ASUS Z300CG Trouble Shooting Guide
ASUS
Z300C / CG
Trouble Shooting Guide
• Device Overview
• Block Diagram
• Power Tree
• Issues
– Power Rail
– LCM / Touch Panel
– Camera
– USB
– Sensor
– Audio
Table of Contents
– SIM (Z300CG only)
– SD
– EMMC
– Charger
– Gauge
• Appendix
Device Overview
(1)
Ambient Light Sensor
Front Camera
Volume Up Volume Down
Power Key
Speaker Battery Pack
Rear CAM
SD Card
SIM Card
Docking
LCM FFC
Vol Up
(SW2802)
Vol Down
(SW2803)
AMIC
(U1406)
PWR Button
(SW2801)
Device Overview
G-Sensor / E-Compass
(U2101)
ALS
(U2102)
Front CAM
(CON2002)
Phone Jack
(J1401)
LPDDR3
(U1901)
SoC
(U501)
(2)
Hall Sensor
Cadiz
(U1801)
(U2103)
LCM
(CON1801)
Gauge
(PU9601)
Battery
(CON9601)
Charger
(PU8101)
Micro USB
(CON3201)
SD Card
(CON3001)
SIM Card
(CON3101)
(TOP Side)
Docking
(CON3202)
A-Gold 620
(U1101)
Rear CAM
(CON2001)
eMMC
(U1701)
Speaker
(CON2501 / CON2502)
(BOT Side)
SDMMC_CLK
SDMMC_CMD
DI3_TX_DATX
DI3_RX_DATX
DOCK_NOTICE
MAIN_CAM_MIPI
DOCK_ADC
SDMMC_D0/1/2/3
EXTERNAL
SD SOCKET
SUB_CAM_MIPI
ALS
Hall Sensor
EMMC_DATA
Accelerometer
& E-Compass
USB_DN/P_CON
MIPI _CLK
I2C2
ALC105-VF-CGT
SMB347ET-2039Y
BQ27320-G1
USB2_DN/P_CONN
LPDDR3
XTAL
32.768KHz
Antenna
LCD Panel
SoFIA 3G-R
Rear Camera
2M FF/5M AF
AGOLD 620
MDSI_C_DATA_DP/DN
Gauge
Charger
Antenna
XTAL
26MHz
Front Camera
0.3M FF/2M FF
CADIZ_PWM_OUT
Debug Conn
RF Tx/Rx
GNSS
EMMC_CLK
BT/WIFI
Audio
eMMC
EMMC_RST#
Battery
EMMC_CMD
P_BAT_SRN/SRP
VBAT
Left Channel SPK
Right Channel SPK
I2C5
BT/WIFI
GPS
Antenna
3G Main
AMIC_IN_N
USB_DN/P_DOCK_R
I2C3
I2C4_TP
TDO
TDI
TCK
TMS
Power Button
DDR3_DM
TRST_N
LP8557IAYFQR
BL Driver
JTAG_RTCK
USB Conn
Switch
HPA02208YZPR
USB Switch
Amplifier
DI3_TX_DAT
AZAW2212F.R7G
PMB9102
DI3_RX_DAT
PMU_CTRL
XG_CLK32K_IN
WUP_DBB
AMIC
HP_SPK_OUT_R
HP_SPK_OUT_L
CHG_VBATT_5
V_LED
CAFLAG
CADATA
MICP2
CAREADY
ACDATA
ACFLAG
ACREADY
UART_DEBUG_TXD_SW
UART_DEBUG_RXD_SW
USB_VBUS
