LG VX11000 - Page 96

- 95/143-
LG Electronics Inc.
VX11000
Checking Flow
Checking Flow
START
Check battery voltage > 3.4V
Check the voltage of
the following port at U4001
Charge of Change Battery and try again
NO
NO
YES
YES
NO
+1.0~1.4V_MSMC1
+1.15V~+1.4V_MSMP1
+1.8V_MSME
+2.6V_MSMP
+2.6V_MSMA
+2.85V_TCXO
Is the frequency of TCXO_IN
(C4114) 19.2Mhz?
Replace TCXO (U1003)
Check the +BATT voltage > 3.4V
NO
YES
Confirm +VBATT Line
Replace PMIC (U4001)
YES
NO
Is TCXO_OUT (C4136)
19.2Mhz, Pk-Pk 2.85V?
Replace TCXO BUFFER (U4006)
YES
A
YES
Is SLEEP_CLK (C4042)
32.76Khz, Pk-Pk 2.6V?
NO
Replace Sleep Crystal (U4000)