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Figure 3.2.3.1 Flash circuit schematic diagram

2. Working principle: Flash Memory is the storage unit of the player and all AV and image files must

be stored in FLASH. Flash module is composed of two groups of FLASH chip K9G8G08U0M with the

specification 2G (H model is 4G). Flash chip and main decode RK2608 are connected through 8 data

lines to complete the read, write and delete of inside files. VCC provides 3.3V voltage for FLASH

working. R35, R36 are pull-up resistor of /CE and R40 is pull-down resistor of /WP. VCC is power supply

pin of FLASH. /CE is chip-selection signal, effective when in high level. VCC supplies 3.3V voltage and

FLASH begins working. /RE, /WE are read-effective and write-ettective signal ports to control rear and

write function of FLASH. I/O1

I/O8 are 8 data lines to fulfill the exchange of FLASH and outside data to

realize the function of write, delete and edit of Mp3.

FREN

FALE/RS/A1

FCE0

FCLE/A2

D5
D4

FWEN

RD/BY

D_GND

R32

FCE1

R35
47K

C40
104

R36
47K

C39

104

FWP

R40
47K

R37
10K

NAND FLASH

RES#

R/B2

R/B1

CE1

CE2

VCC

VSS

CLE

ALE

I/O0

I/O1

I/O2

I/O3

VSS

VCC

PRE

I/O4

I/O5

I/O6

I/O7

VCC

GND

VCC

When machine is in FM state, FM digital audio signals input from INPUT pin (pin 27, 28) of

WM8750, after digital filtering and echo processing inside WM8750, and then output to headphone jack

directly.

3.2.3 FLASH circuit

1. FLASH circuit schematic diagram is shown in the figure 3.2.3.1:

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Содержание V3N

Страница 1: ...service manual V3N V3H V5N V5H ...

Страница 2: ... substitution method 1 2 7 Comparison method 1 3 Required device for maintenance Chapter Two Functions and Operation Instructions 2 1 QUICK OPERATION 2 1 1 BUTTONS AND JACKS ILLUSTRATION 2 1 2 POWER ON OFF 2 1 3 PLAY MUSIC 2 1 4 VIDEO 2 1 5 PICTURE BROWSING 2 1 6 E BOOK BROWSING 2 1 7 RECORDING 2 1 8 TUNING 2 1 10 CALENDAR 2 1 11 CHARGE 2 1 12 RESET 2 1 9 RESUME PLAYING 2 2 USAGE INTRODUCTION 2 2 ...

Страница 3: ...4 2 TIMING POWER OFF 2 4 3SCREEN SAVER TIME 2 4 4 BRIGHTNESS 2 4 5 FM CHANNEL 2 4 6 SOUND OF PRESSING 2 4 8 FIRMWARE UPGRADING 2 4 9 SYSTEM INFORMATION 2 4 10 FORMAT 2 3 5 PLAY MUSIC 2 4 SYSTEM SETUP 2 4 7 DEFAULT SETTINGS 2 5 SPECIFICATION Chapter Three Principle and Servicing Section One Principle of the Player 3 1 1 Block diagram of the player 2 3 6 A B REPEAT FUNCTION 2 3 7 PLAYING MODE 2 3 10...

Страница 4: ...IC 3 5 1 Function introduction to HY57V641620E 3 5 2 Function introduction to Rk2608 3 5 3 Function introduction to RT9284B 3 5 4 Function introduction to TPS62200 3 5 5 Function introduction to MCP73832 3 5 6 Function introduction to TEA5767HN 3 5 7 Function introduction to M41T62 3 5 8 Function introduction to WM8750BL 3 5 9 Function introduction to XC6206P152MR Chapter Four Assembly and Disasse...

Страница 5: ...on Two Circuit diagram Chapter six BOM List Chapter Seven V5 Assembly and Disassembly Process 7 1 Disassembly process of the player 7 2 Assembly process of the player 8 1 2 Bottom layer of Main Board Section Two Circuit diagram Chapter Eight V5 PCB board Circuit diagram Section One PCB board 8 1 1 Surface layer of Main Board 60 61 61 61 62 63 68 72 72 73 74 74 74 75 76 ...

