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Motorola Internal Use

V2288 – Circuit Description

right

FM_R

audio signal at

Pins 15 and 16

respectively from the

U1001

. These are

then fed to the

Stereo Audio IC U1500

FM Radio:

Stereo Audio IC U1500

The Stereo Audio IC (sometimes referred to as JAMS IC is basically a path selector for
audio and has 6 different modes of operation. For further information refer to the Stereo
Audio IC document.
The 6 modes of operation are:

Voice to Earpiece Speaker – As with other GCAP II products Speech audio will be
routed through the GCAP to

SPKR + and –

Voice to Mono Headset – GCAP II

SPKR+

will be disabled and the speech will be

routed from

SPKR –

VC_R_IN2

to drive

SPKR_R_OUT

. Left Channel will be

muted.

Voice to Stereo headset – As above

FM Radio to Earpiece Speaker – Signal routed from FM IC to JAMS, from

VC_LOUT1

of JAMS the signal will be sent to the Aux Mic I/P of the GCAP II,

within the GCAP the Codec is bypassed and both

SPKR +

and

–

are enabled. –

NOT

USED

FM Radio to Mono headset – R Channel of FM IC will be routed to

VC_R_IN1

which will drive

SPKR_R_OUT

; the left channel of JAMS will be muted.

FM Radio to Stereo Headset – As above but in this circumstance the left channel of
the FM IC and the JAMS will be enabled driving both

SPKR_R_OUT

and

SPKR

L_OUT

respectively.

IRQ2

is used as a master-detect (Active Low)

JAMS DIV_REF

buffer and

Comparator enabled.

IRQ3

determines headset type i.e. Stereo or Mono

Logic: Display

The display is a 96 X 64 pixel graphics display and is connected to the PCB via a 16
Pin ZIF connector

J902

. The LCD is controlled by:

•

CS1

Chip Select which originates from

DP_EN_L

, Whitecap

Pin A11

J902

Pin 1

•

RES

which originates from

RESET

, Whitecap

Pin P2

J902

Pin 2

•

R/W

which originates from

R_W

, Whitecap Pin P2 to

J902

Pin 2.

•

7 Data Lines from Whitecap

DO – D7

•

The display is supported by

–5V

originating from

U903

and can be measured on

C963

and

•

Also the data / command signal

from Whitecap

Pin B12

Содержание V2288

Страница 1: ...V2288 Level 3 Circuit Description 17 02 99 V1 0 ...

Страница 2: ...r to Front End IC Document for internal block diagram interpretation The IC s power is maintained by RF_V2 MAGIC and is controlled with the aid of RVCO_250 created by SF_OUT MAGIC and GPO4 MAGIC through Q172 RX_EN Whitecap and DCS_SEL MAGIC The GSM 900 signal is fed in through Pin 13 back out through Pin 12 to matching circuitry then returns to the IC on Pin 9 where the signal is internally mixed ...

Страница 3: ...There is no stereo headset operation for voice calls RF Transmit 1 There are 2 Mic inputs firstly from the Xcvr mic J900 where the analogue input is fed to the GCAP II U900 Pin J2 2 Secondly the analogue voice can be fed from the Aux Mic attached to the headset and will be routed from connection 1 of the headset jack J504 through to GCAP II Pin H3 3 Within the GCAP II the analogue audio will be co...

Страница 4: ...equency feedback and the RX VCO frequency are mixed to give a difference signal this is digitally phase compared with the modulation from the look up ROM The difference creates a DC error voltage TX_CP that forms part of the TX Phase locked loop 10 The error correction voltage TX_CP is then fed from Pin B1 of MAGIC to Pin 6 of the TX VCO IC U301 adjoining this line is the loop filter See Loop Filt...

Страница 5: ...ves more or less drive to the exciter stage 16 The signal is then fed to a two stage wide bandwidth PA made up from Q331 and Q370 these are driven by the exciter voltage from the PAC IC and supported by B and REG_B Q332 Q333 B regulated by TX_EN 17 PA matching is provided using the signal TX_GSM_ DCS TXVCO_EN DCS_SEL through Q160 to switch on or off the diodes CR380 370 390 350 and 340 to match th...

