3. TECHNICAL BRIEF
- 45 -
3.13 LCD Back-light Illumination
LCD backlight LEDs is controlled by DBB via AAT2807, U402.
WHITE/FLASH LED LDO
C417
1u
1u
C413
1u
C406
NC
PGND
17
4
VIN
VOUT_BL
13
VOUT_FL
3
C1+
11
12
C1-
14
C2+
C2-
15
2
C3+
C3-
1
16
EN_FLSH
EN_SET
10
9
GND
ISINK1
5
ISINK2
6
7
ISINK3
8
AAT2807AIXN-4.5
U402
FB403
7.5K
R413
NA
R414
2V8_VEXT
R409
22
FB400
C404
1u
1u
C410
VBAT
R411
NA
1.5K
R410
1u
C409
MLED1
MLED2
MLED3
FLASH_LED
LCD_DIM_CTL
C_FLASH
MLED
Figure 3-31. MAIN LCD BACKLIGHT ILLUMINATION
Содержание C2100
Страница 1: ...Service Manual Model C2100 Service Manual C2100 P N MMBD0048201 Date April 2005 Issue 1 0 ...
Страница 54: ...4 TROUBLE SHOOTING 55 4 2 TX Trouble SW500 U503 X500 FL500 U501 U505 5 4 1 3 2 Test Points Figure 4 7 ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 7 MIC Trouble Soldering Check U203 C225 C224 C230 Test Points Figure 4 18 ...
Страница 76: ...4 TROUBLE SHOOTING 77 4 10 KEY backlight Trouble Test Points Figure 4 21 ...
Страница 104: ... 105 8 PCB LAYOUT ...
Страница 105: ... 106 8 PCB LAYOUT ...
Страница 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 117: ...Note 118 ...
Страница 119: ......
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