MDSI_C_CLK_DP/DN
Sim1_RST
Sensors
I2C1
MIPI _DATA
Volume Up & Down
Micro Sim1
PMB8018
SIM1_CLK
SIM1_I O
SIM1_DET
DOCK Conn
VDD_CPU
NCP6336B
CADIZ
FPC
MIPI _TX_D0/1/2/3P/N/DN
MIPI _TX_CLKP/N
AMIC_IN_P
CXD4756GF
DDR3_CA
Headphone
Jack
DCIN_VBUS
VLED_Isink
DDR3_CK_P/N
DDR3_CKE
DDR3_DQ
DDR3_DQS_P/N
Switch
HPA02208YZPR
Z300CG Only
Block Diagram
Z300CG Only
Power Tree
[CON2501]
Speaker L (25)
+ / -
[CON2502]
Speaker R (25)
+ / -
1.0V / 5000mA
VDD_CPU_1V0
RF PMIC_2/5 (11)
Intel A-GOLD 620 (PMB9102)
VDD_PMU_SD1
VDD_PMU_SD2
SD1FB
SD2FB
VDD_CORE
RF PMIC_3/5 (11)
Intel A-GOLD 620 (PMB9102)
VDD_PMU_1V8
VDD_PMU_1V8CP VDD_PMU_CP_OUT
VAIF
VDD_IO18
RF PMIC_1/5 (11)
Intel A-GOLD 620 (PMB9102)
VDD_PMU_BAT_AUX
VDD_PMU_AUX1
VAUX1
VDD_PMU_BAT_MAIN
EN
[PU8601] PW CPU (86)
ONSEMI NCP6336BFCCT1G
SW
EN
[PU8602] PW GPU (86)
UPI UP1727PDDA
LX
VDD_GPU_1V0
RF PMIC_4/5 (72)
Intel A-GOLD 620 (PMB9102)
VDD_GNSS_1V8
VDD_GNSS_BAT
VDD_WLAN_BAT
VDD_WLAN_1V8
VDD_BT_1V8DIG
VDD_BT_1V8RF
RF_WLAN_1V8
RF_GNSS_1V8
RF_BT_1V8_RF
RF_BT_1V8_DIG
VDD_3GRF_TXFBR_1V8
RF_1V8
VDD_3GRF_TXDCO_1V8
VDD_3GRF_TXLO_1V8
VDD_3GRF_SCU_1V8
VDD_3GRF_TXPLL_1V8
VDD_3GRF_RXRF_1V8
VDD_3GRF_RDBB_1V8
VDD_3GRF_RXMS_1V8
VDD_3GRF_RXLO_1V8
VDD_3GRF_RXPLL_1V8
VDD_3GRF_BAT
VDD_3GRF_TXRF_BAT
VSYS_RF
VDD_3GRF_D2B_2V5
RF PMIC_5/5 (75)
Intel A-GOLD 620 (PMB9102)
VSYS_GNSS
VSYS_WLAN
VDD_3GRF_RDRF_2V5
VDD_3GRF_RXDCO_2V5
VDD_3GRF_RXRF_2V5
VDD_3GRF_FSYS_2V5
VDD_3GRF_TXDCO_2V5
VPMU
VMMC1
VUSB
VDD_PMU_PMU
VDD_PMU_RTC
VDD_PMU_MMC1
VDD_PMU_AUX2
VDD_PMU_SIM1
VDD_PMU_USB
VDD_PMU_MEM
VDD_PMU_AIF
VDD_PMU_PLL
VDD_PMU_MIPI
VMEM
VMIPI
VPLL
VCABB
VDD_PMU_CABB
VDD_CORE
VDD_IO_1V8
SoC_1/5 (5)
Intel SoFIA (PMB8018)
VDD_LVDS_1V8
VDD_USIF2
VDD_SDMMC
VDD_MIPI
VDD_USB_1V1
SoC_2/5 (6)
Intel SoFIA (PMB8018)
VDD_USB_3V3
VDD_IDI_1V1
VDD_PLL
VDD_SIM1
VDD_DIGRF
VDD_CPU
SoC_4/5 (8)
Intel SoFIA (PMB8018)
VDD_GPU
VDD_CORE
SoC_3/5 (7)
Intel SoFIA (PMB8018)
VDD_Nand
