q801 2SC3052F-T1-LF +3V REGULATOR R813 470k TP688 C838 D803 SV230-TB-E C840 0.1 1000p TP689 R801 8.8 2.9 100 C804 18p C806 C824 C841 1000p TP690 C847 0.1 C821 2200p C822 22 50V 3.4 R806 47k C R811 R812 470p 1 C805 0.47 R839 10 C826 1000p L803 FM FREQUENCY COVERAGE R840 0 L804 FM TRACKING R846 10 X801 75MHz C803 1 100k 47k C807 1 R823 10k C828 100p R817 47k R818 10k R831 2.2k C827 0.047 R805 470k Q802 2SC3052F-T1-LF +5V REGULATOR JW803 C808 18p R819 33k R829 4.7k R844 C844 C846 2.2k 0.1 0.01 6.9 4.8 R808 TP687 22 0.9 4.7 4.7 4.7 4.8 4.2 1.8 1.8 1.6 1.7 2.2 2.9 1.4 1.2 3 0 D 5.5 R804 21 22 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 FM RF-IN GND VCC2 FM-OSC AM-OSC BO2 BO1 LP-OUT LP-IN AGC MPX-IN VDD XOUT R809 XIN PD IC801 R802 100 22 AM/FM DET, OSC, MIX, PLL, IF AMP FM RF-OUT AM RF-IN AM DET-OUT FM DET-OUT FM-MIX P-COMP FM-DET R803 2.2k DO CL DI CE VSS REG IC801 LV23003VA GND1 AM-MIX VCC1 AM IF-IN FM IF-IN P-DET L-OUT R-OUT 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 IC B/D 2.2 2.2 2.4 4.8 4.8 2.2 2.2 3.7 3.6 0 2.3 2.3 0 0 0 2.9 E C802 R807 100 R815 22k 16V 10k R810 4.7k 1M R832 C830 2p C829 0.47 TU-ANSD TU-DO R816 1k TU-CLK TU-DI F TU-CE TUNER-R R820 4.7k TUNER-L R821 4.7k C814 ∗ G C815 ∗ C816 0.01 C817 0.01 C809 1000p C810 1000p C811 1000p R830 3.3k C831 0.47 C832 0.47 L802 FM DETECTOR 4 3 2 6 1 R836 6.8k CF801 C845 0.22 T801 AM IF 4 3 2 6 1 C848 0.1 C833 220 10V C843 0.1 FL801 O CF I G R845 0 10 R847 0 TUNER-R R709 1k TUNER-L CD-R CD-L R704 4.7k R700 4.7k AUDIO-R AUDIO-L ∗ C814, 815 4700p (EC68P: AUS/EC78P: UK) 0.01 (EC68P: US/EC78P: US, CND) H C850 0.1 C640 2200p I R788 15k JW804 R787 C639 15k 2200p C644 1 50V C636 1 50V C650 1 C649 220p C656 1 C655 220p C646 1 50V C645 1000p R696 10k R697 1k C665 1 50V C666 1000p R708 10k C648 1 C647 2200p C658 1 C657 2200p C652 1 C654 1 R701 10k R702 10k R741 1k R742 1k Q624 KTC3203Y-AT 3.2 Q622, 624 3.8 +3.3V REGULATOR 7.2 Q622 2SC3052F-T1-LF R722 100 3.8 0 DMP-L DMP-R R717 68 R718 68 R719 68 C704 470p R716 1k 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 D618 MAZ8039GHLS0 TC/DMP-R FIL TC/DMP-L GND TUNER-R SDATA TUNER-L SCLK CD-L OUT-R AUDIO-R SB-R AUDIO-L SURR SEL-R OUT-L VOL-R BASSB-R VOL-L BASSA-R TRE-L BASSA-L TRE-R BASSB-L 