Voxtel GSM ST11 Service Manual Download Page 24 | Manualshive

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5.3 Receiver Trouble

5-3

Troubleshooting

YES

Check the receiver.

Replace U603,U604

which does not have

proper level.

A few hundreds

mV of AC signal levels

are measured?

NO

YES

Check the signal level at the U603,

U604 pin 5,6 after

putting audio signal.

Receiver is not working.

Connect the Phone to

Wireless Communication Test Set.

Check the signal level

at the EAR 600 Pin 2,3 after

putting audio signal in MIC.

A few hundreds

mV of AC signal levels

are measured?

Replace U501.

END

NO

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Summary of Contents for GSM ST11

Page 1: ...GSM PHONE SERVICE MANUAL MODEL ST11 ...

Page 2: ...Rev 1 00 ...

Page 3: ...re 4 1 4 1 Data Kit 4 1 4 1 1 Download Equipment 4 1 4 1 2 Download Procedure 4 1 5 Troubleshooting 5 1 5 1 Power On Trouble 5 1 5 2 MIC Trouble 5 2 5 3 Receiver Trouble 5 3 5 4 Melody Trouble 5 4 5 5 LCD Trouble 5 5 5 6 Charge Trouble 5 6 5 7 Vibrator Trouble 5 7 5 8 Backlight Trouble 5 8 5 9 SIM Detection Trouble 5 9 5 10 Ear Phone Trouble 5 10 5 11 7 LED Trouble 5 11 5 12 TX Power Trouble E GSM...

Page 4: ...ard 7 2 7 2 1 Chipset Ulysse Omega 7 2 7 2 2 Memory Melody 7 3 7 2 3 Audio Peripheral Circuit 7 4 7 2 4 I O B d to B d Connector Interface 7 5 7 3 RF Top Schematic 7 6 7 3 1 RF Pam 7 6 7 3 2 RF Main IC 7 7 8 PCB Diagram 8 1 8 1 Main PCB 8 1 9 Electrical Part List 9 1 9 1 RF Part List 9 1 9 2 Base Band Part List 9 3 9 3 Key PCB Part List 9 6 ...

Page 5: ...and of GSM 900 and DCS 1800 GSM Phase II features are fully supported and parts of the GSM Phase II features are also supported About the SIM Toolkit ST11 supports up to Class 3 including Class 1 2 For speech communication ST11 supports Full Rate FR Enhanced Full Rate EFR and Half Rate HR For easy text eZi Text is implemented and WAP protocol is adopted for internet connection 1 1 ...

Page 6: ...1 2 Introduction Memo ...

Page 7: ... 1800 TX 1710 1785 MHz DCS 1800 RX 1805 1880 MHz Battery Capacity Standard Li ion 720 mAh Slim Li ion 600 mAh Display Full graphic type Dual LCD Main LCD Pixels 128 x 96 Ext LCD Pixels 96 x 32 7 Color LED Indicator Antenna Fixed type PC synchronization Applied Speech coding FR EFR HR Data Fax Built in Vibrator Built in Dual Speaker Applied 40 pole Portable Handsfree Ear Phone Built in Travel charg...

Page 8: ...s SIM Phone Languages Same as number of language Supplementary services Call barring All calls All outgoing calls All outgoing international calls All outgoing int calls except to home country All incoming calls All incoming calls when roaming Short Message Write message Send Store Output message Send Save Extract Number Delete Delete All Input message Reply Forward Extract number Delete Delete Al...

Page 9: ...de GSM 900 EGSM DCS1800 Miscellaneous function Development test facility Field test facility Display software version Text input Language English Simplified chinese Traditional chinese eZi text Predictive word input Scheduler View Make Schedule Call Memo Anniversary Delete View all Delete All Go Today WAP WAP World time Setting local time Number of selectable cities 61 Cities ...

Page 10: ...2 4 Specification Function Detail Item Comments PhoneBook Search All Number Search Name Search Add New Entry management Game 2EA Eggaman Honey ...

Page 11: ...ve the SIM card as shown 3 1 2 Remove the SIM card To do so Slide the metal lock in the direction of arrow 1 Remove the battery To do so Pull the battery lock above the battery toward the top of the phone and hold it in the position Lift the battery away ...