DDR_VREF_ZQ
DDR_VREF
CA / DQ / RETENTION
VDD_DDR_PLL
VDD_DDR_CORE
VMMC1
VAIF
VPLL
VUSB
VSIM1
VREF_DDR
VDD_DDR
VDD_DDR_CORE
VDD_DDR_PLL
VDD_DDR
CA / DQ / RETENTION
[PU8802] PW DDR_CORE (88)
RICOH RP114K111D-TR
CE
LX
VDD_DDR_CORE
[PU8803] PW DDR_PLL (88)
UPI UP0108JDS4-18
EN
VOUT
VDD_DDR_PLL
VMEM
VMEM
[PU8301] LDO SD (83)
RICOH RP115L301D-E2
VOUT
[PU8302] LDO EMMC (83)
RICOH RP115L301D-E2
CE
VOUT
[U1701] eMMC (17)
Hynix H26M64003DQR
VCC
VCCQ
VCC_EMMC
V_EMMC_VCCQ
VDD
VDD
VIN
VDD
AVIN
VIN
[PU8901] LED Driver IC (89)
TI LP8557IAYFQR
SW VDD
[U2001] LDO Camera 2P8 (20)
RICOH RP103K281D-TRB
VOUT1 VDD
VCM_2P8_5M
CE
LX
[U2002] LDO Camera 1P2 (20)
RICOH RP114K121D-TRB
VIN
[U2502] PW Speaker Amp (25)
REALTEK ALC105-VF-CG
OUT-R
PVDD
SPK_R_P/N
OUT-L
SPK_L_P/N
[CON1801]
LCM Con_42P (18)
Pin 18
Pin 19
Pin 1
Pin 2
Pin 3
V_TP_1P8
V_VSYS_LCDTP
[U7309] RF Regulator / LDO (73)
SKYWORKS SKY87000-13-001
INL
LX INS
MODE
[U7307] RF Power Amp (73)
SKYWORKS SKY77769
VBATT
VCC
[U7303] RF Front-End (73)
SKYWORKS SKY77592-21
VBATT
VCC
VDD
[U7308] RF SW (73)
SKYWORKS SKY13489-001
[U7502] RF LDO (75)
RICOH RP114K281D5-T1
VDD
[U601] SoC Logic (6)
TI SN74AUP1G57YZPR
VCC
VSD_1V8
VSD_1V8
1.8V / 1200mA
1.0V / 1000mA
1.8V / 225mA
1.1V / 70mA
2.3V / 2mA
1.3V / 15mA
1.8V / 225mA
2.8V / 225mA
2.9V / 30mA
3.15V / 40mA
1.16V / 350mA
1.2V / 60mA
1.226V / 350mA
1.2V / 30mA
VOUT1 VDD
[U7504] SoC Logic (75)
RDA RDALN16
GNSS_LNA_LDO
[CON2001]
Rear Cam Con_31P (20)
Pin 28
Pin 2
Pin 29
[PU8101] Charger (81)
Qualcomm SMB347ET-2039Y
Pin 3
USBIN
--> VDD_1P8_CAM_REAR
DCIN
[CON2002]
Front Cam Con_25P (20)
Pin 2
Pin 3
--> VDD_1P8_CAM_FRONT
VDD
[U7310] RF SW (73)
SKYWORKS SKY13489-001
[PU9302] LDO LCM CDZ (93)
TI TLV73312PDQNR
OUT
V_CDZ_DVDD_1P2
IN
[PU9301] LDO LCM CDZ (93)
TI TLV71718PDQNR
OUTIN
V_CADIZ_DVDD_1P8
Pin 9
V_LCD_1P8
SPK_AMP_PVDD
Pin 13
[PU8804] PW DDR (88)
TI TLV62065DSGR
EN
VDD_DDR
SW
PVIN
AVIN
PVIN
