Related Manuals for FLY DS210
Summary of Contents for FLY DS210
- Page 1 DS210 Service Manual Series No. Modification time Version No. Modified by Cause of modification Remark 2009/9/11 V1.0 Creation CONTENTS...
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Page 2: Table Of Contents
1 INTRODUCTION OF DS210 ........................................3 ID ............................................... 3 ..................................... 4 ECHNICAL PECIFICATION RF C HARACTERISTICS ........................................4 PCBA OVERVIEW ............................................4 EXPLANATION OF SCHEMATIC ......................................8 YSTEM UNCTIONAL IAGRAM ......................................8 RINCIPLE OF CIRCUIT ....................................... 8 3.2.1 Main function of RF ....................................... 8 3.2.2... -
Page 3: Introduction Of Ds210
1 Introduction of DS210 1.1 ID DS210 is a real dual-SIM and dual-online phone. It’s developed and designed based on the MTK platform. Besides the basic call function, DS210 provides you with a collection of practical functions, including 262k colors screen, 2.0M pixel camera, Bluetooth, FM, File manager(T-Flash card supported), recorder, MP3, MP4 player. -
Page 4: Main Technical Specification
includes antenna interface, FEM, PA and transceiver (power supply belongs to BB). BB includes Baseband processor MT6235 (integrate PMU), NAND + SDRAM, LCM, CMOS Sensor, Bluetooth, FM and keyboard. The MT6139, which is the core IC in RF, adopts direct-conversion architecture with automatic, and supports EGSM/DCS and 26MHz VCXO reference, with a fully-integrated LC-tank VCO and integrated regulator. - Page 5 U6235 (MT6235 Baseband and Power U901 (Hall sensor) Management IC) Relevant failures： U105 ( 26MHz Crystal ) Relevant failures: Unable to detect slide event Relevant failures： Unable to power on / Unable to upgrade Unable to power on / Unable to / RF module work abnormal / LCD display upgrade / Baseband work problem / Camera problem / Unable to abnormal / RF Module work charge etc ...
- Page 6 CON602 (T‐flash card connector) CON601 (SIM1 card connector) Relevant Failures: Relevant Failures: Unable to detect T card insert / T Unable to detect SIM1 / SIM1 read BT201 (Backup battery) card read or write abnormal or write abnormal Relevant Failures: Unable to keep system time when power off CON406 (Camera connector) Relevant Failures: Unable to open Camera function / U601 (FM chip) Display flower screen when Relevant Failures: preview photos Unable to search FM channel or FM signal is poor. S501~S502 (Volume side key) Relevant Failures: ...
- Page 7 LED3~LED4 (Light) Relevant Failures： Functional keypad backlight doesn’t shine. LCD PCB Bottom Side CN1 (LCD Connector) Relevant Failures： LCD backlight abnormal /LCD display abnormal B1 (Receiver FPC Soldering Pad) Relevant Failures： Unable to hear any voice with each other during the call U1 (LCD Backlight Driver IC) Relevant Failures： CN3 (FPC Connector) LCD backlight doesn’t shine Relevant Failures： Microphone has no sound / LCD backlight abnormal /LCD display abnormal / Receiver has no sound / Functional key PCB B3 (MIC soldering joints) ...
