Nokia NSB-7 Series Service Manual page 257

PAMS Technical Documentation
Reference
U54
J241
J242
J245*
R205#
J250
J251
J252
J253
J254
J255
J225
J256
J257
J259*
J260
J299*
R745#
L200
N310 PIN 13
N310 PIN 14
N310 PIN 16
Issue 1 06/00
Signal
MCURDX
MCUWRX
MCUAD1
SCLK
COBBA
(N250)CSX
COBBA
(N250)SDA
COBBA
(N250)CLK
PCMRXDATA
PCMDCLK
PCMSCLK
ESYSRESETX
PCMTXDATA
CCUT
(MCUGENIO0)
BUTTON_CTRL_2
(MCUGENIO2)
EXTMCUDA0
TXP
MIC
KBD LIGHT
KBDLED_ADJ
VIBRA_CTRL
ãNokia Mobile Phones Ltd.
Disassembly & Troubleshooting
Note
MCU READ
MAD (D200) -> COMPOMEMORY (D210)
MCU WRITE
MAD (D200) -> COMPOMEMORY (D210)
MCU ADDRESS LINE 1
MAD (D200) -> COMPOMEMORY (D210)
HAGAR (N505) SERIAL CLOCK
MAD (D200) -> HAGAR (N505)
COBBA (N250) CHIP SELECT
MAD (D200) -> COBBA (N250)
COBBA (N250) SERIAL BUS DATA
MAD (D200) <-> COBBA (N250)
COBBA (N250) SERIAL BUS CLOCK
MAD (D200) -> COBBA (N250)
AUDIO RECEIVED DATA
COBBA (N250) -> MAD (D200)
AUDIO DATA CLOCK (512kHz)
MAD (D200) -> COBBA (N250)
AUDIO SYNC CLOCK (8kHz)
MAD (D200) -> COBBA (N250)
COMPOMEMORY (D210) ENABLE
MAD (D200) -> COMPOMEMORY (D210)
AUDIO TRANSMITTED DATA
MAD (D200) -> COBBA (N250)
CHARGE CUT
MAD (D200) -> CHAPS (N101)
HEADSET BUTTON DETECTION CONTROL
MAD (D200) -> XMICP
MCU DATA LINE 0
MAD (D200) <-> COMPOMEMORY (D210)
TRANSMITTER POWER CONTROL
MAD (D200) -> RF
MIC BIAS VOLTAGE, 2.1v IF NO MIC
V250 -> MIC
KEYPAD LED LIGHT CURRENT
UI-SWITCH (N310) -> KEYPAD BACKLIGHT LEDS
KEYPAD BACKLIGHT BRIGHTNESS ADJUSTMENT
R311 -> UI-SWITCH (N310)
VIBRA DRIVE
UI-SWITCH (N310) -> VIBRA (M300)
NSB-7
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