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R720 22k CD-R SEL-L IC602 C669 220 INPUT SELECTOR, 10V ELECTRICAL VOLUME J IC602 BD3499FV-E2 VCC SB-L IC B/D 15 16 17 18 19 20 21 22 23 24 25 26 27 28 3.6 3.3 3.3 7.4 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 0.022 C674 0.047 C638 0.047 C637 0.047 C634 0.047 C633 O-CD-ON CD-AVR K HCD-EC68P/EC78P 1 L1 MAIN BOARD (1/3) 2 (Page 3 31) C663 1 50V R751 5.6k R750 4.7k R749 4.7k R753 5.6k C664 1 50V C684 0.068 C685 0.068 C788 0.015 C789 0.015 C687 0.068 C686 0.068 R681 22k R684 R732 22k 100 R752 5.6k R754 5.6k R731 R706 100 220 R707 220 R715 100 C713 470p C662 1000p C659 10p C660 10p C667 100 16V C661 10 50V AMP-L AMP-R I2C-CLK I2C-DATA 32 32 11 12 13 14 15 FL803 O I BPF G TP683 TP684 TP685 D805 1PS226-115 D806 1PS226-115 CN801 3P ANTENNA FM/AM 1 AM 2 GND 3 FM TU-CE TU-DI TU-CLK TU-ANSD TU-DO I2C-DATA I2C-CLK 5V-ON/TP-REC-MUTE O-POWER AMP-ON I-P-MONI O-CD-ON DMP-DET/USB-RST O-CD-M-MUTE O-CD-SBSY O-CD-REQ O-CD-CCE O-CD-BUCK I/O-BUS3 I/O-BUS2 I/O-BUS1 I/O-BUS0 O-CD-RST VSTBY DMP-TXD DMP-5V-DET DMP-RXD R660 0 TP656 TP657 TP658 TP659 TP660 TP661 TP662 TP663 TP664 TP665 TP666 TP667 TP668 TP669 TP670 C681 2200p C683 2200p C690 2200p C679 0.1 CD-R CD-L C671 100 16V C703 2200p O-CD-RST I/O-BUS0 I/O-BUS1 I/O-BUS2 I/O-BUS3 O-CD-BUCK O-CD-CCE O-CD-REQ O-CD-SBSY C691 0.1 C675 1 50V C676 1 50V C689 470p C682 2200p D620 1N4002B D619 1N4002B C673 470 10V C693 0.1 O-CD-M-MUTE DMP-DET/USB-RST C694 0.1 C692 0.01 TP637 TP639 TP641 TP642 TP643 TP644 TP645 TP646 TP647 TP648 TP649 C680 2200p TP651 TP652 TP654 DMP-DET/USB-RST CN803 31P 31 O-TU-CE 30 O-TU-DI 29 O-TU-CLK 28 I-TU-ANSD 27 I-TU-DO 26 I/O-I2C-DATA 25 O-SW-ON/I-TP-STATE 24 I/O-I2C-CLK 23 5V-ON/TP-REC-MUTE 22 O-POWER 21 I-DMP-DET/O-USB-RST 20 O-CD-M-MUTE 19 O-AMP-ON 18 O-CD-SBSY 17 O-CD-REQ 16 O-CD-CCE 15 O-CD-BUCK 14 I/O-BUS3 13 I/O-BUS2 12 I/O-BUS1 11 I/O-BUS0 10 O-CD-RST 9 I-P-MONI 8 O-CD-ON 7 D-GND 6 V-STBY 5 M-GND 4 I-DMP-TXD 3 I-DMP-5V-DET 2 O-DMP-RXD 1 NC L PANEL BOARD CN301 (Page 37) CN608 21P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 AVDD (3.3V) R-OUT DACGND L-OUT AGND RST BUS0 BUS1 BUS2 BUS3 BUCK CCE REQ SBSY DGND D-OUT DVDD (3.3V) VM (7V) MGND CD DRIVE MUTE ZDET/LRCKIN M CD BOARD CN201 (Page 29) 5 2 4 MAIN BOARD (3/3) (Page 33)