Nokia 3105 Servicehandbuch
CCS Technical Documentation
Troubleshooting - RF
RH-48
Issue 1 11/2003
© 2003 Nokia Corporation Confidential
Page 15
Cell PMIC
The following tables show the PMIC troubleshooting information.
PMIC Setup:
Mode
Tx
Rx
Band
Local
On
On
CELL
PMIC Measurements:
Pin
Label
Test Point
Units
Depends
on
Comments
1
EP
Pin 1
1.8
UPP
IC enable = GenIO 10
2
M0
Pin 2
1.8
UPP
Control 0 = GenIO 12
3
M1
Pin 3
1.8
UPP
Control 1 = GenIO 13
4
NC
NC
NC
NC
NC
5
FB
Pin 5
0.75 - 4
M0, M1
See PA worksheet. Output to fly-
back inductor.
back inductor.
6
FB
Pin 6
0.75 - 4
M0, M1
Shares PWB pad with pin 5
7
BYPVout
bottom-
C808
C808
0.75 - 4
M0, M1
PMIC bypass output used at
Pout > 12 dBm
Pout > 12 dBm
8
VDD
right-L810
VBATT
VBATT
Digital DC supply, shared with
pin 12, 14, 15
pin 12, 14, 15
9
VSS
GND
GND
GND
Digital GND, shared gnd with
pin 13
pin 13
10
NC
NC
NC
NC
NC
11
Vbgap
NC
NC
NC
Bandgap voltage output
12
VDD
right-L810
VBATT
VBATT
Digital DC supply
13
Vss
GND
GND
GND
Digital GND, shared gnd with
pin 9
pin 9
14
Vsw
right-L810
VBATT
VBATT
Switcher supply
15
Vsw
right-L810
VBATT
VBATT
Switcher supply
16
Gsw
GND
GND
GND
Switcher GND, does not share
with pin 9 and pin 13
with pin 9 and pin 13
Good phone PMIC Resistances
Pin
Resistance
1
60k
2
75k
3
80k