NSM–4
Disassembly & Troubleshooting Instructions
PAMS Technical Documentation
Page 11
Issue 1 01/2002
Nokia Corporation
Note
Signal
Reference
J245*
SCLK
HAGAR (N505) SERIAL CLOCK
MAD (D200) –> HAGAR (N505)
J250
COBBA CSX
COBBA (N250) CHIP SELECT
MAD (D200) –> COBBA (N250)
J251
COBBA SDA
COBBA (N250) SERIAL BUS DATA
MAD (D200) <–> COBBA (N250)
J252
COBBA CLK
COBBA (N250) SERIAL BUS CLOCK
MAD (D200) –> COBBA (N250)
J253
PCMRXDATA
AUDIO RECEIVED DATA
COBBA (N250) –> MAD (D200)
J254
PCMDCLK
AUDIO DATA CLOCK (512KHz)
MAD (D200) –> COBBA (N250)
J255
PCMSCLK
AUDIO SYNC CLOCK (8kHz)
MAD (D200) –> COBBA (N250)
J255
ESYSRESETX
COMPOMEMORY (D210) ENABLE
MAD (D200) –> COMBO MEMORY (D210)
J256
PCMTXDATA
AUDIO TRANSMITTED DATA
MAD (D200) –> COBBA (N250)
J257
CCUT (MCUGE-
NIO0)
CHARGE CUT
MAD (D200) –> CHAPS (N101)
J258*
BUTTON_CTRL
(MCUGENIO1)
HEADSET BUTTON DETECTION CON-
TROL
MAD (D200) –> XMICP
J259
MCUGENIO2
NOT CONNECTED
J260
EXTMCUDA0
MCU DATA LINE 0
MAD (D200) <–> COMPOMEMORY (D210)
J299*
TXP
TRANSMITTER POWER CONTROL
MAD (D200) –> RF
L200
MIC
MIC BIAS VOLTAGE, 2.1V IF NO MIC
V250 –> MIC
N310 PIN 13
KBD LIGHT
KEYPAD LED LIGHT CURRENT
UI–SWITCH (N310) –> KEYPAD BACK-
LIGHT LEDS
N310 PIN 14
KBDLED_ADJ
KEYPAD BACKLIGHT BRIGHTNESS AD-
JUSTMENT
R311 –> UI–SWITCH (N310)
N310 PIN 16
VIBRA_CTRL
VIBRA DRIVE
UI–SWITCH (N310) –> VIBRA (M300)
N310 PIN 19
VIBRA
VIBRA CONTROL PWM
MAD (D200) –> UI–SWITCH (N310)
N310 PIN 3
BUZZER
BUZZER CONTROL PWM
MAD (D200) –> UI–SWITCH (N310)
N310 PIN 6
BUZZER_CTRL
BUZZER DRIVE
UI–SWITCH (N310) –> BUZZER (B301)
N310 PIN 7
KBLIGHTS
KEYPAD AND DISPLAY BACKLIGHT CON-
TROL
MAD (D200) –> UI–SWITCH (N310)