Transceiver Troubleshooting; Baseband Troubleshooting; Pcb Test Points - Nokia NSM-3 Series Disassembly & Troubleshooting Instructions

PAMS Technical Documentation

Transceiver Troubleshooting

Baseband Troubleshooting

Because of the underfilling of the MAD and combo memory, it is impossible
to change those.

PCB Test Points

Reference
C213
J100*
J101
J102
J103
J104
J121#
J122#
J223
J226
J227
J228
J230
J234*
J235
J236
J237
J239
J240
Issue 3 11/2000
Disassembly & Troubleshooting Instructions
Signal
RFC MAIN CLOCK (13MHz)
HAGAR (N505) –> MAD (D200)
PWM CHARGE CURRENT CONTROL
CCONT (N100) –> CHAPS (N101)
FBUSTX FBUS TRANSMITTED DATA
MAD (D200) –> SERVICE INTERFACE
FBUSRX FBUS RECEIVED DATA
SERVICE INTERFACE –> MAD (D200)
MBUS ONE WIRE TWO DIRECTION SERIAL BUS
(9600 BIT/S)
MAD (D200) <–> SERVICE INTERFACE
CCONT CSX CCONT (N100) CHIP SELECT
MAD (D200) –> CCONT (N100)
DATA_A SIM DATA
CCONT (N100) <–> SIM CARD READER
(X302)
SIMIO/O_C SIM IO CONTROL
CCONT (N100) <–> SIM CARD READER
(X302)
CCONT INT CCONT (N100) INTERRUPT
MAD (D200) –> CCONT (N100)
VCXOPWR 26MHz SYSTEM CLOCK CONTROL
MAD (D200) –> VCXO (G830)
PURX POWER UP RESET
CCONT (N100) –> MAD (D200)
SLEEPCLK SLEEP CLOCK (32kHz)
CCONT (N100) –> MAD (D200)
GND GROUND
HAGAR _RESET_X HAGAR (N505) RESET
MAD (D200) –> HAGAR (N505)
ROM1SELX FLASH CHIP SELECT
MAD (D200) –> COMBO MEMORY (D210)
RAMSELX RAM CHIP SELECT
MAD (D200) –> COMBO MEMORY (D210)
SYNTHDATA HAGAR (N505) SERIAL DATA
(SDATA) MAD (D200) –> HAGAR (N505)
DSPXF NOT CONNECTED
MCURDX MCU READ
MAD (D200) –> COMBO MEMORY (D210)
E Nokia Mobile Phones Ltd.
NSM–3/3D
Note
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