K800 - K810
1202-3085 rev. 2
TROUBLESHOOTER
TROU
B
L
E
S
H
O
OTE
R
Test current consumptions
3.8 Volt limiter 3A
Connect the Dummy Battery (3.8 Volt, limiter 3A)
Measure the current in off mode, less than 1mA. If more, it could be Marlin
A1300
or
A1200
fault.
Insert a live SIM and power up the phone.
Measure the deep sleep current max 6mA typical between
0-3mA.
If the phone uses more than 6mA, make a master reset. Make sure that the operator is running
with deep sleep. (This operation can be switched off by operator if the network is busy).
Insert a test SIM and power up the phone to a network tester.
Measure the current in idle mode max 6mA typical between
0-3mA.
Measure the Transmitter current 900 MHz power level 5. Max
400mA
(RMS) 1800mA (peak)
Measure the Transmitter current 1800 and 1900 MHz power level 0. Max
300mA
(RMS)
1500mA (peak)
Measure the Transmitter current WCDMA at 23dBm output power. Max
900mA
(RMS) 3000mA
(peak).
If the phone uses more the fault could be fixed by running SERP calibrating or the fault is in the
Marlin
A1300
, Ray
A1200
or Vincenne
N2000
.
If Using fault trace Sw and ITP loaded in the phone the current consumptions are as followed.
Transmitter current 900 MHz at power level 5. Typical
300mA
(RMS)
Transmitter current 1800 and 1900 MHz at power level 0. Typical
250mA
(RMS)
Current in WCDMA mode at max power level 23 dBm and Rx on.Typical
750mA
(RMS)
If the current consumptions are equal to the sheet then go to
charging test
.
Test Charging
Current at 20sek. after chargers plug
I has been inserted ( 20 % tolerance )
Dummy battery (Volt)
3.0 3.1 3.2
3.3
3.4
3.5
3.6
3.7
3.8 3.9 4.0 4.1
4.2
Chargers plug 5.3 Volt.Current mA 250 250 600 700 800 800 800 800 800 800 800 800
0
LCD show charging
X
% to 100%
indicator
0
0
0
10
10
20
60
80
90
90
LCD
show
Nothing
Fully
charged
Chargers plug
The power supplier at 3.8 Volt must allow reverse current.
If the charging current is
not
equal to the sheet go to
Charging problems
.
If the charging current is equal to the sheet then insert the normal battery and test the
charging current to define if the battery is working properly.
Measure the voltage at the battery to define the current level.
If the battery is receiving the right current, then the phone and the battery are working
properly.
O
o
o O
5,3V 800mA
Test Current Consumptions - Test Charging
SEMC Electrical Repair Manual
58
(121)
Summary of Contents for K800
Page 122: ...www s manuals com ...