POK
IN1
VDD_DIF
SoC_5/5 (10)
Intel SoFIA (PMB8018)
[U1901] LPDDR3 (19)
Hynix H9CCNNNBJTMLAR-NUM
VDD1
VDD2
VDDCA
VDDQ
[U2101] G + E-Compass (21)
BOSCH BMC156
VDDIO
VDD
PS
CSB
VDD
[U2102] ALS (21)
LITE-ON AL3320A
VDD
[U2103] Hall Sensor (21)
YOBON YB8251ST23
[CON3001]
SD Card (30)
Pin 4
[CON3101]
SIM Card (31)
Pin C1
VDD
[U3101] USB SW (32)
AMAZING AZAW2212F
[U1801] LCM CADIZ (18)
SONY CXD4756GF
DVDD12
AVDD12
DVDD18
--> V_CADIZ_AVDD_1P2
VDD
[U1802] OSC CADIZ (18)
HOSONIC 26MHz
V+
[U1401] Headset SW (14)
TI HPA02208YZPR
V+
[U1403] Headset SW (14)
TI HPA02208YZPR
CHGOUT
VBAT
CHG_VBATT_5
1.1V / 300mA
1.8V / 300mA
1.2V / 2000mA
1.0V / 3500mA
[CON3201]
USB Con (32)
VBUS
VSIM1
VAUX2
DVDD_1P2_5M
--> VDD_2P8_CAM_REAR
--> VDD_2P8_CAM_FRONT
[SW2801]
Power Button (28)
Pin 2
VRTC
V_3G
USB_VBUS
DCIN_VBUS
BAT
[PU9601] Gauge (96)
TI BQ27320-G1
REGIN
V_LED
VDD_SD
--> VCC_IO_3V3
VSYS
VDD_CORE
VMEM
VAIF
POWER
Power Rail Checklist
1. 檢查零件是否有歪斜、空焊或損毀
2. 檢查 Power Sequence 是否有跑完？
• XG_RESET_IN_N 電壓是否為 1.2V？
• XG_RESET_OUT_N 電壓是否為 1.8V？
3. 檢查以下電壓是否無輸出或者和 GND 短路？ (以不破壞PCBA為主)
• VBAT 大於 3.5V
• VSYS 約等於 VBAT
(1)
• VDD_CORE, VDD_CPU, VDD_GPU 1.0V
• VSD_1V8, VDD_DDR_PLL 1.8V
• VDD_DDR, VDD_DDR_CORE, VCABB, VPLL, VAIF, VMEM 1.2V
• VCC_EMMC 3.3V
• V_LED 16.2V – 18V
Power Rail Checklist
1.8V
1200mA
VSD_SW1
VSD_1V8_PMIC
12
R1102
0Ohm
r0805_h24
12
C1103
10UF6.3VX5RC3M
VDD_PMU_SD1
AA8
VSS_PMU_SD1
AA7
VSS_PMU_SD1_ISO
W9
SD1SW1
Y8
SD1FB
AA9
VDD_PMU_SD2
AA13
VSS_PMU_SD2
Y13
VSS_PMU_SD2_ISO
W11
SD2_SW1
AA14
SD2FB
Y11
U1101B
PMB9102
12
C1104
22UF/6.3V
VSD_1V8
VSYS
21
L1102 1UH
Irat=2.7A
4. 如果有 Power Rail 和 GND 短路(對地阻抗偏低)，先確認短路主因。
• Ex. 假設量測到 VSD_1V8 對地短路
– 可以斷開 R1102 量測兩端阻抗 確認是否為 PMIC 內部短路
5. 如果確認為 U1101 或 U501 內部短路…
(2)
• 照 X-Ray 檢查是否有短路或空焊
• 對 U1101 / U501 再度加熱
• 更換 U1101 / U501
LCM / TOUCH PANEL
LCM Issue Checklist
• Check CON1801及周邊零件是否有歪斜、空焊或損毀
• Check LCM FFC 及本體是否異常
• Panel
