Text preview for : 9-npl-1.pdf part of Nokia 6310i Service Manual Gsm Telephone - Part 1/6 - File 18



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Phone is dead Yes L260 towards SIM connector, VBAT = 3.6 VDC Yes L261 towards C261, L262 towards C262, L265 towards C265 voltage = 3.6 VDC Yes Pin 2 and 4 on S300 = 0 VDC when powerkey pressed Yes Sleep clock on J404 ~32.768 Hz, 1.8 Vpp Yes PURX = 1.8 VDC on J402 or V130 (Bluetooth module) pin44 ~1 sec. after power key is pressed Yes No Check: D200, PWB Check: B200,C209,C210, D200,PWB Check: S300, PWB Check: L261,L262,L263, C261,C262,C265 Failure in VBAT line, check: X101, X102

No

No

No

No

VR3 ~2.78 VDC on C295 towards D200 (UEM)

No

Check: D200,C295,PWB

Yes 26 MHz clock min 300 mVACpp on R425 towards D200 with regular probe Cin ~10-13 pF/10M Yes Check: D400 (UPP),D450 (FLASH) Check: R425,C425 (Mjoellner)

No

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Flash programming

Flash programming doesn't work

If fault information from Prommer is: Phone doesn't set FBUS_TX line low Yes Check the connections: X100 p11 - R101 X100 p12 - R104 X100 p13 - R100 Connection ok? Yes Try reading MCU ID with Phenix Reading ok? Yes No Replace either UEM or UPP

No Solder / replace faulty component

Try reading Flash ID with Phenix reading ok? Yes

No Replace Flash

Flash again

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Power doesn't stay on or phone is jammed Yes Sleep clock on J404 ~32.768 Hz, 1.8 Vpp Yes PURX = 1.8 VDC on J402 or (V130 Bluetooth module) pin44 ~1 sec. after power key is pressed Yes UI functionality and keys react to pressure Yes 26 MHz clock min 300 mVACpp on R425 towards D200 with regular probe Cin ~10-13 pF/10M Yes TBA Check: R425,C425 (Mjoellner) Check: D400,D450,Z300, Keymat, Lightguide,PWB Check: B200,C209,C210, D200,PWB

No

No

Check: D200,PWB

No

No

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Phone doesn't register to network or phone doesn't make a call Yes

C292 towards D200 (UEM) ~4.75 VDC C294 towards R308 ~2.78 VDC C295 towards UEM ~2.78 VDC C296 towards V310 ~2.78 VDC C297 towards UEM ~2.78 VDC C298 towards R307 ~2.78 VDC C299 towards V310 ~2.78 VDC C288 towards R306 = 1.35 VDC C289 towards UEM = 1.35 VDC all during GSM frame. Use TXP on J701 Yes Check RF serial bus: RFBUSCLK on J421 RFBUSDA on J422 RFBUSEN1X on J423 Transitions "1" <-> "0", 1.8 VDC <-> 0 VDC during GSM frame Yes Check analog signals during GSM frame (Tx slot): TXIOUTP and TXIOUTN on C715 DC level = 1-1.25 VDC TXQOUTP and TXQOUTN on C716 DC level = 1-1.25 VDC Yes

No

Check: D200, D400,PWB

No

Check: D400,PWB

No

Check: D200,D400, PWB, RF

Check analog common mode signals during GSM frame (Rx slot): See RF trouble shooting No

RF troubleshooting

Yes Check RF

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SIM Fault

Measure VSIM at X386. Is it 3V? Yes Check SIM power-up sequence

No

Check SIM reader X386

Measure VSIM at C302. Is it 3V? Yes

No

UEM FAILURE

Replace R388

VSIM

Reset

Clock

Data

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Display Fault

Is display working

No

Change display module

Yes Is display working No

Yes Measure Vflash1 is 2,78V Yes No

Turn phone off and ohm measure between Vflash1 and ground. ~46k ohm UEM FAILURE

0 ohm

Check C239, C279, C304, C309, C350 R174, R202 and R352. OK

Measure Vio is 1,8V Yes

No

Turn phone off and ohm measure between Vio and ground. ~510k ohm

0R

Check C207, C218, C303, C404, C405, C450, C451 and R173. OK

UEM FAILURE

Measure Vout at C302 is ~10,7V

No Check C302 OK

Yes END UPP FAILURE

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Keypad fault

Power Key OK?

No

Voltage on S300 approx = Vbat

No

Check C312 and Z300 If Ok -> UEM fail

Yes

Yes

Voltage on S300 while pressed approx = Vbat

No

Phone jammed

Yes

S300 ok ?

