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Related Manuals for Micromax X556
Summary of Contents for Micromax X556
- Page 1 S120 L2 Service Manual Please paste Handset Picture here...
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Page 2: Technical Specifications
S120 L2 Service Manual 1. Technical Specifications : Please fill below information in Remarks, Below given remarks are for reference only Particular Remarks Key Matrix For Flashing SPRD Flashing tool Chipset SC6531DA Android Version Processor Frequency 900/1800MHz Network Mode 32Mb 32Mb Internal memory Expandable Memory... - Page 3 S120 L2 Service Manual 3. L2 Level trouble shooting Please add trouble shooting/ Repairing steps against below given symptoms Images must paste against every suggested troubleshooting hint 1） Main Components Motor...
- Page 4 S120 L2 Service Manual Back Camera Receiver 2）Display issue Description Reason Solution FLASH THE SW Segments missing, Fading, Soldering issue Re-soldering the LCD Contrast issue, Black lines, Color issue, Backlight issue, Blank LCD issue Change the LCD display, Bad pixel, Flickering Refer to the service guide L3 Mechanically broken LCD issue...
- Page 5 S120 L2 Service Manual LCD TESTING JIG 3）Camera Description Reason Solution Soldering issue Re-solder it Bad image Camera issue Change it Refer to the service guide L3 Soldering issue Re-solder it Camera not ready Camera issue Change it Refer to the service guide L3 Soldering issue Soldering issue DEAD,No functionality...
- Page 6 S120 L2 Service Manual Back camera with flashlight 4）Speaker Description Reason Solution The SPK with dust Clean the SPK SPK foam issue Change it Noise/crack Spk issue Change it Refer to the service guide L3 Soldering issue Re-soldering it No volume SPK issue Change it Refer to the service guide L3...
- Page 7 S120 L2 Service Manual 5）Microphone Description Reason Solution Some dust with MIC Clean the MIC Assembly issue Assembly it Noise with uplink side MIC issue Change it CPUor related component Refer to the service guide L3 Soldering issue Re-solder it Volume low/no volume with uplink...
- Page 8 S120 L2 Service Manual 1, The volume of good mic K is 2.2kΩ +/-0.5%2，Soldering temperature is 330+/-10℃ 6）Receiver Description Reason Solution There is dust with receiver Clean the receiver Noise/crack Receiver issue Change it Refer to the service guide L3 Connection issue Assembly it again Receiver issue...
- Page 9 S120 L2 Service Manual RECEIVER The volume of RECEIVER is 32Ω +/-15% Ohm(at 1KHZ,179mV input) 7）Vibrator Description Reason Solution Motor assembly issue Assembly it again Vibrating properly Motor issue Change it Motor soldering issue Soldering it again No vibrating Motor issue Change it Refer to the service guide L3 ...
- Page 10 S120 L2 Service Manual Motor 8）Battery Description Reason Solution The voltage of battery is more than the voltage of battery is less 1V, and its volume is 150mΩ+/-10%, than 3.3V then the battery is good, you can charge it by DC power (4V) directly no output the voltage of battery is less Keep charging it until its voltage to be...
- Page 11 S120 L2 Service Manual 9）Earphone Description Reason Solution earphone issue change the earphone SIDE open the housing of MIC, check and Cable broken WORKING solder the cable CPU or charging IC with issue Refer to the service guide L3 open the housing of MIC, check and Cable broken solder the cable Noise...
- Page 12 S120 L2 Service Manual EARPHONE The volume between pin1 and pin4 is 32Ω+/-1Ω, the volume between pin2 and pin4 is 32Ω+/-1Ω, then the spk of earphone is OK; The volume between pin3 and pin4 is 2.2KΩ+/-1Ω,then the MIC is OK. 10）Data Cable Description Reason...
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Page 13: Data Cable
S120 L2 Service Manual DATA CABLE 11）Charger Description Reason Solution Data cable issue Change the data cable I/O connector Change the I/O connector No charging Charger issue Change the charger Refer to the service guide L3 Data cable issue Change the data cable I/O connector Change the I/O connector Charging slow... - Page 14 S120 L2 Service Manual CHARGER CHARGER 12）No signal Description Reason Solution the connection of antenna is not Assembly it again good SIM issue use a fresh SIM to verify it SIM slot issue Refer to the service guide L3 No signal RF IC issue Refer to the service guide L3 Calibration data missing...
- Page 15 S120 L2 Service Manual DATA CABLE Bluetooth Description Reason Solution Re-assemble BT antenna bracket assembly issue No signal MB is broken Refer to L3 service manual...
- Page 16 S120 L2 Service Manual Keypad Description Reason Solution MB is broken Refer to L3 service manual Keys doesn't work change it again Keys is broken Flash Light Description Reason Solution MB is broken Refer to L3 service manual Light doesn't work LED is broken change it again FM / Radio...
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Page 17: Memory Card
S120 L2 Service Manual Heating Description Reason Solution Battery issue Change a new battery Device Heating MB issue Refer to L3 service manual Memory Card Description Reason Solution SD Card Issue Change a new SD card SD Card Issue SD card slot issue Clean SD card Connector Still not working Refer to L3 service manual... - Page 18 S120 L2 Service Manual 19) Canot send the SMS/MMS Description Reason Solution SERVICE NO ISSUE Contact the operator Canot send the SMS/MMS SIM no service use a fresh SIM to verify it Use the 3 party APK Flash the SW Thanks For any query or suggestion please write to tech.help@micromaxinfo.com...
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