NSB-7
Disassembly & Troubleshooting
PAMS Technical Documentation
Page 8
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Nokia Mobile Phones Ltd.
Issue 1 06/00
Transceiver Troubleshooting
Baseband Troubleshooting
PCB Test Points
Reference
Signal
Note
C213
RFC
MAIN CLOCK (13MHz)
HAGAR (N505) -> MAD (D200)
J100*
PWM
CHARGE CURRENT CONTROL
CCONT (N100) -> CHAPS (N101)
J101
FBUSTX
FBUS TRANSMITTED DATA
MAD (D200) -> SERVICE INTERFACE
J102
FBUSRX
FBUS RECEIVED DATA
SERVICE INTERFACE -> MAD (D200)
J103
MBUS
ONE WIRE TWO DIRECTION SERIAL BUS (9600 BIT/S)
MAD (D200) -> CCONT (N100)
J104
CCONT (N100)CSX
CCONT (N100) CHIP SELECT
MAD (D200) -> CCONT (N100)
J121#
DATA_A
SIM DATA
CCONT (N100) <-> SIM CARD READER (X302)
J122#
SIMIO/O_C
SIM IO CONTROL
CCONT (N100) <-> SIM CARD READER (X302)
J223
CCONT (N100)INT
CCONT (N100) INTERUPT
MAD (D200) -> CCONT (N100)
J226
VCXOPWR
26MHz SYSTEM CLOCK CONTROL
MAD (D200) -> VCXO (G830)
J227
PURX
POWER UP RESET
CCONT (N100) -> MAD (D200)
J228
SLEEPCLK
SLEEP CLOCK (32kHz)
CCONT (N100) -> MAD (D200)
J230
GND
GROUND
J234*
HAGAR
(N505)_RESET_X
HAGAR (N505) RESET
MAD (D200) -> HAGAR (N505)
J235
ROM1SELX
FLASH CHIP SELECT
MAD (D200) -> COMPOMEMORY (D210)
J236
RAMSELX
RAM CHIP SELECT
MAD (D200) -> COMPOMEMORY (D210)
J237
SYNTHDATA
(SDATA)
HAGAR (N505) SERIAL DATA
MAD (D200) -> HAGAR (N505)
J239
DSPXF
NOT CONNECTED