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)
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| R902 | 5 |
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| 0 | |
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| VDD_UNREG | |
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| MAIN | |
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| IC903 |
| IC B/D | DGND | BOARD |
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| (Page 23) | |
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| DC/DC CONVERTER |
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1 | IN |
| D1 | 10 | L901 |
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2 | GND |
| INP | 9 |
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IC903 | 4.7∝H |
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3 | SS | MAX1557ETB | LX | 8 | VDD_DDCOUT20 | |
B |
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| VDD_UNREG |
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| VDD_DDCOUT20 |
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| VDD_GP1 |
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| 11 | XUSB_OK | XUSB_OK | |
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| XCHG_DET | XCHG_DET | ||
| MAIN | CHG_XFLT | CHG_XFLT | |
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C | BOARD |
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(3/6) | CHG_ICTL | CHG_ICTL | ||
(Page 24) | CHG_XCHGEN | |||
| CHG_XCHGEN | |||
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| CHG_PEN2 | CHG_PEN2 | |
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| USB_SUSPEND | USB_SUSPEND | |
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C911
0.001
C903
0.1
CHGXFLT | XUSBOK | C907 22 | XCHGDET |
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R907 |
| R923 |
| R911 |
470k |
| 470k |
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| 470k |
C917 | C915 | 0.1 | C909 |
22 | 22 | 22 | |
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| C906 |
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5 4 | OUT |
| PGND | 6 7 | C912 | C921 |
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PGND | 22 | 22 |
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XSHDN | D2 |
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| 11 |
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| R913 | 2 |
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| 10k | |
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| R914 | |
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| 47k | MAIN |
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| BOARD |
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| (1/6) |
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| C913 | R915 | (Page 22) |
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| 33k | ||
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| 22 |
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| DGND |
C908 |
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| C920 | C910 | R901 |
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0.1 |
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| 4.7 | 0.1 | 0 |
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| AGND |
VCC_VBAT |
DGND
10
D |
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| CN901 | CL901 |
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BATT+ | 2P |
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1 |
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BATT- | 2 | CL902 |
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LITHIUM ION |
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STRAGE BATTERY |
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3.7V 610mAh |
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E |
| C901 |
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| 10 |
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| C902 | 0.1 | |
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VCC_VBAT |
| CHG_XCHGEN | |
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VCC_DCIN |
| CHG_PEN2 |
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| R903 | |
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| 470k | |
F |
| R921 |
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| 220k |
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8 |
| CL904 |
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| 2.7 | 2.7 | 2.7 | 3.7 | 3.7 | 2.7 | IC B/D |
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| 25 | 24 | 23 | 22 | 21 | 20 |
| 19 |
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| GND | /FLT | /UOK | /DOK | SYS | SYS |
| /CHG |
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| CL903 |
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| IC901 |
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| 18 | 3.7 | |||
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| 2.9 | /DONE |
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| BAT | ||||||
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| 3.7 | ||||||||
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| 1 |
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| 2 | DC | POWER CONTROL, |
| BAT | 17 | 0 | |||||
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| 2.9 |
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| 16 | |||||||
R908 | 10k | 3 | DC | CHARGE CONTROL |
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| USB |
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2.7 |
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| IC901 |
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| 15 | 0 | |||
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| 4 | /CEN |
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| USB |
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R904 | 470k | 2.7 |
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| MAX8677AETG |
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PEN1 |
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| TSET |
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| 5 |
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| 0 | |||
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| 0 |
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| 13 | |
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| 6 | PEN2 |
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| USUSS |
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| PSET | VL | GND | CT | ISET |
| THM |
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| 7 | 8 | 9 | 10 | 11 |
| 12 |
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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 |
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| CHG_ICTL |
| DGND |
| VCC_VBUS |
| AGND |
Q903
2SK3541T2L
CHARGE CONTROL
2.9 
| 0 | 0 | 0 | 0 | 0 |
| R919 |
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| 10k |
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| 0 | 0.1 | 0.068 | 22k |
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| R909 |
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| R906 | C904 | C905 |
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S | 3300 |
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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