Страница 6: ... metal embedded under the earth should be determined according to the wettability of the local soil For humid places it may be shorter and longer and deeper for dry places If possible it can be distributed and layed in terms of shape 2 On operating table board the antistatic table cushion should be covered and grounded 3 All devices and equipments should be placed on the antistatic table cushion a...

Страница 7: ...iation 1 2 4 Current method Set the multimeter in current position and test current of the player of a certain point to judge the trouble spot But when testing in current method the multimeter should be series connected in the circuit which makes this method too trivial and troublesome so it is less frequently used in reality 1 2 5 Cutting method Cutting method should be combined with electric res...

Страница 8: ...for maintenance Audio Generator Digital oscillograph 100MHE SMD rework station Multimeter Soldering iron Pointed month pincers Cutting nippers Forceps Electric screw driver Terminals connecting cord Headphone Microphone 3 ...

Страница 9: ...ss when in stopwatch timing interface Press when in music playing interface Press when in music playing tuning e book browsing picture browsing and recording preparation interface Press when playing or tuning Press when in My sound effect setting Press when setting clock Press when in menu operation power on power off pause play switch pause recording mute record time enter the item or confirm the...

Страница 10: ...for long and you may enter fast forward or backward playback Play music In Music playing menu press button to enter Interface of browsing musical files Press button to select songs and press button to begin playing this song When playing music pushing button may pause music playing press button to return to the previous directory and press button to exit and enter main menu interface When playing ...

Страница 11: ... leftwards rotate rightwards and rotate 180 Press button to enter Slide after pressing button to select your desired slide interval time press button to confirm In main menu select Record item and press button to enter recording preparation stage Press button to enter recording pause recording When recording pressing button may generate recording files and exit to recording preparation state Press...

Страница 12: ...ne it will power on and begin to charge automatically After fully charged the player will stop charging automatically CAUTION When electric charge of battery is too low and when USB power supply is less than 100mA it begins to charge screen may probably have no display and even battery charge is unavailable It takes 3 hours to charge battery with computer Before unplugging USB line please stop usi...

Страница 13: ...ission line After the bottom right corner of desktop appears symbol the mobile storage function of MP3 player may be used normally NOTES To avoid abnormality of the player appears you are suggested to power off firstly before connecting MP4 player with computer and then use USB transmission line to connect Mp4 player then connect computer In Windows 98 system there is no symbol As for the name of ...

Страница 14: ... saved in Music playing item Press or button to select files to browse upwards or downwards Cancel file When browsing files press button for long and the cancel dialogue box will pop up Press button to select YES and then press button to cancel the file NOTE When in playing state files cannot be cancelled 2 3 5 PLAY MUSIC PLAY MUSIC In music press button to select song press button to begin playin...

Страница 15: ...ess button to select the frequency range that you want to adjust and press button to adjust the range value When adjusting the range take 2dB as a step and the max adjustable scope is 6dB After setup finishes press button to confirm and exit press button not to save and then exit 2 3 11 WALLPAPER SELECT When playing music you may select wallpaper in On line menu Press button to enter On line menu ...

Страница 16: ...st to the previous channel Save In manual or automanual scanning mode after radio station is searched press button to enter on line menu After selecting Save press button to confirm Delete In tuning interface press button to enter on lin menu select Delete item move cursor to the frequency point that you want to delete and press button to confirm FM recording When listening to radio set press butt...

Страница 17: ...ave bookmark item and press button to enter Pressing button may select th position to save and pressing button may set the current page as bookmark Calendar Press button to enter Calendar setup Use and button to set date Stopwatch In Stopwatch menu press button to start Timing When timing Push button to save record and press button to stop timing 2 4 SYSTEM SETUP 2 4 1 LANGUAGE Language Press butt...

