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Nokia 6015 Troubleshooting - Rf
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Nokia 6015 Troubleshooting - Rf

Nokia 6015 Troubleshooting - Rf

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Nokia Customer Care
6015/6015i/6016i/6019i (RH-55),
6012 (RM-20) Series Transceivers
Troubleshooting - RF
©2004 Nokia Corporation
Issue 1 08/2004
Company Confidential

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  • Page 1 Nokia Customer Care 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Series Transceivers Troubleshooting - RF ©2004 Nokia Corporation Issue 1 08/2004 Company Confidential...

  • Page 2: Table Of Contents

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Contents Page RF Troubleshooting............................5 Phone Components ............................. 6 General Troubleshooting ........................... 8 TX Power Low............................. 8 Receiver Not Working Properly......................8 Phone Cannot Make a Call........................8 Transmitter Parts ............................9 Cell Transmitter Block Diagram ......................
  • Page 3 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF TX UHF LO Schematic ........................... 57 UHF PCS TX LO Spectrum ........................59 UHF Cell TX LO Spectrum ........................60 GPS RF Troubleshooting ..........................61 GPS Schematic............................62 GPS RF General Testing ..........................63 Self Test Failure ............................
  • Page 4 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care This page intentionally left blank. ©2004 Nokia Corporation Page 4 Company Confidential Issue 1 08/2004...

  • Page 5: Rf Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF RF Troubleshooting When troubleshooting the receiver, first check the RX_AGC PDM value. The AGC value should be close to the typical values (see "RF AGC Status" on page 26). The RX AGC tries to keep a constant amplitude at the output of the receiver chain;...

  • Page 6: Phone Components

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Phone Components Figures 1 and 2 illustrate the main components of the 6015/6015i/6016i/6019i, and 6012. Cell RF connector GPS RF Connector VBATT Flash UI LEDs SRAM BB Connector Figure 1: Component layout (bottom) ©2004 Nokia Corporation...
  • Page 7 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Cell antenna pads HF speaker pads Power switch GPS shield GPS CER filter Audio ASIP GPS antenna pads HS jack pads GPS SAW filter GPS LNA Battery connector GPS BB IC...

  • Page 8: General Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care General Troubleshooting Use the following steps to troubleshoot some common issues, such as low transmitter power, a faulty receiver, or a phone that cannot make a call. TX Power Low...

  • Page 9: Transmitter Parts

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF 4. The call box channel is set for a channel in PRL. 5. The SID is correct and entered into the phone. 6. The VCTCXO is centered as described in the VCTCXO tuning description on page 49.

  • Page 10: Cell Transmitter Block Diagram

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Cell Transmitter Block Diagram Following is the block diagram for the TX system. Figure 4: TX system block diagram ©2004 Nokia Corporation Page 10 Company Confidential Issue 1 08/2004...

  • Page 11: Transmitter Schematics

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Transmitter Schematics The following schematics are for general reference only. See the Schematics chapter for detailed versions. Jupiter TX IC TX LO lock voltage Cell TX filter PCS TX filter...
  • Page 12 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care PCS duplexer PCS PA Diplexer Power detector Couplers Cell PA Cell duplexer Figure 6: Transmitter schematic 2 ©2004 Nokia Corporation Page 12 Company Confidential Issue 1 08/2004...

  • Page 13: Transmitter Troubleshooting Setup

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Transmitter Troubleshooting Setup Use the following sections to set up troubleshooting in Phoenix according to the band you are using: • "AMPS TX Setup" • "Cell TX Setup" • "PCS TX Setup"...

  • Page 14: Cell Tx Setup

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care The AMPS Control dialog box appears. Figure 8: AMPS Control dialog box 6. Click the Tx Control tab. 7. In the Set Channel field, type 384. 8. In the Power Level field, type 2.
  • Page 15 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF 3. Select the following values on the RF Main Mode dialog box: Band = Cell (CDMA) • Channel = 384 • Mode = Rx/Tx • Figure 9: RF Main Mode dialog box 4.

  • Page 16: Pcs Tx Setup

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care The RF PDM Control dialog box appears. Figure 11: RF PDM Control dialog box for Cell troubleshooting 9. Click Read Phone to update the values. 10. Configure the spectrum analyzer using the following values: •...

  • Page 17: Transmitter Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF 4. Select the following values on the RF Main Mode dialog box: Band = PCS (CDMA) • Channel = 600 • Mode = Rx/Tx • 5. Click Set. Note: Be sure that the “RF Main Mode set successfully” message appears in the status bar.