– Check V_VSYS_LCDTP (R1872.1) 是否為 3.3V
– Check V_LCD_1P8 (R1867.1) 是否為 1.8V
• Backlight
– Check V_LED (PSR8902.2) 是否為 16.2 ~ 18V (有無對地短路？)
– Check P_BL_SCL_5 (T8903) 和 P_BL_SDA_5 (T8904) 準位是否為 1.8V
• 確認準位後，再用示波器確認波形是否正確
– Check P_BL_PWM_5 (T8902) 在螢幕開啟後，電壓是否約為 0.7V
• 確認有電壓後，再用示波器確認 PWM 是否有正常輸出
1
T1802
/@
12
C1834
10P50VNPOC1J
1 2
GND VC
D1807
TVUFB0201AC0
@
1 2
GND VC
D1812
TVUFB0201AC0
@
1 2
GND VC
D1805
TVUFB0201AC0
@
1 2
GND VC
D1806
TVUFB0201AC0
@
12
R1869
1MR1J
1 2
GND VC
D1811
TVUFB0201AC0
@
1 2
GND VC
D1809
TVUFB0201AC0
@
SIDE1
43
SIDE2
44
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
CON1801
FPC_42P
12018-00350000
12
C1833
10P50VNPOC1J
1 2
GND VC
D1810
TVUFB0201AC0
@
1 2
GND VC
D1808
TVUFB0201AC0
@
1 2
GND VC
D1814
TVUFB0201AC0
@
1 2
GND VC
D1813
TVUFB0201AC0
@
V_VSYS_LCDTP
V_LED
V_LCD_1P8
V_TP_1P8
VLED_Isink289
LCM_EN5
VLED_Isink189
VLED_Isink489
VLED_Isink389
LCM_RST_N10
LCD_PWM_OUT89
LCM_ID110
LCM_ID010
Power_OK#13
MIPI_DSI0_D3N
TS_INT_N
MIPI_DSI0_D1N
MIPI_DSI0_D1P
MIPI_DSI0_D0N
MIPI_DSI0_D2N
MIPI_DSI0_D2P
MIPI_DSI0_D0P
MIPI_DSI0_CLKN
MIPI_DSI0_D3P
MIPI_DSI0_CLKP
I2C3_TP_SCL
I2C3_TP_SDA
TS_RST_OUT_N
Noise_In
1
T1801
/@
Cadiz Issue Checklist
• Check U1801及周邊零件是否有歪斜、空焊或損毀
• Check SCL_CAD (R1862.1) & SDA_CAD (R1865.1) 準位是否為 1.8V
– 確認準位後，再用示波器確認波形是否正確
• Check V_CADIZ_AVDD_1P2 (R1821.1) & V_CADIZ_DVDD_1P2 (R1822.2) 電壓是否為 1.2V，
如果沒有…
– Check PU9302 置件是否有歪斜、空焊或損毀
– Check PR9302.2 電壓是否為 1.8V
– Check PR9306.2 準位是否為 High (1.8V)
• Check V_CADIZ_DVDD_1P8 (PR9304.1) 電壓是否為 1.8V，如果沒有…
– Check PU9301 置件是否有歪斜、空焊或損毀
– Check PR9303.1 電壓是否等於 VSYS
– Check PR9305.2 準位是否為 High (1.8V)
• Check SYSCLK_CAD (R1845.2) 是否有量測到 19.2MHz，如果沒有…
– Check R1845, U1802 置件是否有歪斜、空焊或損毀
– Check V_CADIZ_DVDD_1P8 (C1801.1) 電壓是否為 1.8V
– Check CDZ_OSC_EN (R1873.1) 準位是否為 High (1.8V)
V_CADIZ_DVDD_1P8
SCL_CAD I2C4_SEN_SCL
I2C4_SEN_SDA 5,10,21,89
SDA_CAD
I2C4_SEN_SCL 5,10,21,89
I2C4_SEN_SDA
1 2
