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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