LG -P895 Service Manual page 64

4.7.1 Checking Crystal Circuit
Enter test mode *#*#895#*#* -> NFC Test -> Press OK to Start ->
Generate Contiunous Emission -> Check pop up "Test success" : CE Test Start
TP1 (Point:
27.12MHz)
X10000
IFSEL1
F3
TEST7
F2
AVDD_OUT
F1
XTAL2
E8
VEN_MON
E7
SIGIN
E6
RFU2
E5
TEST5
E4
IF0
E3
GPIO0
E2
AVSS1
E1
XTAL1
TP1 (Point:
27.12MHz)
LGE Internal Use Only
+1V8_TPS_VIO
C10008 1u
27.12MHZ
FLOAT2 IN/OUT2
4 3
IN/OUT1 FLOAT1
1 2
XRCGB27M120F3M10R0
X10000
C10027 C10028
10p 10p
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4. TROUBLE SHOOTING
27.12 MHz OK?
Yes
Crystal is OK.
See next page to check TX
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
No
Replace X10000