4. TROUBLE SHOOTING
- 100 -
4.13 RTC Trouble
VUSB
NA
C129
R110
10M
R114
330K
X100
MC-146_7pF
1
2
3
4
32.768KHz
R111
24K
NAUXCS1
V6
V3
NRESET
OSCIN
E9
C9
OSCOUT
PWRON
F9
GPIO_5
J16
J18
GPIO_6
GPIO_7
H16
J14
GPIO_8
H18
GPIO_9
K16
GPIO_2_NIRDA_EN
GPIO_3
K18
K14
GPIO_4
GPIO_42_NMAIN_LCD_CS
N9
GPIO_43_NSUB_LCD_CS
V7
GPIO_10
G16
GPIO_11
J13
G18
GPIO_12
H14
GPIO_1_IRDA_RX
L14
GPIO_0_IRDA_TX
L18
CLKIN
N10
CLKON
P13
C135
NA
1000p
C134
USB_DET
PWRON
OLED_ON
CHG_STAT
CHG_EN
BT_EN
JACK_DETECT
FLIP
CLKON
VIBRATOR
_MIDI_RST
DSR
_BT_RST
SPK_RCV_SEL
_SUB_CS
_LCD_CS
_RESET
_MIDI_CS
AMP_SD
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 ...