Motorola Moto Z Play User manual

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Subhead (Arial, U/L, 36pt)
Moto Z Play (Droid)/Moto Z Play
Baseband Trouble Shooting Guide
V1.0
© 2009 Motorola Proprietary & Confidential

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
TABLE OF CONTENTS
1. Block Diagram ……….....…………………………………………………....………......... 3
2. Snapshot of Main PCB ………….………………………………………....……….......…10
3. No Power Up Debugging ………………………………………………….………........... 14
4. Battery & Charging Troubleshooting ……...………………………….…………............ 27
5. Prox/ALS Troubleshooting …………………………………………….…….………........ 37
6. Nano SIM / uSD Card Troubleshooting ……………………….…….………….............. 41
7. Base Sensors Troubleshooting ………………...…….…………...……………....…....... 46
8. Fingerprint Sensor Troubleshooting …………………………….……………....…......... 53
9. Touch screen Troubleshooting …………………....…..………………….….…...…....... 56
10. Display Troubleshooting …………………………….…………….………….......……..... 64
11. Imager/Flash Troubleshooting ..…………………..………………………..….....…….…72
12. Audio & Vibrator Troubleshooting ...………....………………..…………….......……….. 83
13. Mods Interface Troubleshooting ………………………….……………….....…….…...... 99

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
BLOCK DIAGRAM

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
SNAPSHOT OF MAIN PCB

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Bottom Side
(Display side)
Top Side
(Battery side)
Main PCB – Top and Bottom

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
MSM8953
eMCP PMI895
2
Sensor
Hub
Flash Driver
Rear flash LED
flex connector
SIM/SD card / Mag
flex connector
Front
camera ZIF
Mic2
MOD Pucks
Mic1
Loud Spk
Contacts
MMMBPA
WTR2965
WTR2965
Smart
boost
HSJ
Main PCB – Top Placement

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
PM8953
Rear
Camera
ZIF
Display, Touch
Connector
Front flash LED
universal
contacts
PROX
Sensor
/ALS
SOL LED
USB
Battery
Conn
FPS ZIF
XBar
Sw
Mic3
NFC
BT/WIFI
CODEC
MyDP
APBA
Accel/
Gyro
HE
sensor
MIPI
SW
HSIC
SPI
SW
PMUX
Kung
Kow Powerkey
JTAG
Vol keys
Vibrator
universal
contacts
QFE
QFE
HBPA
Main PCB – Bottom Placement

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
NO POWER UP
DEBUGGING
Purpose of this document is to cover the debugging steps used to root cause PCB that do not power properly so that they may be used again to initiate corrective actions.

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – Glossary/Synonyms
• Terms on the same row are synonyms and will be used interchangeably in the guide.
!
MSM AP / BP MSM8953 U1000
Main PMIC PM8953 PM U2000
Charging PMIC PMI8952 PMI U2400
Kung Kalf(Kow) Factory Kill IC User Reset IC U650
B_PLUS VSYS System Battery Voltage
USB_PWR USB Voltage Charger Voltage
USB_INx PMUX_OUTx

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – Debug Procedure
● Generally the first step to troubleshooting a no turn on PCB is to look at its boot current. A blank board (no
software flashed yet) will normally draw about 150mA. The current will also be very constant.
● Also it is helpful to find out what level of functionality is available. These distinct modes were observed:
○ Blank Flash mode
■ Normally will enter this mode for a newly built PCB.
■ Can be forced by shorting debug connector as shown in later slides.
○ Fastboot mode
■ Normally will enter this mode after flashing bootloader into newly built PCB.
■ Can be forced using volume down key during bootup
○ Full Power up
■ Will enumerate to PC as Motorola Network device and ready for board test
● Failed boards will be able to achieve one of these modes but fail to get to the next. This bit of information is
useful for debugging.
● Start with the phone off, then plug in the USB cable. If the phone does not turn on when the USB cable is
inserted, there is most likely an issue with the connector.
● If the current is abnormally high for a blank board, the root cause is most likely a short. Going through the power
on sequence is helpful for finding shorts, it is shown on the next page.

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – Debug Test Setup
● Ideally, use 2 separate power supplies. This
allows you to monitor current to both USB and
battery at the same time.
● The USB power supply will always be 5.0V
with a 3A current limit.
● The Battery power supply will always be 4.0V
with a 3A current limit.
● For USB power supply, there are 2 options:
○ Use a Warthog board to supply USB
power externally
○ Modify a USB cable. Cut open the
cable, cut the red wire, and connect it to
the external power supply.

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – No Power On Debug Flowchart
Battery Current Check

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – No Power On Debug Flowchart
USB Current Check

Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
MOTOROLA CONFIDENTIAL
Power Management – No Power On Debug Flowchart
Battery Power Path