Страница 6: ...l Power via Charger Battery must be present to power up a power source via the test adapter to allow power to be applied to the unit whilst there is no battery present 2 T2288 charger will only work with NiCd and NiMH Lithium Ion and Alkaline batteries are not supported 3 Battery Power Source The unit will contain 3 X 1 2V Nickel Metal Hydride NiMH cells each 700mAH type AAAL theses are different ...

Страница 7: ...ed on C906 The basic circuit operation for the Boost circuit is as follows the LX signal GCAP II Pin B10 allows a path for B to charge the capacitor when the switch is on the capacitor then discharges through the inductor switch off setting up an electric field The field then collapses setting up a back EMF to charge the capacitor and so on and so on The back EMF created by the inductor is greater...

Страница 8: ...ausing a slight battery contact bounce the SR_VCC will to the user keep the unit running normally whilst internally the unit resets itself During this loss of power the unit takes it s power from a 10µF capacitor C960 This is a replacement for the RTC battery and is charged by V2 and outputs to GCAP II Pin D6 V1_SW See Deep Sleep Mode 7 Once the power source has been selected to power the phone on...

Страница 9: ...ded down and fed in to the phase comparator the difference in phase produces an error voltage that is fed onto the cathode of the Varactor CR248 Which regulates the output to a stable 13MHz clock Once the software is running and the logic side of the board has successfully powered up the CLK_SELECT signal from Whitecap Pin 1 is fed to MAGIC Pin G6 This in turn then switches the Multiplexer from th...

Страница 10: ...ch and to prevent the SIM card being removed whilst connected to Aux Power Logic Charger Circuit 1 The charging circuit contains the new COVIC U960 Charging and Over Voltage Integrated Circuit See COVIC Block Diagram There are 2 charge modes either full rate charge or Trickle current charge 2 Trickle Rate is used to safely charge a dead battery up to its usable range or to top up a charged battery...

Страница 11: ...12 The Over Voltage protection part of the circuit works in the following way 13 The normal operating range of the batteries is between 3V through to 4 5V and an over voltage condition would be classed at 5 1V If a transient above this occurred then this would be sensed by the current Sense resistor R960 and fed back into the COVIC on Pin 7 This would drive ENABLE low enabling Trickle charge mode ...

Страница 12: ...CROLL UP 4 X X X X X MENU X X KBC2 6 3 MAIL BOX X X SHIFT X X OK X X KBC3 5 2 CLEAR X X SCROLL DOWN MENU OK X X X KBC4 X X X X X X X X X X VOL UP GND X X X VOL DOWN FM RADIO X X X X VOL UP X FM Radio FM IC 1 The FM IC is new to any Motorola product and is incorporated into the V2288 Modulus II R It is controlled by the FM data bus consisting of RW_AM_FM WhiteCap output Pin M2 When low WhiteCap sig...

Страница 13: ...nd the amplifier the signal path is split in two signal path The first supports the AM FM Indicator Stage that converts the IF signal to an analogue voltage This voltage is routed to Pin 22 of the U1001 as FM_RSSI The FM_RSSI level is corresponding to the receiver field strength The second passes the signal to the 2nd IF filter and IF amplifier to feed into the Demodulator stage 4 The FM demodulat...

Страница 14: ...st set The tolerance should be 2KHz The MO_ST part of the signal works in conjunction with the CLK_AM_FM signal to indicate the mono stereo or tuned not tuned status to the WhiteCap IC See table below CLK_AM_FM MO_ST Result to WhiteCap PA5 LOW LOW stereo LOW HIGH mono HIGH LOW tuned HIGH HIGH not tuned 6 The L R signal out of the mixer and the L R signal from the 0 15KHz filter stage are feeding i...

Страница 15: ...e GCAP II within the GCAP the Codec is bypassed and both SPKR and are enabled NOT USED 5 FM Radio to Mono headset R Channel of FM IC will be routed to VC_R_IN1 which will drive SPKR_R_OUT the left channel of JAMS will be muted 6 FM Radio to Stereo Headset As above but in this circumstance the left channel of the FM IC and the JAMS will be enabled driving both SPKR_R_OUT and SPKR L_OUT respectively...

