Nokia 1508i Troubleshooting Manual
Mobile terminal antenna description and troubleshooting
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Also See for 1508i:
- User manual (73 pages) ,
- Troubleshooting manual (37 pages) ,
- Service manual (17 pages)
Related Manuals for Nokia 1508i
Summary of Contents for Nokia 1508i
- Page 1 1508i(RM-430) Antenna Description and Troubleshooting Nokia Customer Care Nokia Customer Care 1508i (RM-430) Mobile Terminal Antenna Description and Troubleshooting Issue 1 Copyright © 2008 Nokia, All rights reserved...
- Page 2 1508i(RM-430) Antenna Description and Troubleshooting Nokia Customer Care Contents Antenna Troubleshooting Issue 1 Copyright © 2008 Nokia, All rights reserved...
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Page 3: Failures And Corrective Measures
If no internal antenna is installed, the antenna gain is degraded by more than 20 dB. If the internal antenna is missing, install antenna-asm Module. If the radiator looks damaged, replace it with a new antenna–asm Module. Figure 1: B Cover Assembly Issue 1 Copyright © 2008 Nokia, All rights reserved... - Page 4 If the RF feed pin is broken or bent so that the pin does not touch the PWB, replace the antenna-asm Module. If the RF feed pin spring appears damaged, replace the antenna-asm Module. Figure 3: back view of internal antenna Issue 1 Copyright © 2008 Nokia, All rights reserved...
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Page 5: Obstructed Rf Feed Point Pad
If a pad is obstructed or covered by something, clear and/or clean the pad. If any component of antenna match circuit is missing ,replace the PWB Figure 4: PWB layout of RF feed point and antenna match circuit Issue 1 Copyright © 2008 Nokia, All rights reserved... - Page 6 RF input terminal – connect to duplexer. RF output terminal – connect to the antenna pad through antenna match circuit. RF connector terminal – connect to RF coaxial cable. Figure 6: RF input / output terminal Issue 1 Copyright © 2008 Nokia, All rights reserved...