Nokia 6340i Service Manual 9 rh 13 trouble

CCS Technical Documentation

RH-13 Series Transceivers

Troubleshooting

Issue 1 11/02 ãNokia Corporation

RH-13

Troubleshooting CCS Technical Documentation

Page No

Transceiver Troubleshooting ......................................................................................... 5

General about testing ...................................................................................................5

Phone operating modes ............................................................................................. 5

Measurement points .....................................................................................................6

Baseband Troubleshooting............................................................................................. 8

Power up sequence ......................................................................................................8

Phone does not start up normally or does not stay on............................................. 11

Flash Programming does not work.......................................................................... 12

Flash programming error codes............................................................................... 14

Charging ....................................................................................................................16

Audio failures ............................................................................................................16

Earpiece or external microphone line does not work.............................................. 18

Microphone or XEAR line does not work .............................................................. 19

Accessory detection ...................................................................................................20

Power supply for data cable .......................................................................................21

Sleep Clock ................................................................................................................21

Display/Keyboard lights do not work ........................................................................23

Display does not work ...............................................................................................24

Buzzer does not work.............................................................................................. 24

Vibra does not work ...................................................................................................25

Keyboard does not work ............................................................................................25

SIM does not work .....................................................................................................25

Infrared does not work ...............................................................................................26

RF troubleshooting....................................................................................................... 27

Repairing instructions for RF Unit ............................................................................27

Introduction............................................................................................................. 27

Abbreviations in fault finding chart ...........................................................................28

Receiver ....................................................................................................................... 29

General instructions for RX troubleshooting .............................................................29

Path of the received signal .........................................................................................30

AMPS........................................................................................................................... 31

Step 1. General checking ...........................................................................................32

Audio test ................................................................................................................ 33

Step 2. Local oscillator checking ...............................................................................34

Step 3. RX chain checking .........................................................................................35

TDMA800.................................................................................................................... 36

GSM850....................................................................................................................... 36

Step 1. General checking ...........................................................................................37

Step 2. Local oscillator checking ...............................................................................38

Step 3. RX chain checking .........................................................................................40

TDMA1900.................................................................................................................. 42

Step 1. Local oscillator checking ...............................................................................43

GSM1900..................................................................................................................... 46

Step 1. General checking ...........................................................................................48

Step 2. Local oscillator checking ...............................................................................48

Step 3. RX chain checking .........................................................................................51

Transmitter................................................................................................................... 53

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CCS Technical Documentation Troubleshooting

General instructions for TX troubleshooting .............................................................53

AMPS/TDMA......................................................................................................... 53

GSM850.................................................................................................................. 53

GSM1900................................................................................................................ 53

Path of the transmitted signal ....................................................................................53

AMPS/DAMPS, GSM850 ...................................................................................... 53

TDMA1900, GSM1900 .......................................................................................... 54

Fault finding charts for transmitter ............................................................................55

AMPS...................................................................................................................... 55

TDMA800, GSM850 .............................................................................................. 58

TDMA1900, GSM1900 .......................................................................................... 58

Power control loop .....................................................................................................61

AMPS AND TDMA................................................................................................ 61

GSM850/GSM1900 ................................................................................................ 62

Synthesizers ................................................................................................................. 63

19.2 MHz reference oscillator ...................................................................................63

RX VHF VCO ...........................................................................................................65

Fault finding chart for RX VHF VCO .................................................................... 65

BB PLL ......................................................................................................................66

Fault finding chart for BB PLL............................................................................... 67

TX VHF VCO ............................................................................................................68

Fault finding chart for TX VHF VCO..................................................................... 68

UHF SYNTHESIZER ...............................................................................................69

Description of RH-13 RF auto-tune tunings................................................................ 70

TDMA RF tunings .....................................................................................................70

TDMA RX tunings.................................................................................................. 70

TDMA TX tunings.................................................................................................. 71

GSM RF tunings ........................................................................................................72

GSM RX tunings..................................................................................................... 73

GSM TX tunings..................................................................................................... 74

PA TROUBLESHOOTING FOR SALIERI ...........................................................75

List of Figures

Fig 1 UEM regulator's filter capacitors................................................................................6

Fig 2 BB testpoints ..............................................................................................................7

Fig 3 Power up sequence .....................................................................................................10

Fig 4 Fault tree, phone does not power up...........................................................................12

Fig 5 Fault tree, charging ....................................................................................................16

Fig 6 Fault tree, earpiece fail ..............................................................................................18

Fig 7 Fault tree, microphone fail .........................................................................................19

Fig 8 Fault tree, accessory detection....................................................................................20

