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Gary Quartana Motorola Confidential Proprietary
V80 Trouble Shooting Guide
Jul 17, 2003
~10ns
Power up time
URTS1 GPIO control
TPS851 output
V80
Troubleshooting Guide
Rev 1.0
3/29/04
Gary Quartana
• Bluetooth• Rotator Detection• Ambient Light Sensor
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Power up time (timescale x 4)Power up settling time
TPS851 output
V80 Trouble Shooting Guide
Bluetooth
Test procedure for Failure Analysis
1. BT_Init failure2. BT_TxPower failure3. BT_Audio_Loopback failure4. BT_Crystal_Trim failure5. BT_Host_Wake failure6. BT_Connection_Test failure
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Power up time (timescale expanded)
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
Bluetooth
Neptune LTS/LTE
95L14BlueToothModule
PCAP
BTRF_REG = 1.8VDC
UART2
SAP
BLUEWAKE 26MHz
XTAL
BLUE HOST WAKE
26MHz
XTAL
IO_REG = 2.775VDC
System Block Diagram
32KHz
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights On (lower lux)
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
Bluetooth
BTRF_REG – 1.875V
IO_REG – 2.775V
32KHz clock
26MHz clock
IO_REG – 2.775V
Pin 25 PA Output
UART test points
Host_W/Wake/ClkEn test points
27
341 9
17
10
1826
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights On
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_Init failure
1. Check UART signal activity (TPBLUE_TX, TPBLUE_RX, TPBLUE_CTS. TPBLUE_RTS – 2.775V)
2. Check for BTRF_REG (C360 – 2.875V) and IO_REG (C361 – 2.775V)
3. Check 26MHz crystal input (C7630, C7629)
4. Check 32kHz crystal input (R321)
5. Check Host_Wake and Wake signal activity (TPBLUE_HW, TPBLUE_W – 2.775V)
6. Check left side of L14 BT module for good solderability of pins 27-347. Check bottom side of L14 BT module for good solderability of pins 1-9
32kHz R32126MHz C7629 26MHz C7630 12M Signaling
Enlarge Images Below For Viewing
1
3 3 4
5
Use Radiocomm v7.1.1 or later BT section under CIT tab
5
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights On
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_TxPower failure
1. Check DC Impedance on TP300 BT antenna pad (6 to 7kohm)
2. Check metal BT antenna on back housing (look for bent or damaged part, good GND and TP100 connection)
3. Generate CW wave and probe BT antenna pad for signal on spectrum analyzer4. Check 26MHz crystal input (C7630, C7629)
5. Check UART signal activity (TPBLUE_TX, TPBLUE_RX, TPBLUE_CTS. TPBLUE_RTS – 2.775V)
26MHz C7629 26MHz C7630
Enlarge Images Below For Viewing
1
4 4
3
Use Radiocomm v7.1.1 or later BT section under CIT tab
12M Signaling
5
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights On
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_Audio_Loopback failure
1. Check Audio Loopback (Click ‘Execute’ to generate 1kHz tone at level 2FFF and check that the response is not all zeros (0’s) )
2. Check BTRF_REG (1.875V)
3. Check 26MHz crystal input (C7630, C7629)
4. Check left side of L14 BT module for good solderability of pins 27-34
26MHz C7629 26MHz C7630
Enlarge Images Below For Viewing
1
3 3
Use Radiocomm v7.1.1 or later BT section under CIT tab
Audio Loopback
1
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_Crystal_Trim failure
1. Check BTRF_REG (1.875V)
2. Check 26MHz crystal input (C7630, C7629)
3. Inspect Y5802 crystal for any damage
26MHz C7629 26MHz C7630
Enlarge Images Below For Viewing
1
3 2
Use Radiocomm v7.1.1 or later BT section under CIT tab
2
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_Host_Wake failure
1. Check BTRF_REG (1.875V)
2. Check 26MHz crystal input (C7630, C7629)
3. Check pins 9 and 11 for good solderability on module4. Check Host_Wake and Wake signal activity (TPBLUE_HW, TPBLUE_W – 2.775V)
26MHz C7629 26MHz C7630
Enlarge Images Below For Viewing
1
3 2
Use Radiocomm v7.1.1 or later BT section under CIT tab
2
4
412M Signaling
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
TPS851 output
V80 Trouble Shooting Guide
BluetoothTest procedure for Failure Analysis
BT_Connection_Test failure
Perform BT_Init and BT_TxPower failure analysis
• BT should pass connection test if all other tests pass • Else, check antenna in test fixture for proper signal strength
1
Use Radiocomm v7.1.1 or later BT section under CIT tab
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights Off
TPS851 output
URTS1 GPIO control
V80 Trouble Shooting Guide
Rotator Detection
Test procedure for Failure Analysis
• Check for IO_Reg present on Vcc cap connected to pin 6 of each sensor(2.775V on C1780, C1701, C1771)
• Check output of sensor on pin 1 when magnet placed over top of IC(2.775V Logic high when no magnet, 0V Logic low when magnet placed over top of sensor IC)(C1770, C1711, C1781)
Radiocomm (SUSPEND): CIT tab (Get Flip State)
1. Rotate blade to 180 degrees and verify sensor functionality by checking the FLIP state for ‘Open’ or a return string of 0x01.2. Rotate blade to 90 degrees and verify sensor functionality by checking the FLIP state for a return string of 0x02.3. Rotate blade to 0 degrees and verify sensor functionality by checking the FLIP state for ‘Closed’ or a return string of 0x00.
U1770, U1700 & U1780
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights Off
URTS1 GPIO control
V80 Trouble Shooting Guide
Ambient Light Sensor
Test procedure for Failure Analysis
• Check for 2.775V on R838 when toggling GPIO URTS1 PE0 high(C801 and pin 1 of Q801 on keypad)
• Check for valid voltage levels on R834 and pin 5 when under office lighting(Voltage levels increase as ambient light increases)
Use Radiocomm v7.1.1 or later1) SUSPEND2) Run URTS1_high test script (this turns GPIO power on to the light sensor)
Gary Quartana Motorola Confidential ProprietaryJul 17, 2003
Data output settle time Lights Off
URTS1 GPIO control
V80 Trouble Shooting Guide
Ambient Light Sensor
Test procedure for Failure Analysis
1) SUSPEND2) Run URTS1_high test script (this turns power on to the light sensor)3) Click GSM tab 14) Go to A/D section and click “manual entry” in the dropdown box5) Click Execute6) Another popup window will come up for the AD_CONV value. Enter 30 and click OK7) You will see the hex value of the A/D sampled voltage seen by Neptune8) 0000 indicates a dark environment or sensor turned off, non zero value (ex: 03FF high) indicates bright environment9) Values will change depending on the intensity of light entering the light hole on front housing
Use Radiocomm v7.1.1 or later
Test Scripts given to factory or follow 12M
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