Page 12: ...e 1 Remove the three screws on the back of the phone 2 Insert a small type driver between the front case and the rear case and lift up the front case Front case Rear case Main PCB Key Pad 3 Now you can replace the PCBs and the other components ...

Page 13: ...r case as described at Steps 1 and 2 under Main Frame Disassembly on page 3 2 2 Unplug the connector shown at right from the main PCB 3 Unhook the folder from the main frame 3 3 Folder 4 Remove the three screws from the folder Connector Main PCB ...

Page 14: ...ly Instruction 6 Now you can remove the LCD ass y and the other components LCD ass y 5 Insert a small type driver between the folder upper and the folder lower and lift up the folder upper Folder upper Folder lower ...

Page 15: ...3 4 Exploded View and Parts List 3 4 1 Exploded View 3 5 ...

Page 16: ...BRACKET ANTENNA 1 8 RUBBER R F 1 9 LOCKER SIM 1 10 SCREW 4 11 PCB MAIN ASS Y 1 12 RUBBER I O 1 13 KEY PAD 1 14 SIDE KEY 1 15 RUBBER MIC 1 16 CASE FRONT 1 17 SCREW 3 18 WINDOW MAIN 1 19 DECO WINDOW 1 20 INDICATOR R 1 21 WINDOW SUB 1 22 BEZEL 1 23 FOLDER UPPER 1 24 PCB FOLDER ASS Y 2 25 HINGE 1 26 FOLDER LOWER 1 3 4 2 Mechanical Parts List ...

Page 17: ...1 the following working environments should be prepared ST11 download cable Interface JIG is connected to only COM1 serial port of the desktop or notebook PC ST11 download monitor program is copied to the desktop PC or notebook PC Target software is downloaded to the ST11 mobile phone Warning You MUST use the download cable kit Interface JIG and UART download monitor program Otherwise downloading ...

Page 18: ...p in the PC 2 Execute monitor662 exe And then select Target menu Then choose Connect from the Target menu 3 A table will be displayed as shown in Figure 2 Then press the arrow button and choose a correct serial port And press OK button Data Kit Download Procedure Figure 1 Figure 2 ...

Page 19: ...llowing window shown in Figure 3 is displayed connect ST11 phone to the download cable Interface JIG and press power on key of ST11 If the connection is succeeded the following screen will show the contents as shown in Figure 4 Figure 3 Figure 4 ...

Page 20: ...cedure 5 Click on Flash on the top menu and select Erase and Program Appli only item as shown in Figure 5 6 Choose the target SW that you want to download And then you can see the following window in Fingure 6 Figure 5 Figure 6 ...

Page 21: ... the downloading procedure is succeeded then the following window is shown 8 Press the Disconnect of Target menu and seperate the phone from Download cable 4 5 Data Kit Download Procedure Figure 7 Figure 8 ...

Page 22: ...g YES Check the level of TP515 ON OFF YES Then the phone is powered on properly Check the LCD module The level of battery voltage is higher than 3 4V The level of TP515 as high as 3V Check the battery Charge the battery Power on sequence is not executed properly Try again If the result is same change U501 chipset END NO NO ...

Page 23: ...gnal in MIC YES Check the MIC The voltage is 2 4V MIC is not working Connect the Phone to Wireless Communication Test Set 8960 or CMU 200 Check the R612 voltage A few hundreds mV of AC signal levels are measured Check the connectivity of R610 and R612 Replace U612 which does not have proper level END NO NO ...

Page 24: ...C signal levels are measured NO YES Check the signal level at the U603 U604 pin 5 6 after putting audio signal Receiver is not working Connect the Phone to Wireless Communication Test Set Check the signal level at the EAR 600 Pin 2 3 after putting audio signal in MIC A few hundreds mV of AC signal levels are measured Replace U501 END NO ...

Page 25: ...heard END Check the connectivity of Speaker YES Check whether the melody signal is out from Pin 17 18 of U402 Connect the Speaker to the phone properly NO Check the signal level of SPK and SPK while the melody is being played Check the level of C416 Level is VBAT Replace U402 NO ...

