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4.14.1 Checking Main Clock part
Checking Points
Figure 4-16-1. WI-FI/BT Clock part
TCXO LDO
TP1
CLK_REQ
R404
100K
TP1 (CLK_REQ)
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Only for training and service purposes
TP2(26MHz)
C483
TP1 (CLK_REQ)
R404
VBAT
U402
4
1
VDD
VOUT
3
2
CE
GND
C418
1u
Figure 4-16. WI-FI/BT Clock Circuit
4. TROUBLE SHOOTING
Checking Flow
START
(TP1,2) is OK ?
Yes
Check Module Part
VDD_TCXO
XTALP
C417
1u
TP2 (26MHz)
- 101 -
4. TROUBLE SHOOTING
No
Check
TCXO
WiFi TCXO
VDD_TCXO
X401
TP2
VCC
GND
4
OUT
NC
3
26MHz
TG-5010LH-87N
C419
1u
LGE Internal Use Only
2
1
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