Nokia 5110 Instruction De Maintenance

NSE–1

System Module UP8S

Original 03/98

3/A3–S11

J516

VSYN_1 ( regulated supply for VCOs)

2.8 V min 2.7 / max 2.85 V

J518

VREF_2 ( ref. voltage for N500 )

1.5 V +/– 1.5%

J520

AFC ( autom. freq. cntrl )

0 – 2.3 V, typ. 1.15 V ( room temp. )

J522

VXO ( regulated supply for VCTCXO )

2.8 V min 2.7 / max 2.85 V

J530&J532

71 MHz IF input to N620

–95 dBm @ X540

(ext. RF connector )

typ. ca. 1.2 V pulsed

typ 100 – 140 uVpp balanced voltage at 71 MHz

J540

13 MHz output from N620 to Z620

–95 dBm @ X540

(ext. RF connector )

RXC at level of full

calibrated gain

typ. ca. 1.5 V pulsed

typ. ca. 700 uVrms

J550 & J552

116 MHz TX IF to N500

typ. ca. 1.1 – 1.2 V pulsed

typ. ca. 100 mVrms each

J562

RXC ( receive gain control voltage )

RX gain setting depended

control range is 0.5 – 1.45 V, ,pulsed.

typ. 1.3–1.4 V for calibrated maximum gain

(Version 9)

J101

FBUS_TX

active state

pulsed DC (0V72.8V)

J104

CCONTCSX (CCONT chip select)

active state

pulse active 0V, non–active 2.8V

J108

CHRG_CTRL

charger connected

pulsed DC (0V/2.8V)

J220

V5V

active state

nominal 5.0V (min 4.8V, max 5.2V)

J223

CCONTINT (charger, RTC interrupt)

interrupt

 pulse active 2.8V, non–active 0V

J225

EXTSYSRESETX

power on

reset state 0V, normal state 2.8V

J226

VCXOPWR

power on

active state 2.8V, non–active 0V

J227

PURX (power on reset)

power up/down

reset state 0V, normal state 2.8V

J228

SLEEPCLK (32kHz clock)

power on

pulsed DC (0V/2.8V)

J235

ROM1SELX

active state

pulse active 0V, non–active 2.8V