Nokia NSB-7 Series Service Manual page 251

Transceivers

Table of Contents

NSB-7

PAMS Technical Documentation

Disassembly & Troubleshooting

List of Figures

Page No

Fig 1 C213, RFC in normal operation ....................................................................................................... 11

Fig 2 J227, PURX (levels).............................................................................................................................. 11

Fig 3 J228, SLEEPCLK .................................................................................................................................... 12

Fig 4 J236, RAMSELX .................................................................................................................................... 12

Fig 5 J237, SYNTHDATA ............................................................................................................................... 13

Fig 6 J241, MCUWRX.................................................................................................................................... 13

Fig 7 J242, MCUAD1 ..................................................................................................................................... 14

Fig 8 J245, SCLK ............................................................................................................................................. 14

Fig 9 J245, SCLK (DIFFERENT TIME SCALE IN OSCILLOSCOPE) ......................................................... 15

Fig 10 J250, COBBA (CSX) ........................................................................................................................... 15

Fig 11 J251, COBBA (SDA)........................................................................................................................... 16

Fig 12 J252, COBBA (CLK) ........................................................................................................................... 16

Fig 13 J253, PCMRXDATA, WinTesla AUdiotest, Loop ON, Input & Output Internal.................. 17

Fig 14 J254, PCMDCLK ................................................................................................................................. 17

Fig 15 J255, PCMSCLK.................................................................................................................................. 18

Fig 16 J256, PCMTXDATA, WinTesla Audiotest, Loop ON, Input & Output Internal................... 18

Fig 17 J260, EXTMCUDA0............................................................................................................................ 19

Fig 18 J299, TXP, WinTesla RF Control, TX, Burst, TX level 14, Data Type Cont........................... 19

Fig 19 L200, MIC, no mic connected........................................................................................................ 20

Fig 20 N310 PIN 19, VIBRA, ACTIVATED FROM KEYPAD .................................................................... 20

Fig 21 N310 PIN 6, BUZZER_CTRL ............................................................................................................ 21

Fig 22 R206, SENA......................................................................................................................................... 21

Fig 23 R211, VPP, WinTesla Self Test, MCU Eeprom interface ......................................................... 22

Fig 24 System clock picture........................................................................................................................ 24

Fig 25 Sleep clock picture. .......................................................................................................................... 25

Fig 26 Layout shown here is NSM-2. ....................................................................................................... 26

Fig 27 Picture 1. RX I/Q from Hagar to baseband ................................................................................ 36

Fig 28 Picture 2. RX I/Q before AGC......................................................................................................... 36

Fig 29 Picture 3. LNA control ..................................................................................................................... 37

Fig 30 Picture 4. PA selection and control ............................................................................................. 37

Fig 31 Picture 5. VBATT during TX burst.................................................................................................. 38

Fig 32 Picture 6. Switch Control................................................................................................................ 38

Fig 33 Picture 7. Power detector control ................................................................................................ 39

Fig 34 Picture 8. TX IQ Signals ................................................................................................................... 39

Fig 35 Picture 9. VCO, Operating Voltages ............................................................................................. 40

Fig 36 Picture 10. Clock Signals, VCTCXO, RFC ..................................................................................... 40

Issue 1 06/00

ãNokia Mobile Phones Ltd.

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