NSW-5
Disassembly and Troubleshooting Instructions
PAMS Technical Documentation
Page 28
Issue 1 10/00
Nokia Mobile Phones Ltd.
Function
Unit
Max
Typ
Min
Parameter
To
From
Signal
name
TXLX2
MAD
TX 1900
Logic high ”1”
2.1
2.85
V
Low power level
mode for power
detector
Logic low ”0”
0
0.6
V
High power detec-
tor mode power
detector
SENA2
MAD
2 Ghz
UHF PLL
Logic high ”1”
2.0
2.85
V
2 Ghz PLL enable
Logic low ”0”
0
0.8
V
RXPW
R2
MAD
PENTA
Logic high ”1”
2.0
V
VR8 ON, 1Ghz
frontend
Logic low ”0”
0
0.5
V
VR8 OFF
RXPW
R3
MAD
PENTA
Logic high ”1”
2.0
V
VR9 ON 2Ghz
frontend
Logic low ”0”
0
0.5
V
VR9 OFF
SPWR
3
COB-
BA_D
PENTA
Logic high ”1”
2.0
V
VR10 ON , 2Ghz
UHF
Logic low ”0”
0
0.5
V
VR10 OFF
TXPW
R1
MAD
CCont
Logic high ”1”
2.0
V
VR5 ON , TX pwr
control enable
Logic low ”0”
0
0.5
V
VR5 OFF
TXWR
2
MAD
PENTA
Logic high ”1”
2.0
V
VR12 ON ,
TDMA1900 TX–
upconverter en-
able
Logic low ”0”
0
0.5
V
VR12 OFF
TXWR
3
MAD
TDMA800
TX–up-
converter
Logic high ”1”
2.0
V
AMPS &
TDMA800 TX–up-
converter enable
Logic low ”0”
0
0.5
V
TX–UC disable
VR1
CCont
RF
Voltage
2.7
2.8
2.9
V
Supply for
VCTCXO, Erotus
VHF prescaler
and bias, and
2 GHz PLL
VR2
CCont
RF
Voltage
2.7
2.8
2.9
V
Supply voltage for
1GHZ UHF VCO
and prescaler
VR3
CCont
RF
Voltage
2.7
2.8
2.9
V
Supply voltage for
VHF VCO, LO
buffer, 1 Ghz TX–
mixer and power
detector
VR4
CCont
RF
Voltage
2.7
2.8
2.9
V
Supply voltage for
EROTUS IF–parts
and IF–amplifier