Страница 16: ...MODOLUS 3 SHARK 8485933H03_P11 GSM Service Support 25 10 99 SCHEMATICS Rev 1 0 MODULUS 3 SHARK Michael Hansen Ray Collins Ralf Lorenzen Page 3 of 4 REVISIONS ...

Страница 17: ...MODOLUS 3 SHARK 8485933H03_P11 GSM Service Support 25 10 99 SCHEMATICS Rev 1 0 MODULUS 3 SHARK Michael Hansen Ray Collins Ralf Lorenzen Page 3 of 4 REVISIONS ...

Страница 18: ...MODOLUS 3 SHARK 8485933H03_P11 GSM Service Support 25 10 99 SCHEMATICS Rev 1 0 MODULUS 3 SHARK Michael Hansen Ray Collins Ralf Lorenzen Page 2 of 4 REVISIONS ...

Страница 19: ...GSM Service Support 25 10 99 SCHEMATICS Rev 1 0 MODULUS 3 SHARK Michael Hansen Ray Collins Ralf Lorenzen Page 4of 4 REVISIONS MODOLUS 3 SHARK 8485933H03_P11 ...

Страница 20: ...RTOUT SPKR SPKR MICIN H10 CLKIN B7 GCAP_CLK F5CLK_IN F7 SCLK_OUT G9 G8 SDFS SDRX BDR BFSR BCLKR B3 B6 D4 A3 B4 BDX EFSR BDR BCLKR BCLKX TX_CLK G7 SD_TX J2 BDX BDX BCLKX BCLKX TP TP200 MAGIC 13MHz TP205 DX1 TP206 MQSPI_CLK1 TP208 DM_CS TP209 TX_KEY TP809 GND TP810 EMU1 TP811 TMS TP812 TDI TP813 EMU0 TP814 V2 TP815 TD0 TP816 TRST TP817 TCK TP818 VCC_BATT TP821 PWR_SW TP822 CE1 TP823 GCAP_CLK TP824 C...

Страница 21: ...GSM SERVICE SUPPORT GROUP 12 04 00 LEVEL 3 LAYOUT Rev 1 1 Moddulus III Shark Michael Hansen Ralf Lorenzen Ray Collins Page 2 of 2 REVISIONS Dualband Modulus III Shark 8485933H04_P13 ...

Страница 22: ...GSM SERVICE SUPPORT GROUP 12 04 00 LEVEL 3 LAYOUT Rev 1 1 Moddulus III Shark Michael Hansen Ralf Lorenzen Ray Collins Page 1 of 2 REVISIONS Dualband Modulus III Shark 8485933H04_P13 ...

Страница 23: ...N RCLOCK INTR_OUT1 TRKL_SET ENABLE_FM BATT_SENSE FM_PILOT3 FM_PILOT2 FM_PILOT1 FM_PILOT0 DATA_AM_FM RW_AM_FM EXTB _DET VDDS VCC_MEMIF VDD VCCA V2 V3 V2 STEREO_HEAD_INT HEAD_INT V3 VSIM1 V1 V2 GCLK B Y900 32 768MHz CR950 V_BOOST1 PWR_SW U900 B VAG V2 VSIM1 SIM_TX RST0 CLK0 U901 SIM Block CR905 SIM Port J803 SIM_RX SIM_TX VPP SIM I O SIM Vcc RESET CLK SPKR SPKR VSIM1 B VREF ALRT_VCC V2 PWR_ON ENABLE...

Страница 24: ... REG_B REG_B RVCO_250 RX_DCS_ GSM U253 31325MHz SW_VCC Q490 RF_V2 DM_CS Q320 SAT_DET AOC_DRIVE SH1 SH2 SH3 SH4 SH5 SH6 GSM_TX_VCO SF_OUT U301 900 1785MHz Q150 V1 PAC_EN BDR BFSR BCLKR V1_SW CR249 Q203 CR248 RF_V1 MAGIC_13MHz CLK_SELECT TP200 V1_SW RF_V1 BCLKX TX_KEY DM_CS MQSPI_CS1 MQSPI_CLK1 DX1 BDX RX_ACQ GP05 GP04 RF_V1 U200 MAGIC RF_V2 SW_VCC AOC_DRIVE TX_KEY_OUT DET_SW DCS_SEL SAT_DET RF V1 T...