Страница 18: ... number When using computer to format this player please select FAT32 file system otherwise this player will work abnormally Design and specifications of product are subject to change without notice 2 4 5 FM CHANNEL FM Channel You can select the FM channel in settings When select Auto it changes the channel Automatically When select Mono it tunes atMono channel all the time CAUTION General radio s...

Страница 19: ...IRCUIT TPS62200 POWER MANAGEMENT MODULE USB INTERFACE USB POWER ADAPTOR POWER LI ION BETTERY CHARGE MANAGEMENT 24M CRYSTAL AUDIO VEDIO CODEC RK2608 Section One Principle of the Player Chapter Three Principle and Servicing 3 1 2 Principle of the player V3 V5 portable Mp4 player is mainly composed of the following functional modules 1 Decode part main video decode chip adopts Rk2608 decode chip of R...

Страница 20: ...een 6 Tuning module FM tuning 3 1 3 Introduction to IC used by the player 1 IC used by the main board of V3 is shown in the following picture Location number Chip Function U1 HY57V641620ETP 7 SDRAM U2 RK2608 Main video decode board U3 RT9284B 12V voltage DC DC conversion U4 U5 K9G8G08U0M FLASH U6 TPS62200 1 8V voltage DC DC conversion U8 MCP73832 Charge management U9 TEA5767HN Tuning chip U10 M41T...

Страница 21: ...DC conversion U11 TPS79333DBVR 3 3V voltage DC DC conversion U12 TPS62200 1 8V voltage DC DC conversion U13 MCP73832 Charge management U14 XC6206P152MR 1 8V voltage stabilizing U15 CSTCR4M00G55 SMD ceramic resonance U1 CY8C21534 Touch button control 16 ...

Страница 22: ...s integrated power management unit includes a DC DC converter on high effective plate which supports multiple battery configuration such as 1 AA 1 AAA and Li ion battery What s more compared with the traditional voltage control system AVC enables chip to operate with higher peak value CPU working frequency to make the highest running speed up to 100 MIPS Rk2608 supports DRM10 digital copyright man...

Страница 23: ...uit is mainly composed of decode chip WM8750 and peripheral circuit WM8750 is a stereo coder decoder with low power consumption and high quality specially designed for portable digital audio application WM8750 adopts I2C bus mastering means and its internal principle block diagram is shown in the picture 3 2 2 1 2 Working principle the digital audio signals that output after being decoded by the i...

Страница 24: ... and write function of FLASH I O1 I O8 are 8 data lines to fulfill the exchange of FLASH and outside data to realize the function of write delete and edit of Mp3 D2 FREN FALE RS A1 FCE0 D3 D6 FCLE A2 D5 D4 D7 D1 FWEN D0 RD BY D_GND D_GND R32 0R FCE1 R35 47K C40 104 R36 47K C39 104 FWP R40 47K R37 10K U4 NAND FLASH RES 1 NC 2 NC 3 NC 4 NC 5 R B2 6 R B1 7 RE 8 CE1 9 CE2 10 NC 11 VCC 12 VSS 13 NC 14 ...

Страница 25: ...e is firmware of the player s working inside Flash and all tasks are completed by CPU to send out relevant order after the data exchange between CPU and Flash When the player power on 3 3V voltage supplies power for Flash through VCC CE inputs 3 3V high level signal and Flash begins to work effectively When playing video files RE is high level Flash performs the operation of read out When files ar...

Страница 26: ...wn in the picture 3 2 5 1 Figure 3 2 5 1 Display screen boost circuit C5 102 LED R61 0R R63 0R C36 106 16V 1206 L10 CDRH3D16 100 U3 RT9284B GND 2 EN 4 FB 3 OVP 5 LX 1 VCC 6 BACK_EN D3 MBR0520 SOD123 C35 106 X5R LED LEDP R30 12R À1 L9 601 0603 L11 601 0603 VB D_GND R59 1K BACK_L R60 10K 2 Working principle 12V high voltage is needed for lightening display screen so the boost circuit must be matched...

