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Level 3 Service Manual Draft 1.1 ™ DIGITAL WIRELESS TELEPHONE Model A920/ A925 UMTS 2100MHz/ PCS 1900MHz/ DCS 1800MHz/ GSM 800MHz...
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With respect to the use of this product, in no event shall Motorola be liable for any loss of profit or any other commercial damage, including but not limited to special, incidental, consequential or other damages.
Software updates need to be handled in a controlled manner. Carrier software approvals need to be consid- Full-rate Charger (PSM5049A) ered before initializing a flashing procedure. Consult a Motorola representative to ensure that the correct soft- Interface Solution ware is programmed. USB PST Tool Kit (S8951)
PST. result in a nonfunctional (Bricked) 3G terminal. Insure that the Motorola service representative also pro- The A920/A925 contains a set of Flash EPROMs for vides installation documentation, security key require- the Adjunct Processor and a separate set of Flash ments, and other related information.
Click on the Flash button to begin flashing. DO Launch the PST application by choosing Start/ NOT interrupt any hardware connections dur- Programs/Motorola PST/Flash & Test Com- ing the flash process. Connection interruptions mands. may cause the flashing process to fail and ren- der the 3G terminal non-operational.
Use the Browse button to open the “Combo” flash file. In order to successfully flash a A920, the following se- quence is recommended. Select the device for flashing. 1. Backup user data Select the device again to enable Flash.
Application Installation* The user needs to install the Handset Test Command application before it can be accessed. Obtain the file, “testcmdui.sis”, file from your local Motorola service representative. Use the following procedure to prop- erly install the handset test command application.
The user can select Hexidecimal or decimal. Under the Edit menu, the user can also clear a field or all fields The Back key will return the user to the App Launcher screen Preliminary 2 - 2 Motorola Confidential Proprietary...
1. After all the fields are entered the user shall select Test. The results are then Figure 9. Keyboard Entry shown on the screen. Figure 7. Fields entered Separately 2 - 3 Preliminary Motorola Confidential Proprietary...
If not, they shall get an Error Message as follows: Figure 11. Invalid Entry After the user presses, "Continue", they shall be taken back to the field where the incorrect entry method was found. Preliminary 2 - 4 Motorola Confidential Proprietary...
TDMA: command not supported in current Call Stack Test Mode error: length specified in command header greater than length received by transport 1110b (0x0E) layer 1111b (0x0F) error: irrecoverable error; phone state has been lost. Phone is being powered down Preliminary 2 - 6 Motorola Confidential Proprietary...
005 = Grey scale block: 16 level, Black to white 006 = Horizontal Zebra Line 014 = Eight Color Box Pattern Data for 9, 000 = Front Light Off 001 = Front Light On, Full Intensity 2 - 9 Preliminary Motorola Confidential Proprietary...
0 and 16383. If it is set to 0xFFFF the TEST_TASK will derive the TX_FREQ_ID from the RX_FREQ_ID. Note : If a valid RX_FREQ_ID is entered, TX_FREQ_ID must be set to FFFF. Preliminary 2 - 10 Motorola Confidential Proprietary...
Manual Test Procedures Introduction Non-Signalling Test Measurements In an event that the phone exhibits RF failures that pre- The phone allows keypad and computer controlled test- vent call processing, the service technician may need to ing of various digital test parameters. perform some non-signalling tests.
Serial Cable (SKN6315A¹) with CE converter (SYN0279B¹) Note: If handset test commands are being used, a con- trol interface is not needed. ¹Contact your local Motorola dealer for ordering ²Contact AMS Software and Elektronik GmbH for ordering Preliminary 3 - 2...
PCL (MS) 1 (28.0 dBm) or 700 (DCS) Menus Timing Advance Set Broadcast channel level to -85dBm Set Traffic Channel (TCH) to 38 (GSM) or 512 (DCS) Set Traffic channel level to -85dBm 3 - 3 Preliminary Motorola Confidential Proprietary...