Страница 25: ... TUNE CR1001 CR1002 Q1014 FM_PILOT0 FM_PILOT1 FM_PILOT2 FM_PILOT3 FM_R FM_L Q1015 TP1005 TP1006 Q1015 Q1014 VCC TUNE FMin CR1020 FL1001 10 7MHz FL1002 10 7MHz V_STAB_A V_STAB_B V_STAB_A V_STAB_B FM_TRACK1 FM_TRACK0 U1001 TP1002 TP1003 TP1004 FM_RSSI Q1001 TP1001 Y1003 10 7MHz FM_V1_SW V2 VCC V1 ENABLE_FM FM_V1_SW Q1001 Q1013 TP1000 Q1030 VCC RW_AM_FM DATA_AM_FM CLK_AM_FM MO_ST V2 V2 V2 V2 GCLK ...

Страница 26: ...DB Modulus III Shark R Look 8485933h06 GSM SERVICE SUPPORT GROUP 04 02 00 AL SCHEMATICS Rev 1 0 DualBand Modulus III Shark R Look 8485933h06 Michael Hansen Ralf Lorenzen Ray Collins Page 1 REVISIONS ...

Страница 27: ... debug issue17 02 2000 MOTOROLA INTERNAL USE ONLY SHARK Modulus 3 Dual band level 3 debug Version 1 0 Prepared by _Fabrizio Alba_____________________ Date Feb 02 2000 Approved by _____________________ Total Pages 19 ...

Страница 28: ...Shark level 3 debug issue17 02 2000 MOTOROLA INTERNAL USE ONLY REVISION HISTORY Version Date Name Reason 1 0 23 12 1999 Fabrizio Alba First release ...

Страница 29: ...ence Does phone power up correctly Does phone draw a lot of current Does display works correctly Does backlight works correctly Does keypad works correctly Does phone shows phone failure see supplier Go to no power up on pag 03 ON FUTURE ON FUTURE Go to no keypad on pag 12 Go to no backlight on pag 11 NO YES YES NO YES NO YES NO YES YES go to 1 PAG 02 NO Go to no display on pag 11 NO For any page ...

Страница 30: ...peaker working correctly Are audio TX RX working correctly on headset Go to no TX RX audio on headset on pag 14 15 Go to no microphone on pag 14 Go to no alert on pag 12 Go to no tx GSM DCS on pag 07 Go to no rx GSM DCS on pag 05 ON FUTURE Connect phone to HP 8922 active cell Make a phone call from analyzer Answer call Insert headset on properly connector Does internal charger work correctly Not f...

Страница 31: ...check line between C919 C213 Finally check on C215 for RF_V2 voltage 2 8 V presence and for RF_V1 voltage 2 8 V on C217 For V_BOOST issue check L901 C980 C970 C981 CR 902 C913 for other voltages issues check any line for short or different resistence compare with a good one Make a short on W D line on R941 side near C913 AND CHECK FOLLOWING FOLTAGES V_BOOST 5 6 V on C913 V1 5V on C906 V2 2 8 V on ...

Страница 32: ...und it for missing dry joint or faulty check also V1_SW 5 V presence on R234 it comes from Q913 If all is ok probably U200 faulty 2 NO POWER UP Does MAGIC 13 MHz clock is present on TP 200 or C817 NO Is reset voltage at 2 7 V present on C820 Is CE0 flash ic chip enable present on TP 824 Is CE2 ram ic chip select present on TP 825 and CE3 on TP 826 REPLACE U900 Check for V2 2 8 V presence on C700 C...

Страница 33: ...nd it With PCB in stand by check for data presence on SPI BUS TP 205 TP 206 Problem could be U800 try to resolder it after replace component Check U200 for faulty Check for data presence on R299 BDR R299 BFSR R287 BCLKR Note digit 450062 for every point of measure Does RX ACQ signal works correct whenever you digit 450062 test command check this on TP RX_ACQ See receiver timing below NO YES NO YES...

