Nokia 3510i Service Manual 9 rh 9 trouble

CCS Technical Documentation
RH-9 Series Transceivers

Troubleshooting Instructions

Issue 1 11/02 ãNokia Corporation
RH-9
Troubleshooting Instructions CCS Technical Documentation

Table of Contents

Introduction....................................................................................................................4
Baseband Testpoints ...................................................................................................... 5
Fault Finding Charts....................................................................................................... 6
Phone is dead ...............................................................................................................7
Flash programming does not work ..............................................................................8
Power does not stay on or phone is jammed ................................................................9
Display information: "Contact Service" ....................................................................10
The phone does not register to the network, or the phone cannot make a call ..........11
SIM related faults ......................................................................................................12
Insert SIM card fault ............................................................................................... 12
SIM-Card rejected................................................................................................... 13
Audio related faults ....................................................................................................14
Charging failure .........................................................................................................16
RF Troubleshooting ..................................................................................................... 18
General description of the RF circuits..................................................................... 18
Receiver................................................................................................................... 24
General Instructions for GSM900 RX Troubleshooting......................................... 24
Fault Finding Chart for GSM900 Receiver............................................................. 26
General Instructions for GSM1800 RX Troubleshooting....................................... 27
Fault Finding Chart for GSM1800 Receiver........................................................... 29
Measurement points in the receiver ........................................................................ 31
Transmitter .................................................................................................................32
Measurement points for the transmitter .................................................................. 32
General instructions for GSM TX troubleshooting................................................. 33
Fault finding chart for GSM900 transmitter ........................................................... 34
PCN TransmitterGeneral instructions for PCN TX troubleshooting...................... 37
Synthesizer .................................................................................................................39
General instructions for Synthesizer troubleshooting ............................................. 39
26 MHz Reference Oscillator ( VCXO )................................................................. 39
VCO ........................................................................................................................ 41
Fault finding chart for PLL Synthesizer.................................................................. 41
Measurement points for the PLL............................................................................. 42
Frequency lists......................................................................................................... 45
Alignment ..................................................................................................................47
NHM-8NX manual align with Phoenix .................................................................. 47
RX calibration ............................................................................................................47
RX channel select filter .............................................................................................49
RX Band Filter Response ..........................................................................................50
Tx Power tuning ........................................................................................................51
TX power tuning GSM............................................................................................ 52
TX power tuning PCN............................................................................................. 55
I/Q tuning ...................................................................................................................57
RF control ..................................................................................................................59
Call testing .................................................................................................................60

List of Figures

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CCS T echnical Documentation Troubleshooting Instructions
Page No
Fig 1 Receiver signal path ...................................................................................................19
Fig 2 Transmitter signal path...............................................................................................20
Fig 3 Synthesiser..................................................................................................................21
Fig 4 Key component location.............................................................................................22
Fig 5 Power supply configuration........................................................................................23
Fig 6 Supply points at UEM (D200)...................................................................................24
Fig 7 Supply point at Mjoelner (N600) ...............................................................................24
Fig 8 EGSM Receiver fault finding chart............................................................................26
Fig 9 RX900 I/Q signal waveform ......................................................................................27
Fig 10 GSM1800 receiver fault finding chart......................................................................29
Fig 11 RX1800 I/Q signal waveform ..................................................................................30
Fig 12 RX measurements point at the RX/TX Switch - Z700.............................................31
Fig 13 Measurements points at the RX-Filters – Z601/Z602 ..............................................31
Fig 14 RX I/Q Signals, Baseband shielding can UEM (D200)...........................................32
Fig 15 TX measuremnet points in the PA ( N700 ) shielding can.......................................32
Fig 16 EGSM900 transmitter fault finding chart.................................................................35
Fig 17 VPCTRL_G & TXC.................................................................................................36
Fig 18 GSM1800 transmitter fault finding chart .................................................................38
Fig 19 VPCTRL_P & TXC ................................................................................................39
Fig 20 VCXO 26 MHz waveform .......................................................................................40
Fig 21 PLL fault finding chart .............................................................................................41
Fig 22 Measurement point for VCXO supply .....................................................................42
Fig 23 Measurement point for VCXO output......................................................................43
Fig 24 Measurement point for PLL .....................................................................................43
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Troubleshooting Instructions CCS Technical Documentation

Introduction

This document contains the Popeye fault finding charts. Furthermore it includes the baseband testpoint guide. This document is based on the PIPPI troubleshooting docu­ment.
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CCS T echnical Documentation Troubleshooting Instructions