Fig 9 Fault tree, data cable...................................................................................................21

Fig 10 Fault tree, sleep clock...............................................................................................22

Fig 11 Fault tree, Display/Keyboard lights..........................................................................23

Fig 12 Fault tree, display ....................................................................................................24

Fig 13 Fault tree, infra red ...................................................................................................26

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Fig 14 Receiver block diagram............................................................................................30

Fig 15 RF Test .....................................................................................................................33

Fig 16 Audio Test ................................................................................................................33

Fig 17 RF Test. ....................................................................................................................34

Fig 18 Fault finding chart. ...................................................................................................36

Fig 19 General checking. .....................................................................................................37

Fig 20 GSM RSSI Measurement. ........................................................................................38

Fig 21 RX VHF VCO signal level and frequency...............................................................39

Fig 22 UHF VCO.................................................................................................................40

Fig 23 RF controls ...............................................................................................................40

Fig 24 RX I/Q signal............................................................................................................41

Fig 25 IF signal level ...........................................................................................................42

Fig 26 Fault finding chart. ...................................................................................................43

Fig 27 RF Test. ....................................................................................................................44

Fig 28 Fault finding chart ....................................................................................................46

Fig 29 GSM RSSI Measurement. ........................................................................................48

Fig 30 RF controls. ..............................................................................................................49

Fig 31 RX VHF VCO signal level and frequency...............................................................49

Fig 32 UHF VCO signal level and frequency......................................................................50

Fig 33 RF controls. ..............................................................................................................51

Fig 34 RX I/Q signal............................................................................................................51

Fig 35 IF signal level. ..........................................................................................................53

Fig 36 TX signal path. .........................................................................................................54

Fig 37 RF Test. ....................................................................................................................55

Fig 38 RF controls. ..............................................................................................................55

Fig 39 Fault finding chart ....................................................................................................56

Fig 40 TDMA1900. .............................................................................................................58

Fig 41 GSM1900. ................................................................................................................58

Fig 42 Fault finding chart ....................................................................................................59

Fig 43 Power detection. .......................................................................................................61

Fig 44 Fault finding chart for 19.2 MHz oscillator..............................................................64

Fig 45 Fault finding chart for RX VHF VCO......................................................................65

Fig 46 BB PLL.....................................................................................................................66

Fig 47 Fault finding chart for BB PLL. ...............................................................................67

Fig 48 Fault finding chart for TX VHF VCO......................................................................68

Fig 49 Fault finding chart for UHF SYNTHESIZER..........................................................69

Fig 50 Auto tune TDMA .....................................................................................................70

Fig 51 Auto-tune GSM ........................................................................................................72

Fig 52 Fault finding chart ....................................................................................................76

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CCS Technical Documentation Troubleshooting

Transceiver Troubleshooting

General about testing

Phone operating modes

Phone has three different modes for testing/repairing phone. Modes can be selected with suitable resistors connected to BSI- and BTEMP- lines as following:

Table 1: Mode selection resistors

Mode BSI- resistor BTEMP- resistor Remarks

Normal 68k 47k

Local 560_ (<1k_) What ever

Test 3.3k (> 1k) 560_ (<1k_) Recommended with baseband testing. Same as

local mode, but making a phone call is possible.

The MCU software enters automatically to local or test mode at start-up if corresponding resistors are connected.

Note! Baseband doesn't wake up automatically when the battery voltage is connected (normal mode). Power can be switched on by

• Pressing the power key

• connecting a charger

• RC-alarm function

In the local and test mode the baseband can be controlled through MBUS or FBUS (FBUS is recommended) connections by a Phoenix service software.

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VR6

VR4

VR2

VR7

VR3

VR1B

VR1A

VANA

VIO

VR5

Troubleshooting CCS Technical Documentation

Measurement points

Figure 1: UEM regulator's filter capacitors

COR

FLAS

UEM

VSIM

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UEMINT

PURX

DbusCLK

FbusRX

Dbu

sENX

MbusRX

MbusTX

UEM

FLASH

UPP

CCS Technical Documentation Troubleshooting

Figure 2: BB testpoints

RFCLK: Init clk

19.22MHz GSM 13MHz

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Troubleshooting CCS Technical Documentation

Baseband Troubleshooting

Note: ESN and IMEI has to re-written to phone If UEM is replaced. This can be done only in Central Service.

