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4. Trouble Shooting
4
3
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Earphone sending
path problem
Voltage at A point
= 1.5~1.9 VDC ?
Is the signal level
across C166&7a few tens
or hundreds
VAC ?
Does it work well?
Redownload software.
Does it work well?
Change the main board.
Resolder C166&7.
Resolder R181.
Resolder
R153, R159.
Voltage at R150
= 2.8V ?
Voltage at Pin1 of
U104 = 2.8V ?
Resolder R150.
Resolder R145, R147, R144
Earphone detect
problem
Voltage at Pin 3
of U104> Voltage at Pin 4
of U104?
Resolder or replace U104.
5
5
1
4
Yes
Yes
Yes
No
No
No
Earphone detect problem
Earphone sending 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 ...