Page 26: ...to the LCD connector on the PCB LCD connector is well soldered onto PCB The LCD driver source voltage is 3V U622 PIN5 YES LCD display is not working Replace LCD module Reassemble LCD module with LCD connector NO Re solder the LCD connector NO YES Replace U622 END YES NO ...

Page 27: ...l to 5 2V 600mA Q600 Pin1 Pin2 voltage is between 0 65 0 9V D601 voltage is lower than 0 3V R605 voltage is lower than 0 12V Reassemble bettery pack Re download S W Replace Q600 NO Replace D601 NO Replace R 605 Case 1 Case 2 NO Replace the bettery pack NO Replace the defective TA NO SATRT END YES CN301 is well connected to PCB NO Re mount CN301 Charging is not working ...

Page 28: ...phone then hold down key 5 7 Troubleshooting U6 Pin3 voltage level is higher than Approx 3V U622 Pin5 voltage level is higher than 3V Replace U622 START In the Test mode select Baseband Test then select Vibrator Mode Check Replace Vibrator Replace U6 END YES NO YES NO ...

Page 29: ...ace battery YES YES YES YES YES R711 or R716 is well connected Voltage level of Q701 or Q702 is higher than Approx 3V Voltage value of LED Pin1 is same as the voltage value of battery Replace D700 D707 Replace the LCD module Voltage level of U2 Pin 1 is 4 5V C20 C22 are well connected Replace U2 Check the 3 point LEDs in the Lightguide Re solder C20 C22 R10 is well connected R11 is well connected ...

Page 30: ... Troubleshooting Check the voltage of CN 600 Pin 1 7 SIM Detection is not working YES Check the voltage level of CN600 Pin3 when power is ON YES Check the SIM Level is 3V or 5V Level is 3V or 5V Replace U501 Replace U501 END NO NO ...

Page 31: ... Troubleshooting Replace U501 Check each Resistance value of F600 F601 Ear Phone is not working YES Connect the phone to Wireless communication Test set Check the ear phone Each Ressisitance value is Below 10Ω Replace that END NO ...

Page 32: ... or Pin 5 of U3 Orange U4 Green U5 Blue YES Replace 7 LED Green On R7 voltage is 0 75V Orange On R3 voltage is 0 75V Blue On R13 voltage is 0 75V The level is higher than 0 7V Replace U500 when the solder state of R7 Green R3 Orange R13 Blue is ok Re solder R4 R8 R14 Replace U3 U4 U5 END NO NO ...

Page 33: ...shown in Remark Check U204 soldering U204 pin 3 DC 1 4V 0 1V Replace U204 if defective U204 pin 4 DC 2 85V 5 Replace U204 if defective Check U202 pin soldering Ulysse Nausica S W Check U206 soldering U206 pin 5 25 28 DC 2 85V Replace U206 if defective Check U202 pin 5 6 7 8 I Q signal DC 1 35V 0 5Vp p Check IF VCO U206 pin 26 27 frequency power Frequency 798MHz Power 25dBm Go to A Remarks 1 Spectr...

Page 34: ...ace U202 if defective Check U101 soldering U101 pin 4 VBAT DC voltage 3 3V U101 pin 3 PAON high voltage U101 pin 2 BSW low voltage U101 pin 6 PA_LEVEL signal U101 pin 7 902 4MHz freq power Replace U101 if defective Check U110 soldering U110 pin 2 high voltage U110 pin 11 low voltage Replace U110 if defective Check Power Amp Output C106 frequency power Frequency 902 4MHz Power 16dBm Check ANT switc...

Page 35: ...6 soldering U206 pin 5 25 28 DC 2 85 V Replace U206 if defective Check U202 pin 5 6 7 8 I Q signal DC 1 35V 0 5Vp p Check IF VCO U206 pin 26 and 27 frequency power Freuency 766MHz Power 26dBm YES NO Check U206 soldering U206 pin 5 25 28 DC 2 85V Replace U201 if defective Check RF 2 VCO U206 pin 23 and 24 frequency power Frequency 1364 8 MHz Power 30dBm START Go to B Remarks 1 Spectrum analyzer SPA...