- 25 Threshold UE Power Control Default Settings Connect hardware as illustrated in figure 4. Connection UE Signal BS Signal Network Sync. Note: Control interface doesn’t need to be con- nected at this time. 3 - 7 Preliminary Motorola Confidential Proprietary...
Refer to page 3-2 for a list of Hardware. Refer to Fig- ¹10*0*5 for PCS mode ure 13 for a configuration illustration. ²20*700*0 for DCS Channel 700; 20*661*0 for PCS Channel 661 ³45*0 for DCS/PCS Power level 0 3 - 9 Preliminary Motorola Confidential Proprietary...
Radio Comm Test Commands and then click Set Click on 900/1800 (GSM/DCS) or 1900 (PCS) Select 06 and then click ON Enter Channel 20 Click INIT Click Execute Verify return data is approximately -105 dBm Preliminary 3 - 10 Motorola Confidential Proprietary...
Field 8 Long scrambling Field 9 SF256, Slot format 0 Field 10 SF256, Slot format 0 Field 11 Channelization Code Field 12 000000000 Scrambling Code Note: Enter 1 in field 2 to disable carrier 3 - 11 Preliminary Motorola Confidential Proprietary...
¹0x0015 -> 21 dec -> +21dBm ²0x0080 -> 128 dec -> (128-256 = -128 dBm) Handset Test Commands 3*0*1 Enable Vibrator 3*0*0 Disable Vibrator Radio Comm Test Commands Enable or Disable Vibrator Verification Verfiy vibration function when enabled. Preliminary 3 - 12 Motorola Confidential Proprietary...
Enhanced Full Rate Verification Verification Speak into the handset mic and listen for undistorted speech in the handset speaker. Speak into the headset mic and listen for undistorted speech in the headset speaker. 3 - 13 Preliminary Motorola Confidential Proprietary...
Currently not supported and headset speaker Verification Listen for undistorted audio. Enable Vocoder loopback at Enhanced Full Rate Verification Speak into the headset mic and listen for undistorted speech in the headset speaker. Preliminary 3 - 14 Motorola Confidential Proprietary...
Select Build Time Click “FL Off” to disable backlight and click “Get” to re- Click “FL On-Full” to enable backlight trieve Build Date Verification Verify that the backlights respond for each issued com- mand. 3 - 15 Preliminary Motorola Confidential Proprietary...
Grey scale block in figure 14. This test can (uniform/smooth). also be used to confirm that the color intensity is linear. Figure 23. Eight Color Box Pattern Figure 24. Grey Scale Block Preliminary 3 - 16 Motorola Confidential Proprietary...
Display Pixel Defect (Dark) Handset Test Commands 55*2*000 All pixels off (all black) RadioComm Test Commands Select All Pixels On and click “Set” Verification Verify that no greater than two pixels are on. 3 - 17 Preliminary Motorola Confidential Proprietary...
62*4*3*012¹ Enable Green LED ¹000 to disable RadioComm Test Commands Select Red LED or Green LED to enable. Deselect Red LED or Green LED to disable. Verification Verify that the Red and Green status LEDS activate. Preliminary 3 - 18 Motorola Confidential Proprietary...
Use of lower quality RF probes will result in signal level differences. Unmodulated CW TX test Handset Test Commands Not Supported RadioComm Test Commands Under Bluetooth, select parameter 84 and click execute, then select 81 and click execute. 3 - 19 Preliminary Motorola Confidential Proprietary...
The Focus chart and Grey chart can be that will determine whether the camera function of a printed using any B/W printer. Motorola terminal is under normal operating conditions. For best results follow this recommended setup, In order to successfully send test commands to the phone under test, the phone doesn’t need to be in suspend...