R1862
2.2KOhm
1 2
R1865
2.2KOhm
2
61
PQ1801A
PMDXB600UNE
5
34
PQ1801B
PMDXB600UNE
Cadiz(AVDD12/DVDD12)
300mA
GND
1 2
PR9306
1MOhm
OUT
1
GND1
2
EN
3
IN
4
GND2
5
PU9302
TLV73312PDQNR
12
PC9304
1UF/6.3V
12
PC9303
1UF/6.3V
12
PR9302
0R1J
V_CDZ_DVDD_1P2
VSD_1V8
GNDGND GNDGND
CDZ_1P2_LDO_EN5
Cadiz(DVDD18)
12 PR9303
0Ohm
12
PC9306
1UF/6.3V
12
PC9305
1UF/6.3V
1 2
PR9305
1MOhm
12 PR9304
0Ohm
OUT
1
GND1
2
EN
3
IN
4
GND2
5
PU9301
TLV71718PDQNR
VSYS
V_CADIZ_DVDD_1P8
GNDGNDGNDGND GND
CDZ_1P8_LDO_EN5
150mA
1 2R1868
0R1J
@
CDZ_OSC_EN10
1 2R18330R1J
12
C1806
0.1UF6.3VX5RC1K
12
C1817
0.1UF6.3VX5RC1K
1 2R18290R1J
1 2R18370R1J
12
C1809
0.1UF6.3VX5RC1K
1 2R1853
10KR1J
/@
1 2R18230R1J
1 2R1857
10KR1J
/@
E/D
1
GND2OUTPUT
3
VDD
4
U1802
19.2MHZ
1 2R1850
10KR1J
1 2R1854
10KR1J
1 2
R1852 0R1J@
12
C1804
0.1UF6.3VX5RC1K
12
C1814
0.1UF6.3VX5RC1K
1 2R1847
10KR1J
DVDD18_1
A4
RX3N
B1
I2C_SCL
B3
RX3P
C1
RX2N
C2
AVDD12_1
C3
I2C_SDA
C4
AVDD12_2
C6
RXCLKN
D1
RX2P
D2
AVDD12_3
D3
AVDD12_4
D6
RXCLKP
E1
RX1N
E2
RX0N
F1
RX1P
F2
AVDD12_5
F3
TESTMODE
F4
AVDD12_6
F6
RX0P
G1
DVDD18_2
G4
DVSS1
A1
DVSS2
A3
DVSS3
A5
DVSS4
A7
DVSS5
D4
DVSS6
G2
DVSS7
G5
DVSS8
G7
AVSS1
B2
AVSS2
B7
AVSS3
E3
AVSS4
E6
SLAVEAD
B4
RESETX
F5
SYSCLK
B6
PWM
E4
MODESEL0
C5
MODESEL1
B5
MODESEL2
E5
TX0P
G8
TX0N
F8
TX1P
F7
TX1N
E7
TX2P
D7
TX2N
C7
TX3P
C8
TX3N
B8
TXCLKP
E8
TXCLKN
D8
DVDD12_1
A2
DVDD12_2
A6
DVDD12_3
A8
DVDD12_4
D5
DVDD12_5
G3
DVDD12_6
G6
U1801
CXD4756GF
1 2R18280R1J
12
C1816
0.1UF6.3VX5RC1K
12
C1801
0.01UF6.3VX7R1K
1 2R1849 0R1J
@
12
C1803
0.1UF6.3VX5RC1K
1 2R1856
10KR1J
1 2R1848
10KR1J
@
1 2R1851
10KR1J
/@
1 2R18240R1J
12
C1818
1UF10VX5RC1M
12
C1802
0.1UF6.3VX5RC1K
1 2
R1846
0R1J
1 2R18350R1J
12
C1810
0.1UF6.3VX5RC1K
12
C1815
1UF10VX5RC1M
12
C1807
0.1UF6.3VX5RC1K
12
C1812
0.1UF6.3VX5RC1K
12
C1811
0.1UF6.3VX5RC1K
1 2R18390R1J
During Reset： Output
After Reset： H
1 2
R1858
10KR1J
12
C1808
1UF10VX5RC1M
1 2R18310R1J
12