Page 36: ...high voltage U101 pin 2 BSW high voltage U101 pin 6 PA_LEVEL signal U101 pin 7 1747 8 MHz freq power Replace U103 U101 if defective Check U110 soldering U110 pin 2 low voltage U110 pin 11 high voltage Replace U110 if defective Check Power Amp Output C122 frequency power Frequency 1747 8 MHz Power 12dBm Check U110 pin 8 frequency power Frequency 1747 8 MHz Power 15dBm YES YES Check RF connector ANT...

Page 37: ...oltage Replace U110 if defective Check U201 soldering Replace U201 if defective Check ANT switch U110 pin 10 frequency power Frequency 947 4MHz Power 75dBm Check RF 1 st SAW Filter U201 pin3 4 frequency power Frequency 947 4MHz Power 77dBm YES NO Check U206 soldering Replace U206 if defective Check RFLO VCO U206 pin23 24 frequency power Freuency 1894 6MHz Power 60dBm Go to C Remarks 1 Spectrum ana...

Page 38: ... Troubleshooting END YES NO Check U200 Pin soldering Ulysse Nausica S W VC TCXO pin3 output path YES Check RF Mainchip U200 pin 2 3 4 5 I Q signal DC 0 9V 0 3Vp p U200 Pin 7 Freguency 13 00MHz Power 15dBm C ...

Page 39: ...requency power Frequency 1842 8 MHz Power 73dBm Check ANT Switch U110 pin 1 frequency power Frequency 1842 8MHz Power 76dBm YES NO Check soldering Replace U203 if defective Check RF 1 st SAW Filter frequency power Frequency 1842 8 MHz Power 77dBm YES NO Check U206 soldering Replace U206 if defective Check RFLOVCO U206 pin 23 24 frequency power Frequency 1842 7 MHz Power 30dBm Remarks 1 Spectrum an...

Page 40: ... Troubleshooting END YES NO Check U200 pin soldering Ulysse Nausica S W VC TCXO pin 3 output path Check RF Mainchip U200 pin 2 3 4 5 I Q signal DC 1 25V 0 3Vp p U200 pin 7 Freguency 13 00 MHz Power 15dBm D ...

Page 41: ...Troubleshooting Memo 5 20 ...

Page 42: ...6 Block Diagram 6 1 BB Block Diagram 6 1 ...

Page 43: ...6 2 Block Diagram 6 2 RF Block Diagram ...

Page 44: ...50pF V700 100n D706 1 2 V705 V708 C700 6 D704 1 2 V707 V703 STAR END_ON OFF SW700 7 1 RIGHT 100K R717 F1 R716 3 9K EMX1T2R Q701 1 2 3 4 5 6 VBAT AVLC5S02050 50pF V701 SHARP 2 3 R712 100K Q702 EMX1T2R 1 2 3 4 5 6 RD700 A3210ELH 1 D703 1 2 AVLC5S02050 50pF V711 D702 1 2 47K R703 AVLC5S02050 50pF V714 D701 1 2 15R R715 V706 V704 V713 SEND 0 EN_BACKLIGHT VR3 KBC 4 KBR 1 KBR 2 KBR 1 KBC 0 KBR 2 KBC 1 K...

Page 45: ...CT5 TSPACT6_NCS6 E8 E7 TSPACT7_CLKX_SPI TSPACT8_NMREQ C6 E6 TSPACT9_MAS1 TSPCLKX E14 C14 TSPDI_I_O4 D14 TSPDO TSPEN0 D13 D12 TSPEN1 D3 RX_MODEM SCLK_INT1N E3 C4 SDI_SDA C1 SDO_INT10N D1 SD_IRDA_CLKOUT_DSP J11 SIM_CD_MAS0 J14 SIM_CLK SIM_IO J13 SIM_PWCTRL_I_O5 J12 SIM_RST K14 G1 TCK TCXOEN E11 H2 TDI TDO H3 TMS H1 TSPACT0 C13 NEMU0 G2 G4 NEMU1 L8 NFOE_X_A3 L9 NFWE_X_A0 NRESET_OUT_I_O7 K11 NRESPWRON...