No

Change S300

Yes
Keypad fault 2 Phone dead

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Keypad fault 2

Volume UP key OK?

No

Check S301 with Ohmmeter S301 short?

No

Replace S301 If still fail

Yes

Yes

Replace Z300 If still fail-> UPP failure

Volume DOWN key OK?

No

Check S302 with Ohmmeter S302 short?

No

Replace S302 If still fail

Yes

Yes

Replace Z300 If still fail-> UPP failure Keypad fault 3

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Keypad fault 3

PAMS Technical Documentation

Keyboard OK?

No

Replace light guide OK now?

No

Replace Z300 if still fail -> UPP failure

Yes

Yes

END

END

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Audio faults
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Earpiece doesn't work and there isn't any mechanical problem

Microphone doesn't work and there isn't any mechanical problem

Replace Microphone Replace Earpiece Ok Check L158, R171 (and Check R171 (and C150 and R156 for Shortcircuit) Ok UEM FAILURE (D200) Ok Ok R150 towards UEM (bias) = 2.1V Yes R151 towards miclines (bias) = 1.01.4 V Yes Check MIC line to UEM: L155, R153,C156, C155, R151, C154, R152 Ok UEM FAILURE (D200) No Check R150, R151, V158, C151, C153, C152 No UEM FAILURE (D200)

Headset microphone doesn't work and there isn't any mechanical problem

Ok R162 towards UEM (bias) = 2.1V Yes R163 towards miclines (bias) = 0.81.4 V Yes Check XMIC line to UEM: L168, R167, C168, C167, C166, C165, R166, C164, R165

No UEM FAILURE (D200)

No

Check R162, R163, V151, C160, C162, C161

Ok UEM FAILURE (D200)

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Headset earpiece doesn't work and there isn't any mechanical problem

With headset connected, measure C177 and C178 towards UEM - DC level 0.8V. Press keypad tone 5 and measure with oscilloscope. An AC signal pressents. OK Measure C158 towards N150 with an oscilloscope. Same AC signal present (higher level). OK Measure R179 towards UPP - DC level > 1.5V OK Check L150, R183, C158 (and C159, R161 for Shortcircuit) OK Check R176, C179, R177, R178, R180, C176, C177 and C178.

Not OK UEM FAILURE

Not OK

BOOMER FAILURE

Not OK

UPP FAILURE

Buzzer doesn't work and there isn't any mechanical problem

Vibra doesn't work and there isn't any mechanical problem

Check vibra Replace Buzzer Ok Check L307, C307, C308 UEM FAILURE (D200) Ok UEM FAILURE (D200) Ok

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Phone is off - battery is completely empty (~3.1 VDC) and no current is drawn from charger when connected Yes VCHAR > 2.1 VDC on L100 towards C107 Yes D200 UEM is faulty No Check: F100, L100, V101, C107

Phone is on or off - battery has norminal voltage 3.6 VDC and no current is drawn from charger when connected Yes VCHAR > 2.1 VDC on L100 towards C107 Yes Check: D200, D400 No Check: F100, L100, V101, C107

Display information when charger connected: "Not charging" Yes Voltage on R240 towards D200 (UEM) ~0.8 VDC when power is connected. BSI value must be 39K (BPS-2, BLS-2) Yes Voltage (Use Scope) on R220 towards D200 (UEM) ~0.9 VDC at peak. BTEMP value must be 47K. Yes Voltage on R200 towards D200 (UEM) same as VBAT voltage Yes Voltage slowly rises on R200 towards D200 (UEM) when charger is connected Yes Check: PWB Check: D200, PWB Check: R200, D200 Check: X102,R202,R220, C220 Check: X101, R202,R240,C240

No

No

No

No

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No BT air connection No

Antenna open circuit Yes Faulty PWB

V130 bad soldering

No

Replace module V130

No BT audio connection J143 USARTTx = 1,8V Data Yes J144 USARTRx = 1,8V Data Yes Faulty PWB No V130 bad soldering No Replace module V130 No V130 bad soldering No Replace module V130

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RF Fail The problem is most likely RF related if the following conditions are fulfilled. · Module can be flashed and BER Test can be initiated. · BER is above limit or no connection to BT-Box

Visual soldering inspection

Not OK

Re-solder

2.
Measure SYSCLK (V130 P50) 0.3 ... 0.8Vpp Reference: 11pF probe. Note: The measured result can depend very much on the probe type. Tip: If nessesary, measure a known good prototype with the same probe. NO See RF troubleshooting document

YES Measure Vreg 2.8 volts (V130 P6) YES Replace MCM NO Check VFLASH1 & L133

Re-flash BT only

Test points can be seen in the document "Baseband testpoints".

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