  • Page 18: Failed Test: Tx Pa Detector

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care 2. If all DC voltages are present, check the AGC control voltages. (See Figure 13 on page 19). • If the voltages are incorrect, check the SMDs around the TX_AGC1 and TX_AGC2 lines.

  • Page 19: Tx Dc Probe Points

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Bad output Good output Figure 12: The output of the phone on a spectrum analyzer should look like the figure on the left If using the AAS-10 probe with the phone connected to the call box, the amplitude should be approximately -7 dBm at the antenna test point on the top of the PWB.
  • Page 20 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Figure 14: Bottom side TX DC probe points Table 1 shows the TX DC probe points for the bottom and top sides of the PWB. Table 1: TX DC Probe Points...

  • Page 21: Tx Rf Probe Points

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Table 1: TX DC Probe Points (Continued) Test Point Description Value 2.78V VR1B 4.7V 2.78V Vbatt* 3.2 to 4.7V TX detector out Approximately 1.5V Note: Vbatt also appears at the outputs of the PAs.

  • Page 22: Receiver Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Table 2: TX RF Probe Points (Continued) Test Point Description Value TX IQ in with oscilloscope Approximately 500 mV p-p with +1.2 V offset TX UHF LO PCS: 3760 MHz, -54 dBm Cell: 3346.08 MHz, -57 dBm...
  • Page 23 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF PCS RF FILTER AMPS PCS DUPLEX FILTER DEMOD FILTER AMPS BBFIL/BBAMP Alfred Rx IC Batman Rx Down-converter DIPLEX FILTER CDMA Cell Cell CDMA CELL DUPLEX FILTER FILTER CELL RF FILTER Figure 16: Receiver system block diagram ©2004 Nokia Corporation...

  • Page 24: Receiver Schematics

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Receiver Schematics The following schematics are for general reference only. See the Schematics chapter for detailed versions. Cell RF SAW filter PC RF SAW filter AMPS IF crystal filter CDMA IF SAW filter...
  • Page 25 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Loop filter RX LO lock voltage 1.2 to 1.7 Vdc Batman RX downconverter Figure 18: Receiver schematic 2 ©2004 Nokia Corporation Issue 1 08/2004 Company Confidential Page 25...

  • Page 26: Rf Agc Status

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care RF AGC Status Figure 19 shows the RF AGC Status dialog box. When configuring the values on this dialog box, note the following: • The RF AGC status functionality only works in Call Mode.

  • Page 27: Turning On The Rx Path

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Turning on the RX Path Use the following steps to turn on the RX path using Phoenix. 1. Turn on Receiver Only in CDMA mode. 2. On the Phone Control dialog box, click the LOCAL button in the Phone State area to put the phone into Local Mode.
  • Page 28 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Figure 21: RF Main Mode dialog box for Cell (top), AMPS (middle), and PCS (bottom) ©2004 Nokia Corporation Page 28 Company Confidential Issue 1 08/2004...

  • Page 29: Switching The Rx Gain States

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Switching the RX Gain States Use the RF Gen I/O dialog box to switch the gain state (Hi and Lo) for CDMA and AMPS modes. Select the desired state, and click Refresh.
  • Page 30 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Cell I Q Output Trace A Trace A 302 kHz -21.2500 dBm -100 Centre: 300 kHz Atten: 10 dB Span: 200 kHz Res BW: 3 kHz Vid BW: 3 kHz...

  • Page 31: Pcs Receiver Check From Rf To Iq

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF PCS Receiver Check from RF to IQ Use the following values to check the PCS receiver functionality from RF to IQ output. 1. Start Phoenix in Local Mode with only the RX path turned on.

  • Page 32: Amps Receiver Check From Rf To Iq

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care RX_IP RX_IN RX_QP RX_QN Figure 26: Cell spectrum (left) and IQ output test points (right) AMPS Receiver Check from RF to IQ Use the following steps to check the AMPS receiver functionality from RF to IQ output.
  • Page 33 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Figure 27: Receiver IQ Level on AMPS band Figure 28 shows the AMPS spectrum with an inject tone at -75dBm, as well as the IQ output test points. Note that DC is present on the IQ output test points, and all test points should be approximately equal.

  • Page 34: Receiver Diagnostic Signal Tracing

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Receiver Diagnostic Signal Tracing Use the following steps to trace a receiver signal. 1. Inject an external signal source of –25dBm into the RF input. An Agilent call box 8960 is recommended.

  • Page 35: Receiver If

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Table 4 includes the descriptions and values for the RX RF troubleshooting test points shown in Figure 29. Table 4: Receiver RF Troubleshooting Values Test Description Value Point RX LO (from VCO) 1009.62MHz at -8 dBm...
  • Page 36 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Table 5 includes the descriptions and values for RX IF troubleshooting test points shown in Figure 30. Table 5: Receiver IF Troubleshooting Values Test Description Value Point CDMA IF (to SAW) 128.1 MHz...

