Nokia 3360, 3361 Service Manual 09Trouble

Programmes After Market Services

NPW-1 Series Transceivers

T roubleshooting Instructions

Issue 1 10/01 ãNokia Corporation

NPW-1

Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

Page No

Troubleshooting Instructions ..........................................................................................1

Transceiver Troubleshooting ......................................................................................... 4

Baseband Troubleshooting ..........................................................................................4

General about testing................................................................................................. 4

Troubleshooting ........................................................................................................ 4

Power up faults.......................................................................................................... 5

Flash Programming does not work.......................................................................... 10

Charging.................................................................................................................. 12

Audio failures.......................................................................................................... 13

Accessory detection................................................................................................. 15

Sleep Clock ............................................................................................................. 16

Display/Keyboard lights do not work ..................................................................... 18

Display does not work............................................................................................. 19

Buzzer does not work.............................................................................................. 20

Vibra does not work................................................................................................ 20

Keyboard does not work ......................................................................................... 20

Infrared does not work ............................................................................................ 21

Receiver Troubleshooting ..........................................................................................22

General instructions for RX troubleshooting.......................................................... 22

Path of the received signal ...................................................................................... 22

Fault finding charts for receiver chain .................................................................... 22

Transmitter Troubleshooting .....................................................................................28

General instructions for TX troubleshooting .......................................................... 28

Path of the transmitted signall................................................................................. 28

Fault finding charts for the transmitter.................................................................... 29

Synthesizer Troubleshooting .....................................................................................35

19.44 MHz reference oscillator............................................................................... 35

RX VHF VCO......................................................................................................... 36

TX VHF VCO......................................................................................................... 37

UHF SYNTHESIZER............................................................................................. 38

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PAMS Technical Documentation Troubleshooting Instructions

List of Figures

Page No

Fig 1 Power up sequence .....................................................................................................7

Fig 2 Fault tree, phone does not power up...........................................................................9

Fig 3 Fault tree, charging.....................................................................................................13

Fig 4 Fault tree, earpiece fail ...............................................................................................14

Fig 5 Fault tree, microphone fail .........................................................................................15

Fig 6 Fault tree, accessory detection....................................................................................16

Fig 7 Fault tree, sleep clock.................................................................................................17

Fig 8 Fault tree, Display/Keyboard lights............................................................................18

Fig 9 Fault tree, Display does not work...............................................................................19

Fig 10 Fault tree, infrared ....................................................................................................21

Fig 11 Fault tree. AMPS......................................................................................................23

Fig 12 Fault tree: TDMA1900 troubleshooting...................................................................26

Fig 13 Fault tree. Transmitter troubleshooting....................................................................30

Fig 14 TDMA1900 troubleshooting ....................................................................................32

Fig 15 Fault tree: Power control loop..................................................................................34

Fig 16 Detected voltage levels.............................................................................................35

Fig 17 Fault tree: 19.44 MHz oscillator...............................................................................36

Fig 18 Fault tree: RX VHF VCO.........................................................................................37

Fig 19 Fault tree: TX VHF VCO.........................................................................................38

Fig 20 Fault tree: UHF Synthesizer.....................................................................................39

Issue 1 10/01 ãNokia Corporation Page 3

NPW-1

Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

Transceiver T roubleshooting

The first thing to do when you are encountered with a problem is to carry out a thorough visual check of the module. Make sure that:

• there are no mechanical damages

• the solder joints are OK

Note: Before changing anything, ALL SUPPLY VOLTAGES AND THE SYSTEM CLOCK / SLEEP CLOCK should be checked.

Baseband Troubleshooting

General about testing

The phone has three different modes for testing and/or r epairing the phone. The modes can be selected with suitable resistors connected to BSI- and BTEMP- lines as illustrated in the table below:

Table 1: Phone operating mode

Mode BSI-resistor BTEMP resisto r Remarks

Normal 68k 47k Local 560_

(<1k_)

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

Whatever

mode, but making a phone call is possible.

If the corresponding resistors are connected, the MCU software automatically enters into the local or test mode when the supply voltage is connected to the phone.

The power can be switched on by:

1 Pressing the power key. 2 Connecting the local/test mode resistors to the bsi/bt emp lines and connecting

the battery voltage to the phone. 3 Connecting a charger. 4 Phone’s internal functions (Real time clock alarm)

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

Troubleshooting

Note: Most of the baseband repair actions require removing the baseband shield.

The shield must not be removed unless separately authorized by the program.

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PAMS Technical Documentation Troubleshooting Instructions

Note: The phone’s ESN has to re-written to the UEM, if the UEM is replaced. This

can be done only in Central Service.

The BB troubleshooting instructions consist of the following topics:

1Power up 2 Flash programming 3Audio

• Earpiece

• Microphone 4 Charging 5 Accessory detection 6Sleep clock 7 User interface

Power up faults

Power up sequence

•Display

• Lights

• Buzzer

•Vibra

• Keyboard

8 Infrared

1 The UEM acts as a HW master during start up

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

• Regulator sequencing

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

• These regulators supply the processors, memory, chip interfaces and clock source in RF

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Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

• Reset releasing delay

• Supply voltages stabilize to their UEM HW def ault values

• RFCLK grows to full swing

• The core is ready to run but waiting for the PURX release

• Reset releasing

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

2 MCU starts running the Bootsrap Code

• written in stone/ UPP internal ROM

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

• If there is an executabl e code in FLASH and there is no r eason for FDL, the MCU starts running the MCU program from FLASH.

3 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 figure below, the RF_Clk frequency appears to be lower than 19.44MHz

because of a too low oscilloscope sampling frequency (2kS/s).