Level 3 Service Manual Manual Test Procedures Figure 9. Camera Test Configuration Camera Test Charts Phone under Test Camera View (SKN6311A) Charger (SPN5049A) Serial (SYN0279B) Desktop Charger SPN5078A Velcro (or equivalent) Outlet Computer (110V/220V) 3 - 21 Preliminary Motorola Confidential Proprietary...
(3) the grey scale chart. The user will be required to print all images found in Appendix A. Handset Test Commands Not supported Radio Comm Test Commands Under “Common Features” select Camera Click “Take Picture” Preliminary 3 - 22 Motorola Confidential Proprietary...
Good white balance on blocks 19 through 24. Good color reproduction on blocks 13 through Verify that there is minimal shading deviations on all four corners when compared to the center of the image. 3 - 23 Preliminary Motorola Confidential Proprietary...
To get the most accurate readings, take measurements The service diagrams were carefully prepared to allow nearest to the labeled measurement on the service dia- a Motorola certified technician to easily troubleshoot gram. cellular phone failures. Our professional staff provided...
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A920: Antenna Circuit N_BAND_0 U500 page XX C910 Q901 TX_RX_ERROR U1000 RX_EN_LIFE page XX VRF_TX_2_775V U500 E3503 page XX page XX HL_TX_EN C909 LV_EXC_EN U101 R812 page XX Q902 page XX GSM_EXC_EN NB_EXC_EN* Q902 U1000 page XX page XX VRF_HV_5V...
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A920: GSM RX Front End GSM_RX T650 RX_Q+ T660 DCS_RX RX_Q- MAGIC RX_I+ RX_I- U625 PCS_RX T670 LIFE ÷2 ÷2 or 4 RX_EN_LIFE ÷5 or 3 AUX_SPI_CLK AUX_SPI_DATA LIFE_CE MAGIC RX_VTUNE Filter RX_VCO Description The EGSM, PCS and DCS signals must first pass through baluns before reaching the LIFE IC. Since the LIFE expects differential inputs, the baluns will provide this.
A920: GSM Receiver Front End MAGIC_SF C537 page XX RX_I+ U500 page XX TP601 R610 VRF_RX_2_775V C671 PCS_RX L3560 FL001 page XX page XX VRF_REF_2_475V E3552 C600 T670 page XX C670 U630 C661 DCS_RX RX_I- FL001 U500 page XX U600...
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A920: GSM RX Back End (Magic LV) RX_I Balanced Anti- Σ∆ Complex Filter RX_I_X Prgmable BFSR Aliasing Dig CH Sel filter Serial Complex DET_FLAG NB_RX_ACQ Interface IF Notch Front End BCLKR RX_Q Highpass Anti- Σ∆ Filter RX_Q_X Aliasing filter Dig Quad...
A920: Magic LV (Receiver Back End) RX_I+ U500 U600 page XX RX_I- U600 page XX RX_Q+ U600 page XX RX_Q- U600 MAGIC LV page XX C540 C542 FL510 TP504 E977 R537 R536 FL500 NB_RX_ACQ U1000 page XX BFSR U1000 page XX...
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A920: MAGIC LV Control Functions MAGIC LV N_BAND_1 U500 RF_TOP N_BAND_0 (Control) TX_KEYM Filter MAGIC_SPI_CS AOC_DRIVE 80 bit MAGIC_DX Serial DET_AOC MAGIC_SPICLK Σ DET_REF AUX_SPI_CLK AUX_SPI_DX LIFE LIFE_CE Cntrl VRF_RX_2_775V VRF_REF_2_475V VRF_REF_2_475V Superfilter VRF_DIG_1_875V Description MAGIC_DIG_1_875V The MAGIC LV contains 4 tracking regulators and one superfilter, which will generate the supplies for most of the IC as well as the front end and the main VCO. The tracking regulators derive their internal power from the REG_REF pins.
A920: GSM TX VCO N_BAND_0 U500 page XX N_BAND_1 U500 page XX N_GSM_EXC_EN Q902 page XX C705 C704 C713 R577 C710 R576 GPO3 U500 page XX L701 C701 TX_VCO_HB CPTX C701 U500 page XX page XX U700 C702 R703 C703...