  • Page 37: Receiver Dc

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Receiver DC Alfred RX FE IC Figure 31: Receiver DC troubleshooting test points and RX front-end logic levels Table 6 includes the descriptions and values for RX DC troubleshooting test points shown in Figure 31.

  • Page 38: Receiver Logic Input Voltages

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Receiver Logic Input Voltages Following are the measure logic levels for the RX front end (N750). See Figure 22 on page 29 for the manual selection of logic states using Phoenix.

  • Page 39: Alfred (N750) Receiver Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Alfred (N750) Receiver Troubleshooting Keep the following under consideration when troubleshooting the Alfred (N750) receiver: • There is a separate LNA for 800MHz (Cell and AMPS) and 1900MHz (PCS). • There is a separate RFA (inside Alfred) for 800MHz (Cell and AMPS) and 1900MHz (PCS).

  • Page 40: Synthesizer Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care IMPORTANT: You must check for both conditions before replacing Alfred. If you have no LO signal, refer to "UHF Synthesizer Troubleshooting" on page 50. If you have a significant supply voltage drop on one of the supply pins, then replace Alfred.

  • Page 41: Synthesizer Block Diagram

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Synthesizer Block Diagram Batman Batman RX VHF Synthesizer RX VHF Synthesizer Phase Phase Charge Charge Reference Reference Detector Detector Pump Pump Divider Divider 2 mA 2 mA 9-Bit B 9-Bit B...
  • Page 42 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Table 9: Synthesizer Block Diagram Component Values (Continued) Item Description Value RX VHF LO 256.2MHz TX UHF LO 3395.88MHz 3819.90MHz ©2004 Nokia Corporation Page 42 Company Confidential Issue 1 08/2004...

  • Page 43: Synthesizer Schematic

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Synthesizer Schematic The following schematic is for general reference only. See the Schematics chapter for detailed versions. VCTCXO with AFC control 19.2MHz buffer not installed UHF PLL IC Loop filter Figure 34: Synthesizer schematic ©2004 Nokia Corporation...

  • Page 44: 19.2 Mhz Vctcxo Reference Clock

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Use the following steps to troubleshoot the synthesizer using Phoenix: 1. On the Phone Control dialog box, click the LOCAL button in the Phone State area to put the phone into Local Mode.

  • Page 45: Measuring The Afc Voltage

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF If you do not see the VCTCXO signal at any of these points, check to see if there is voltage at the following points: • VR3, main supply line for VCTCXO circuitry, should be 2.78VDC •...

  • Page 46: Vctcxo Manual Tuning

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Typical voltages observed are as follows: • AFC PDM[0] = 1.3V • AFC PDM[-1024] = 0.8V • AFC PDM[1023] = 2.5V VCTCXO Manual Tuning The VCTCXO can be manually tuned to verify when a phone is tuned incorrectly or if the phone cannot make a call.
  • Page 47 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF 6. The next step depends on the type of measurement equipment you are using: • Spectrum analyzer: Set the center frequency to 836.52MHz, set the span to 2MHz, and establish a marker at 836.52MHz.
  • Page 48 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Figure 40: TX output for Cell channel 384 at 25C Figure 41: TX output for PCS channel 600 at 25C ©2004 Nokia Corporation Page 48 Company Confidential Issue 1 08/2004...

  • Page 49: Vctcxo And Uhf Synthesizer Probe Points

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF VCTCXO and UHF Synthesizer Probe Points Figure 42 shows the VCTCXO probe points (alphabetic) and the UHF synthesizer probe points (numeric). Figure 42: VCTCXO and UHF synthesizer probe points Table 12 shows the values and description for the VCTCXO probe points in Figure 42.

  • Page 50: Uhf Synthesizer Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Table 11 shows the values and description for the UHF synthesizer probe points in Figure 42. Table 12: UHF Synthesizer Probe Point Values and Descriptions Probe Description Values Point 2.8V Lock voltage DC between 0.8 and 3.4V, S/B 1.2V at the...
  • Page 51 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF The Frequency Calculator dialog box appears. Figure 43: Frequency Calculator dialog box for Cell (top) and PCS (bottom) 2. Check to see if the LO is locked. Set a channel and check the output of the UHF LO at L502 within a very narrow span of 100KHz.

  • Page 52: Uhf Synthesizer Schematic

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care UHF Synthesizer Schematic The following schematic is for general reference only. See the Schematics chapter for a detailed version. UHF PLL IC Dual-band Lock voltage Loop filter components Figure 44: UHF synthesizer schematic ©2004 Nokia Corporation...