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Page 8: Explanation Of Schematic
Base-station through the antenna. The signal interface between RF circuit and Baseband is analog Baseband I/Q signal. The performance of RF circuit can directly affects the signal transmission quality of the mobile phone. The schematic of RF block for DS210 is show blow:... -
Page 9: Receiver
From the chart we can see that the RF part is mainly composed of a transceiver chip (MT6139), some RX SAW filters, reference crystal oscillator, power amplifier & antenna switch module, antenna and the matching components between each other. 3.2.2 Receiver The receiver section of MT6139 includes Quad-band Low-Noise Amplifiers（LNAs）, RF quadrature mixers, channel... -
Page 10: Transmitter
3.2.3 Transmitter The transmitter section of MT6139 includes Baseband I/Q filters, I/Q modulators, frequency dividers, output buffers and a bias-core circuit. BB I/Q signals are fed into the one-pole RC low-pass filter first for better out-of-the-band noise performance. The I/Q modulators are responsible for translating the BB I/Q signals to the transmitting frequencies. -
Page 11: Digital Calibration Loop
32 to 127. A conventional digital-type Phase-Frequency Detector (PFD) with a charge pump is used for phase comparison. By changing the output current of the charge pump, the phase detector gain can be programmed from 50/2p mA/rad to 400/2p mA/rad. To reduce the acquisition time or to enable fast settling time-for multi-slot data services such as GPRS, a digital frequency calibration loop along with a fast-acquisition system are implemented in the RF synthesizer. -
Page 12: Principle Of Baseband Circuit
3.3 Principle of Baseband circuit 3.3.1 Baseband chip—MT6325 The Baseband chip MT6235 is a single-chip solution for GSM/GPRS/EDGE mobile phones. Based on the 32-bit ARM926EJ-s RISC processor, MT6235 support GPRS Class 12. It is the core part of the whole system, it is in charge of the management of all the other parts. -
Page 13: Channel Power Supply
3.3.2.1 10 channel power supply Power Voltage(V) Current( max )(mA) Function VCORE Digital Core Voltage VMEM External Memory Voltage CAMERA_A Analog Camera Voltage CAMERA_D Digital Camera Voltage RF Voltage AVDD Analog Voltage Digital IO Voltage VUSB USB Voltage VSIM / VSIM-2 1.8 or 3.0 80(sim1) 20(sim2) SIM Voltage... -
Page 14: Charge Circuit
3.3.2.3 Charge Circuit The typical charging procedure can be divided into three phases: pre-charging, constant current mode charging, and constant voltage mode charging. Picture 3.3.2.3.2 shows the flow chart of the charging procedure. Most of the charger circuits are integrated in PMU of MT6235 except for one PMOS, one diode and one accurate resistor for current sensing. -
Page 15: Sim Interface
3.3.3 SIM interface 3.3.4 Principle of audio frequency circuit The Audio Frequency( AF ) circuit includes four parts: receiver, speaker, microphone and headset. The speaker is drove by an Class D amplifier. The baseband chip sends the AF signal, MP3_OUTL, to the amplifier. After the AF signal is amplified, it goes to the speaker. -
Page 16: Lcd Circuit
3.3.5 LCD circuit LCD occupies 18 bits of the data interface( LCM_D0 ~ LCM_D17), five control bus(LCM_CS is LCM enable signal, LCM_RS is LCM select signal for data and command, LCM_WRB is LCM write signal, LCM_RDB is LCM read signal, LRSTB is LCM reset signal), two power supplies(V_LCM is LCD analog supply voltage 2.8V, VDD is LCD I/O supply voltage 1.8V). -
Page 17: Camera Circuit
2.0M pixels. With its high performance application platform, MT6235 allows efficient processing of image and video data. Image signal processor inside MT6235 support VGA/XGA sensor YUV422/RGB565 interface. DS210 adopts YUV422 interface. The ISP supports many functions, Brightness, Contrast, Saturation, Hue Tuning and Input Image Grab Window. -
Page 18: T-Flash Card Circuit
System interface DS210 use a 12pin port as system interface. Pin1 and Pin2 are used for charging battery. Pin3 and Pin7 are used for downloading software or dubugging. Pin4 and Pin6 are used for USB communication. Pin5 is PWRKEY to generate a power on interrupt. -
Page 19: Fm Circuit
In DS210, MT6235 supplies power for FM chip, signal AVDD( 2.8V ), and communicates with the FM chip through I2C bus. The audio signals, FM_INL and FM_INR, are dealt with MT6235’s audio block, then sent to system interface to headphone. -
Page 20: Key Interface
3.3.11 Key interface 4 Main Spare Parts Introduction... -
Page 21: Failure Analysis
5 Failure analysis 5.1 Level 1 Primary Repair 5.1.1 Upgrade software 5.1.1.1 Install USB cable driver 1、Decompressing file “PL2303_Prolific_DriverInstaller_10311”, click “PL2303_Prolific_DriverInstaller_10311.exe”to install. 2、Plug into N87 update cable，The computer will automatically install the driver file until the driver has been installed ,on the bottom right corner of tips ,it will show successfully 3、Open “my computer”—“manage”—“Device Manager”—“com”，it will show “Prolific USB-to-Serial Com Port(COM X)”. - Page 22 2、click“Download Agent” ,choose “MTK_ALLInOne_DA”...
- Page 23 3、Decompressing files “N87_software” Click ”Scatter-loading”，open the“N87_software”— “scatEELINK35_08B”. PS: it only need to update this file in Follow-up to upgrade Attention：After select the file, the four documents in the state need to choose (as shown in red circle) 4、Connect the phone to start the upgrade. 1)、Phone off, connect the USB upgrade line, left-click on “download”...
