Nokia 5110 Instruction De Maintenance

NSE–1

System Module UP8S

Original 03/98

3/A3–S10

(Version 09)

J102

FBUS_RX

power on

pulsed DC (0V/2.8V)

J103

MBUS

power on

pulsed DC (0V/2.8V)

J107

LGND

0V

J110

VPP

flash programming

nominal 5V (5V flash) or 3.0V (3V flash)

J111

WDDISX

power on

reset state 0V, normal state 2.8V

J221

5V

flash programming

nominal 5.0V (5V flash) or 3.0V (3V flash)

J222

DSPXF

power on

pulse active 0V, non–active 2.8V

J224

VCOBBA

active state

nominal 2.8V (min 2.7V, max 2.85V)

J229

MAD selftest

test mode set externally

J230

MAD selftest

test mode set externally

J231

VSIM

SIM power on

nominal 2.8V (3V SIM card) or 5.0V (5V SIM card)

J232

VB (battery voltage in baseband)

battery connected

nominal 3.6V (min 3.0, max 4.2)

J233

RFCLK

active state

typ. 1.0Vpp (min 0.5Vpp, max 2.0Vpp)

J234

VSRM

power on

nominal 5.5V (min 5V, max 6V)

CCONT switch mode regulator ripple voltage

J236

RAMSELX

active state

pulse active 0V, non–active 2.8V

J250

GND

0V

J252

COBBARSTX

power on

reset state 0V, normal state 2.8V

J253

COBBAWRX

active state

pulse active 0V, non–active 2.8V

J254

COBBARDX

active state

pulse active 0V, non–active 2.8V

J255

COBBACLK

active state

pulsed DC (0V/2.8V)

J502

Power control op.amp output voltage to N550 ( Vpd, pin )

power level depended

pulsed DC

J506

RFC ( 13 MHz sinewave )

0 V

typ. 1.0 Vpp min 0.5/max 2.0 Vpp

J510

VRX ( regulated supply for RX )

2.8 V min 2.7 / max 2.85 V, pulsed

J514

VTX ( regulated supply for TX )

2.8 V min 2.7 / max 2.85 V, pulsed