Nokia 6265 Antenna Description And Troubleshooting
Mobile terminals
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Also See for 6265:
- User manual (257 pages) ,
- Rf description and troubleshooting (84 pages) ,
- Baseband description and troubleshooting (60 pages)
Related Manuals for Nokia 6265
Summary of Contents for Nokia 6265
- Page 1 Nokia Customer Care 6265/6265i/6268 (RM-66) Mobile Terminals Antenna Description and Troubleshooting ©2005 Nokia Corporation Issue 1 11/2005 Company Confidential...
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Page 2: Table Of Contents
6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting Contents Page Introduction ..............................3 Main CDMA Antenna............................. 3 E-cover Assembly/CDMA Antenna ......................3 Damaged CDMA Sticker or Bezel Assembly ..................5 Missing or Damaged CDMA Antenna Pogo Pins ................5 Obstructed RF Feed and Ground Pads....................5 Broken or Missing Matching Circuit .................... -
Page 3: Introduction
Nokia Customer Care Antenna Description and Troubleshooting Introduction This troubleshooting guide addresses potential failures that affect antenna performance of the 6265/6265i/6268, and discusses methods for correction of these failures. Main CDMA Antenna E-cover Assembly/CDMA Antenna E-cover/CDMA antenna The E-cover assembly is comprised of the E-cover plastic portion, the CDMA antenna (CDMA radiator) and the bezel assembly (camera and flash windows and the bezel). - Page 4 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting Flash window CDMA antenna CDMA antenna (radiator) (radiator) Bezel Camera window E-cover plastic Bezel assembly Figure 1: E-cover assembly To remove the E-cover assembly from the D-cover, use the SRT-6 opening tool to release the four snap-in tabs that lock the E-cover from the D-cover, as shown.
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Page 5: Damaged Cdma Sticker Or Bezel Assembly
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting Damaged CDMA Sticker or Bezel Assembly • If the CDMA sticker is damaged (scratched, cut, cracked, corroded, tabs broken), replace the entire E-cover assembly. It is not possible to replace only the CDMA... -
Page 6: Broken Or Missing Matching Circuit
6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting • If corrosion is present or the pads are missing, replace the PWB. • If either pad is obstructed or covered, the pads should be cleared and/or cleaned. Broken or Missing Matching Circuit • If the CDMA antenna matching circuit is damaged or missing, replace the component. -
Page 7: Auxiliary Antennas: Gps, Bt And Fm
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting Auxiliary Antennas: GPS, BT and FM Disassembly for Auxiliary Antenna Removal 1. Remove the battery cover. Figure 6: Battery cover removal 2. Remove the battery. Figure 7: Battery removal ©2005 Nokia Corporation... - Page 8 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting 3. Remove the E-cover. Figure 8: E-cover removal 4. Remove the four Torx screws. Figure 9: Screw removal ©2005 Nokia Corporation Page 8 Company Confidential Issue 1 11/2005...
- Page 9 6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting 5. Remove the D-cover. Figure 10: D-cover removal 6. Remove the audio module. Figure 11: Audio module removal ©2005 Nokia Corporation Issue 1 11/2005 Company Confidential Page 9...
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Page 10: Gps Antenna
6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting GPS Antenna GPS antenna is a printed trace on a flex that adheres to the plastic audio module. It connects to two pogo pins soldered (SMD) to the main PWB. On the back of the PWB (the side with the battery connector and camera), the GPS SMD pogo pins (3.8mm high) - Page 11 6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting Table 1: GPS antenna system failure modes(Continued) Failure Solution If the GPS cellular blocking chip elements are Replace with good GPS chip components. believed to be incorrect, then replace with correct chips.
- Page 12 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting 3. The GPS antenna feed tab at the bottom of the audio module. 4. The GPS antenna starts on right side. 5. The GPS antenna ends at the audio port. (Note the black, audio, outer gasket.) ©2005 Nokia Corporation...
- Page 13 6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting 6. The image shows the GPS/audio module - top side. The GPS trace starts at the right side and wraps around to the audio gasket at top of the picture. 7. The audio module must be carefully installed under the small ledge inside the top of the D-cover.
- Page 14 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting 8. The audio module must be carefully pressed forward to first clear, and then engage the catches near your thumbs. 9. The image below shows a properly installed GPS/audio module, locked in place by the catches and small ledge.
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Page 15: Bt Antenna
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting BT Antenna The BT antenna is a stamped, trimmed metal sheet formed with two spring contacts and heat staked to a plastic support structure. This antenna is located to the right of the battery with the baseband shield under it. - Page 16 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting 2. Release the inner catch inside the D-cover that locks the BT antenna and the outer catch. The spring contacts that feed the BT antenna are located to the left of the catch. Figure 13: BT antenna inner catch inside D-cover 3.
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Page 17: Fm Antenna
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting FM Antenna The FM antenna uses the connection through a headset and the Universal Headset Jack or the Pop-port connector to create an FM antenna of reasonable gain. The RF test... - Page 18 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting FM antenna formed by connecting a headset to the Universal Headset Jack (UHJ). Figure 17: FM antenna - Universal Headset Jack (UHJ) connector ©2005 Nokia Corporation Page 18 Company Confidential Issue 1 11/2005...
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Page 19: Circuit Diagrams And Chip Locations For Auxiliary Antennas
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting Circuit Diagrams and Chip Locations for Auxiliary Antennas. Matching chips for UHJ Figure 18: UHJ FM antenna matching elements ©2005 Nokia Corporation Issue 1 11/2005 Company Confidential Page 19... - Page 20 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting Pop-port connector Matching chips for Pop-port connector FM circuit UHJ capacitor Figure 19: Pop-port matching elements and one UHJ matching element ©2005 Nokia Corporation Page 20 Company Confidential Issue 1 11/2005...
- Page 21 6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting GPS antenna pogo pins Two GPS cellular rejection elements UHJ inductor for FM antenna UHJ capacitor for FM antenna Pop-port capacitors for FM antenna Figure 20: Location of auxiliary antenna ©2005 Nokia Corporation...
- Page 22 6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting GPS RF connector GPS cellular- blocking components GPS antenna pogo pins and two GPS antenna cellular rejection elements Figure 21: GPS antenna components ©2005 Nokia Corporation Page 22 Company Confidential Issue 1 11/2005...
- Page 23 6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting BT antenna spring clip feed pads Figure 22: BT antenna pads ©2005 Nokia Corporation Issue 1 11/2005 Company Confidential Page 23...
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Page 24: Uim Card Holder
6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting UIM Card Holder UIM card holder is grounded through grounding tabs. An improperly grounded card tray may degrade performance of BT and CDMA antennas. If grounding tabs are permanently deformed of damaged, then replace the D-cover. -
Page 25: Missing Or Damaged Foil
6265/6265i/6268 (RM-66) Nokia Customer Care Antenna Description and Troubleshooting A-cover foil GND pogo pins between A-cover and B-cover Rubber gasket Figure 24: A-cover foil and GND pogo pins Missing or Damaged Foil • If the A-cover foil is damaged (cut, scratched, corroded), replace the A-cover assembly. -
Page 26: Hac Coil
6265/6265i/6268 (RM-66) Antenna Description and Troubleshooting HAC Coil Missing or Damaged HAC Coil The HAC coil is soldered on the UI PWB and is accessed by removing the LCD frame from the B-cover. • If the HAC coil is damaged, replace it.