4. TROUBLE SHOOTING
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4.14 Indicator LED Trouble
Test Points
Circuit Diagram
Checking Flow
R209
R204
R206
R202
Q201
R208
R207
R201
RED LED
GREEN LED
47K
R209
3
1
4
UMX1NTN
Q201
2
5
6
R204
0
R202
0
10K
R206
R205 NA
R201
0
47K
R207
R208
47K
RLED
GLED
RED_LED
IND_LEDG
CN201
START
No
Repl ace Q201, and try again.
BACKL IGHT WILL
WORK PROPERLY.
Are both LEDs not
working?
No
Check the sol deri ng or repl ace LE Ds not working.
Yes
Yes
Check the V BAT of U102.
VBAT of U102 is 3.6~4.2V?
Figure 4-26
Summary of Contents for C1150
Page 1: ...Service Manual Model C1150 Service Manual C1150 Date October 2005 Issue 1 0 ...
Page 3: ......
Page 99: ...Note 100 ...
Page 104: ... 105 8 PCB LAYOUT 8 PCB LAYOUT ...
Page 105: ... 106 8 PCB LAYOUT ...
Page 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 117: ...Note 118 ...
Page 119: ... 120 Note ...
Page 135: ...Note 136 ...