Nokia 6020b Service Manual
Issue 1 03/2005
COMPANY CONFIDENTIAL
5
Copyright © 2005 Nokia. All Rights Reserved.
RM-31
6(a) - Baseband Troubleshooting Instructions
6(a) - Baseband Troubleshooting Instructions
Nokia Customer Care
Test Points
J
3
18
3 S
3 S
T
IR
X
D
J31
82 GEN
TEST1
/STIS
CL
K
K
J3
18
1 GE
18
1 GE
NT
E
E
S
T0/
STITXD
J2
11
7 FLS
11
7 FLS
CLK
J2
814
814
EX
T
W
RX
RX
J2
118
118
FLS
CSX
J2
11
5 EX
11
5 EX
TRDX
J200
5 V
C
HA
R
J200
6 G
N
D
J28
05
CB
CB
US
DA
J21
16 F
L
S2
CS
CS
X
J2
430
430
J24
29
J200
9
J20
08
J201
0
J
2
8
06 CB
US
EN
X
J28
00 PU
RX
J28
01 SLE
EPX
J10
05 RX
IIN
P
P
J10
04 RX
QIN
P
J147
3 C
S
X
J14
72 T
X
DA
J2
81
3 DB
81
3 DB
US
E
N
1
X
J2
802
802
SL
EEP
CL
K
K
J2
80
4
80
4
C
B
B
US
CL
K
K
J28
1
5
RFCL
K
J28
12
DB
DB
US
DA
J281
1 D
B
U
S
CL
K
K
J2
81
0
81
0
FBUSRX
J28
0
8
MB
US
RX
J28
07 MB
US
TX
TX
J280
9 FB
US
TX
TX
J280
3 U
E
M
IN
T
J10
03 RE
SET
J1
47
0 VE
47
0 VE
N
J1
00
6 TXA
00
6 TXA
J
1
00
0
0
R
F
F
BU
SDA
J100
1 R
F
BU
SC
L
K
J1
002
002
RFBUSEN1
J14
71 CL
K
J1
47
4
47
4
X
S
S
HUTD
O
W
N
N
BSI Value
s
(BSI-GND
):
3k3
– Local mode
6k5
– Test mode
75k – BL5B Battery
J2
10
0_P
10
0_P
J210
1_N
X7
80
2
80
2
X7
8
8
0
7
X78
01
X7
80
6
80
6
X7
80
3
80
3
X
780
4
FLASHING PRODUCTION TESTPOINTS
VSI
M 1.8
V/3
.0 V
.0 V
VB
AT
AT
VFL
ASH2
VFL
ASH1
VA
NA
NA
VCORE 1.5
V
VR
6 2
.78
V
V
VR
5 2
.7
8
V
VR
1A
4.7
4.7
5 V
VR
2 2
.78
V
V
VR
1
B
0
V
V
VR
3 2
.78
V
V
VR
4
2.7
8 V
VR
7 2
.78
V
V
VI
O 1.
O 1.
8 V
PW
R_SW
ITCH