Nokia 7250, 7250i Service Manual
CCS Technical Documentation
System Module
Schematics
NHL-4J/NHL-4JX
Issue 2 06/03
Nokia Corporation
A-1
NHL-4J/NHL-4JX Top Level
1
2
3
4
5
6
D
C
B
A
6
5
6
7
9
1
8
0
1
2
2
1
0
1
0
IPA2
IPA1
0
9
2
7
6
5
4
3
VR4
VR5
VR3
VR2
VR1A
VR2
VR3
VR4
VR5
VR6
VR7
VrefRF01
VrefRF02
VR7
VBAT
VR6
RFTEMP
RXI
RXQ
Reset
TXA
TXC
TXIM
TXIP
TXP
TXPWRDET
TXQM
TXQP
VBAT
VCTCXO
VCTCXOGnd
VR1
RF
AFC
IPA1
IPA2
Mode
RFBusClk
RFBusData
RFBusEna1
RFCONV_ANA_O(16:0)
RFCONV_DIGI_O(16:0)
RFCONV_O(9:0)
RFICCTRL_O(2:0)
SLOWAD_O(6:0)
GENIO_O(31:0)
SLOWAD(6:0)
SYS
schematic
GENIO_O(31:0)
LPRFCLK_I
PUSL_O(3:0)
RFAUXCONV_O(2:0)
RFAUX_O(1:0)
RFCLKGND_I
RFCLK_I