Страница 27: ...etup 3 2 6 USB jack circuit 1 USB jack circuit is shown in the picture 3 2 6 1 T1 SDCW2012 2 900T 1 3 2 4 R12 1M R8 10K R3 12K L6 680 J1 3DU05S 32T 10 5V 1 D 2 NC 3 D 4 GND 5 IN_L 6 IN_R 7 GND 8 C3 104 C4 104 C9 SFI0402 050E100NP C8 SFI0402 050E100NP R5 470R R11 1M Q2 SS8550LT C6 SFI0402 050E100NP D_GND D_GND D_GND D_GND D_GND D_GND D_GND D_GND 5V D_GND USB_DM USB_VBUS 2 USB_DP USB_DET USB_DET L2 ...

Страница 28: ...1 in the circuit is TVS diode array used for ESD protection Ground wire of headphone is also used as antenna input of FM module 3 2 8 Button circuit 1 Button circuit diagram is shown in the picture 3 2 8 1 Figure 3 2 7 1 Headphone output jack circuit OUT_L1 L3 601 0603 D1 RCLAMP0504F SC 70 1 6 2 3 4 5 L1 601 0603 L5 601 0603 R99 1K CN1 2SJ A382 001 HP DC 1 4 3 5 OUT_R1 R100 1K GND FM_ANT C32 220UF...

Страница 29: ...zed through software 3 2 9 Charge management circuit 1 Charge management circuit is mainly responsible for Li battery s charge function and its circuit diagram is shown in the picture 3 2 9 1 Figure 3 2 9 1 Charge management circuit diagram BAT D_GND C96 475 CN3 BAT 1 2 R52 0R D_GND R54 10K CHG_OK 2 VIN U8 MCP73832T VDD 1 VDD 2 START 5 NC 7 VSS 6 VBAT 3 PROG 8 VBAT 4 VCC C99 105 D_GND BATT R53 2 7...

Страница 30: ...detect circuit 1 Low voltage detect circuit diagram is shown in the picture 3 2 10 1 Figure 3 2 10 1 Low voltage detect circuit C38 104 BAT_DET GND LRADC1 104 REXT100K 101 LRADC2 103 LRADC0 105 LRADC3 102 R16 100K 1 R17 100K 1 BATT GND VCC1V8 2 RK2608 2 Working principle as for the function of battery voltage detect circuit when we detects that input voltage of the player is lower than a certain v...

Страница 31: ...T are over discharge when Li battery voltage is lower than 2 4V protection output end and over charge when Li battery voltage is higher than 4 2V protection output pin When working normally the two pins are high level MOSFET opens and Li battery voltage outputs to the player through protection board When in protection the 2 pins output low level to control MOSFET to cut off power Over current dete...

Страница 32: ...n high level BYPASS pin has a resistor inside which may constitute low pass filter together with external 103 capacitor C4 to decrease output noise 1 8V power of the player s working is supplied by TPS62200 and peripheral circuit TPS62200 is high efficience voltage drop DC DC convertor and EN pin is enable pin effective when in high The relationship between TPS62200 output voltage and FB pin feedb...

Страница 33: ...led down to ground to output low level Q4 is on diode D8 is also on BATT pulls EN up through Q4 and D8 TPS62200 and TPS79333 begin to enter working state to output 1 75V and 3 3V voltage to suppl power for the entire system System voltage VCC VDD and OLED 13V begin to output crystal oscillator Y1 oscillates reset circuit works main chip and display screen initialize OSD appears and machine begins ...

Страница 34: ...lectrode of Q7 enable end EN is low level TPS62200 and TPS79333 stop voltage output and the player power off When loosening button BATT makes START pin keeps in high level through R89 R90 to make Q5 on electric charge saved in C87 discharges quickly through CE electrode of Q5 R22 and R94 to ensure normal power on when pressing START PLAY PAUSE button next time 3 2 15 MIC circuit 1 MIC circuit diag...

Страница 35: ...nd no output Analysis and troubleshooting firstly confirm whether it is caused by battery or power circuit Connect with power adapter and check whether charge is available and whether screen has display After power on and connecting there is no display After taking machine apart firstly test power supply 3 3V and 1 8V and we find 3 3V is normal Then test 1 8V and voltage on two ends of L13 and fin...

