1. Gary QuartanaMotorola 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

2. Gary QuartanaMotorola Confidential Proprietary Jul 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 failure 2.BT_TxPower failure 3.BT_Audio_Loopback failure 4.BT_Crystal_Trim failure 5.BT_Host_Wake failure 6.BT_Connection_Test failure

3. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 Power up time (timescale expanded) TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Neptune LTS/LTE 95L14 BlueTooth Module PCAP BTRF_REG = 1.8VDC UART2 SAP BLUE WAKE 26MHz XTAL BLUE HOST WAKE 26MHz XTAL IO_REG = 2.775VDC System Block Diagram 32KHz

4. Gary QuartanaMotorola Confidential Proprietary Jul 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 34 1 9 17 10 18 26

5. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 Data output settle time Lights On TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Test 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 27-34 7.Check bottom side of L14 BT module for good solderability of pins 1-9 32kHz R321 26MHz C762926MHz C7630 12M Signaling Enlarge Images Below For Viewing 1 33 4 5 Use Radiocomm v7.1.1 or later BT section under CIT tab 5

6. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 Data output settle time Lights On TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Test 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 analyzer 4.Check 26MHz crystal input (C7630, C7629) 5.Check UART signal activity (TPBLUE_TX, TPBLUE_RX, TPBLUE_CTS. TPBLUE_RTS – 2.775V) 26MHz C762926MHz 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

7. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 Data output settle time Lights On TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Test 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 C762926MHz C7630 Enlarge Images Below For Viewing 1 3 3 Use Radiocomm v7.1.1 or later BT section under CIT tab Audio Loopback 1

8. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Test 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 C762926MHz C7630 Enlarge Images Below For Viewing 1 3 2 Use Radiocomm v7.1.1 or later BT section under CIT tab 2

9. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 TPS851 output URTS1 GPIO control V80 Trouble Shooting Guide Bluetooth Test 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 module 4.Check Host_Wake and Wake signal activity (TPBLUE_HW, TPBLUE_W – 2.775V) 26MHz C762926MHz C7630 Enlarge Images Below For Viewing 1 3 2 Use Radiocomm v7.1.1 or later BT section under CIT tab 2 4 4 12M Signaling

10. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 TPS851 output V80 Trouble Shooting Guide Bluetooth Test 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

11. Gary QuartanaMotorola Confidential Proprietary Jul 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 V cc 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

12. Gary QuartanaMotorola Confidential Proprietary Jul 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 later 1) SUSPEND 2) Run URTS1_high test script (this turns GPIO power on to the light sensor)

13. Gary QuartanaMotorola Confidential Proprietary Jul 17, 2003 Data output settle time Lights Off URTS1 GPIO control V80 Trouble Shooting Guide Ambient Light Sensor Test procedure for Failure Analysis 1) SUSPEND 2) Run URTS1_high test script (this turns power on to the light sensor) 3) Click GSM tab 1 4) Go to A/D section and click “manual entry” in the dropdown box 5) Click Execute 6) Another popup window will come up for the AD_CONV value. Enter 30 and click OK 7) You will see the hex value of the A/D sampled voltage seen by Neptune 8) 0000 indicates a dark environment or sensor turned off, non zero value (ex: 03FF high) indicates bright environment 9) 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