4. TROUBLE SHOOTING
- 94 -
4.10 Earphone Trouble
C208
C206
HEADSET JACK
2
1
6
H
INSERT
REMOVE
3
JACK_DETECT
L
5
4
33u
C208
1K
R200
39p
C210
39p
C212
0.1u
C200
2V8_VEXT
100
R207
20K
R201
4.7
22u
R208
C203
C206
EVL5M02200
VA201
33u
2V8_VEXT
C201
0.1u
EVL5M02200
VA200
R210
330K
R205
1M
0
R206
0.1u
C202
R204
20K
1K
R203
R211
1M
2V5_JACK
OUT
5
VCC
3
VIN+
VIN-
4
U201
2
GND
1
NA
C204
2V8_VEXT
1.5K
R202
C207
39p
EVL5M02200
VA202
0.1u
C205
GND
1
NC
4
VOUT
3
2
Vin
NCP563Q25T1
U200
0
R209
C209
C211
39p
J200
NA
HOOK_DETECT
2V5_JACK
AUXIN
EAR_SPK_L
JACK_DETECT
EAR_SPK_R
AUXIP
Test Points
Circuit Diagram
Z3X-BOX.COM
Summary of Contents for MG300d
Page 23: ...3 TECHNICAL BRIEF 24 Figure 3 1 SKY74400 FUNCTIONAL BLOCK DIAGRAM Z 3 X B O X C O M ...
Page 83: ...4 TROUBLE SHOOTING 84 4 6 LCD Trouble EMI FILTER CN600 Test Points Z 3 X B O X C O M ...
Page 110: ...5 DOWNLOAD AND CALIBRATION 111 8 Push the START button Z 3 X B O X C O M ...
Page 111: ...5 DOWNLOAD AND CALIBRATION 112 9 Phone test Finish is shown in below screen Z 3 X B O X C O M ...
Page 112: ...6 BLOCK DIAGRAM 113 6 BLOCK DIAGRAM Z 3 X B O X C O M ...
Page 113: ... 114 Z 3 X B O X C O M ...
Page 124: ... 125 MG300d 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 125: ... 126 MG300d 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 137: ... 138 Z 3 X B O X C O M ...
Page 138: ... 139 Z 3 X B O X C O M ...
Page 140: ... 141 12 EXPLODED VIEW REPLACEMENT PART LIST Z 3 X B O X C O M ...
Page 141: ... 142 Z 3 X B O X C O M ...