Sony STR-K790 Service Manual - Page 21
Schematic Diagram, Digital Board 4/5
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4-8. SCHEMATIC DIAGRAM - DIGITAL BOARD (4/5) - STR-K790 1 2 3 4 5 6 7 8 9 10 11 MAIN BOARD STANDBY (3/4) BOARD A CNP504 D (Page 29) CNP801 C (Page 28) 1 +R2 2 STOP 3 STDBY GND 4 +9V (STDBY) 5 PW_RY 6 +R4 7 R4 GND H/P_RY H/P CTRL C/REAR/SB_RY FRONT_RY PROTECTOR B DIGITAL BOARD (4/5) C 6 2 DIGITAL BOARD (1/5) D (Page 18) DIGITAL BOARD 15 W1000 (1/5) (Page 18) E 56 59 11 58 DIGITAL BOARD 60 (2/5) (Page 19) F +R4 +2.65V/+1.85V D1109 D1108 D1107 D1110 D1111 5 4 3 2 CL021 1 CNP506 5P CL025 D1107-1111 MA111-TX CL026 CL027 CNP505 7P D1001 1SR154-400TE-25 IC1904 +3.3V REG IC1904 BA33BC0FP-E2 7.9 3.3 1 VCC OUT GND 3 2 C1021 0.47 C1022 470 10V IC1031 IC1031 +5V REG BA50BC0FP-E2 8.5 5 1 VCC OUT 3 GND 2 C1031 0.47 C1032 470 10V IC1901 IC SI-3008KWFE IC1901 +3.3V REG 1 2 3 4 5 8.5 2.6 3.3 C1906 470 10V C1905 0.1 C1908 470 10V R1179 10k R1180 10k R1088 10k FB1308 0uH R1105 10k R1186 10k R1129 100 R1183 10k R1184 10k R1181 10k R1182 10k VOL_A VOL_B SIRCS AD2 AD1 17 DC_CONTROL CL033 16 GND 15 GND CL028 14 +3.3V(STDBY) CL029 13 +5V 12 VOL_JOG_2A 11 VOL_JOG_2B 10 PW_SW 9 SIRCS 8 AD2 7 AD1 CL030 6 FL_LAT CL031 5 FL_DIN CL032 4 FL_CLK 3 INPUT_JOG_4A 2 INPUT-JOG_4B 1 CNS513 17P DCAC_IN H DISPLAY BOARD CNS102 (Page 32) No mark:FM G 90 89 b9 91 92 97 99 93 94 95 96 98 a1 a2 a5 a4 a6 a3 a7 a8 b8 a9 b1 b2 b3 b5 b4 b6 b7 14 DIGITAL BOARD (5/5) (Page 22) STR-K790 21 21
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