Nokia NSW-5 Series Service Manual page 234

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