Nokia NHL-4 7210 Service Manual page 268

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List of Test Points
Test Points
Signal Test point Function
STISClk PRODTP1 STI serial clock
FBUSTXO PRODTP2 Flash programming data
and phone control
FBUSRXO PRODTP3 Flash programming data
and phone control
STITxD PRODTP4 STI data (Tx)
STIRxD PRODTP5 STI data (Rx)
VPP PRODTP6 Flash programming volt-
age
MBUS PRODTP7 Flash programming clock
and phone control
GND PRODTP8 Ground
NC PRODTP9
VBATT J100 Battery voltage
(10)
BSI J101 Battery size indicator
Local mode indicator
SIM removal indicator
Flash programming start
signal
BTEMP J102 Battery temp. Indicator
Test mode indicator
HSEAR L J103 FM radio audio L
HSEAR R J104 FM radio audio R
FMANT J105 FM radio antenna
ENB J152 Audio amplifier enable
CLK J153 Audio amplifier serial
clock
DATA J154 Audio amplifier data
VFLASH1 J300 Supply voltage to LCD
VIO (20) J301 Supply voltage to LCD
(IO)
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Characteristics Note
Digital signal 1.8 V
2.78V digital signal From phone to FPS-8/
PC
2.78V digital signal From FPS-8/PC to
phone
Digital signal 1.8 V
Digital signal 1.8 V
1.8V internal voltage
12V external voltage
2.78V digital signal Bi-directional phone
6.5 MHz max. control
Not used
1V in normal mode To UEM A/D converter
0V in local mode
If BSI line rises > 2.1V
2.78V BSI pulse
About 0.8V at 25°C
0V in test mode
Production testpoint
Production testpoint
Production testpoint
Digital signal 1.8 V From UPP to amplifier
Digital signal 1.8 V From UPP to amplifier
Digital signal 1.8 V From UPP to amplifier
2.78 V From UEM to LCD
1.8 V From UEM to LCD
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Signal Test point Function
FMWrEn J358 FM-radio write enable
FMClk J359 Reference clock for FM-
radio, 32 kHz
SIMDATA J386 SIM data
SIMRST J387 SIM reset
SIMCLK J388 SIM clock
VSIM J389 Power supply for SIM
card
PURX J402 Power up reset
SLEEPX J403 Sleep mode control signal
SLEEPCLK (40) J404 Sleep mode timing clock
UEMINT J405 Interrupt request for UPP
CBUSCLK J406 Serial control bus clock
CBUSDA J407 Serial control bus data
input/output
CBUSENX J408 CBUS enable signal
MBUSTX J409 MBUS from UPP to UEM
MBUSRX J410 MBUS from UEM to UPP
FBUSTX J411 FBUS from UPP to UEM
FBUSRX J412 FBUS from UEM to UPP
DBUSCLK J413 DBUS clock
DBUSDA (50) J414 DBUS data input/output
DBUSEN1X J415 DBUS selection and ena-
ble
Characteristics Note
Digital signal 1.8 V From UPP to FM-radio
Digital signal 1.8 V From UPP to FM-radio
Digital signal 1.8 / 3V From / to UEM / SIM card
Digital signal 1.8 / 3V From UEM to SIM card
3.25MHz digital clock signal From UEM to SIM card
1.8 / 3V
1.8V or 3V Depends on the SIM card
1.8V digital signal From UEM to UPP
1.8V when not in sleep
0V when in sleep mode
32.768kHz digital clock 1.8V
1.8V digital signal From UEM to UPP
1MHz digital clock signal From UPP (MCU) to UEM
1.8V Controlled by MCU
1.8V digital signal Between UPP (MCU) and
UEM
Controlled by MCU
1.8V digital signal From UPP (MCU) to UEM
Controlled by MCU
1.8V digital signal
1.8V digital signal
1.8V digital signal
1.8V digital signal
13MHz digital clock signal From UPP (DSP) to UEM
1.8V Generated by UPP
1.8V digital signal Between UEM and UPP
(DSP)
1.8V digital signal From UPP (DSP) to UEM
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