K850
1203-2528 rev. 1
TROUBLESHOOTING
Test Charging
TROU
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ASIC Revision Test
Purpose with this test is to check following items:
-
that ASIC-s Revision State is correct
-
Check if communication to and from the ASIC-s is Ok
The following ASIC-s is tested:
-
D2000 (Anja)
-
N2000 (Vera)
-
N1400 (Bluetooth and FM Radio ASIC)
-
N2525 (Accelerometer)
-
Touchpad ASIC
To perform this test use:
-
Phone with the ITP SW
-
TRS Fixture
-
Power Supply Channel 1 VBATT (Voltage: 3.8V, Limiter: 2A)
-
Power supply Channel 2 DCIO/SEPI (Voltage: 5V, Limiter: 2A)
-
Fault Trace SW choose General – Asic Revisions – Read All
Reference returned value can be found in the table below.
ASIC
Description
Product number
Return value (hex)
D2000
Anja
1200-0795 0x2C8
N2000
Vera
1000-8142 0xC5
N1400
Bluetooth:
Firmware Revision
Chip ID
1200-6182
Ox5,0x1
0x0,0x0,0x0,0x0
Will always return 0
on STLC because
Chip ID is not
supported.
N1400
FM Radio
1200-6182
Ox800
N2525
Accelerometer 1200-1223 0x3B
Touchpad
ASIC
Touchpad
1200-1603 0x1975
Will always return
0xFFFF on PBA level
Test Charging
To perform this test use:
-
Phone with the Normal SW (SSW)
-
Dummy Battery connected to Power Supply Channel 1 VBATT
-
Power Supply Channel 1 VBATT instrument settings:
Voltage: 3.0 to 4.2 Volts, according to VBATT row in the Reference Table.
Limiter: 2A
-
Power Supply Channel 2 DCIO/SEPI instrument settings:
Voltage: 5V
Limiter: 2A
Test instructions:
-
Disconnect the DCIO/SEPI Cable between each measurement and wait phone
to shutdown when changing VBATT voltage.
-
Take a note of Current measurements at Power Supply Channel 2 DCIO/SEPI
and Display charging indicator status, X seconds after DCIO/SEPI cable has
been inserted according to Test Time row in the reference table below.
-
Compare test results with reference table below, tol/-20%.
Reference Table
VBATT x 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
Test Time x sec.
15s
15s
25s
25s
25s
25s
25s
25s
25s
25s
25s
25s
35s
DCIO/SEPI Current
mA
200
200
200-400
200
200
200
200
750
750
750
650
380
0
Display indicate
charging
Nothing Nothing
Yes
Yes Yes Yes
Yes Yes Yes Yes Yes
Yes
Fully
Charged
Power Supply Channel 1 VBATT must allow reverse current.
If the charging current is
Not
equal to the reference table go to
Charging problems
TRS Guide.
If the charging current is equal to reference table then insert the normal battery and
test the charging current to define if the phone 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.
/ ASIC Revision Test
SEMC Troubleshooting Manual
23
(101)
