4. TROUBLE SHOOTING
- 84 -
KEY BACKLIGHT
1u
C762
C759
330
R778
1u
330
R719
LEBB-S14H
LD701
R709
330
1u
C766
1u
10
R735
C760
R715
330
C763
1u
R777
330
330
R712
C757
1u
330
R708
10
R734
R711
330
R707
330
1u
C756
1u
C754
LEBB-S14H
LD708
LD706
LEBB-S14H
4
LD700
LEBB-S14H
2
5
6
3
1
IMX9T110
Q700
C724
27p
VBAT
LEBB-S14H
LD707
330
R717
C761
1u
1u
C755
LEBB-S14H
LD710
1u
C753
VBAT
LEBB-S14H
LD705
12K
R732
LD702
LEBB-S14H
R718
330
LD711
LEBB-S14H
C765
1u
LD712
LEBB-S14H
1u
C758
10
R731
12K
R728
LEBB-S14H
LD703
LD704
LEBB-S14H
10
R730
330
R716
27p
C725
C764
LD709
LEBB-S14H
1u
330
R710
LEBB-S14H
LD713
R720
330
KEY_BACKLIGHT
CIRCUIT
START
Is the level at R729
High?
NO
Check U101
YES
Are all LEDs
Working?
NO
YES
Check the soldering
each R and LED
Backlight will work properly.
NO
Replace or resoldering
component
Checking Flow
Summary of Contents for S5000
Page 1: ...Date November 2005 Issue 1 0 Service Manual S5000 Service Manual Model S5000 ...
Page 3: ... 4 ...
Page 82: ...4 TROUBLE SHOOTING 83 4 12 KEY backlight Trouble Test Points Figure 4 21 ...
Page 101: ...5 DOWNLOAD AND CALIBRATION 102 9 Phone test Finish is shown in below screen ...
Page 103: ... 104 ...
Page 111: ... 112 8 PCB LAYOUT ...
Page 112: ... 113 8 PCB LAYOUT ...
Page 113: ... 114 ...
Page 121: ...10 STAND ALONE TEST 122 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 125: ... 126 ...
Page 126: ... 127 ...
Page 128: ... 129 12 EXPLODED VIEW REPLACEMENT PART LIST ...
Page 129: ... 130 ...