Nokia 9000i Service Manual page 74

RAE/RAK–1N
RF
CRFCONT
Vbias VR1 VR2
+4V5_TX: VHLO:
TX buffers VHF LO
GSM: 13 mA GSM: 8 mA
PCN: 21 mA PCN: 17 mA
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Battery
7.2 V
(min. 5.7 V)
VR3 VR4
VPLL:
UMA1018
Negat.volt.
18.5 mA
Figure 3. Power distribution diagram
Technical Documentation
2 mA
VCXO
Switch
GSM: 1300 mA
Power
PCN: 900 mA
Amplifier
VR5 VR6 VR7
+4V5_RX: VTX:
RF LNA CRFRT (VTX)
IF amps
CRFRT (VTX_slow)
GSM: 18 mA
39 mA
PCN: 31 mA
VRX:
CRFRT (VRX)
CRFRT (VB_ext)
< 1 mA
Amendment 1 04/97
After Sales
VREF
TXP
VR8
SYNTHPWR
TXPWR
RXPWR
35 mA
VB_EXT
VREF
PSL