The Baseband Troubleshooting instructions consists of the following topics:

•Power up

• Flash programming

•Audio

•Earpiece

•Microphone

• Charging

• Accessory detection

• Data cable

•Sleep clock

• User interface

•Display

•Lights

•Buzzer

•Vibra

•Keyboard

•Infra red

• Power up faults

Power up sequence

UEM acts as a HW master during start up

• Vbatt limits: 2.1V for internal state machine, 3V triggering whole startup

• Regulator sequencing

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CCS Technical Documentation Troubleshooting

•Hw "core" regulators "on": Vio, Vcore, VR3, Vflash1

•These regulators are supplying the processors, memory, chip interfaces and

clock source in RF

• Reset releasing delay

•Supply voltages stabilize to their UEM hw default values

•RFCLK grows to full swing

•Core is ready to run but waiting for PURX release

• Reset releasing

•UPP releases the SLEEPX up to "non sleep" -state to prevent the UEM switching

the regulators "OFF"

MCU starts running the Bootstrap Code

•written in stone/ UPP internal ROM

•the program checks if there exists any reason for FDL mode (Flash Down Load)

•If there exists executable code in FLASH and there exists no reason for FDL, the MCU starts running the MCU program from FLASH.

MCU runs the FLASH MCU code

•the phone initialization, user interfaces, internal blocks etc

•Core regulator voltage setting for required DSP speed

•Initializes the DSP and concerning hw

•Releases DSP reset -> DSP starts running

Note: In the figure below RF_Clk frequency appears to be lower than 19.2MHz because of too low oscilloscope sampling frequency (2kS/s).

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Troubleshooting CCS Technical Documentation

Figure 3: Power up sequence

1 Power key pressed

• After 20ms UEM enters RESET MODE if VBAT>Vmstr+

2 2) VFLASH1, Vana, Vcore, Vio and VR3 goes high.

• VCTCXO enabled by VR3 -> RFClk 19.2 MHz running.

3 Purx released

• Purx released by UEM, UEMINT goes high for 100 ms and about

500ms RFCLK will change 13MHz (GSM mode), SleepX goes high and

UEM startsfeeding SleepClk (32 KHz) to UPP. NOTE! Sleepclock starts

running in crystal circuitry (B200) immediately when battery voltage is supplied.

4 Software running

• Default value for Vcore is 1.5 volts and if software is running Vcore will rise to 1.8 volts.

• Cbus (1.00MHz/GSM and 1.08MHz/TDMA) clock starts running.

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CCS Technical Documentation Troubleshooting

Phone does not start up normally or does not stay on

Note! In case of power up faults, it's not possible to force phone on by disabling watchdog. Instead, measurements should be done immediately when power key pressed or when battery voltage connected to phone (local/test mode).

The easist way to check if software is running when phone takes abnormal amount of current is to measure cbusclk and Vcore.

Dbus clock (programmable 9.72MHz TDMA, 13MHz GSM) is not automatically visible on test and local mode.

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Troubleshooting CCS Technical Documentation

Figure 4: Fault tree, phone does not power up

Check 13MHz /GSM

or 19.44/TDMA

RF-clock from C420

Tryto start phone to

testor local mode

FAIL

Measure

Vflash1,Vana,Vio,Vcore

,VR3 when pwrkey

pressed

VR3

missing

Check G801

(missing,

misaligned)

FAIL

Check

C420

Check 19.2MHz

from G801

FAIL

R816,C867,C8

66, R817, C868

Check

Check the

powerkey

Check R202,

R203, R205,

C217, C220

Check

X101,C108,

C109,Z101

FAIL

Measure VBAT

from C262

troubleshooting

Check that purx goes up to 1.8V

Measure J406.

1.08

MHz/TDMA

and

1.00MHz/GSM OK

Change UPP

(D400)

FAIL

Re-flash phone

Programmng ok, but phone doesn't start

Flash Programming does not work

See RF

Change

G801

Change the UEM (D200)

Programming fails

Go to flash failure

chart

Flash programming procedure

• Phone communicates with prommer via production test pattern, using signals:

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CCS Technical Documentation Troubleshooting

•FBUSTX(serial data to phone),

•FBUSRX(serial data from phone),

•MBUS(serial clock for FBUSRX)

•VPP(External flashing voltage for speed up flashing)

• Also BSI line is used when initializing flashing (battery connector)

• When phone is powered (VBAT>3V ) MBUS and FBUSTX lines are pulled up internally by phone.

• Prommer sends command to UEM, using FBUSRX, to enter Flash-mode. During the sending of this command prommer keeps BSI line high and MBUS is used as a serial clock.

• When Flash-mode command is acknowledged UEM enters Flash-mode and releases reset (PURX) to MCU.

• After reset is released UPP checks if there is a request for Bootstrap code (that resides in UPP ROM).