Страница 34: ...mes from U903 REPLACE FL490 YES YES YES YES NO Check on U432 pin 7 for RX VCO presence at 1347 4 MHz for GSM or at 1442 8 MHz for DCS if ok check U432 for correctbias else check U253 for faulty Note RX_VCO250 see on Q172 RX_DCS GSM see on Q160 V_tuning on pin 1 see R221 U200 SEE U432 DIAGRAM ON PAG 18 Is RF signal as before present on FL472 in using GSM way or on FL 480 IN using DCS way way Is the...

Страница 35: ...from U200 or pin 2 U110 GSM_SEL comes out from U110 pin 4 10 V comes out from U904 DCS_TX_VCO GSM_TX_VCO for any problem check Q130 Connect on J300 connector an RF spectrum analyzer set pcb in test mode and digit following test command 110062 1215 40 for a test in GSM way 110700 1215 40 for a test in DCS way Check for RF signal presence at frequency 902 4 MHz for GSM or 1747 8 MHz for DCS RF IS PR...

Страница 36: ...n R326 it comes from U 800 else be sure to have correct RF signal on U301 pin 1 if not ok go to C on page 07 Check C1619 R301 CR320 L320 C326 Q330 for correct bias collector 3 3 V REG B see for this Q332 Q333 base 1 V see R330 PAC IC bias on pag 09 Check R304 L331 C315 and Q331 for correct bias REG B 3 3 V voltage on collector see for this Q332 Q333 0 4 V on base see for this L333 R302 CR330 R387 ...

Страница 37: ... TP 209 DM_CS see on TP 208 NOTE REFER DIAGRAMS BELOW on pag 10 FOR TIMING TX PAC IC TX POWER CONTROL ON U200 IC PAC_EN 4V 217 Hz U350 14 6 5 4 3 2 1 8 9 10 11 12 13 7 DET_SW TX_KEY OUT ACT AOC GND RF_IN GND PAC_EN EXC NOTE check if any components mentioned is correctly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all t...

Страница 38: ...CS NOTE check if any components mentioned is correctly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all the signal voltage present in this procedure has to be clear and at correct level compare them with a good pcb MODULUS 2 TX TIMING on U200 ...

Страница 39: ...940 Probably U800 faulty Check in order U900 U800 for faulty NO DISPLAY Replace display with a new one Is still a display issue END Check on J902 display connector for presence of 1 data DP_EN it comes from U800 2 2 7 V RESET it comes from U900 3 data A0 see R716 for missing 4 data R_W it comes from U800 from 5 to 12 data see on C1714 to C1720 13 2 7 Vcc V2 it comes from C939 14 GND 15 5 Vcc it co...

Страница 40: ...k R508 for missing or unsoldered issue else problem could be U900 NO ALERT Supply pcb using pcb test cable cod AE20101903 set pcb in test mode and digit test commands 432 tone enabled on alert way 1513 continuos tone 4707 max volume Check for ALRT_VCC 3 Vcc presence on J510 alert pad and check for signal 1 6 Vpp offset 1 4 Vcc on J511 alert pad Check in order ALRT_VCC presence 3V on Q903 pin 1 2 5...

Страница 41: ...Insert on J504 connector an headset jack is power on tone udible on speaker You could have an intermittent problem so check any components of speaker way for this U800 U900 Set pcb in test mode and digit following test command 481000 434 4707 is 1 KHz tone present on speaker important remove jack on J504 connector Digit 432 test command enabled alert way for audio use is 1 KHz tone present on aler...

Страница 42: ...tly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all the signal voltage present in this procedure has to be clear and at correct level compare them with a good pcb Check for Mic bias 1 4 Vcc presence on C923 if not ok check for dry joint misssing or unsoldered issues on R927 R926 C934 C927 if ok check for same issues on...

