Dell P992 - Page 38

P992 (E) 4-16
123456
7
8910
A
B
C
D
E
F
(4) Schematic Diagram of H4 Board
4.6
3.1
0
0.5
1
2
3
4
5
6
7
8
S1400
S1401
Q1400
LED DRIVE
LED DRIVE
Q1401
C1498
R1402
R1404
R1421
R1424
FB1402
FB1403
D1400
R1406
R1407
CN1400
DTC114ESA-TP
0.1
:B
100
:RN
R1403
100
:RN
470
:RN
10k
:RN
22k
:RN
SML79423C-TP15
H4(USER CONTROL)
DTC114TSA
R1401
220
:RN
R1400
220
:RN
-+
KEY SCAN
LED 1
TO D- b BOARD
CN1103
CHASSIS GND
LED 2
GND
+5V
GND
GND
AG
POWER
150
220
8P
1.1µH
1.1µH
S1402
BRT+
S1404
CONT-
S1405
MENU
B-SS9330<U/C>-H4..-EPS05
T_AMB
C1407
FB1404
R1419
R1420
TH1400
10k
47
16V
JW
100k
D1403
RD5.1ESB
D1402
RD5.1ESB