Service manual

Schematic Diagrams
B - 14 CRT & USB (71-P2970-002A)
B.Schematic Diagrams
CRT & USB
Sheet 13 of 28
CRT & USB
+1.5V
+3V
USBVCC
+5V
+5V
SB5V
+5V
USBVCC
+5V
USBVCC
+3V
+5V
+5V
+5V
+5V
SB5V +12V+5V
SB5V
Z1301
Z1302 Z1304
Z1310
Z1309
Z1312
Z1306
Z1305
Z1307
Z1311
Z1313
Z1316
Z1315
Z1314
Z1318
Z1317
Z1329
Z1324
Z1325
Z1303
Z1328
Z1330
Z1320
Z1321
Z1308
Z1331
Z1319
Z1326 Z1327
Z1333
Z1332
R233 1K
R263 2.7K
R225
10K
+
C165
100u/16V_6.3*7
C207
470p
F3 POLY SW 1.5A
Q21
2N3904
B
E
C
T7
T6
C204
470p
R264 2.7K
R234 1K
CA164
0.1u
CA162
0.1u
CA163
0.1u
F2 POLY SW 1.5A
D35
DA204U
C
A
AC
D34
DA204U
C
A
AC
Q54
2N7002
D
G
S
CA158
0.1u
R570 2.2K
R606
4.7K
R235 0_r(0603)
D28
1N4148
C A
R571 2.2K
R223 2.4K_1%
R224
4.7K
U16
FRC-1394-201
1
2
3
4
8
7
6
5
+
CT38
10u/10V_1206
D11
DA204U
C
A
AC
D12
DA204U
C
A
AC
Q20
2N3904
B
E
C
D29
1N4148
C A
D10
DA204U
C
A
AC
D8
DA204U
C
A
AC
D9
DA204U
C
A
AC
Q47
2N7002
D
G
S
R309
75_1%
C286
22p
R592 47
C290
33p
R591 47
Q51
2N3904
B
E
C
C287
22p
L58 0
L56 BEAD FCM1608K121 120ohm1 2
L28 SJ-201209-0600B-N3 600_08051 2
Q46
2N7002
D
G
S
C291
33p
L55 BEAD FCM1608K121 120ohm1 2
R310
75_1%
R605
4.7K
R311
75_1%
L54 BEAD FCM1608K121 120ohm1 2
L59 0
C288
22p
D7
SK54
A C
N
P
Q18
CEM9939A
3
2 1
4 5
6
7 8
S2
G1 S1
G2 D2
D2
D1 D1
CN17
EXT-USB
1
2
3
4
5
6
7
8
CN22
CRT CON.
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1
CP45
22p
CP44
22p
C166
470p
CN28
USB-CON
1
2
3
4
5
6
7
8
GND3
GND4
GND1
GND2
VCC
1DATA-
1DATA+
GND
VCC
2DATA-
2DATA+
GND
GND3
GND4
GND1
GND2
R236 0_r(0603)
CP46
22p
L29 SJ-201209-0600B-N3 600_08051 2
CA159
0.1u
Q53
A03401
D
G
S
R237 0_r(0603)
R238 0_r(0603)
R215
4.7K
C167
470p
C159
470p
CN16
USB-TOUCH PANEL
1
2
3
4
R205 0
R206 0
R214 2.4K_1%
L17 0
R607
1K
R604
6.19K_1%
Q52
2N3904
B
E
C
BOUT[7]
ROUT[7]
VSYNC[7]
HSYNC[7]
GOUT[7]
+1.5V [5,7,11,14,15,22,28]
OC4# [15]
OC3# [15]
+5V [4,11,12,14,16,17,19,21,22,23,24,25,26,27,28]
+12V [12,16,17,22,24,25,26,27,28]
SB5V [3,12,14,22,26,28]
OC5# [15]
OC1# [15]
DDCDATA [7]
DDCCLK [7]
EN[26]
USB4+ [15]
USB4- [15]
USB3- [15]
USB3+ [15]
USB1+ [15]
USB1- [15]
USB5+ [15]
USB5- [15]
USB7+ [15]
USB7- [15]
A3
PINGND1~2=GND
NEAR EXT-USB CONNECTOR
close to GMCH
close to con.
PIN(9,10)=GND
PIN(5,6)=GND