Manual Verification; Troubleshooting - Nokia NSD-6 Disassembly & Troubleshooting Instructions

NSD-6
Disassembly/Troubleshooting Instructions
and is stored to eeprom under the handle RF_TUNE_AMPS_RSSI_HI_HANDLE.

Manual Verification

Use WinTesla as follows:

Troubleshooting

Check components in the AMPS receiver chain starting with the Duplexer Z701, Down
Converter IC N703, 128.55MHz IF SAW filter Z702, 450KHz Ceramic filters Z706 and
Z708 and RIF N702. Check the Rx VHF LO RIF N702 Pin 20 (TP107) see below. Also check
RIF 450KHz output LIM_P Measured at RIF Pin 17 (TP108) and the RSSI voltage at RIF
N702 Pin 16 (TP109) which indicates the signal level into the receiver.
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Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Issue 1 04/01