TCL PIXI 5-10 4G VF - Page 30

L2E Repair Document TCL Communication Ltd.
Rev.
VF1300 Level 2E Repair Document
Page
1.0
30/39
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Note: Please always refer to Forlog system for the latest spare part list.
NO.
Position on PCBA
DESCRIPTION
Related Issue
1
U0101
Baseband Chipset,VFBGA,641
Balls,12.6×12.6×0.9 mm
Power on issue
2
U0501
PMU Chipset,VFBGA 206L,6.6×6.6×1.0
mm
Power on issue
3
U0701
Memory,LPDDR3 SDRAM,16 Gb,178-
Ball FBGA,11×11.5×0.78 mm
Power on issue
4
U0702
Memory,e-MMC Module,16 GB,P-
WFBGA153-1113-0.50,11.5×13×0.8
mm
Power on issue
5
X0501
Crystal,32.768 KHz,±20 ppm,12.5
pF,3.2×1.5×0.8 mm
Mobile signal issue
6
X1402
Crystal,26 MHz,±10 ppm,7.8
pF,2.5×2×1 mm
Mobile signal issue
7
U0801
LED Driver,2.92×2.8×0.8 mm,TSOT-
23-6,PWM Dimming,38V Step-Up
LCD backlight issue
8
L0501
Power Inductor,0.33
uH,±20 %,DCR=0.022 ohm
Power on issue
9
L0502,L0503,L0504
Power Inductor,0.47
uH,±20 %,DCR=0.029 ohm
Power on issue
10
L0602
Power Inductor,1
uH,±20 %,DCR=0.045 ohm
Charge issue
11
L0801
Power Inductor,4.7
uH,±20 %,DCR=0.095 ohm
LCD backlight issue
12
L0802
Power Inductor,4.7
uH,±20 %,DCR=0.14 ohm
Charge issue
13
U1302
Ultra-Low Noise Amplifier,1.1×0.9×0.45
mm,DFN-6L
Mobile signal issue
14
U1301
4-in-1 connectivity chip,Wi-
Fi/BT/FM/GPS,40-Pin QFN,5×5×0.85
mm
Wi-Fi/BT/FM/GPS issue
15
U1001
Triaxial Accelerate Sensor,2×2×0.95
mm,12-Pin LGA
G-Sensor issue
16
CR1111,CR1112,CR1113
Transient Voltage Suppressors,15 pF,5
V,SOD882,Bi-Directional
Side key not working
17
CR1205
Cannot switch to
headset mode
18
CR1206,CR1207
Headset audio issue
19
CR1208
Headset microphone
issue
20
CR1250,CR1251,
Speaker audio issue
21
VR1140
USB not recognized
22
CR1209
ESD protection diode,0.85 pF,5.5
V,SOD882,Bi-Directional
No FM radio when plug
in headset
23
VR1142,VR1143
USB data transfer NG
24
D1140
Transient Voltage Suppressors,300
pF,12 V,SOD-123FL,Bi-Directional
Charge issue