4. DOWNLOAD
- 38 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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4. Trouble Shooting
3.2.1.2 Checking MT6166 XO circuit
Test Point
TP1 : R1510
(MAIN CLK 26MHz)
(
_
_
)
MT6166
(U1500)
Circuit Diagram
TP1
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3.2.1.2 Checking MT6166 XO circuit
100K
TOL=0.01
R1510
2
1
RT1
XT2
XT1
RT2
X1500
OZ26000004
26M
2
1
3
4
DET
XTAL1
XTAL2
RCAL
TST1
TST2
GND15 GND16 GND17
3GB8_RXP
3GB8_RXN
B40_RXP
B40_RXN
RFVCO_MON
G2
B1
A1
B6
C2
B10
B7
K11
L10
J10
H2
J1
D11
TOL=0.01
R1514
2K
PDET_IN
3G_RX_B5_P
3G_RX_B5_N
Route VREF_BAT_THERM with 4mil trace width
Route AUXADC_GND with 24mil trace width
under VREF_BAT_THERM / AUXADC_TSX trace
Route AUXADC_TSX with 4mil trace width
GPS co-CLK Crystal
Exchange Rx Pin(B5<->B8)
for layout
C1507
1
2
1u
TP1