Sony HCD-EC68P Service Manual - Page 31

HCD-EC68P/EC78P 6-6. SCHEMATIC DIAGRAM - MAIN Section (1/3) - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 A M M601 (FAN) B (EC78P) R605 ∗ R603 4.7 D622 MAZ8082GMLS0 R630 47k MAIN BOARD (1/3) CN601 3P VDD+ 1 GND 2 VDD+ 3 TP601 TP602 R604 100k 8.8 0 Q603 2SC3052F-T1-LF PROTECT DETECT ∗R605 15 (EC78P: US, CND) 56 (EC68P/EC78P: UK) CN602 5P C601 47 25V C602 22 25V Q601 KTA1266GR-AT 0.4 16.6 R726 R725 R724 15 15 15 JW750 JW751 JW752 16.7 16.7 R601 470 R626 10k Q601, 602 FAN MOTOR DRIVE R627 4.7k Q602 2SC3052F-T1-LF D621 0 MAZ8043GMLS0 R629 4.7k 0 C613 10 50V C614 4.7 50V R672 10k 10.8 Q608 2SC3052F-T1-LF STANDBY SWITCH 2.3 IN-R 1 C F A-GND 2 IN-L 3 HI AMP BOARD AMP-ON 4 CN152 PROTECT 5 (Page 34) PA-GND 1 E OUT-R 2 +VH 3 HI AMP D BOARD CN151 -VH 4 OUT-L 5 (Page 34) CN632 5P TB601 TP609 TP612 TP614 R634 56 R635 56 R636 56 R608 10 RY601 D603 MA2J1110GLS0 R632 100k SPEAKER R HIGH FREQ. IMPEDANCE USE 8Ω L TP613 L602 R606 10 C604 0.1 R633 100k C615 0.1 C605 C616 E C603 4700p C606 L601 0.1 R607 0.1 R631 4700p 10 10 PROTECT D614 MA2J1110GLS0 2.9 O-POWER R667 47k R666 1k C630 47 10V AMP-R AMP-L + + + + (Page 35) H LOW F AMP BOARD CN102 CN603 5P IN-R 1 A-GND 2 IN-L 3 AMP-ON 4 PROTECT 5 TP615 TP617 TP618 TP619 C700 1000p C699 1000p AMP-R AMP-L G LOW AMP BOARD CN104 G (Page 35) PA-GND 1 OUT-R 2 +VH 3 -VH 4 OUT-L 5 CN633 5P (EC78P) TB602 SPEAKER LOW FREQ. H IMPEDANCE USE 8Ω R SPEAKER L IMPEDANCE USE 6Ω (EC68P) TP621 TP622 TP623 TP624 TP626 TP625 D601 MC2838-T112-1 R612 10 R610 R609 4.7k 4.7k L604 R611 10 L603 RY602 C607 0.1 C608 0.1 R640 100k R639 100k C617 0.1 C618 0.1 R638 68 D604 MA2J1110GLS0 R641 68 R642 68 R648 47k R651 4.7k R728 4.7k R658 470 2W HP-R R662 470 2W Q612 ISA1235AC1TP-1EF C629 4700p 8.9 8.8 D605 0 MA2J1110GLS0 R669 100k R637 4.7k R644 1k R663 1k R670 10k HP-L PROTECT AMP-ON C714 47 10V I R650 4.7k R727 4.7k Q611, 612 PROTECT DETECT ET601 E R645 2.2k 0.8 0.7 8.8 0 R647 10 R649 2.2k (CHASSIS) C610 C609 R615 C620 J E ET602 4700p 4700p 10 100 10V (CHASSIS) C619 0.01 R643 10k Q604 2SC3052F-T1-LF RELAY DRIVE R628 10k R675 47 Q611 2SC3052F-T1-LF R674 47 R614 10k R613 10k D606 MC2836 D602 MC2838-T112-1 R652 100 Q605 2SC3052F-T1-LF R646 8.8 100 Q606 2SC3052F-T1-LF 8.8 0 Q605, 606 0 PROTECT DETECT C695 1 C631 100 16V R677 10k R676 10k R673 0 D615 1N4002B C696 1 C632 4.7 50V SP-RELAY VSTBY CD-AVR I-P-MONI PROTECT O-POWER D791 MA2J1110GLS0 R792 220k ∗C622, 626 2200 50V (EC68P) 3300 50V (EC78P: UK) 3300 63V (EC78P: US, CND) D609 1N5402-F46 R624 10k R618 10k R623 10k R617 10k R622 33k R616 ∗ R619 ∗ R791 100k D612 2A02M D611 2A02M (EC78P) D630 D629 1N4002B 1N4002B (EC68P) C627 2200 25V C628 1000 25V R729 100k C626 ∗ C622 ∗ R678 47k 4.2 Q618 ISA1235AC1TP-1EF DC DETECT 4.7 R687 22k D631 MA2J1110GLS0 D607 D608 D610 R625 33k C623 0.1 100V R621 4.7k C612 0.22 R620 4.7k C611 0.22 C621 0.1 100V D628 MA2J1110GLS0 0 R685 4.7k R689 27k R690 2.2k C641 3.3 50V 0.7 0.4 Q619 2SC3052F-T1-LF RELAY DRIVE R691 10k R686 56k R692 4.7k C642 0.022 D617 MC2838-T112-1 1N5402-F46 1N5402-F46 1N5402-F46 ∗ R616, 619 3.9k (EC68P) 10k (EC78P: UK) 15k (EC78P: US, CND) TP627 TP628 TP629 CN604 8P 1 2 3 4 5 6 7 8 RELAY ON/OFF V STBY AC DETECT VH(AC) VL(AC) GND VL(AC) VH(AC) J PT BOARD CN051 (Page 41) R693 1k AUDIO-L AUDIO-R HP-L HP-R AMP-ON SP-RELAY TP630 TP631 TP632 TP633 TP634 TP635 7 3 MAIN BOARD 6 (3/3) (Page 33) 1 2 1 MAIN BOARD (2/3) 3 (Page 32) IN 1 GND OUT 3 CN605 9P D REG BOARD W610 (Page 38) 1 AUDIO-L 2 A-GND 3 AUDIO-R 4 HP-GND 5 HP-L 6 HP-R 7 AMP-ON 8 SP-RELAY 9 GND C JACK BOARD (Page 38) HCD-EC68P/EC78P 31 31