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A920: GSM PA LV_EXC_EN PA_BATT+ U810 TX_VCO_LB DCS_PCS_TX U800 TX_VCO FL020 TX_VCO_HB GSM_TX AOC_DRIVE N_BAND_0 MAGIC LV DET_AOC DET_REF Description U800 is a tri-band PA module that operates in EGSM, DCS and PCS bands. The nominal expected maximum gain is ~30dB. .
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A920: GSM TX DCS_PCS_TX FL001 page XX U810 FL020 GSM_TX FL001 page XX LV_EXC_EN Q902 page XX C805 DET_AOC U500 C800 page XX R822 U800 N_BAND_0 U700 PA_BATT+ J5400 page XX C832 page XX C804 C806 GSM PA C802 C801...
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A920: WCDMA RX Downconverter (MAX2388) FL310 WCDMA RF_LO U310 FL320 CDMAPOS MAX2309 CDMANEG WCDMA_RX FL300 MAX2388_SHDN* Harmony RX_RF_ATTEN Lite Description The first IC in the WCDMA Rx line up is U310 (MAX2388), which is an LNA and down converter mixer combination. The RX frequency will be mixed down to an IF frequency of 190MHz.
A920: WCDMA RX Demodulator (MAX2309) ASPI_CLK Harmony ASPI_DATA RX_I+ Lite MAX2309_CS Interface RX_I- CDMAPOS RX_STBY* MAX2388 Bias CDMANEG 90° ÷2 MAX2309_SHDN* Harmony Lite RX_Q+ RX_Q- Harmony Lite REF_FREQ ÷R ÷M Ø MAX2309_LOCK Loop Tank Filter Description The MAX2309 is an IF quadrature demodulator with the signal paths consisting of a variable-gain amplifier (VGA) and an I/Q demodulator. The IF LO synthesizer‘s reference and RF dividers are fully programmable through the 3-wire serial bus (ASPI_CLK, aSPI_DATA, MAX2309_CS).
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A920: WCDMA RX MAX2309 VRF_RX_2_775V L3560 page XX TP340 R361 RX_VCCA R344,R315 page XX page XX RX_VCCA R361 page XX C334 C335 REF_FREQ L330 U101 R344 RX_VCCA page XX R361 R339 MAX2309_SHDN page XX U101 page XX R335 RX_I+ C344...
A920: Harmony Lite (Control Section) SPI_CE SPI_DATA_IN U1000 SPI_DATA_OUT page XX SPI_CLK C116 C118 C115 RX_RF_ATTEN HARMONY_CS R305 T100 U1000 page XX page XX C103 R341 WB_RX_ON page XX MAX2361_SHDN U1000 R232 C102 page XX page XX TX_STBY* WB_RX_SLOT R231...
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A920: Harmony Lite (Synthesizer Section) Harmony Lite U101 BLUE_CLK_EN* BLUETOOTH U5600 Synthesizer Section) VRF_RX_2_775V U5670 15.36M_CLK_EN* TCXO_EN_IN TCXO_EN_OUT CODEC_CLK_EN* Q130 HELEN SPI/ Sequence BLUETOOTH AFCDAC REF_OSC_15_36M Prescaler Manager Counters U5600 Y130 RX_LO WCDMA U140 U150 Charge REF_OSC_IN Ø Pump TX_LO...
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A920: Harmony Lite (Synthesizer Section) RX_PRE C145 C116 page XX VRF_RX_2_775V C118 L3560 page XX Q130 C115 T100 C103 RX_CP U101 R141 C102 page XX RX_SF_OUT U140 C101 page XX Harmony Lite C106 BB_CLK_15_36M U1000 page XX 15_36M_CLK_EN* U1000 REF_FREQ...
