Transceiver Troubleshooting; Baseband Troubleshooting; Pwb Test Points - Nokia NSM-4 Series Disassembly & Troubleshooting Instructions

NSM–4
Disassembly & Troubleshooting Instructions

Transceiver Troubleshooting

Baseband Troubleshooting

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

PWB Test Points

Reference
C213
J100*
J101
J102
J103
J104
J223
J226
J227
J228
J230
J234*
J235
J236
J237
J239
J240
J241
J242
Page 10
Signal
RFC
PWM
FBUSTX
FBUSRX
MBUS
CCONT CSX
CCONT INT
VCXOPWR
PURX
SLEEPCLK
GND
HAGAR _RESET_X HAGAR (N505) RESET
ROM1SELX
RAMSELX
SYNTHDATA
(SDATA)
DSPXF
MCURDX
MCUWRX
MCUAD1
E Nokia Corporation
PAMS Technical Documentation
Note
MAIN CLOCK (13MHz)
HAGAR (N505) –> MAD (D200)
CHARGE CURRENT CONTROL
CCONT (N100) –> CHAPS (N101)
FBUS TRANSMITTED DATA
MAD (D200) –> SERVICE INTERFACE
FBUS RECEIVED DATA
SERVICE INTERFACE –> MAD (D200)
ONE WIRE TWO DIRECTION SERIAL BUS
(9600 BIT/S)
MAD (D200) <–> SERVICE INTERFACE
CCONT (N100) CHIP SELECT
MAD (D200) –> CCONT (N100)
CCONT (N100) INTERRUPT
MAD (D200) –> CCONT (N100)
26MHz SYSTEM CLOCK CONTROL
MAD (D200) –> VCXO (G830)
POWER UP RESET
CCONT (N100) –> MAD (D200)
SLEEP CLOCK (32kHz)
CCONT (N100) –> MAD (D200)
GROUND
MAD (D200) –> HAGAR (N505)
FLASH CHIP SELECT
MAD (D200) –> COMBO MEMORY (D210)
RAM CHIP SELECT
MAD (D200) –> COMBO MEMORY (D210)
HAGAR (N505) SERIAL DATA
MAD (D200) –> HAGAR (N505)
NOT CONNECTED
MCU READ
MAD (D200) –> COMBO MEMORY (D210)
MCU WRITE
MAD (D200) –> COMBO MEMORY (D210)
MCU ADDRESS LINE 1
MAD (D200) –> COMBO MEMORY (D210)
Issue 1 01/2002