Sony NWZA816P Service Manual - Page 27

NW-A805/A806/A808/NWZ-A815/A816/A818 5-9. SCHEMATIC DIAGRAM - MAIN Section (6/6) - • See page 28 for IC Block Diagrams. 1 2 3 4 5 6 7 8 9 10 11 MAIN BOARD (6/6) A B VDD_UNREG VDD_DDCOUT20 VDD_GP1 11 XUSB_OK XCHG_DET XUSB_OK XCHG_DET MAIN CHG_XFLT CHG_XFLT BOARD C (3/6) (Page 24) CHG_ICTL CHG_ICTL CHG_XCHGEN CHG_XCHGEN CHG_PEN2 CHG_PEN2 USB_SUSPEND USB_SUSPEND VCC_VBAT C906 0.1 R907 470k C917 22 C915 22 CHG_XFLT XUSB_OK C907 22 XCHG_DET R923 470k C911 0.001 C903 0.1 R911 470k C909 22 C908 0.1 54321 PGND 6 7 8 9 10 R902 0 IC903 DC/DC CONVERTER IC B/D IN GND SS IC903 MAX1557ETB OUT XSHDN D1 INP LX PGND D2 11 C912 22 L901 4.7µH C921 22 R913 10k R914 47k C920 4.7 C910 0.1 C913 22 R901 0 R915 33k D LITHIUM ION STRAGE BATTERY 3.7V 610mAh E BATT+ BATT- CN901 2P CL901 1 2 CL902 VCC_VBAT VCC_DCIN F 8 MAIN BOARD (4/6) (Page 25) G DGND VCC_VBUS AGND GND 2.7 /FLT 2.7 /UOK 2.7 /DOK 3.7 SYS 3.7 SYS 2.7 /CHG 25 24 23 22 21 20 19 IC B/D C901 10 C902 0.1 CHG_XCHGEN CHG_PEN2 R903 470k R921 220k CL904 CL905 CL906 CL907 CL908 CL909 CL910 CHG_ICTL CL903 2.9 2.9 R908 10k 2.7 R904 470k 2.7 0 654321 /DONE DC DC /CEN PEN1 PEN2 Q903 2SK3541T2L CHARGE CONTROL 2.9 R919 10k 0 S IC901 POWER CONTROL, CHARGE CONTROL IC901 MAX8677AETG 3.7 BAT 3.7 BAT 0 USB 0 USB TSET 0 USUSS 13 14 15 16 17 18 0 PSET 0 VL GND 0 CT 0 ISET 0 THM 7 8 9 10 11 12 R906 3300 C904 0.1 C905 0.068 R909 22k R912 8200 R905 1500 TH901 R910 33k R922 220k USB_SUSPEND VDD_UNREG DGND 5 MAIN BOARD (2/6) (Page 23) VDD_DDCOUT20 DGND 2 MAIN BOARD (1/6) (Page 22) AGND DGND VDD_UNREG 10 MAIN BOARD (5/6) (Page 26) NW-A805/A806/A808/NWZ-A815/A816/A818 27 27 Note: When IC901 and IC903 cannot exchange with single. When IC901 and IC903 are damaged, exchange the entire mounted board.