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Page 24: Upgrade Fail Halfway
If the upgrade still fail, you can try to delete the version check to try again. 2、 5.1.1.3 Upgrade fail halfway If DS210 upgrade fails on the halfway, Please follow these steps 1、 Download the SW on “no action” mode. -
Page 25: Replace Packages
The guidance for user to use some functions In order to properly guide the user, each maintenance engineer should be familiar with the operation of each function. You can refer to DS210 User Manual. 5.2 Level 2 Intermediate repair Disassemble and replace the broken parts, without difficult rewelding. -
Page 26: Cover Broken
5.2.1 Cover Broken Aftermarket provides spare covers, Cover A ~ D. If the Phone case is damaged or worn, please disassemble the phone and replace the corresponding Cover. It should be pointed out that if window is damaged, please replace the Cover A. 5.2.2 Replace Keypad (Structure Parts) Aftermarket provides spare keypads, function key, numeric key, volume key, and camera shortcut key. -
Page 27: Lcd Pcb Broken
5.2.10 LCD PCB Broken If LCD PCB is broken, it may result in functional key abnormal, no functional key backlight, display abnormal, and receiver function abnormal. Please replace with a good one directly, and send the broken PCB to senior repair points. -
Page 28: Power On And Initial Problem
5.3.1 Power on and initial problem Power on abnormal NO NO Check battery is contacted well? Reinstall battery Resolder CN403 YES NO Battery voltage is more than 3.4V? Recharge battery YES NO Something is wrong with related components. Check related components which Go to Level 4 connect to VBAT signal Check PMU in U6235 is well? NO Something is wrong with Measure voltage of some signals, U6235. Go to Level 4 VCORE, ... -
Page 29: Upgrade Problem
5.3.2 Upgrade Problem Upgrade problem NO Check download data cable Replace cable YES NO Resolder CON402. Check CON402 YES NO Check R433, R413, R414, T403, Resolder or replace R433, T404 R413, R414, T403, and T404 YES Check UART signal, UTXD1 and URXD1, when download is carried on NO YES Check ... -
Page 30: Power Charge Problem: Charger
5.3.3 Power charge problem: Charger Charger charge problem NO Check charger Replace charger YES Check CON402 NO Resolder CON402. YES Resolder or replace T401, NO Check T401, C218, U201, R209 C218, U201, and R209 YES Insert charger Check charge power, VCHG, on T401, its level should be 5V. YES NO Something is wrong with Check MOSFET IC (U201), pin4, U6235. Go to Level 4 GATDRV, its level should be high ... -
Page 31: Power Charge Problem: Usb
5.3.4 Power Charge Problem: USB USB charge problem NO Check data cable Replace data cable YES Check CON402 NO Resolder CON402. YES Resolder or replace T401, NO Check T401, C218, U201, R209 C218, U201, and R209 YES Insert USB data cable Check USB charge power, VCHG, on T401, its level should be 5V. YES NO Something is wrong with Check MOSFET IC (U201), pin4, U6235. Go to Level 4 GATDRV, its level should be high ... -
Page 32: Rf Signal Weakness Problem (Have No Signal Even)
5.3.5 RF Signal Weakness Problem (Have no signal even) RF signal problem Antenna is poorly contacted with NO Check antenna mainboard. Replace new Cover D with antenna YES Resolder and replace related circuit Check antenna path NO components. YES Check RF transceiver（U100） Something is wrong with U100 or related NO ... -
Page 33: Lcd Display Problem
5.3.6 LCD Display Problem LCD doesn’t work NO LCD FPC connected well? Reconnect LCD FPC YES NO LCD module is well? Replace the damage YES NO LCD connector CN1 well? Resolder CN1 YES LCD backlight well? Check C8, Go to 5.3.7 LCD backlight problem C2, C4, C5, C6 voltage? YES Check if CN1 pin7 voltage is 2.8V, pin8 voltage is 1.8V? Pin10 and pin12 voltage is 0V? Pin13 voltage is 1.8V? Pin9, pin11, pin15 to pin32, voltage change between 0 to 1.8V? ... -
Page 34: Lcd Backlight Problem
5.3.7 LCD Backlight Problem Backlight doesn’t work NO Check CON901 connector well? Resolder CON901 YES Check CON901 pin18 waveform, it Something is wrong with U6235. Go to Level NO should be some pulses then keep high after slide event. YES NO NO Check if slide FPC is well or Reconnect FPC Replace the broken FPC connected well? YES NO Resolder CN3 Check CN3 connector well? ... -