Страница 36: ...When pressing buttons test DIDI signals and find there is no change Check whether crystal oscillator U10 oscillates normally and there is no oscillation After changing U10 trouble is removed Example 6 Symptom no OSD Description screen has no display Analysis and troubleshooting firstly confirm whether power or display screen itself has trouble Power on listen to playing sound and it is normal so w...

Страница 37: ...supply 3 3V and SCL SDA are normal Test whether 32 768 crystal oscillator oscillates normally and whether it has false welding This crystal oscillator has direction when changing it so it cannot be stuck reversely otherwise machine down will happen Test crystal oscillator and we find it has false welding After welding again trouble is removed Example 10 Symptom computer cannot be connected Descrip...

Страница 38: ...ly is normal Whether it is normal after changing display screen components Whether 8 digit number of screen is normal Change display screen components Check DC DC boost circuit and peripheral elements Check whether display screen flat cable holderhas false welding Display screen flat cable holder has false welding Display screen flat cable holder has trouble Change decode chip Figure 3 3 2 1 Troub...

Страница 39: ...y Check whether 3 3V and 1 8V are normal Check D D resistance to ground Upgrade software Q2 has trouble or USB socket has rosin joint Check each DC DC switch circuit and peripheral elements Check whether T1 or USB socket has rosin joint Check whether oscillation of 12M crystal oscillator is normal Change crystal oscillator or capacitor n two sides Change the main decode chip Whether software upgra...

Страница 40: ...ltage 4 2V 4 3V Whether BAT voltage has change Check whether USB_VBUS has 5V voltage Check power supply circuit Change IC ISL6294 Battery components have trouble change battery or battery holder Battery is fully charged then protection Normal after discharge Y Y Y Y N N N Figure 3 3 2 3 Troubleshooting diagram for Do not charge 35 ...

Страница 41: ...ether battery voltageis up to 3 6V after charge Check charge circuit Whether U16 input pin voltage is up to 5V Check D5 and Q2 BGA has trouble Check whether U6 outputs 1 8V normally N Check whether U16 outputs 3 3V normally Check U16 and peripheral circuit Refer to troubleshooting process for Machine not power on N Check U6 and peripheral circuit Y Y Y Y Y Y Figure 3 3 2 4 Troubleshooting diagram ...

Страница 42: ...e the main decode chip A A Y Y Y Y Y Y N N N N N Whether 3 3V 1 8V voltage output is normal Whether crystal oscillator Y1 has normal oscillation Change crystal oscillator Trouble is removed Whether reset circuit is normal Check reset circuit Test whether DM DP resistance to ground is normal Change the main decode chip Check USB terminal welding Change the main decode chip Figure 3 3 2 5 Troublesho...

Страница 43: ... with the purpose To help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing skills For the difference of oscillograph s type model and tuner a certain difference may exist so the servicing personnel are expected to pay more attention to check in daily operation Section Four Signal waveform diagram 38 ...

Страница 44: ...3 VCC waveform diagram 4 Display screen background light BCLK waveform diagram 5 PLAY1 waveform diagram when playing 39 ...

Страница 45: ...7 OUT_L waveform diagram when playing musical files 8 Crystal oscillator Y1 waveform diagram 6 OUT_R waveform diagram when playing musical files 40 ...

Страница 46: ...9 U6 DC DC switch waveform diagram 10 Power on reset RESETN waveform diagram 11 Crystal oscillator XT1 waveform diagram 41 ...

Страница 47: ... or 3 the number of consecutive read or write cycles initiated by a single control command Burst length of 1 2 4 8 or full page and the burst count sequence sequential or interleave A burst of read or write cycles in progress can be terminated by a burst terminate command or can be interrupted and replaced by a new burst read or write command on any cycle This pipelined design is not restricted by...