C1813
0.1UF6.3VX5RC1K
1 2R1855
10KR1J
/@
1 2R1845
0R1J
12
C1805
0.1UF6.3VX5RC1K
1 2R18250R1J
V_CADIZ_DVDD_1P8
V_CADIZ_AVDD_1P2
V_CADIZ_DVDD_1P2
V_CADIZ_DVDD_1P8
V_CADIZ_DVDD_1P8
CADIZ_PWM_OUT89
CANDIZ_RST5
CADIZ_FSYS273
MDSI_C_CLK_DN
MDSI_C_DATA_3_DN
MDSI_C_DATA_2_DN
MDSI_C_DATA_1_DN
MDSI_C_DATA_0_DP
MDSI_C_CLK_DP
MDSI_C_DATA_3_DP
MDSI_C_DATA_2_DP
MDSI_C_DATA_1_DP
MDSI_C_DATA_0_DN
XTAL_SYSCLK
SLAVE_ADDR
SCL_CAD
SDA_CAD
SYSCLK_CAD
SLAVE_ADDR
I2C4_SEN_SDA
I2C4_SEN_SCL
CADIZ_PWM_OUT
Cadiz
MODESEL0
MODESEL1
MODESEL2 MODESEL0
MODESEL1
MODESEL2
TEST_MODE
MIPI_TX_D0P
MIPI_TX_D0N
MIPI_TX_D1P
MIPI_TX_D1N
MIPI_TX_D2P
MIPI_TX_D2N
MIPI_TX_D3P
MIPI_TX_D3N
MIPI_TX_CLKP
MIPI_TX_CLKN
RESET_N_CAD
MIPI_DSI0_CLK_N_CDZ
MIPI_DSI0_LANE3_N _CDZ
MIPI_DSI0_LANE2_N _CDZ
MIPI_DSI0_LANE1_N _CDZ
MIPI_DSI0_LANE0_P_C DZ
MIPI_DSI0_CLK_P_CDZ
MIPI_DSI0_LANE3_P_C DZ
MIPI_DSI0_LANE2_P_C DZ
MIPI_DSI0_LANE1_P_C DZ
MIPI_DSI0_LANE0_N _CDZ
TEST_MODE
Common Mode Choke
12
R1821
0R2J
1 2
R1822
0R2J
V_CADIZ_AVDD_1P2
V_CADIZ_DVDD_1P2
V_CDZ_DVDD_1P2
MIPI_DSI0_D2N
MIPI_DSI0_D3N
12
RN1805A
0OHM
MIPI_DSI0_D2P
MIPI_DSI0_D3P
Unmount
Unmount
Co-layout
Unmount
Unmount
1
4
2
3
L1801
90Ohm
/@
1
4
2
3
L1804
90Ohm
/@
1
4
2
3
L1802
90Ohm
/@
1
4
2
3
L1805
90Ohm
/@
1
4
2
3
L1803
90Ohm
/@
MIPI_DSI0_D0N
MIPI_DSI0_D1N
MIPI_DSI0_CLKN
MIPI_DSI0_D0P
MIPI_DSI0_D1P
34 RN1801B0OHM
34 RN1802B0OHM
34 RN1804B0OHM
34 RN1803B0OHM
MIPI_DSI0_CLKPMIPI_TX_CLKP
34 RN1805B0OHM
Unmount
MIPI_TX_D3P
MIPI_TX_D3N
MIPI_TX_CLKN
MIPI_TX_D2P
MIPI_TX_D2N
MIPI_TX_D0P
MIPI_TX_D0N
MIPI_TX_D1N
MIPI_TX_D1P
12
RN1802A
0OHM
12
RN1801A
0OHM
12
RN1804A
0OHM
12
RN1803A
0OHM
Touch Panel Issue Checklist
• Check CON1801及周邊零件是否有歪斜、空焊或損毀
• Check V_TP_1P8 (R1871.1) 是否為 1.8V
• Check I2C3_TP_SCL (R1859.1) & I2C3_TP_SDA (R1860.1) 準位是否為 1.8V
– 確認準位後，再用示波器確認波形是否正確
• Check TOUCH_INT_N (R1866.1) 在觸碰螢幕時，準位是否拉 Low
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