  • Page 53: Pcs Uhf Lo Channel 600 Spectrum

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF PCS UHF LO Channel 600 Spectrum Measure the signal purity of the UHF LO and check the spur level offset from the carrier. Also, check the VCO, PLL IC, loop filter, and power supply decoupling.

  • Page 54: Rx Vhf Lo

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care • 60kHz offset -91dBc • 90kHz offset -91dBc Figure 46: Cell UHF LO channel 384 typical spectrum Following ar possible causes for an incorrect UHF frequency: RX VHF LO The RX VHF LO operates at a fixed frequency of 256.2MHz. It is the second LO for down- conversion to I and Q for baseband processing.

  • Page 55: Rx Vhf Lo (Batman) Schematic

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF RX VHF LO (Batman) Schematic The following partial schematic is for general reference only. See the Schematics chapter for a detailed version. Lock voltage Loop filter components PLL in Batman...

  • Page 56: Tx Uhf Lo

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Figure 48 shows the RX VHF LO probe points. Figure 48: RX VHF LO probe points Table 13 gives the description and values for the probe points as shown in Figure 48.

  • Page 57: Tx Uhf Lo Schematic

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF TX UHF LO Schematic The following partial schematic is for general reference only. See the Schematics chapter for a detailed version. Lock voltage Loop filter Figure 49: TX UHF LO schematic (partial view) ©2004 Nokia Corporation...
  • Page 58 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care Figure 50 shows the TX UHF LO probe points. Figure 50: TX UHF LO (Jupiter) probe points Table 14 gives the description and values for the probe points as shown in Figure 50.

  • Page 59: Uhf Pcs Tx Lo Spectrum

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF UHF PCS TX LO Spectrum Following is the UHF PCS TX LO (3700 ~3819.90)/2 MHz spectrum. Key observations: • The following reference spurs • 50kHz offset -59dBc Figure 51: UHF PCS TX LO (3700 ~3819.90)/2 MHz typical spectrum ©2004 Nokia Corporation...

  • Page 60: Uhf Cell Tx Lo Spectrum

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care UHF Cell TX LO Spectrum Following is the UHF Cell TX LO (3296 ~3395.88)/4 MHz Cell spectrum. Key observations: • The following reference spurs • 30kHz offset -65dBc Figure 52: UHF Cell TX LO (3296.16 ~3395.88)/4 MHz Cell typical spectrum ©2004 Nokia Corporation...

  • Page 61: Gps Rf Troubleshooting

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF GPS RF Troubleshooting Following is the GPS RF block diagram. Figure 53: GPS RF block diagram ©2004 Nokia Corporation Issue 1 08/2004 Company Confidential Page 61...

  • Page 62: Gps Schematic

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care GPS Schematic The following schematic is for general reference only. See the Schematics chapter for a detailed version. GPS TCXO GPS RF chip RF input 2nd RF filter 1st RF filter Figure 54: GPS RF schematic ©2004 Nokia Corporation...

  • Page 63: Gps Rf General Testing

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF GPS RF General Testing In radiated testing the CW level has to be higher because of the attenuation in pad + cable + coupler. With a -20 dB pad, the signal level in the signal generator is ~ -110 dBm + cable attenuation + 20 dB + 18 dB.

  • Page 64: Self Test Failure

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care 3. Open the Troubleshooting menu, and click GPS Control. The GPS Control dialog box appears. Figure 57: GPS Control dialog box 4. Select GPS Quick Test in the Function area, and ensure that the Test Mode area shows a value of Galvanic.
  • Page 65 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF Figure 58: GPS testing area Table 15 gives the description and values for the probe points as shown in Figure 58. Table 15: GPS Test and DC Probe Point Values...

  • Page 66: Gps Rf Probing

    6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care GPS RF Probing Use the following steps for RF probing: 1. Open the Troubleshooting menu, and click GPS Control. The GPS Control dialog box appears. Figure 59: GPS Control dialog box 2.
  • Page 67 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Nokia Customer Care Troubleshooting - RF 6. Measure the probe points with either a voltmeter or an AAS_10B probe with a spectrum analyzer set at a center frequency of 1575.25MHz and a span of 500kHz. (All points are 1575.52MHz, except for TCXO, which is at 16.368MHz.)
  • Page 68 6015/6015i/6016i/6019i (RH-55), 6012 (RM-20) Troubleshooting - RF Nokia Customer Care This page intentionally left blank. ©2004 Nokia Corporation Page 68 Company Confidential Issue 1 08/2004...

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