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A920: Harmony Lite (TX Section) HARMONY LITE U101 (TX section) PN Seq Demux Gen. 10 bits TX_I+ TX_I- BBIF_TX Phase Demux WCDMA Tracking (9:0) DCOC Loop Gain U1000 10 bits Equal TX_Q+ BBIF_TX_FRAME TX_Q- BBIF_CLK Description The BBIF(BBIF_TX) is the transmit data path for transferring digitally sampled I / Q data from the POG. The demultiplexing unit performs the I/Q deinterleaving func- tion to supply separate I and Q channel data into the transmit FIR filters.
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A920: Harmony Lite (Transmitter Section) C116 C118 Q130 C115 T100 C103 PA_BIAS2 U420 page XX PA_BIAS1 C102 U420 page XX C101 U101 HL_TX_EN C106 FL001 page XX VRF_TX_2_775V E3503 AOC_VCC E100 page XX Harmony Lite TX_I+ TX_I- U200 TX_Q+ E111...
A920: WCDMA Transmitter VLOAD_SW U101 page XX VRF_TX_2_775V E3503 page XX PA_BATT+ J5400 page XX V_DETECTOR MAX2393_OUT R453 U101 C200 C422 page XX page XX FL410 R455 RF_DETECT U101 C452 page XX TEMP_COMP U420 U101 page XX U410 WCDMA_RF_OUT FL460...
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A920: Charger EXT_B+ Q3963 PCAP RAW_EXT_B+ U3000 Conn R3961 Q3967 OV_SENSE ISENSE Charger OV_GATE CHRGC Q3960 PCAP MIDRATE_1 U3000 Q3966 R5480 CR3960 MAIN_FET CR3961 BattSense BATT_FDBK BATT+ Conn Q3964 BATT+ BATT_THERM Batt Conn BATT_IO Description The majority of the charging circuit is integrated in PCAP. This includes a digital to analog converter, analog to digital converter, battery feedback switch, thermistor switch/pullup, and current control sense.
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A830: TX Audio LOGIC_SENSE EXT_MIC AUDIO_IN HS_MAKE_DETECT MIC_OUT MIC GAIN Audio Filter HS_MIC Circuit ASAP_RX ASAP_FS MIC_BIAS2 ASAP_CLK AUX_OUT Audio Filter AUX_MIC- Circuit J4100 MIC_BIAS1 PCAP Description The Internal Microphone is a single ended part. Following the Internal microphone path, the microphone is biased by R4103 to provide a MIC_BIAS of 2.0V from pin MIC_BIAS1 of PCAP.
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A920: Legend Ref Freq: VMAIN_1_55V E3203 page XX POG_LVIO POG_LVIO R1001 page XX U1000 page XX POG_RESET* BB_CLK_13M U1300,U1310 C525 page XX page XX page XX VLVIO_1_95V VLVIO_1_95V E3352 E3352 RF_OSC_15_36M page XX page XX U130 page XX C1011 R1001...
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A920: GSP_WAKEUP* GPS_TX U6000 GPS_ON_B GPS_RX page XX GPS_BOOT_SEL GPS_RESET STANDBY U2071 NB_RX_ACQ SWB+_EN page XX FL500 U5000 NB_EXC_EN* page XX page XX BFSR Q906 FL500 BATT_IO page 4-3 page XX R5485 FL500 TX_RX_ERROR page XX page XX U908 BCLKR...
A920: POG Memory V_FLASH U1300,U1310 page XX page XX VMEM_1_875V U3000 page XX V_FLASH_IO V_FLASH_IO R1304 R1304 page XX page XX V_FLASH R1303 VMEM_1_875V FLASH_12V page XX U3000 TP1300 page XX page XX CR1300 V_SDRAM V_FLASH_IO R1304 U1400 V_SDRAM_IO page XX...