Baseband Testpoints

J416
EXTWRX
J419
FLSCLK
J420
FLSCSX
J417
EXTRDX
J418
FLS2CSX
J414
DBUSDA
J402
PURX
J415
DBUSEN1X
J404
SLEEPCLK
J408
CBUSENX
J406
CBUSCLK
J407
CBUSDA
PIN 6
SIM I/O
PIN 4 GND
PIN 3 VSIM
PIN 2
RST
PIN 1
CLK
J425
RFCLK
J601
RXQP
J412
FBUSRX
J411
FBUSTX
J601 RXIM
C156
MIC2P
C155
MIC2N
C218
VIO
J409
MBUSTX
J410
MBUSRX
J603
RXQM
J413
DBUSCLK
J405
UEMINT
J600 RXIP
C231
VREFRF01
C225
VR6
C227
VR3
C226
VR5
C223
VR2
C224
VR7
C208
VCORE
C206
VANA
C205
VFLASH1
R183/1
HFCM
C157
HEADINT
R183/2
HF
PRODTP6
VPP
PRODTP2
FBUS TX
J150
HOOKINT
R310
KLIGHT
R166
MICB2
R164
MIC1P
R165
MICB1
R164
MIC1N
PRODTP7
MBUS
PRODTP3
FBUS RX
R161/1
EARP
R161/2
EARN
C100
VCHARIN
V1.0
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Fault Finding Charts

In this section, fault finding charts are provided for the most common Popeye errors.
NOTE: Since both D200 (UEM) and D400(UPP) is underfilled, they can not be replaced. If either D200 or D400 is defective, the whole PWB has be discarded.
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CCS T echnical Documentation Troubleshooting Instructions

Phone is dead

It is assumed that the voltage supplied is 3.6 VDC. The UEM will prevent any functional­ity what so ever at battery/supply levels below 2.9 VDC
Phoneisdead
Yes
X101
VBAT = 3,6VDC
Yes
Z261, C261, Z264,
C264
Voltage = 3,6VDC
Yes
S300
Pin1&3isHIGHwhen
power-key is untouched
Yes
S300
Pin 1 & 3 is 0VDC(LOW)
when power-key is pressed
Yes
J404
Sleep-clock is
32.768 kHz, 1,8Vpp
Yes
J402
PURX = 1,8VDC,
1 sec. after power-key
is pressed
Yes
No
No
Z261, C261, Z264, C264
No
No
No
B200, C209, C210, PWB.
No
Check :
X101
Check :
Check :
R317, C310
Check :
S300, PWB
Check :
Else def ective D200*
Check :
PWB.
Else def ective D200*
C227
VR3 = 2,78VDC
Yes
J425
26 MHz clock min.
300mVACpp,
probe Cin=10-13 pF/10M
Yes
Check :
D450 + D452.
Else defective D200*
No
No
Check :
C227, PWB.
Else def ective D200*
Check :
C227, PWB.
Else def ective D200*
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Troubleshooting Instructions CCS Technical Documentation

Flash programming does not work

The flash programming can only be done via the pads on the PWB (J100).
In case of Flash failure in FLALI station, problem is most likely related to SMD problems. Possible failures could be short-circuit of balls under µBGAs (UEM, UPP, FLASH). Missing or misaligned components.
In flash programming error cases the flash prommer can give some information about a fault. The fault information messages could be:
- Phone does not set FBUS_TX line low
Because of the use of uBGA components it is not possible to verify if there is a short cir­cuit in control- and address lines of MCU (UPP) and memory (flash).
Flash prgramming
do not work
Error from prommer:
"Phone doesn't set FBUS_TX line low"
Yes
J100, R108
Check connection between
pad 1,2 & 3 on J100
and R108
Yes
J409, J410, J411, J412
Voltage level at 1,8VDC
Yes
Try reading MCU ID
with Phoenix.
Reading OK?
Yes
Try reading Flash ID
with Phoenix.
Reading OK?
No
No
No
No
Check :
R108, PWB
Check :
PWB.
Else defective D200*
Check :
PWB.
Else defictive D400*
Check :
Replace D450 / D452
Yes
Reflash phone
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CCS T echnical Documentation Troubleshooting Instructions

Power does not stay on or phone is jammed

If this kind of failure is presenting itself immediately after FLALI, it is most likely caused by ASICs missing contact with PWB.
If for some reason the MCU does not service the watchdog register within the UEM, the operations watchdog will run out after approximately 32 seconds. Unfortunately, the service routine cannot be measured.
Power doesn't stay on,
or phone is jammed
J404
Sleep clock = 32.768 kHz,
1.8Vpp
Yes
J402
PURX = 1,8VDC,
1 sec. after power-key is
pressed
Yes
UI functionality,
and keys react
to pressure?
Yes
J425
26 MHz clock min.
300mVACpp,
probe Cin=10-13 pF/10M
Yes
Reflash phone
No
B200, C209, C210, PWB.
No
No
No
Check :
Else defective D200*
Check :
PWB.
Else defictive D200*
Check :
D450/D452, Keymat,
Lightguide, PW B.
Else defective D400*
Check :
C420, C426, R420,
R426, N600(Mjoelner)
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Troubleshooting Instructions CCS Technical Documentation