Страница 43: ...cable cod AE20101903 set pcb in test mode and digit test commands 481000 1 KHz tone enabled 434 audio on speaker headset way 4707 max volume audio Insert on J504 headset connector an headset jack and check if 1KHz tone is udible on headset speaker Check J504 U900 for any intermittent issue Check for missing dry joint or unsoldered issues on R1506 C611 R961 C951 C952 L1005 J504 Is SPKR signal at 0 ...

Страница 44: ...Page 16 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 NO POWER UP TIMING SEQUENCE See timing sequence below for no power up issues on pag 03 ...

Страница 45: ...Page 17 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 NO POWER UP TIMING SEQUENCE See timing sequence below for no power up issues on pag 03 ...

Страница 46: ...Page 18 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 U432 front end mixer ...

Страница 47: ...Page 19 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 MAGIC IC U200 PACKAGE GCAP 2 IC U900 PACKAGE WHITECAP IC U800 PACKAGE ...

Страница 48: ...DB Modulus III Shark R Look 8485933h06 GSM SERVICE SUPPORT GROUP 04 02 00 RF SCHEMATICS Rev 1 0 DualBand Modulus III Shark R Look 8485933h06 Michael Hansen Ralf Lorenzen Ray Collins Page 1 REVISIONS ...

Страница 49: ...f f 0 15kHz 23 53 kHz 19 kHz Pilot Frequence 38 kHz AMP AMP 2L 2R L R L R kHz U 0 03 5 10 15 20 25 30 35 40 45 19 38 50 55 L R L R L R L R Pilot L R Help singnal Sum signal Help singnal 38 kHz GSM Service Support 03 11 99 BLOCK DIAGRAM Rev 1 0 FM TRANSMITTER RECEIVER Michael Hansen Ray Collins Ralf Lorenzen Page 1 of 1 REVISIONS without 38kHz carrier FM VCO ...

Страница 50: ... debug issue17 02 2000 MOTOROLA INTERNAL USE ONLY SHARK Modulus 3 Dual band level 3 debug Version 1 0 Prepared by _Fabrizio Alba_____________________ Date Feb 02 2000 Approved by _____________________ Total Pages 19 ...

Страница 51: ...Shark level 3 debug issue17 02 2000 MOTOROLA INTERNAL USE ONLY REVISION HISTORY Version Date Name Reason 1 0 23 12 1999 Fabrizio Alba First release ...

Страница 52: ...ence Does phone power up correctly Does phone draw a lot of current Does display works correctly Does backlight works correctly Does keypad works correctly Does phone shows phone failure see supplier Go to no power up on pag 03 ON FUTURE ON FUTURE Go to no keypad on pag 12 Go to no backlight on pag 11 NO YES YES NO YES NO YES NO YES YES go to 1 PAG 02 NO Go to no display on pag 11 NO For any page ...

Страница 53: ...peaker working correctly Are audio TX RX working correctly on headset Go to no TX RX audio on headset on pag 14 15 Go to no microphone on pag 14 Go to no alert on pag 12 Go to no tx GSM DCS on pag 07 Go to no rx GSM DCS on pag 05 ON FUTURE Connect phone to HP 8922 active cell Make a phone call from analyzer Answer call Insert headset on properly connector Does internal charger work correctly Not f...

Страница 54: ...check line between C919 C213 Finally check on C215 for RF_V2 voltage 2 8 V presence and for RF_V1 voltage 2 8 V on C217 For V_BOOST issue check L901 C980 C970 C981 CR 902 C913 for other voltages issues check any line for short or different resistence compare with a good one Make a short on W D line on R941 side near C913 AND CHECK FOLLOWING FOLTAGES V_BOOST 5 6 V on C913 V1 5V on C906 V2 2 8 V on ...

Страница 55: ...und it for missing dry joint or faulty check also V1_SW 5 V presence on R234 it comes from Q913 If all is ok probably U200 faulty 2 NO POWER UP Does MAGIC 13 MHz clock is present on TP 200 or C817 NO Is reset voltage at 2 7 V present on C820 Is CE0 flash ic chip enable present on TP 824 Is CE2 ram ic chip select present on TP 825 and CE3 on TP 826 REPLACE U900 Check for V2 2 8 V presence on C700 C...

