LG L705ix Service Manual page 80

0.1u
63
REF_BYP
62
REF_GND
61 121K
REF_ISET
60
VCOIN
59 TP300
MSM_INT_N
58
TCXO_IN
57
PS_HOLD
56
VREG_MSMA
55
TCXO_EN
54
VDD_ANA
53
TCXO_OUT
52
VDD_MSM
51
SBST
50
VREG_MSMP
49
SBCK
48
VBACKUP
47
SBDT
46
XTAL_OUT
45
SLEEP_CLK
44
XTAL_IN
43
RUIM_RST(MPP6)
2520
4.7uH
L304
VREG_MSMC(C330)
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C318
1u C319
R302
V_BACK_UP
PM_INT_N
R305 : 19.2MHz
TCXO_PM
TCXO_EN
0603
+VPWR
47 R305
BUFF_TCXO_MSM
0603
+VPWR
47K R306
47K R308
0603
CM315_12_5PF
SSBDT_PM
SLEEP_CLK
USIM_P_RST_N
C326 C327
Artwork --> Place crystal and load caps close to PM6650 !!
22p 22p
Rev.1.3 for RTC
2016
4.7uH
L305
VREG_MSME(C331)
- 81 -
4. TROUBLE SHOOTING
0603
R303
DNI
JTAG_PS_HOLD
RB521S-30
EDSY0011901
PS_HOLD
D301
D301 : PS_HOLD
VREG_MSMA(C323)
R307
0
C324
4.7u
EXXY0024301
32.768KHz
X300
X300 : 32.768Khz
VREG_TCXO(C300)
1
ADC_BYP
2
VCHG
VREG_MSMA_2.6V
VREG_MSMP_2.7V
VREG_MSMP(C324)
LGE Internal Use Only