Display information: "Contact Service"

This error can only happen at power up where several self-tests are run. If any of these test cases fail, the display will show the message: "Contact Service".
The individual test cases are individual so the below line-up of error hunting has no chronological order. Use common sense and experience to decide which test case to start error hunting at.
Display shows
"Contact Service"
Yes
AuxDa & UEMInt
SleepX & SleepClk
between UPP & UEM?
TXI/QD&RXI/QD?
SIM interface between
EarDa & MicDa
between
UPP and UEM?
MBUS interface
between
UPP and UEM?
between
UPP and UEM?
UPP & UEM
Key is stucked
No
R205
Check R205
(no short/open-circuit)
Check :
A-cover, Keymat, Lightguide,
PWB.
Check :
PWB.
Else defective D200*
or D400*
Error still present
Flash checksum
ASIC version vs. compilation flag, PMM checksum PMM validity Warrenty In formation State SIM-Lock
Reflash phone
Check :
PWB.
Else defectiveD450 / D452
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CCS T echnical Documentation Troubleshooting Instructions

The phone does not register to the network, or the phone cannot make a call

If the phone does not register to the network, the fault can be in either BB or RF. Only few signals can be tested since several signals are 'buried' in one or more of the inner layers of the PWB.
First of all check that SIM LOCK is not causing the error by using a Test-SIM card and connect the phone to a tester.
Phone do not register to
or phone cannot make a call
network
C223, C224, C225, C226,
C227
Voltage = ~2,78VDC
All during GSM frame-
call mode.
Use TXP on C646 as trigger
Yes
C231
Voltage = ~1,35VDC
All during GSM frame (call mode)
Use TXP on C646 as trigger
Yes
J608, J609, J610
Check RF serial bus during
GSM-frame :
Logic HIGH = 1,8VDC
Logic LOW = 0VDC
RFBUSCLK (J608),
RFBUSDA (J609),
RFBUSEN1X(J610)
Yes
J600 - J603
Check analog signals during
GSM-frame (RX slot):
RXIP/RXIM (J600/J601)
0-1,45VDC
RXQP/RXQM (J602/J603)
0-1,45VDC
Yes
R610, R611
Check analog signals during
GSM-frame (TX slot):
TXIP/N (R610) = 1-1,75VDC
TXQP/N (R611) = 1-1,75VDC
Yes
C223, C224, C225, C226,
No
No
No
No
No
C227,PWB.
Else defectiveD200 or D400*
C231,PWB.
Else defective
D200* or D400*
Else defectiveD200*
Else defectiveD200*
R610, R611,PWB.
Else defectiveD200*
Check :
Check :
Check :
PWB.
or D400*
Check :
PWB.
or D400*
Check :
or D400*
Check RF
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Troubleshooting Instructions CCS Technical Documentation

SIM related faults

Insert SIM card fault

The hardware of the SIM interface from UEM (D200) to the SIM connector (X387) can be tested without a SIM card. When the power is switched on the phone first check for a 1,8V SIM card and then a 3V SIM card. The phone will try this four times, where after it will display”Insert SIM card”.
Displayshows:
"Insert SIM Card"
Yes
X387
Verify that phone checks for 1,8V-SIM,and then 3V-SIM
during power-up.
(See illustration below)
Yes
SIM Interface OK
No
Check :
X387, R386, PWB.
Else defective D200*
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CCS T echnical Documentation Troubleshooting Instructions

SIM-Card rejected

The error ”SIM card rejected” means that the ATR message received from SIM card is cor­rupted, e.g. data signal levels are wrong. The first data is always ATR and it is sent from card to phone.
Displayshows:
"SIM Card Rejected"
Yes
X387
VSIM = min. 1,6V(1,8V Card)
VSIM = min. 2,8V(3V Card)
(Seeillustration below)
Yes
X387
ATR data can be seen at
SIM data pin.
Yes
SIM Interface OK
No
No
Check :
R386, PWB.
Else defective D200*
Check :
X387, R386, PWB.
For reference a picture with normal SIM power-up is shown below.
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Audio related faults