Page 46: ...7 A11 C8 A12 D8 A13 E8 A14 F8 A15 D9 A16 G9 A17 F4 A18 E4 A19 D7 A2 E2 A20 E6 E9 A22 U401 1608 1608 2 2u C412 WR C416 1u HPOUT L HPOUT R 11 5 IFSEL PLLC 6 32 SDOUT SPOUT1 17 18 SPOUT2 SPVDD 15 16 SPVSS 7 VDD 9 VREF VSS 8 CS 29 3 IRQ RD 31 RST 4 28 30 A0 1 CLK1 D0 27 26 D1 D2 25 24 D3 D4 23 22 D5 D6 21 20 D7 EQ1 12 13 EQ2 EQ3 14 2 EXTX1 19 EXTX2 10 VR2B U402 YMU762 10k R409 47n C403 100n C409 VBAT ...

Page 47: ...34 1K R610 C624 39p 1608 22n C601 U623 NC 1608 VBAT C616 6 7 8 CN601 AGK3370 1 1 2 2 3 3 R605 0R2_1 U622 MIC5219 3 0BM5 BYP 4 3 EN 2 GND IN 1 OUT 5 Q600 SI6459DQ T1 1 2 3 4 5 100K 150p C603 R617 1608 15p C617 1608 39p C623 3216 10u C602 VR3 C608 100n DG9411DL T1 U612 1 2 3 4 5 6 180K 470p C605 VR3 R616 V605 VR3 C622 15p 1608 1K R666 AVLC5S02050 50pF V609 C600 33u 10V R611 1K V602 LCD_VIB_VDD TC75W...

Page 48: ...D_VIB_VDD R306 10 C310 1n TP316 V303 1 2 16 13 DSR 1 GND1 2 GND2 10 POWER_ON 14 RTS 7 RX 11 RXD 3 TCK 5 TDI 6 TDO 4 TMS 8 TX 12 TXD 18 VBAT1 9 VBAT2 CON301 1010 0018 301 15 CTS DCVOLT1 17 DCVOLT2 22p C306 C305 22p 10 R304 1 2 10 R302 R307 10 V300 AVLC5S02050 50PF V302 1 2 C302 2 2u 1608 22p C307 VR2B VR3 VBAT 1 2 3 4 5 6 7 8 VBAT MNR04 10K R301 EN_BACKLIGHT EN_GREEN EN_BLUE TDO TDI TCK TMS DEBUG_R...

Page 49: ...47A 8 ANT 1 DCS_RX DCS_TX 3 G1 4 G2 6 G3 7 G4 9 12 G5 GSM_RX 10 GSM_TX 5 VC1 10K R113 C104 47p R105 430 NC C105 ANT_BW ANT1 L103 18n 3 9p C120 C123 10nF 3 4 G2 1 IN OUT 2 C118 NC C122 2 7p ANT101 G1 1608 2 2u C100 U108 UMD9N 1 2 3 4 5 6 10n C102 Vccout 47p C112 28 G2 27 G3 22 G4 21 16 G5 26 G6 G7 20 17 G8 13 G9 GSM_IN 7 9 GSM_OUT GVCC 8 3 TX_EN 4 VBATT VRAMP 6 5 VREG 10 U101 RF3110 BAND 2 1 DCS_IN...

Page 50: ...n C221 22n R722 1K 100 R203 C222 C200 22n TXQN TXQP 7 23 VDD1 14 VDD2 32 VDD3 VDD4 26 RF2V85 10u 2 NC1 29 28 NC2 PDNB 31 RFIDN 20 RFIDP 19 RFIGN 22 21 RFIGP 18 RFIPN RFIPP 17 13 RFLON 12 RFLOP RFOD 24 25 RFOG 6 TXIN 5 TXIP 8 RF2V85 SI4200 U202 3 CKN CKP 4 16 DIAG1 DIAG2 15 11 GND1 30 GND2 27 GND3 10 IFLON 9 IFLOP 1 ION IOP R202 10K 10n C214 C207 100n RF2V85 C209 C204 RF2V85 100p 27n L200 1p 1 5p C...

Page 51: ...7 8 Schematic Diagram Memo ...