Page 35: Camera Problem
5.3.8 Camera Problem Camera function doesn’t work NO Check camera FPC connect well? Reconnect FPC YES NO Replace the damage Check camera module ok? YES NO Check CON406 connector well Resolder CON406 YES NO YES Voltage on C424 is 2.8V? C424 is short? Repair C424 NO YES Something is wrong with U6235. Go to Level 4 NO YES Repair C424 Voltage on C429 is 1.8V? C429 is short? NO Something is wrong with U6235. Go to Level 4 YES NO Check IIC signal on R430 and Something is wrong with U6235. Go to Level 4 R431? ... -
Page 36: Sim I Card Problem(Phone Can't Access Sim Card)
5.3.9 SIM I Card Problem(Phone can’t access SIM card) Phone can’t access SIM card NO Check SIM card is installed well? Reinstall SIM card YES Resolder connector. If SIM card connector’s NO Check SIM card connector, contacts are distorted, replace the connector CON601, is well? YES NO YES T604 or C603 Repair C424 T604 or C603 voltage=3V / 1.8V is short? NO YES YES Something is wrong with U6235. Go to Level 4 NO ... -
Page 37: T-Card Problem(Phone Can't Access T-Flash Card)
5.3.10 T-card Problem(Phone can’t access T-flash card) Phone can’t access T‐flash card NO Check T card is installed well? Reinstall T card YES Resolder connector. If T card connector’s NO Check T card connector is well? contacts are distorted, replace the connector YES Check if MCINS signal level has NO changed after T card is inserted. YES Check voltage on C604, T card NO YES Repair T603 ... -
Page 38: Receiver Problem(Unable To Hear Any Voice From Each Other During The Call)
5.3.11 Receiver Problem(Unable to hear any voice from each other during the call) Receiver doesn’t work Something is Check receiver signal, SPKN0 and NO CON901 is wrong with YES SPKP0, on pin6 and pin7 of soldered well? U6235. Go to CON901 Level 4 NO ... -
Page 39: Speaker Problem(Unable To Hear Any Voice When Playing Mp3)
5.3.12 Speaker Problem(Unable to hear any voice when playing MP3) Speaker doesn’t work Speaker is well? Replace the NO NO Check speaker is contacted well? Its resistance is broken speaker 8 ohm? YES YES Re‐contact the speaker Resolder or replace Check NO B706/B707/C725/C726/T705/T706/R714 B706/B707/C725/C726/T705/T706/R714 YES NO Check C722 voltage is equal to Resolder or replace C722 ... -
Page 40: Microphone Problem: Internal(Microphone Doesn't Work)
5.3.13 Microphone Problem: Internal(Microphone doesn’t work) Internal microphone doesn’t work Something is wrong Check MIC bias voltage, MICBIASP Resolder or replace NO NO with U6235. Go to on R701 and MICBIASN on R704 R701 and R704 Level 4 YES NO Resolder or replace C708, R702, C703, B703, Check C708, R702, C703, B703, C704, C704, B704, and R703. B704, R703 YES Check if CON901 connector pin3 NO ... -
Page 41: Microphone Problem: External(Earphone Mic Doesn't Work)
5.3.14 Microphone Problem: External(Earphone MIC doesn’t work) External microphone doesn’t work NO Replace earphone Check earphone YES NO Resolder CON402. Check CON402 YES Check R424, C416, C417, C418, NO Resolder or replace R424, C416, C417, C418, C421, C422, R425, C420, R426 C421, C422, R425, C420, and R426 YES NO Something is wrong with Check external mic bias voltage, U6235. Go to Level 4 MICBIASP, on R424 YES Something is wrong with NO Check mic audio signal, MICP1 and ... -
Page 42: Earphone Problem(Unable To Detect Earphone Insert)
5.3.15 Earphone Problem(Unable to detect earphone insert) Unable to detect earphone insert NO Replace earphone Check earphone YES NO Resolder CON402. Check CON402 YES NO Check R420, R421, C414, R422, Resolder or replace R420, R421, C414, R422, C412, B402 C412, and B402 YES Check earphone insert detect signal, EINT0_HEADSET, on R421. It’s low level when earphone insert into phone. Otherwise it’s high level. ... -
Page 43: Earphone Problem(Earhook Function To Stop Or Receive A Call )
5.3.16 Earphone Problem(Earhook function to stop or receive a call ) Earhook function doesn’t work NO Replace earphone Check earphone YES NO Resolder CON402. Check CON402 YES Resolder or replace B401, R424, R425, Check B401, R424, R425, C420, NO C420, C418, C416, C417, C421, C422, and C418, ... -
Page 44: Earphone Problem (Unable To Hear Sound By Earphone)
