Nokia 6230 Service Manual 06(a) rh12 bb trouble
CCS Technical Documentation
RH-12/RH-28 Series Transceivers
6(a) - Baseband Troubleshooting
Instructions
Issue 1 02/04 Nokia Corporation
RH-12/RH-28
Baseband Troubleshooting Instructions CCS Technical Documentation
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Page 2 Nokia Corporation Issue 1 02/04
RH-12/RH-28
CCS Technical Documentation Baseband Troubleshooting Instructions
Table of Contents
Page No
Introduction.................................................................................................................... 5
General Failures ............................................................................................................. 6
Phone is dead ...............................................................................................................6
Flash programming doesn’t work ................................................................................7
Charging Failure ..........................................................................................................8
Phone doesn’t stay on, or phone is jammed ................................................................9
Display Information: “Contact Service” ....................................................................10
Function Failures.......................................................................................................... 12
Camera Failure ...........................................................................................................12
No picture................................................................................................................ 12
Viewfinder working but no picture taken when pressing select-key ...................... 14
FM-radio Failure ........................................................................................................15
Infrared Communication Failure ...............................................................................16
SIM Failure ................................................................................................................17
MMC Failure .............................................................................................................18
Bluetooth Failure .......................................................................................................19
Display Failure ...........................................................................................................20
USB Data Transmission Failure ................................................................................21
Functional Cover Failure ...........................................................................................22
Audio Failure .............................................................................................................24
Uplink or downlink failure...................................................................................... 24
Uplink missing audio signal.................................................................................... 25
Uplink weak audio signal........................................................................................ 26
Uplink distorted audio signal .................................................................................. 27
Uplink TDMA noise................................................................................................ 28
Downlink missing audio signal ............................................................................... 29
Downlink weak audio signal ................................................................................... 30
Downlink distorted audio signal ............................................................................. 31
Downlink noise in audio signal............................................................................... 32
Downlink TDMA noise........................................................................................... 33
Various noise problems........................................................................................... 34
BT audio errors........................................................................................................ 35
Vibra errors ............................................................................................................. 36
BackLight Failure ......................................................................................................37
Key Failure ................................................................................................................38
Power Key Failure................................................................................................... 38
Volume Key Failure ................................................................................................ 39
Keypad Failure ........................................................................................................ 40
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Baseband Troubleshooting Instructions CCS Technical Documentation
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Page 4 Nokia Corporation Issue 1 02/04
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CCS Technical Documentation Baseband Troubleshooting Instructions
Introduction
This document describes in overview the different hardware error possibilities for the
RH-12/RH-28 phone.
Not every possible hardware error is described in this document, but only those possible
to correct.
Issue 1 02/04 Nokia Corporation Page 5
RH-12/RH-28
Baseband Troubleshooting Instructions CCS Technical Documentation
General Failures
Phone is dead
This means that the phone doesn’t use any current at all when supply is connected and/
or power key is pressed.
It is assumed that the voltage supplied is 3,9Vdc. UEME will prevent any functionality at
battery/supply levels below 2,9Vdc and the software will shut the phone down at 3,1Vdc.
Figure 1: Phone is dead
Phone is dead
Yes
Measure voltage on L260, L261,
L262, L263, L264, L265 and L206.
Should be ~3,9V
Yes
Measure voltages on both sides of
R302 when power key is pressed.
Should be ~0V.
Yes
Sleep clock on J401:
~32,768kHz, 1,8Vpp
Yes
Measure voltage on PURX =
1,8Vdc on J404 or N131 pin 3
~1sec after power key is pressed.
Yes
Measure voltage on VR3=2,78Vdc
on C295 pin1
NO
NO
NO
NO
NO
Failure in VBAT line:
Check X100, L260, L261, L262,
L263, L264, L265, L206, C260,
C261, C262, C283 and pwb
Check:
R302, S323 (power key) and pwb
Check:
B200, C209, C210, D200 and
PWB
Check:
D200 and pwb
Check:
D200, C295 and pwb
Yes
Verify that system clock is @
~26MHz, min 300mVACpp on
C422 pin2 towards D400 (TIKU)
with regular probe Cin ~10-13pF /
10M
Yes
Check:
D400 (TIKU) and D450, D451
(Flashes) and D455 SDRAM
NO
C422, R420, C514, C515, L515,
N500 (Helgo), G501 (26MHZ
Check:
XTAL) and pwb.
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RH-12/RH-28
CCS Technical Documentation Baseband Troubleshooting Instructions
Flash programming doesn’t work
The flash programming on RH-12/RH-28 boards is only possible via the pads on the PWB.
In case of Flash failure in production (FLALI station), problem is most likely related to
SMD problems. Possible failures could be Short-circuiting of balls under µBGAs (e.g.
UEME, TIKUEDGE, SDRAM, FLASH), missing or misaligned components.
In flash programming error cases the flash prommer (via Phoenix or Darium) can give
some information about the fault. The fault information messages could be:
• Phone doesn't set Flashbus TXD line high after VCC is switch on.
• External RAM test failed.
These errors are some of the most common errors and based on this, a fault finding diagram for flash programming is shown below. Various errors can appear from the prommer when flashing the phone - not all of them can be directly linked to the HW or phone.
Because of the use of uBGA components, it is not possible to verify on the diagram, if
there is a short circuit in control and address/data lines on TIKUEDGE, NOR flash, NAND
flash or SDRAM.
Re-solder \ Replace componet
Fix the connections if possible.
Else scarp the phone.
Figure 2: Flash programming does not work
Prommer information is:
External RAM test failed. (C108)
No
Check SDRAM orientation and placement.