Страница 56: ...nd it With PCB in stand by check for data presence on SPI BUS TP 205 TP 206 Problem could be U800 try to resolder it after replace component Check U200 for faulty Check for data presence on R299 BDR R299 BFSR R287 BCLKR Note digit 450062 for every point of measure Does RX ACQ signal works correct whenever you digit 450062 test command check this on TP RX_ACQ See receiver timing below NO YES NO YES...

Страница 57: ...mes from U903 REPLACE FL490 YES YES YES YES NO Check on U432 pin 7 for RX VCO presence at 1347 4 MHz for GSM or at 1442 8 MHz for DCS if ok check U432 for correctbias else check U253 for faulty Note RX_VCO250 see on Q172 RX_DCS GSM see on Q160 V_tuning on pin 1 see R221 U200 SEE U432 DIAGRAM ON PAG 18 Is RF signal as before present on FL472 in using GSM way or on FL 480 IN using DCS way way Is the...

Страница 58: ...from U200 or pin 2 U110 GSM_SEL comes out from U110 pin 4 10 V comes out from U904 DCS_TX_VCO GSM_TX_VCO for any problem check Q130 Connect on J300 connector an RF spectrum analyzer set pcb in test mode and digit following test command 110062 1215 40 for a test in GSM way 110700 1215 40 for a test in DCS way Check for RF signal presence at frequency 902 4 MHz for GSM or 1747 8 MHz for DCS RF IS PR...

Страница 59: ...n R326 it comes from U 800 else be sure to have correct RF signal on U301 pin 1 if not ok go to C on page 07 Check C1619 R301 CR320 L320 C326 Q330 for correct bias collector 3 3 V REG B see for this Q332 Q333 base 1 V see R330 PAC IC bias on pag 09 Check R304 L331 C315 and Q331 for correct bias REG B 3 3 V voltage on collector see for this Q332 Q333 0 4 V on base see for this L333 R302 CR330 R387 ...

Страница 60: ... TP 209 DM_CS see on TP 208 NOTE REFER DIAGRAMS BELOW on pag 10 FOR TIMING TX PAC IC TX POWER CONTROL ON U200 IC PAC_EN 4V 217 Hz U350 14 6 5 4 3 2 1 8 9 10 11 12 13 7 DET_SW TX_KEY OUT ACT AOC GND RF_IN GND PAC_EN EXC NOTE check if any components mentioned is correctly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all t...

Страница 61: ...CS NOTE check if any components mentioned is correctly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all the signal voltage present in this procedure has to be clear and at correct level compare them with a good pcb MODULUS 2 TX TIMING on U200 ...

Страница 62: ...940 Probably U800 faulty Check in order U900 U800 for faulty NO DISPLAY Replace display with a new one Is still a display issue END Check on J902 display connector for presence of 1 data DP_EN it comes from U800 2 2 7 V RESET it comes from U900 3 data A0 see R716 for missing 4 data R_W it comes from U800 from 5 to 12 data see on C1714 to C1720 13 2 7 Vcc V2 it comes from C939 14 GND 15 5 Vcc it co...

Страница 63: ...k R508 for missing or unsoldered issue else problem could be U900 NO ALERT Supply pcb using pcb test cable cod AE20101903 set pcb in test mode and digit test commands 432 tone enabled on alert way 1513 continuos tone 4707 max volume Check for ALRT_VCC 3 Vcc presence on J510 alert pad and check for signal 1 6 Vpp offset 1 4 Vcc on J511 alert pad Check in order ALRT_VCC presence 3V on Q903 pin 1 2 5...

Страница 64: ...Insert on J504 connector an headset jack is power on tone udible on speaker You could have an intermittent problem so check any components of speaker way for this U800 U900 Set pcb in test mode and digit following test command 481000 434 4707 is 1 KHz tone present on speaker important remove jack on J504 connector Digit 432 test command enabled alert way for audio use is 1 KHz tone present on aler...

Страница 65: ...tly positioned has not dry joint and is not damaged If all is ok replace it If problem is still the same send BOARD IN htc note all the signal voltage present in this procedure has to be clear and at correct level compare them with a good pcb Check for Mic bias 1 4 Vcc presence on C923 if not ok check for dry joint misssing or unsoldered issues on R927 R926 C934 C927 if ok check for same issues on...

