3.11.6 Folder ON/OFF Operation
There is a magnet to detect the Folder status, opened or closed.
If a magnet is close to the hall-effect switch, the voltage at pin1 of U504 goes to 0V. Otherwise, 2.6V.
This folder signal is delivered to MSM6275 GPIO43.
3.11.7 Keypad Light
There are 16 White LEDs in Main board backlight circuit, which are driven by KYBD_BACKLIGHT line
from PM6650.
3. TECHNICAL BRIEF
- 56 -
Figure. Schematic of Folder ON/OFF detection circuit
(For Hall Sensor)
0.01u
C489
VREG_MSMP_2.7V
R504
100K
62
R402
0.1uF
C410
3
GND1
GND2
4
2
NC1
5
NC2
1
OUTPUT
7
PGND
6
VDD
U504
A3212EEH-T
FOLDER_DETECT
Figure. Keypad Backlight Circuit
KEY_BACK_LIGHT
LD525
LD523
R451
100
LD527
R457
100
R1045
100
LD507
R452
100
R1044
100
100
R466
100
R465
LD510
100
R469
100
R467
R458
100
R456
100
LD511
LD514
100
R472
100
R495
LD506
VA515
EVL14K02200
LD515
R459
100
LD513
100
R468
100
R471
LD509
LD526
LD524
LD522
LD521
LD520
KYBD_BACKLIGHT
+VPWR
Содержание CU500 - Cell Phone
Страница 1: ...Date June 2006 Issue 1 0 Service Manual Model CU500_TU500 Service Manual CU500_TU500 ...
Страница 3: ... 4 ...
Страница 41: ...3 TECHNICAL BRIEF 42 Figure PM6650 Functional Block Diagram ...
Страница 68: ...4 TROUBLE SHOOTING 69 4 1 RF Component Bottom Side 4 TROUBLE SHOOTING ...
Страница 69: ...4 TROUBLE SHOOTING 70 ...
Страница 73: ...4 TROUBLE SHOOTING 74 Check R400 of PMIC U400 Check R223 of MSM U200 ...
Страница 77: ...4 TROUBLE SHOOTING 78 For testing Max power of UMTS 1900MHz is needed ...
Страница 85: ...4 TROUBLE SHOOTING 86 ...
Страница 87: ...4 TROUBLE SHOOTING 88 ...
Страница 91: ...4 TROUBLE SHOOTING 92 ...
Страница 93: ...4 TROUBLE SHOOTING 94 D701 VREG_MSMC VREG_MSME VREG_MSMA VREG_MSMP VREG_TCXO C1133 48Mhz X400 32 768Mhz ...
Страница 95: ...4 TROUBLE SHOOTING 96 R300 Q401 Q400 ...
Страница 98: ...4 TROUBLE SHOOTING 99 Q501 X 200 U505 ...
Страница 105: ...4 TROUBLE SHOOTING 106 CN602 CN1 ...
Страница 107: ...4 TROUBLE SHOOTING 108 C102 C104 R200 R201 ...
Страница 109: ...4 TROUBLE SHOOTING 110 CN602 SPK_LP L N SPK_RP RN AMP block ...
Страница 111: ...4 TROUBLE SHOOTING 112 MIC U303 ...
Страница 113: ...4 TROUBLE SHOOTING 114 Mic input 5 4 2 1 3 6 Headset detect port ...
Страница 129: ...5 DOWNLOAD 130 3 NV Restore error When you meet the NV Restore error ...
Страница 130: ...5 DOWNLOAD 131 Connect to the phone Click on Cancel ...
Страница 135: ...Table 6 1 1 RF Block Component 6 BLOCK DIAGRAM 136 ...
Страница 138: ...6 BLOCK DIAGRAM 139 Top Side ...
Страница 139: ...6 BLOCK DIAGRAM 140 Bottom Side ...
Страница 147: ... 148 8 pcb layout ...
Страница 148: ... 149 8 pcb layout ...
Страница 149: ... 150 8 pcb layout ...
Страница 150: ... 151 8 pcb layout ...
Страница 151: ... 152 ...
Страница 157: ...9 CALIBRATION 158 9 3 HOT KIMCHI Example Choose Exe_Cu500Ag_100 ...
Страница 158: ...9 CALIBRATION 159 Click APPLY button Click START button ...
Страница 161: ... 162 ...
Страница 185: ...Note ...
Страница 186: ...Note ...