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Ericsson A2618s Troubleshooting Guide
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Trouble
Shooti
ng
Guide
,
Advanced
4/00021-3/
FEA
20
9
544/
25
C
ļ
Ericsso
n
Mobile
Co
mmuni
cations
AB
5(78)
1.6
Pin
placing
Single
di
ode
(PI
N
diode)
Electro
lytic
capacitor.
Double
diod
e
or
single
transi
stor
Five
pin
circuit
(u
sually
volt-
age
reg
ulator).
Double
trans
istor.
N392
Eight
pin
circuit.
N200
N400
Crystal
N300
4
6
Table of Contents
Table of Contents
1
Explanations
2
On/Off, Enter Test Program
6
Eprom
10
ADC-Calibration (Voltage-Calibration)
12
BDATA-Calibration
15
Current Calibration
16
Network Problems
20
LO Fault
30
Vcxo
32
Rssi
34
Phase and Frequency Error
36
Transient Spectrum (Spectrum Due to Switching)
38
Modulation Spectrum Switched Mode (Spectrum Due to Modulation)
42
Burst Timing (Power Time Template)
50
Calibration Intermediate Power
52
Calibration Power Level
53
Audio
56
Keyboard
65
Display
67
Buzzer
69
Illumination
70
Top Indicator
71
SIM-Fault ("Insert Card")
72
Self-Test
75
ADC-Values
77
Revision History
78
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User Guide
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Ericsson A2618s Specifications
General
Brand
Ericsson
Model
A2618s
Category
Cell Phone
Language
English
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