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PAMS Technical Documentation Troubleshooting Instructions

Figure 1: Power up sequence

1 Powe r key presse d

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

• VFLASH1, Vana, Vcore, Vio and VR3 goes high.

• VCTCXO enabled by VR3 -> RFClk 19.44 MHz running.

2 Purx released

• Purx released by UEM, UEMINT goes high for 100 ms, SleepX goes high and UEM starts feeding SleepClk (32 KHz) to UPP.

Note: The sleepclock starts running in the crystal circuitry (B200) immediately when

the battery voltage is supplied.

3 Software running

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

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Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

• Cbus (1.08MHz) clock starts running.

Phone does not start up normally or does not stay on

Note: In case of power up faults, it is not possible to force the phone on by disabling

the watchdog. Instead, measurements should be taken immediately when the power key is pressed or when the battery voltage is connected to the phone (local/test mode).

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

The Dbus clock (programmable 9.72MHz) is not automatically visible in the test and local modes.

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PAMS Technical Documentation Troubleshooting Instructions

Figure 2: Fault tree, phone does not power up

Check 19.44MHz

RF-clock from C420

Try to start phone to

test or loc a l mode

FAIL

Measure

Vflash1,Vana,Vio,Vcore

,VR3when pwr key

pressed

VANA & VR3 missing

Check G790

(missing,

misaligned)

FAIL

Check

C420

Check

19.44MHz from G790

FAIL

Check

R792,C792,

C793

Check the

power key

Check R202,

R205, C217,

C220

Check X101

FAIL

Measure VBAT

from C261

Check that purx goes up to 1.8V

Measure

J406. Should

be 1.08 MHz

Change UPP

(D400)

FAIL

Change N801

FAIL

Re-flash phone

Programmng ok, but phone doesn't start

Change

G790

Change the UEM (D200)

Programming fails

Go to flash failur e

chart

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Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

Flash Programming does not work

Flash programming procedure

1 The phone communicates with the prommer via the production test pattern,

using the following signals:

• FBUSTX(serial data to phone)

• FBUSRX(serial data from phone)

• MBUS(serial clock for FBUSRX)

• VPP(External flashing voltage for speed up flashing)

• The BSI line is also used when initializing flashing (battery connector).

2 When the phone is powered (VBAT>3V), the MBUS and FBUSTX lines a re pulled

up internally by the phone.

3 The prommer sends a command to the UEM, using FBUSRX, to enter the Flash-

mode. During the sending of this co mmand, the prommer keeps the BSI line high and MBUS is used as a serial clock.

4 When the Flash-mode command is acknowledged, UEM enters the Flash-mode

and releases reset (PURX) to MCU.

5 After reset is released, UPP checks if there is a request for the Bootstrap code

(that resides in the UPP ROM).

6 The request for Bootstrap is the MBUS pulled down by the prommer (if the boot-

strap is not requested, the bootstrap code jumps to FLASH SW).

7 If the Bootstrap code is requested, UPP enters the Flash-mode and sets FbusTX to

'0' as an acknowledgement to the prommer. This is an indication that UPP can run, at least, the fixe d Bootstra p c ode – although it is not abl e to r un t he FLASH code. UPP then sends an UPP-ID to the prommer via the FBUSTX line.

8 After the prommer has received the UPP-ID, it send s a corresponding Secondary

Boot Code to the phone via FBUSRX. The Secondary Boot Code, when run in UPP, requests UPP to send information to the prommer about the flash type and other HW-related parameters about the device to be flashed.

9 Prommer then sends the Algorithm C ode corresponding to the HW parameters,

and this algorithm, when run in UPP, takes over handling the MCUSW transfer to Flash.

10 12 volts can be supplied to Vpp (by the prommer) to speedup flashing .

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PAMS Technical Documentation Troubleshooting Instructions

11 The FLASH Program includes a package of MCU and DSP software and all default

parameters for the phone. The tuning values will be adde d/rewritten during the Flash/Alignment phase.

Flash programming error codes

The various error codes can be seen from the "FPS-8 Flash" in Phoenix. The underlined text in the table be low means t hat t he it em unde r consider ati on is bei ng

used for the first time in the flashing sequence.

Table 2: Table 2. Flash pr ogr am min g er ror 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->UPP(MbusRx)(SA0)

C104 "MCU ID message sending failed in the

Phone."

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)

FbusRx from Prommer->UEM->UPP FbusTx from UPP->UEM->Prommer

FbusTx from UPP->UEM->Prommer

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

C10 7 "The Phone MCU can not start Secondary

code correctly."

A204 "The flash manuf acturer and device IDs in

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

phone." A387 "The MC U ID in the MCUSW. ” UPP C601 "The prommer has detected that Vpp volt-

age level has dropped below the limit"

UPP

Flash Signals between UPP-Flash

Vpp from prommer - >Flash

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Troub l esh oot ing Instructions PAMS Technica l Do cum en tation

C383 C583 C683

C384 C584 C684

C585 C685

C586 C686

Charging

Note: The charging voltage and current can be checked by connecting the phone to

"The Prommer has not received Phone

acknowledge to the message."

(C383-during algorithm download to tar-

get phone)

(C583-during erasing)

(C683-during programming)

"The Phone has generated NAK signal dur-

ing data block transfer."

(C384-during algorithm download to tar-

get 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

the service software and reading the ad- converter values of the vchar and ichar.

If charging fails when the ACP-9 or the LCH-9 is used, and works with ACP-7, ACP-8 and LCH-8, check that the charge control pin of the system connector is connected to the ground.

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+ 28 hidden pages

Nokia 3360, 3361 Service Manual 09Trouble

T roubleshooting Instructions

Table of Contents

List of Figures