5.3.17 Earphone Problem (Unable to hear sound by earphone) Unable to hear sound by earphone NO Replace earphone Check earphone YES NO Resolder CON402. Check CON402 YES Resolder or replace R420, R421, C414, Check R420, R421, C414, R422, NO R422, C412, R423, C419, C415, B402, and C412, R423, C419, C415, B402, B403 ... -
Page 45: Mass Storage Problem (Computer Can't Detect Phone's U Disk Function)
5.3.18 Mass Storage Problem (Computer can’t detect phone’s U disk function) Computer can’t detect phone’s U disk function NO Check data cable Replace data cable YES Check CON402 NO Resolder CON402. YES NO Resolder or replace C209, L205, and C221 Check C209, L205, C221 YES Insert data cable Something is wrong with NO Check USB module power, VBUS, U6235, Go to Level 4 on C209, its level should be 3.3V. ... -
Page 46: Vibrator Problem
5.3.19 Vibrator Problem Vibrator doesn’t work NO Resolder and replace Check vibrator vibrator YES NO Resolder and replace R208, T201, D201, and Check R208, T201, D201, C217 C217 YES Resolder or replace R420, R421, C414, Check R420, R421, C414, R422, NO R422, C412, R423, C419, C415, B402, and C412, R423, C419, C415, B402, B403 ... -
Page 47: Bluetooth Problem
5.3.20 Bluetooth Problem Bluetooth doesn’t work Resolder and replace NO Check Bluetooth antenna, AN801 the antenna YES Check the path of antenna, L804, NO Resolder and replace L804, C825, C826, C825, C826, SAW801, and L803 SAW801, and L803 YES NO Check if voltage on C822 is equal Resolder or replace C822 to battery voltage YES Check U802, C824, and C827. NO Resolder ... -
Page 48: Fm Radio Problem
5.3.21 FM Radio Problem FM doesn’t work Replace the earphone NO Check earphone YES NO Resolder and replace CON402 Check CON402 connector YES 5.3.15 Earphone Check if phone can detect NO problem (Unable to detect earphone insert event earphone insert) YES Go to 5.3.17 Earphone problem NO (Unable hear sound Can hear sound by earphone? earphone) YES ... -
Page 49: Keypad Problem
5.3.22 Keypad Problem A: Mainboard numeric key and side key problem Keypad problem Resolder and replace NO Check T501 ~ T508 NO T501 ~ T508 YES Check Row and Column signals. Something is wrong with KROW0~KROW2, on T501~T503, NO END U6235, Go to Level 4 should be high level, KCOL0~KCOL4, on T504~T508, should be low level when no key press B: LCD board function key problem Keypad problem NO Resolder and replace CON901 Check CON901 YES NO NO Reconnect FPC Replace FPC Check SLIDE FPC YES NO Resolder and replace CN3 Check CN3 connector YES Resolder ... -
Page 50: Keypad Backlight Problem
5.3.23 Keypad Backlight Problem A: Mainboard numeric key backlight problem Backlight problem NO Resolder or replace Check D501~D505, D501~D505, R511~R516. R511~R516 YES Check backlight control NO Something is wrong with signal, KP_LED, on R511, U6235, Go to Level 4 during slide event END B: LCD board function key backlight problem Backlight problem Check backlight control signal, NO Something is wrong with KP_LED, on R511, during slide U6235, Go to Level 4 event YES NO Resolder and replace CON901 Check CON901 YES NO NO Reconnect FPC Replace FPC ... -
Page 51: Slide Problem(Unable To Detect Slide Event)
5.3.24 Slide Problem(Unable to detect slide event) Unable to detect slide event NO Reship and replace Check magnet magnet YES NO Resolder and replace R901, C904, and U901 Check R901, C904, U901 YES Something is wrong with U6235, Go to Check hall IC power, VDD, on C904, NO Level 4 its voltage should be 3.3V YES Something is wrong with U6235, Go to Check ... -
Page 52: Sim Ii Card Problem(Phone Can't Access Sim Card)
5.3.25 SIM II Card Problem(Phone can’t access SIM card) Phone can’t access SIM card NO Check SIM card is installed well? Reinstall SIM card YES Resolder connector. If SIM card connector’s Check SIM card connector, NO contacts are distorted, replace the connector CON701, is well? YES NO YES C701 or C232 Repair C701 C701 or C232 voltage=3V / 1.8V is short? or C232 NO YES ... -
Page 53: Level 4 Board-Level Maintenance
5.4 Level 4 Board-level Maintenance Please return defective PCB boards to factory for repair. 6 Disassembly Steps Please refer to the video, disassembly steps. It describes the steps in detail.
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