Earpiece do not work
Replace :
Earpiece
Error still present
Z150, R161
Check Z150, R161 is
working correctly
(no short/open-circuit)
Yes
Defective D200*
No
Check :
PWB.
Else defective D200*
Microphone do not work and
there isn't any mechanical
problem
C103, Z100
Check C103, Z100 is
working correctly
(no short/open-circuit)
Replace :
System Connoctor
Error still present
R165
Check voltage level on
R165 towards UEM (bias)
=2,1V
Yes
R153
Check voltage level on
R153 towardsmic-lines (bias)
= 1,0V - 1,4V
No
No
No
Replace :
C103 and/or Z100
Check :
R165, C168, PWB.
Else defctive D200*
Check :
R153, R157,C151, C152,
C153, C154, PWB.
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CCS T echnical Documentation Troubleshooting Instructions
Headset earpiece do not
work and there isn't any
mechanical problem
R183, Z102
Check R183, Z102 is
working correctly
(no open-circuit)
Defective D200*
Headset microphone do not
work and there isn't any
mechanical problem
R166
Check voltage level on R166
towards UEM (bias) = 2,1V
Yes
R151
Check voltage level on R151
towards UEM (bias)
= 1,0V - 1,4V
Yes
No
No
No
Replace :
C183 and/or Z102
Replace :
D200*
Check :
R166, R151, C171
R152, R156, R168, C155, C156, C172, C170, C173, C174,
Z101
CheckXMIClinetoUEM
(D200)
Error still present
Defective D200*
No
Replace :
Defective component
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Charging failure

Phone is OFF - battery is
completely empty
(<=3,1VDC)
and no current from
charger when connected
L100
VCHAR > 2,1VDC
Yes
Defective D200*
Phone is ON or OFF - battery
nominal voltage (~3,6VDC)
and no current from
charger when connected
L100
VCHAR > 3,6VDC
Yes
No
R200, System-connector.
No
F100, L100, V101, C100, R200, System-connector.
Check :
F100, L100, V101, C100,
Check :
Defective
D200 or D400*
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CCS T echnical Documentation Troubleshooting Instructions
Display info when
charger is connected :
"Not charging"
R206
Voltage on R206 towards
D200 is ~0,8VDC
when power is connected.
(BSI must be 75K)
Yes
No
Check :
X101, R202, R206, C240.
Voltage (use scope) on R207
D200 same as VBAT voltage
R207
towards D200 is ~0,9VDC at
peak.
(BSI must be 47K)
Yes
R200
Voltage on R200 towards
Yes
R200
Voltagerisesslowlyon
R200 towards D200 when
charger is connected.
Yes
Check :
PWB
No
X101, R202, R207, C220.
No
No
Else defective D200*v
Check :
Check :
R200, PWB.
Check :
PWB.
Else defective D200*
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Troubleshooting Instructions CCS Technical Documentation

RF Troubleshooting

Two types of measurements are used in the following. It will be specified if the measure­ment type is "RF" or "LF".
RF measurements should be done with a Spectrum Analyser and a high-fre­quency 500 ohm passive probe, for example HP54006A. (Note that when mea­suring with the 500 ohm probe the signal will be around 20 dB attenuated. The values in the following will have these 20 dB subtracted and represent the real value seen on the spectrum analyser).
Note that the testjig have some losses which must be taken into consideration when calibrating the test system.
LF (Low frequency) and DC measurements should be done with a 10:1 probe and an oscilloscope. The probe used in the following is 10MOhm/8pF passive probe. If using another probe then bear in mind that the voltages displayed may be slightly different.
Always make sure the measurement set-up is calibrated when measuring RF parameters on the antenna pad. Remember to include the loss in the module repair jig when realigning the phone.
Most RF semiconductors are static discharge sensitive. So ESD protection must be taken during repair (ground straps and ESD soldering irons). Mjoelner is moisture sensi­tive so parts must be pre-baked prior to soldering.
Apart from key-components described in this document there are a lot of discrete com­ponents (resistors, inductors and capacitors) for which troubleshooting is done by check­ing if soldering of the component is done properly and checking if the component is missing from PWB. Capacitors can be checked for short-circuiting and resistors for value by means of an ohmmeter, but be aware in-circuit measurements should be evaluated carefully.
In the following both the name EGSM and GSM900 will be used for the lower band and both PCN and GSM1800 will be used for the upper band.

General description of the RF circuits

In the following general descriptions different colours are used in the block diagram. The GSM 900 signal route is shown in red, the GSM1800 route in green and the common sig­nal lines are shown in blue. Signal lines which is common for both
Receiver signal path
The signal from the antenna pad is routed to the RX/TX switch ( Z700). If no control volt­age is present at VANT2 and VANT1 the switch works as a diplexer and the GSM900 sig­nal is passed through the RX/TX switch to GSM-RX and the GSM1800 signal is passed to DCS-RX.
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