Sony DG510 Service Manual - Page 20

STR-DG510 5-6. BLOCK DIAGRAM - POWER SECTION - L-CH R-CH R-CH PRE DRIVER IC501 IN 2 8 PRE DRIVE DRIVE +VOUT2 -VOUT2 12 11 -50V +BV POWER AMP Q501-504 R-CH CURRENT DETECT Q505,506 R-CH OVERLOAD DETECT D502,Q507 R-CH SL-CH TUNER/ SR-CH R-CH AUDIO C SECTION (Page 15) C-CH PRE DRIVER IC601 IN 2 8 PRE DRIVE DRIVE +VOUT2 -VOUT2 12 11 IN 2 8 PRE DRIVER IC701 PRE DRIVE DRIVE -50V +BV +VOUT2 -VOUT2 12 11 SW-CH -50V +BV POWER AMP Q601-604 POWER AMP Q701-704 R-CH CURRENT DETECT Q605,606 R-CH OVERLOAD DETECT D602,Q607 R-CH CURRENT DETECT Q705,706 OVERLOAD DETECT D702,Q707 PROTECTOR 61 D1110 FRONT_A_RY 67 PROTECTOR D881-884 Q881-883 D1109 FRT A RY FRONT_B_RY 66 C/REAR/SB_RY 69 SW_RY 70 SYSTEM CONTROL IC1101 (6/6) HP_RY 62 HP DETECT 55 D1107 D1118 FRT B RY C/SUR RY SW RY HP RY HP DETECT -50V +B -B B-SWITCH Q851,852 IC850 2 OVERLOAD DETECT AMP 7 -20V TU+9V +7V -7V +A5V +5V +1.8V +3.3V POWER_RY 58 STOP 48 +3.3V (STBY) +9V (STBY) -20V REG Q801 IC1001 3 +5V REG 1 IC1901 5 2 +3.3V/+1.8V REG 4 IC1904 3 +3.3V REG 1 HP RY FRT A RY FRT B RY C/SUR RY SW RY HP DET RELAY DRIVER Q509 RELAY DRIVER Q508 RY502 RY501 RELAY DRIVER Q608 RY551 RY601 RELAY DRIVER Q708 RY701 RELAY DRIVER Q560 RY702 R-CH J790 PHONES R-CH TM603 (1/2) L FRONT A R TM601 R-CH R-CH L FRONT B R TM603 (2/2) SPEAKERS IMPEDANCE USE 8-16Ω L SURROUND R TM607 CENTER J403 AUDIO OUT SUB WOOFER • Signal path : TUNER (FM/AM) • R-ch is omitted due to same as L-ch. T901 POWER TRANSFORMER (MAIN) IC1902 3 +9V REG 1 IC821 1 +7V REG 3 +16V RECT D811 3 -7V REG 2 IC822 -16V IC1031 3 +5V REG 1 RECT D920-923 R810 R812 RECT R910 F901 D804-807 RELAY DRIVER Q901 F1 F2 -20V RY901 RECT D910-913 D802 T902 POWER TRANSFORMER (SUB) AC IN DETECT Q911 D914 D915 AC IN ~ STR-DG510 20 20