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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Check T P1
VCC of VCXO
VCC 2.8V
Check T P2
T RK_LO_ADJ
3V Voltage 0V
Check T P3, T P4
With Oscilloscope
19.2MHz Signal
VCXO is OK
Check other par t
Check PMIC
Check MSM
Check solder ing
and components
Yes
Yes
Yes
No
No
No
[Fig. 4.11] TCXO output waveform(19.2MHz)
Z3X-BOX.COM
Содержание HB620
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Страница 203: ...Note Z 3 X B O X C O M ...