
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
H:ON
L:OFF
WDR831
C
+5V
A4
16
27
Thursday, December 13, 2007
Title
Size
Document Number
Rev
Date:
Sheet
of
SYS-ON-OFF
(20)
+5V_SYS
+5V_M
+5V_AUD
+5V_RF
VIN_SYS
GND_DC
GND_DC
GND_DC
GND_RF
+5V_SYS
GND_DC
-5V_SYS
GNDM
+5V_Spe
+5V_Spe
GND_DC
GND_SIGNAL
C415
10U/35V/1210
R460
0/J/0603
C399
10U/10V/0805
C224
0.1U/50V/0603
C145
10U/35V/1210
C146
NC
C140
3.3N/50V/0603
C221
0.1U/50V/0603
R626
0/J/0603
R201
43K/F/0603
C416
0.1U/50V/0603
TC19
47U/10V/B
1
2
FB66
2A/600OHM/0805
C401
0.1U/50V/0603
FB26
1A/600OHM/0603
C176
NC
U15
MP2307
8
1
2
3
4
5
6
7
9
SS
BS
IN
SW
GND
FB
COMP
EN
gnd
L9
22UH/2.5A/D104C
TC16
47U/10V/B
1
2
C400
10U/10V/1206
R191
7.5K/F/0603
R488
0/J/1206
C175
10U/16V/1210
C174
10U/16V/1210
C398
10U/10V/0805
FB32
1A/600OHM/0603
TC39
47U/10V/B
1
2
R204
10K/F/0603
D14
B240
A
K
C156
1N/50V/0603
C262
0.1U/50V/0603
C298
10N/50V/0603
C397
10U/10V/0805
+
D29
1N4148
A
K
C396
0.1U/50V/0603
D27
BAT54
J
K
A
VC4
NC
Summary of Contents for PET831
Page 9: ...3 0 INSTRUCTION FOR USE ...
Page 15: ...4 0 MECHANICAL INSTRUCTION 19 Finally we will get the back cabinet ...
Page 21: ...5 0 TROUBLESHOOTING SYMPTOM NO SOUND FROM HEADPHONE ...
Page 24: ...6 0 OVERALL BLOCK DIAGRAM ...
Page 52: ...PET831 main board TOP Layer ...
Page 53: ...PET831 main board BOT Layer ...
Page 54: ...Eject KEY TOP 5 direction KEY TOP LCD Turn board TOP ...
Page 55: ...Eject Key BOT 5 direction key BOT LCD Turn board BOT ...
Page 56: ...TOP Key TOP Layer ...
Page 57: ...TOP Key BOT Layer ...