Страница 48: ...ta Input Output Mask Controls output buffers in read mode and masks input data in write mode DQ0 DQ15 Data Input Output Multiplexed data input output pin VDD VSS Power Supply Ground Power supply for internal circuits and input buffers VDDQ VSSQ Data Output Power Ground Power supply for output buffers NC No Connection No connection 3 5 2 Function introduction to RK2608 1 Features 128 pins LQFP pack...

Страница 49: ...hts Support watchdog timer DSP based Software MPEG1 2 2 5 Audio Layer 1 2 3 decoding Layer3 encoding WMA 9 decoding RK2608A only G 729 based voice recording and playback Equalizer RK2608A only MPEG 4 QVGA decoding Digital photo frame application software RK2609A only Headphone driver output 2x9mW 32 Ohm TYP SNR 90dB DAC TYP Low Power Consumption 100mW at typical MP3 decoder solution 2 PIN Descript...

Страница 50: ... 2 GPIO FCLE 24 P2 7 A3 I O SDRAM SRAM Address Bit 3 GPIO 25 A4 O SDRAM SRAM Address Bit 4 26 A5 O SDRAM SRAM Address Bit 5 27 A6 O SDRAM SRAM Address Bit 6 28 A7 O SDRAM SRAM Address Bit 7 29 A8 O SDRAM SRAM Address Bit 8 30 A9 O SDRAM SRAM Address Bit 9 31 A10 O SDRAM Address Bit 10 32 A11 O SDRAM Address Bit 11 SRAM Address Bit 10 33 A12 O SDRAM Address Bit 12 SRAM Address Bit 11 34 BA0 O SDRAM...

Страница 51: ...P1 1 I2C_SDA I O Pull up EN GPIO External SDA of I2C 60 P1 2 I2C_SCL I O Pull up EN GPIO External SCL of I2C 61 P1 3 I2SMCLK I O Pull up EN GPIO I2SMCLK of External CODEC 62 P1 4 DAC_LRCK I O Pull up EN GPIO DAC LRCK of External CODEC 63 P1 5 ADC_LRCK I O Pull up EN GPIO ADC LRCK of External CODEC 64 P1 6 SDI I O Pull up EN GPIO SDI Data input Connect to SDO of External CODEC 65 P1 7 SDO I O Pull ...

Страница 52: ... Bit 16 87 A17 O SRAM Address Bit 17 88 A18 O SRAM Address Bit 18 89 A19 O SRAM Address Bit 19 90 A20 O SRAM Address Bit 20 91 DQM0 O SDRAM DQM0 92 DQM1 O SDRAM DQM1 93 A14 O SRAM Address Bit 14 94 A15 O SRAM Address Bit 15 95 VSSD P LDO33 ground 96 VCC33 P LDO33 3 3V power rail 97 VBAT42 P LDO33 Power input 98 VCC33 P Voltage output 99 VSSD G LDO33 ground 100 VCCA P ADC 3 3V power input ADC refer...

Страница 53: ...sh LCD SDRAM data bus bit 15 GPIO 124 LCDRDN O LCD Read execution pin 125 LCDWRN O LCD Write execution pin 126 LCDCSN O LCD driver chip select 127 FCE0 O Flash chip select 0 128 VDDA P Analog 1 8V power output Connect one external 10uF CAP 3 5 3 Function introduction to RT9284B 1 Description The RT9284A B is a compact high efficient and high integration LED driver Internal 22V MOSFET can support 2...

Страница 54: ... a standard 3 3 V or 5 V voltage rail With an output voltage range of 6 0 V down to 0 7 V and up to 300 mA output current the devices are ideal to power low voltage DSPs and processors used in PDAs pocket PCs and smart phones Under nominal load current the devices operate with a fixed switching frequency of typically 1 MHz At light load currents the part enters the power save mode operation the sw...

Страница 55: ...tive applications The MCP73831 2 are available in an 8 Lead 2 mm x 3 mm DFN package or a 5 Lead SOT23 package Along with their small physical size the low number of external components required make the MCP73831 2 ideally suited for portable applications For applications charging from a USB port the MCP73831 2 adhere to all the specifications governing the USB power bus The MCP73831 2 employ a con...

