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START
Insert the earphone to the phone.
Set the audio part of the test
equipment to echo mode.
Does the audio
profile of the phone change to
the earphone
mode?
Can you hear your vioce from
the earphone?
EARPHONE WILL
WORK PROPERLY.
Change Earphone.
Can you hear
your voice from
the earphone?
Can you hear the sound from
voltage at C139=~1.2V
Check soldering
C139,R141,J102
Replace
main board
Re-solder
C139,R141,J102
Download S/W
Earphone receiving path
problem
Earphone sending path
problem
Change the earphone
and try again.
Set the audio part of the test
equipment to PRBS or
continuous wave mode.
Earphone detect problem
Audio path problem
4
3
3
2
1
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
4. Trouble Shooting
Checking Flow
Earphone receiving path problem
Содержание C1100
Страница 1: ...Service Manual Model C1100 Service Manual C1100 P N MMBD0034301 Date June 2004 Issue 1 0 ...
Страница 84: ... 83 5 DISASSEMBLY INSTRUCTION Figure 5 3 ...
Страница 85: ... 84 Figure 5 4 5 DISASSEMBLY INSTRUCTION ...
Страница 86: ... 85 5 DISASSEMBLY INSTRUCTION Figure 5 5 Figure 5 6 ...
Страница 87: ... 86 5 DISASSEMBLY INSTRUCTION Figure 5 7 Figure 5 8 3 1 1 2 ...
Страница 88: ... 87 Figure 5 9 5 DISASSEMBLY INSTRUCTION ...
Страница 89: ...5 DISASSEMBLY INSTRUCTION 88 Figure 5 10 Figure 5 11 ...
Страница 90: ...5 DISASSEMBLY INSTRUCTION 89 Figure 5 12 3 2 1 ...
Страница 106: ... 105 9 PCB LAYOUT 9 PCB LAYOUT ...
Страница 107: ... 106 9 PCB LAYOUT ...
Страница 114: ... 113 Figure 11 1 HW test program Figure 11 1 HW test program 11 STAND ALONE TEST ...
Страница 118: ... 117 13 EXPLODED VIEW REPLACEMENT PART LIST 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 EXPLODED VIEW ...
Страница 119: ... 118 Note ...