• Request for Bootstrap is MBUS pulled down by Prommer. (If bootstrap is not requested, bootstrap code jumps to FLASH SW.)

• If Bootstrap code is requested UPP enters Flash-mode and sets FbusTX to '0' as acknowledgement to prommer. This is an indication that UPP can run, at least, the fixed Bootstrap code – although not able to run FLASH code. UPP then sends an UPP-ID to prommer via FBUSTX line.

• After prommer has received UPP-ID it sends corresponding Secondary Boot Code to phone via FBUSRX. Secondary Boot Code, when run in UPP, requests UPP to send information to prommer about flash type and other HW related parameters about the device to be flashed.

• Prommer then sends the Algorithm Code and this algorithm, when run in UPP, takes over handling the MCUSW transfer to Flash.

corresponding to the HW parameters

• 12 volts can be supplied to Vpp (by prommer) to speedup flashing.

• FLASH Program includes a package of MCU and DSP software and all default parameters for the phone. The tuning values will be added/rewritten during Flash/Alignment phase.

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Troubleshooting CCS Technical Documentation

Flash programming error codes

Error codes can be seen from "FPS-8 Flash" in Phoenix.

Underlined note means that item under consideration is being used first time in flashing sequence.

Table 2: Flash programming error codes

Error Description Not working properly

C101 "The Phone does not set FbusTx line high after the

startup."

C102 "The Phone does not set FbusTx line low after the

line has been high. The Prommer generates this error also when the Phone is not connected to the Prommer."

C103 "Boot serial line fail." Mbus from Prommer->UEM-

C104 "MCU ID message sending failed in the Phone." FbusTx from UPP->UEM->Prommer

C105 "The Phone has not received Secondary boot codes

length bytes correctly."

C106 "The Phone has not received Secondary code bytes

correctly."

Vbatt Vflash1 Vcore VIO BSI and FbusRX from prommer to UEM. FbusTx from UPP->UEM->Prommer(SA0)

PURX(also to Safari) VR3 Rfclock(VCTCXO->Safari->UPP) Mbus from Prommer->UEM>UPP(MbusRx)(SA1) FbusTx from UPP->UEM->Prommer(SA1)

>UPP(MbusRx)(SA0) FbusRx from Prommer->UEM->UPP FbusTx from UPP->UEM->Prommer

Mbus from Prommer->UEM->UPP(MbusRx) FbusRx from Prommer->UEM->UPP FbusTx from UPP->UEM->Prommer

C107 "The Phone MCU can not start Secondary code cor-

rectly."

A204 " The flash manufacturer and device IDs in the

existing Algorithm files do not match with the IDs received from the target phone."

A387 "The MCU ID in the MCUSW UPP

C601 "The prommer has detected that Vpp voltage level

has dropped below the limit"

C383 C583 C683

"The Prommer has not received Phone acknowledge to the message." (C383-during algorithm download to target phone) (C583-during erasing) (C683-during programming)

UPP

Flash Signals between UPP-Flash

Vpp from prommer - >Flash

Flash UPP Signals between UPP-Flash

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CCS Technical Documentation Troubleshooting

C384 C584 C684

C585 C685

C586 C686

"The Phone has generated NAK signal during data block transfer." (C384-during algorithm download to target phone) (C584-during erasing) (C684-during programming)

Data block handling timeout" (C585-during erasing) (C685-during programming)

"The status response from the Phone informs about fail." (C586-during erasing) (C686-during programming)

Flash UPP Signals between UPP-Flash

Flash

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Troubleshooting CCS Technical Documentation

Charging

Note: Charging voltage and current can be checked by connecting phone to service software and reading ad- converter values of vchar and ichar.

Figure 5: Fault tree, charging

Phone doesn't start

charging

Connectchargerand

check VCHARIN,

check CHRG_CTRL

if used ACP-9,

LCH-8, LCH-9,

DCH-12, HFU-2

Fail

F100,L100,V100,C105

Check

, R107,C107

Check ICHAR

FAIL

Check

R202,R203,R205,C217,

C220,C201,C202 and

R200

Changethe

UEM

Check bottom

connector

-VIN

- CHRG_CTRL

Audio failures

In case of audio failures there are three possibilities to check audio lines.

1 Make a phone call against tester and check audios.

2 In case of earpiece/XMIC fail: Feed 1Khz signal to XMIC line and measure signal

from earpiece line. Audio test box JBA-8 is needed. Audio loop (Audio test/Ext In Hp Out) must be switched on by Phoenix service software. This loop will connect audios only through UEM. In this case UPP is not used.