Страница 56: ...TEA5767HN is a single chip electronically tuned FM stereo radio for low voltage application with fully integrated IF selectivity and demodulation The radio is completely adjustment free and only requires a minimum of small and low cost external components The radio can be tuned to the European US and Japanese FM bands 2 Features High sensitivity due to integrated low noise RF input amplifier FM mi...

Страница 57: ...s enable line to switch the bus input and output lines into 3 state mode Automotive temperature range at VCCA VCC VCO and VCCD 5 V 3 PIN Description PIN No Symbol I O Description 1 n c not connected 2 CPOUT O charge pump output of synthesizer PLL 3 VCOTANK1 O voltage controlled oscillator tuned circuit output 1 4 VCOTANK2 O voltage controlled oscillator tuned circuit output 2 5 VCC VCO P voltage c...

Страница 58: ...og ground 34 VCCA P analog supply voltage 35 RFI1 I RF input 1 36 RFGND RF ground 37 RFI2 I RF input 2 38 TAGC time constant RF AGC 39 LOOPSW switch output of synthesizer PLL loop filter 40 n c not connected 3 5 7 Function introduction to M41T62 1 Description The M41T6x Serial Access TIMEKEEPER is a low power Serial RTC with a built in 32 768kHz oscillator external crystal controlled Eight registe...

Страница 59: ...or stop detection monitors clock operation Serial interface supports I2C bus 400kHz 350nA timekeeping current 3V Low operating current of 35µA 400kHz Timekeeping down to 1 0V 1 3V to 4 4V I2C bus operating voltage 32KHz square wave on power up to drive a microcontroller in low power mode Programmable alarm with interrupt function Accurate programmable watchdog from 62 5ms to 31 min Software clock ...

Страница 60: ...4 1kHz are generated directly from the master clock without the need for an external PLL The WM8750L operates at supply voltages down to 1 8V although the digital core can operate at voltages down to 1 42V to save power and the maximum for all supplies is 3 6 Volts Different sections of the chip can also be powered down under software control The WM8750L is supplied in a very small and thin 5x5mm ...

Страница 61: ... Clock 10 MONOOUT Analogue Output Mono Output 11 OUT3 Analogue Output Analogue Output 3 can be used as Headphone Pseudo Ground 12 ROUT1 Analogue Output Right Output 1 Line or Headphone 13 LOUT1 Analogue Output Left Output 1 Line or Headphone 14 HPGND Supply Supply for Analogue Output Drivers LOUT1 2 ROUT1 2 15 ROUT2 Analogue Output Right Output 1 Line or Headphone or Speaker 16 LOUT2 Analogue Outp...

Страница 62: ...ll dropout voltage The XC6206 consists of a current limiter circuit a driver transistor a precision reference voltage and an error correction circuit The series is compatible with low ESR ceramic capacitors The current limiter s foldback circuit also operates as a short protect for the output current limiter and the output pin Output voltage can be set internally by laser trimming technologies It ...

Страница 63: ...ter Four Assembly and Disassembly Process In order to get to know the structure of V3more easily and directly now we use pictures to present each key point of disassembly and assembly process before all users to prevent users from operating blindly and to damage elements so we hope you can operate according to the instructions strictly Note all operations must be with strict anti static measures O...

Страница 64: ...driver to take out 2 screws of main board 9 Use iron to weld to separate the batter and buzzer lead wire on main board 10 Take out main board components 5 Insert the 4 special slice clasp instruments into the relevant position of the 4 clasps 6 Use the special hook tool shown in the picture to remove the middle casing 59 ...

Страница 65: ...yer is similar with the disassembly process and only the sequence is reverse 11 Take out battery components 12 Take out the stainless steel cover board on rear side of display screen 13 Take out display screen components from the direction shown in the picture 60 ...

Страница 66: ...Chapter Cinque PCB board Circuit diagram Section One PCB board 5 1 1 Surface layer of Main Board 61 ...

Страница 67: ...5 1 2 Bottom layer of Main Board 62 ...