Страница 66: ...cable cod AE20101903 set pcb in test mode and digit test commands 481000 1 KHz tone enabled 434 audio on speaker headset way 4707 max volume audio Insert on J504 headset connector an headset jack and check if 1KHz tone is udible on headset speaker Check J504 U900 for any intermittent issue Check for missing dry joint or unsoldered issues on R1506 C611 R961 C951 C952 L1005 J504 Is SPKR signal at 0 ...

Страница 67: ...Page 16 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 NO POWER UP TIMING SEQUENCE See timing sequence below for no power up issues on pag 03 ...

Страница 68: ...Page 17 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 NO POWER UP TIMING SEQUENCE See timing sequence below for no power up issues on pag 03 ...

Страница 69: ...Page 18 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 U432 front end mixer ...

Страница 70: ...Page 19 lunedµ 20 dicembre 1999 MOTOROLA CONFIDENTIAL PROPRIETARY Dual band Modulus 3 level 3 debug rev 1 0 MAGIC IC U200 PACKAGE GCAP 2 IC U900 PACKAGE WHITECAP IC U800 PACKAGE ...

Страница 71: ... 1 R_W 4 3 A0 V2 GCAP2 BACKLIGHT V2 SR_VCC CE0 CE1 CE2 CE3 R_W SPI_DATA DX1 SPI_CLK MOSPI_CLK1 CE MQSPI_CS1 MAGIC SPI M7 K7 N8 D6 E1 B2 A1 G5 A5 E1 F5 D7 F8 C9 E10 B11 D9 B9 STBY_DL G4 C4 RESET B4 V1 5V GCAP_CLK 13 MHz B7 F5 1 EXT_B B U903 2 1 H3 Audio Codec Interface SPI INTERFACE GSM SERVICE SUPPORT GROUP 27 03 00 LEVEL 3 AL Block Diagram Rev 1 3 Dualband SHARK Ralf Lorenzen Michael Hansen Ray C...

Страница 72: ... WhiteCap 1805 1880MHz 13MHz A7 C7 C6 H2 H1 F1 SF_OUT LOGIC CONTROL U301 TX VCO 10 1 6 DCS_TX_VCO GSM_TX_VCO 8 3 Q370 C B Q320 C B Q333 TX_EN B Y200 H6 5 MODULUS III SHARK GSM SERVICE SUPPORT GROUP 27 03 00 LEVEL 3 RF Block Diagram Rev 1 3 Dualband SHARK Ralf Lorenzen Michael Hansen Ray Collins Page1 TX LOOP FILTER B1 E2 REF OSC 26 MHz Prog Divider 200KHz REF Divider 200KHz AFC RXI RXQ TXI TXQ PLL...

Страница 73: ...Modulus III Shark_ P6 0_v14 GSM Service Support 23 09 99 Level 3 Layout Diagram Rev 1 0 MODULUS III SHARK P6 0_v14 Michael Hansen Ray Collins Ralf Lorenzen Page 1 of 4 REVISIONS ...

Страница 74: ...Modulus III Shark_ P06_v14 GSM Service Support 23 09 99 LEVEL 3 AL SCHEMATICS Rev 1 0 MODULUS III SHARK Ver P6 0 _ v14 Michael Hansen Ray Collins Ralf Lorenzen Page 2 of 4 REVISIONS ...

Страница 75: ...GSM Service Support 23 09 99 FM Radio Level 3 SCHEMATIC Rev 1 0 SHARK MODULUS III Ver P6 0 v14 Michael Hansen Ray Collins Ralf Lorenzen Page 4 of 4 REVISIONS Modulus III SHARK_Version P06_v14 ...

Страница 76: ...MODOLUS 3 SHARK 8485933H03_P11 GSM Service Support 25 10 99 SCHEMATICS Rev 1 0 MODULUS 3 SHARK Michael Hansen Ray Collins Ralf Lorenzen Page 1 of 4 REVISIONS ...

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