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A920: Bluetooth IC BLUETOOTH uP Unit BLUE_HOST_WAKE* A5600 (UPU) U5600 BLUE_WAKE* BLUE_CLK_EN* BT_RX- USB_DP U5600 HELEN BT_RX+ USB_DM Bluetooth 2.4GHz Baseband Core Transceiver FL5601 BT_TX+ (BBC) Peripheral BT_TX- Transport Unit (PTU) ASAP_RXD ASAP_TXD ASAP_FS PCAP ASAP_CLK Frequency Power CLK_32_768K Synthesizer...
A920: GPS Baseband Circuit GPS_ON_B U1000 page XX REF_FREQ R133 page XX GPS_RESET* U1000 page XX JTDI U6000 VHVIO_2_775V page XX E3402 JTCK page XX U6000 VGPS_BB_2_775V U6010 page XX VGPS_BB_2_775V page XX GPS_RESET* U6010 U1000 page XX page XX...
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A920: Camera 208x320 TFT 65K color PCAP IrDa_RX VAUX4_3V Video Reset* Buffer YUV 4:2:0 VSYNCO, HSYNCO Reset* U7605 VODATA3 Conexant Reset* YUV 4:2:2 Backend VSync, HSync Real Time Data Video VODATA[7:0] Transmission YUV 4:2:0 MPEG4/H.263 Processor Encoding Conexant CAM_ICLK ASIC...
A920: Video Circuit VCAM_3V U3910 VSYNC page XX J7600 CAM_RESET* page XX HSYNC U2000 J7600 page XX page XX VCAM_3V U3910 page XX ICLK CAM_ICLK_OUT J7600 C7621 page XX page XX U7600 J7600 Pixel SENS_DATA(9:0) VODATA7 page XX VODATA6 VODATA3...
A920: Helen Legend VCC_OUT U3000 Sig Gen: -20dBm C2001 VCO: HELEN_VDD2 E2013 page XX HELEN_VDD R2097 Y2000 page XX AP_F_CE_0* VAUX4_3V E3900 U2300 page XX page XX VLVIO_1_95V E3352 AP_HKSW page XX U5002 V_HFLASH_IO page XX R2011 R2051 VHOLD_EXT_EN C2002...
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A920: Helen RXD_VMIN USB_TXEN* U3000 TXD_VPOUT SE0_IN page XX RTS_XRXD USB_VPIN AP_SD_CKE_HL U3000 DITHER_CLK page XX RESET_OUT* U7640 U3000 CAM_ROT_DETECT page XX page XX R7615 R3997 CAM_ICLK page XX page XX R7620 OPT2 U5003 CAM_LCLK page XX page XX R7635...
A920: Helen Flash Memory AP_FDATA(15:0) U2000 page XX V_HFLASH_IO R2304 AP_F_ADD(23:0) U2000 V_HFLASH_TRUM_CORE page XX page XX R2360 C2306 page XX U2380 C2350 PCAP_RESET* U3000 page XX PCAP_RESET* C2033 BB_RESET* U3000 U2000 page XX AP_F_RST* C2034 C2032 page XX U2000...
A920: Helen SDRAM USER_OFF R2404 U3000 page XX AP_SD_CS* U1000 page XX VCC_OUT VHVIO_2_775V E3402 U3000 C2401 page XX page XX Q3981 VHOLD_EXT_EN U3000 page XX VMEM_1_875V TP4504 U3000 page XX V_HDRAM_IO R2401 page XX V_HDRAM_IO R2098 page XX U2000...
Parts List Introduction Motorola maintains a parts office staffed to process parts orders, identify part numbers, and otherwise assist in the maintenance and repair of Motorola Cellular prod- ucts. Orders for all parts listed in this document should be directed to the following Motorola International Logis-...
Parts List A920/925 Electrical Parts List Electrical Parts List The following table lists the electrical parts list for the A920/A925 UMTS/GSM handset. Table 10. Electrical Parts List Reference Part Description Number Number 3987724N02 CONTACT A6050DNP 3988220M01 CONTACT C001 2113743N03 CAP, 1pF...