Placement OK ?
No
Check PWB (if possible) and power lines.
Connecti ons OK ?
Replace the SDRAM
Flash again
Flash programming does not work
Prommer information is:
Phone dose not set Flashbus TXD line hi gh after VCC is switched on.
Yes
Yes
Yes
Yes
Yes
Check J386 - resistor R397/R396
Connecti ons ok ?
Yes
Try reading MCU ID with Phoenix
Reading OK ?
Yes
Try reading flash ID with Phoenix
Reading OK ?
Yes
Flash again
No
Re-solder \ Replace componet
No
Replace UEME or TIKU
No
Replace NOR or NAND flash
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RH-12/RH-28
Baseband Troubleshooting Instructions CCS Technical Documentation
Charging Failure
Charging fails and no current
drawn from 'charger'
Yes
Measure Vchar voltage on V101.
Is it > 3,0V?
Yes
Recalibrate charger circuitry and
retest. Did it work ?
Yes
END
Display information when charger
connected: "Not charging"
Yes
Recalibrate charger circuitry and
retest. Did it work ?
NO
Check:
X101, F100, C121, V101, C102,
C103 and PWB
D200 (UEME) is faultyNO
ENDYes
No
Verify through Phoenix that BSI =
~75kOhm (BL-5C) and BTEMP =
~47kOhm @ roomtemperature
(~25C)
Yes
Measure voltage on R200 towards
D200. Should be the same as
Vbat voltage
Yes
Phone should work. If not change
whole engine board
No
No
Check:
BSI: Battery (BL-5C), C100, R203,
pwb and R206
BTEMP: R100, C101, R202, pwb
and R207
Check:
R200, D200 (UEME) and pwb
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CCS Technical Documentation Baseband Troubleshooting Instructions
Phone doesn’t stay on, or phone is jammed
If this kind of a failure is presenting itself immediately after FLALI, it is most likely caused
by ASICs missing contact with PWB.
If the MCU doesn’t service the watchdog register within the UEME, the operations
watchdog will run out after approximately 32 seconds. It is not possible to measure this
service routine.
Figure 3: Phone doesn’t stay on, or is jammed
Phone doesn't stay on or phone is
jammed
Yes
Sleep clock on J401:
~32,768kHz, 1,8Vpp
Yes
Verify that system clock is @
~26MHz, min 300mVACpp on
C422 pin2 towards D400 (TIKU)
with regular probe Cin ~10-13pF /
10M
Yes
Measure voltage on PURX =
1,8Vdc on J404 or N131 pin 3
~1sec after power key is pressed.
Yes
UI functionality and keys react to
pressure
NO
NO
NO
NO
Check:
B200, C209, C210, D200 and
PWB
Check:
C422, R420, C514, C515, L515,
N500 (Helgo), G501 (26MHZ
XTAL) and pwb.
Check:
D200 and pwb
Check:
D400, D450, D451, Z300, Z301,
UI-board, keymat, lightguide and
pwb.
Yes
Is everything working until phone
shuts down after ~32sec
No
Retest and if phone still doesn't
work change whole engine board.
Change D200 (UEME)Yes
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RH-12/RH-28
Baseband Troubleshooting Instructions CCS Technical Documentation
Display Information: “Contact Service”
When this error appears in the display it means that one or more of the internal baseband tests has failed. The baseband tests (self tests) are performed each time the phone
is powered on. The self tests are divided into those performed while powering up (Start
up tests) and the ones that can be executed with a PC using Phoenix (Runtime tests). The
following Start-up tests are performed during power up:
UEM CBUS IF TEST
SLEEP X LOOP TEST
AUX DA LOOP TEST
EAR DATA LOOP TEST
TX IDP LOOP TEST
TX IQ DP LOOP TEST
SIM CLK LOOP TEST
SIM IO CTRL LOOP TEST
MBUS RX TX LOOP TEST
BACKUP BATT TEST
RADIO TEST
WARRANTY TEST
PA TEMP TEST
SIM LOCK TEST
PPM VALIDITY TEST
KEYBOARD STUCK TEST
LPRF IF TEST
FLASH CHECKSUM TEST
CAMERA IF TEST
EXT RAM DATA BUS TEST
EXT RAM ADDR BUS TEST
NAND FLASH ID TEST
BT WAKEUP TEST
IR IF_TEST
If all these self tests are passed, the phone will start up.
From Phoenix it’s possible to run all the self tests and the additional “Runtime test”. The
test cases can be seen below.
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CCS Technical Documentation Baseband Troubleshooting Instructions
Figure 4: Display Information: “Contact Service”
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RH-12/RH-28
Baseband Troubleshooting Instructions CCS Technical Documentation
Function Failures
Camera Failure
No picture
No picture
Module
placed
correctly?
Yes
1.8V
present at
Z901?
Yes
2.7V
present at
Z900?
Yes
26 Mhz
clock
present at
R900?
Yes
Remove
No No
module
Check for
short circuit of
No No
C903, C902
or C291
Check for
short circuit of
No No
C901, C900
or C289
Check for
No No
short circuit of
R900 or R904
Broken
springs etc.
in X900?
Yes
Change X900
Short
circuits?
Yes
Replace
component
Short
circuits?
Yes
Replace
component
Short
circuits?
Yes
Replace
component
Reposition module
UEME or PWB
FAILURE
UEME or PWB
FAILURE
PWB or TIKU
FAILURE
1.8V
present at
C904
Yes
Continue on
next page
Check for
No No
short circuit of
C904
Short
circuit?
Yes
Replace
component
PWB or TIKU
FAILURE
Page 12 Nokia Corporation Issue 1 02/04
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