Page 52: ...8 PCB Diagram 8 1 Main PCB 8 1 Top View ...

Page 53: ...8 2 PCB Diagram Bottom View ...

Page 54: ... C204 C206 CAP CERAMIC CHIP 1pF GRM36C0G 010C 50PN C212 C210 CAP CERAMIC CHIP 1 5pF GRM36C0G 1R5C 50PN C122 CAP CERAMIC CHIP 2 7pF GRM36C0G 2R7C 50PN C121 CAP CERAMIC CHIP 8 2pF GRM36C0G 8R2D 50PN C109 C113 CAP CERAMIC CHIP 22pF GRM36C0G 220J 50PN C108 CAP CERAMIC CHIP 27pF GRM36C0G 270J 50PN C103 CAP CERAMIC CHIP 33pF GRM36C0G 330J 50PN C104 C106 C112 C114 CAP CERAMIC CHIP 47pF GRM36C0G 470J 50PN...

Page 55: ... J 1 16W 1005 0402 MCR01MZSJ431 R722 RES CHIP 1 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ102 R721 RES CHIP 2 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ202 R119 R112 R113 R201 RES CHIP 10 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ103 R202 R103 RES CHIP 11 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ113 L110 CHIP INDUCTOR 1005 2 7nH HK 1005 2N7JT L202 CHIP INDUCTOR 1005 3 9nH HK 1005 3N9JT L100 CHIP INDUCTOR 1005 4 7nH HK 1005 4N7J...

Page 56: ...2 768Khz 30ppm 4 1 0 3 1 4t CC5V D501 DIODE RB520S 30 D601 DIODE CRS08 D621 DIODE HVD142KRF CON301 SYSTEM I O CONNECTOR 18Pin 1005 0018 307 CN305 B2B CONNECTOR LCD 24Pin Socket 1 5t AXK5F24335P CN600 SIM CONNECTOR 1318723 6 CN601 BATTERY CONNECTOR HB5P002 U600 COMPARATOR N C V300 V301 V302 V303 VARISTOR 1005 SIZE HIGH SPEED AVLC5S02050 50pF V304 V305 V306 V601 V602 V605 V606 V607 V608 V609 V610 V3...

Page 57: ...F 1608 EMK107BJ104KA T C516 CAP CERAMIC CHIP 220nF 1608 LMK107B224KA T C416 C507 CAP CERAMIC CHIP 1uF 1608 GRM39Y5V 105Z 10PT C412 C609 C302 CAP CERAMIC CHIP 2 2uF 1608 JMK107F225ZA C518 CAP CERAMIC CHIP 2 2uF 2012 LMK21BJ225MG T C602 CAP CERAMIC CHIP 10uF 3216 GRM42 6X5R 106K 6 3 C604 C606 CAP CERAMIC CHIP N C C616 CAP CERAMIC CHIP 1608 N C R500 R501 R502 R503 RES CHIP 0 ohm 5 J 1 16W 1005 0402 M...

Page 58: ...16W 1005 0402 MCR01MZSJ124 R614 R616 RES CHIP 180 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ184 R334 RES CHIP 200 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ204 R505 RES CHIP 220 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ224 R336 RES CHIP 1 Mohm 5 J 1 16W 1005 0402 MCR01MZSJ105 R301 4 RESISTOR ARRAY MNR04 10K R605 RES CHIP 0 2 ohm 1 RLC20R20FTP R615 RES CHIP 100 Kohm 1 F 1 16W 1005 0402 MCR01MZSF1003 1 R606 R609 R430 RES ...

Page 59: ...V715 V714 VARISTOR 1005 SIZE HIGH SPEED AVLC 5S 02 050 V702 V703 V704 V705 V706 V707 V708 V709 V710 V711 V701 V700 C700 CAP CERAMIC CHIP 100nF GRM36Y5V 104Z 16PN R713 R719 R715 R718 RES CHIP 30 ohm 5 J 1 16W 1005 0402 MCR01MZSJ300 R711 R716 RES CHIP 10 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ392 R703 R403 RES CHIP 47 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ473 R712 R717 RES CHIP 100 Kohm 5 J 1 16W 1005 0402 M...

Page 60: ...9 7 Electrical Parts List Memo ...

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