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