5. Trouble shooting
START
Check the Dome switch contacts are clear
Check the voltage | No | Resolder or Replace |
of TP1~4. |
| |
| U400 | |
Volta ge is 2.6V? |
| |
|
| |
Yes |
|
|
Check soldering | No | Resolder the |
of components of |
| component |
U400 |
|
|
Assemble |
|
|
TP2
TP1
TP3 
TP4
Domeswitch
|
| Fig 6 Waveform of DCXO |
Copyright © 2008 LG Electronics. Inc. All right reserved. | - 91 - | LGE Internal Use Only |
Only for training and service purposes |
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