Transceiver Troubleshooting; Baseband Troubleshooting; Pcb Test Points - Nokia NSB-7 Series Service Manual

NSB-7
Disassembly & Troubleshooting

Transceiver Troubleshooting

Baseband Troubleshooting

PCB Test Points

Reference
C213
J100*
J101
J102
J103
J104
J121#
J122#
J223
J226
J227
J228
J230
J234*
J235
J236
J237
J239
Page 8
Signal
RFC
PWM
FBUSTX
FBUSRX
MBUS
CCONT (N100)CSX
DATA_A
SIMIO/O_C
CCONT (N100)INT
VCXOPWR
PURX
SLEEPCLK
GND
HAGAR
(N505)_RESET_X
ROM1SELX
RAMSELX
SYNTHDATA
(SDATA)
DSPXF
ãNokia Mobile Phones Ltd.
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) -> CCONT (N100)
CCONT (N100) CHIP SELECT
MAD (D200) -> CCONT (N100)
SIM DATA
CCONT (N100) <-> SIM CARD READER (X302)
SIM IO CONTROL
CCONT (N100) <-> SIM CARD READER (X302)
CCONT (N100) INTERUPT
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
HAGAR (N505) RESET
MAD (D200) -> HAGAR (N505)
FLASH CHIP SELECT
MAD (D200) -> COMPOMEMORY (D210)
RAM CHIP SELECT
MAD (D200) -> COMPOMEMORY (D210)
HAGAR (N505) SERIAL DATA
MAD (D200) -> HAGAR (N505)
NOT CONNECTED
Issue 1 06/00