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CCS Technical Documentation Troubleshooting

3 In case of internal microphone/XEAR fail: Feed tone to microphone and measure

signal from XEAR line. Audio test box JBA-8 is needed. Audio loop (Audio test/Hp In Ext Out) must be switched on by Phoenix service software. This loop will connect audios only through UEM. In this case UPP is not used.

4 Run audio- loop selftest with Phoenix (BB Self tests/ST_EAR_DATA_LOOP_TEST).

This loop will test the eardata/micdata lines between UPP and UEM.

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Troubleshooting CCS Technical Documentation

Earpiece or external microphone line does not work

Figure 6: Fault tree, earpiece fail

Earpiecedoesn't

work

Run audio-loop

selftest with

phoenix

Check R157,L152,

L158,C150,C164,

C153, C165,R152,

C156,C155,R164, R161,R153,R150,

C159,C167,V153

Check

earpiece

ChangeUEM

Fail

Feed 1KHz to Xmic

by JBA-8 and

measurefrom

earpiece

Fail

Change UPP

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CCS Technical Documentation Troubleshooting

Microphone or XEAR does not work

Figure 7: Fault tree, microphone fail

Microphone doesn't

work

Run audio-loop

selftest with

phoenix

Check C151,C152,C157,L151,C162, C168,C169,R156,R162,R166, R159,C154,C158,C161,C166,

R163,L159,V152

Check

microphone

ChangeUEM

Fail

Feed 1KHz to Mic

and measurefrom

Xear by JBA-8

Fail

ChangeUPP

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Troubleshooting CCS Technical Documentation

Accessory detection

• - Start phone to normal mode when checking accessory detection.

• - Ad- converter value of headint and hookint - lines can be checked with Phoenix ADC-reading.

• - When headset HDC-9 connected and headset push button is held down, headint- value should be between 10 and 50 and hookint- value between 0-30.

Figure 8: Fault tree, accessory detection

Accessory detection

doesn'tworknormally

Check HeadInt and

HookInt ad-value with

Phoenix

(No accessory

connected)

- HeadInt and HooInt ~1000

Fail

Check headint-line

L152,C150,R152,C153,

R154,

C160,R153,R150,C159

Check hookint-line

L159,R163,C158,R155,

R151,C161,V152

ConnectHDC-9 and keep the

HDC-9 switch close while

reading headint and hookint

ad-value.

Both values should go close to

zero (~0...50)

Fail

Calibrate ADC

and check accessory

detection again

Check bottom

connector

Change UEM

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CCS Technical Documentation Troubleshooting

Power supply for data cable

DLR-3 needs power supply for data transfering. SGND will supply 2.8V to DLR-3.

- Start phone to normal mode when checking DLR-3 detection

Figure 9: Fault tree, data cable.

DLR-3 data cable

doesn't work

Connect DLR-3,check

DLR-3 detection

Fail

Check the

componentsof XMIC, HEADINT and MICB2 lines

Check bottom

connector

Check VFlash2

(~2.8V)

Check SGND voltage from

bottomconnector

(2.40-2.90V)

Fail

Check V151,V152,R161,

C164,L158

Fail

Change UEM

Sleep Clock

Missing/non-functional sleep clock causes

• Entering sleep mode fails (higher current consumption -> shorter standby time)

• Baseband self tests cannot be run

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Troubleshooting CCS Technical Documentation

• Phone clock (on display) does not function properly

Figure 10: Fault tree, sleep clock

Sleep mode

not working

Measure sleep clock

from J404

Change UPP

(D400)

Fail

Measure sleep clock

from B200

ChangeUEM

(D200)

Fail

Check C203

&C204

Change B200

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CCS Technical Documentation Troubleshooting

Display/Keyboard lights do not work

Figure 11: Fault tree, Display/Keyboard lights

Display/Keyboard

lights are not working

Check R300 (Display)and

R301 (Keyboard)

Check LEDs

V300...V303,V310-V311

(Display)and V304...V309

(Keyboard)

Use Display Test in

Phoenix to set lights

ON/OFF

FAIL

Replace

resistor(s)

Replace

LED(s)

Replace UEM

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+ 53 hidden pages

Nokia 6340i Service Manual 9 rh 13 trouble

Troubleshooting

Contents

List of Figures

Transceiver Troubleshooting

General about testing

Phone operating modes

Measurement points

Baseband Troubleshooting

Power up sequence

Phone does not start up normally or does not stay on

Flash Programming does not work

Flash programming error codes

Charging

Audio failures

Earpiece or external microphone line does not work

Microphone or XEAR does not work

Accessory detection

Power supply for data cable

Sleep Clock

Display/Keyboard lights do not work