Sharp XG-PH70X Service Manual page 119

/0.5A
+16V
C234
0.1U/50V
/1.63A
GNDFEE +13V
C238
0.1U/50V
GNDFEE C263
4
GND NC
12UH
+5V75 C250
3.3KU/10V
/2.5A
V
GND GND
E
KC C249
0.1U/50V
4 R247
51KF/0805
5 C248
2200U/10V
R248
30.1KF/0805
GNDFEE
R250
1M F/0805
GND
PINS 15PINS
N7003A CN7003B
1
3V3 B+3V3 +3V3
2
3V3 B+3V3
3
ND GND
4
ND GND
+13V
5
13V B+13V
6
13V B+13V
7
ND GND
8
ND GND
+5V75
9
V75 B+5.7V
10
ND GND
11 +16V
C B+16V
12
ND GND
13
U4V N/C
14
ND GND
15
PCON1
CON0 PCON1
GNDFEE
CN7003D
N7003C
3 +2V5
2.5V B+2.5V
2
2.5V B+2.5V
1
2.5V B+2.5V
11 12
AND SHADED COMPONENTS=SAFETY RELATED PARTS
VCC
Q251
G1 NTD4302
1 !
VCC
R261
10KF/0805
D2
Q252
NTD4302
G2 !
1
R265
10KF/0805
GND
+3V3/3.5A
GND
R249A
0.015 ohm
R249B
0.015 ohm
FG
R249C
0.015 ohm
GNDFEE
+5V75
PCON1
VCC
SEN_1
2V5_REF
GND
Bu4V_SW
GNDFEE
G1
G2
PP_SIG
ENABLE1
HS231
For D232 D233 D334
GND
13 14
XG-PH70X/XG-PH70X-N (1st. Edition)
L251 C264
12.5uH 22U/6.3V
+2V5
/3.9A
C260
1KU/10V
+
C261
0.1U/50V
GNDFEE
GNDFEE
GND
R291
470F/0805
Bu4V
IC280
TL431
GNDFEE
CONN BD
1
+5V75
2
PCON1
3
VCC
4
SEN_1
5
2V5_REF
6
GND
7
+2V5 +2V5
8
BU4V_SW
9
GNDFEE
10
D2 D2
11
G1
12
G2
13
14 PP_SIG
ENABLE1
15 16 17
8 – 37
Bu4V_SW
PinC
R280
1KF/0805
U132
!
TLP421
SEN_1
PinL
2V5_REF
1 C283
0.1U/50V
C282
4.7UF/25V
18 19