Страница 68: ... 473 U9 TEA5767HN N C 1 N C 40 CPOP 2 VCOT1 3 VCOT2 4 VCOVCC 5 DGND 6 DVCC 7 DATA 8 CLOCK 9 N C 10 W R 11 BUSM 12 BUSEN 13 SWP1 14 SWP2 15 XTAL1 16 XTAL2 17 PDLF 18 PHLF 19 N C 20 N C 21 LAVO 22 RAVO 23 TMUTE 24 MPXO 25 VREF 26 TCIFC 27 DIFL1 28 DIFL2 29 N C 30 N C 31 IFGAI 32 AGND 33 AVCC 34 RFI1 35 RFGND 36 RFI2 37 TCAGC 38 LOOPSW 39 L19 10UH 2012 C72 223 C67 333 R72 33K L24 601 DCR 350mΩ C69 10...

Страница 69: ...MCLK 1 BCLK 5 ADCLRC 9 DACLRC 7 DACDAT 6 ADCDAT 8 MODE 29 CSB 30 SDIN 31 SCLK 32 LINPUT1 28 RINPUT1 27 LINPUT2 26 RINPUT2 25 LINPUT3 24 RINPUT3 23 DGND 4 HPGND 14 AGND 19 LOUT2 16 ROUT2 15 MONOOUT 10 OUT3 11 LOUT1 13 ROUT1 12 MICBIAS 22 VREF 20 VMID 21 C1105 BCLK OUT_R1 R84 10R C84 104 P4 R1 100R C83 106 X5R R77 4 7K C78 104 R48 47K R103 10K R83 10R R100 1K L5 601 0603 C9 SFI0402 050E100NP R12 1M ...

Страница 70: ...25 104 U1 HY57V641620ETP VDD 1 DQ0 2 VDDQ 3 NC 4 DQ1 5 VSSQ 6 NC 7 DQ2 8 VDDQ 9 NC 10 DQ3 11 VSSQ 12 NC 13 VDD 14 DQM0 15 WEN 16 CASN 17 RASN 18 CS 19 BA0 20 BA1 21 A10AP 22 A0 23 A1 24 VSS 54 DQ7 53 VSSQ 52 NC 51 DQ6 50 VDDQ 49 NC 48 DQ5 47 VSSQ 46 NC 45 DQ4 44 VDDQ 43 NC 42 VSS 41 NC 40 DQM1 39 CLK 38 CKE 37 A12 36 A11 35 A9 34 A8 33 A7 32 A6 31 A2 25 A3 26 VDD 27 A5 30 A4 29 VSS 28 R17 100K 1 L...

Страница 71: ...3 102 R95 47K R97 1M R14 100R C45 106 X5R C44 47PF R89 10K R10 1K Q8 MMST3904 U6 TPS62200 FAN5307 SOT23 5 VI 1 GND 2 EN 3 FB 4 SW 5 R42 240K 1 Q5 SS8050LT C88 SFI0402 050E100NP PLAY VDD L22 601 DCR 350mΩ C94 103 VCC Q1 SI2305DS SOT23 D S G D15 1N4148WS D8 1N4148WS R46 47k C95 106 X5R R101 1K C96 475 U16 TPS79333DBVR SOT23 5 VIN 1 GND 2 EN 3 BYPASS 4 VOUT 5 C85 SFI0402 050E100NP R87 330K U8 MCP7383...

Страница 72: ... 3 V_ADJ 2 USB_VBUS 3 U6 TPS62200 FAN5307 SOT23 5 VI 1 GND 2 EN 3 FB 4 SW 5 L13 CDRH3D16 100 C44 47PF 5V C88 SFI0402 050E100NP R46 47k R42 240K 1 R86 330K R44 390K 1 R45 10k D15 1N4148WS C98 101 R43 100K 1 Q8 MMST3904 VDD C48 106 X5R D5 BAT43WS C45 106 X5R 67 ...

Страница 73: ... R76 0090326 SMD RESISTOR 1 16W 10O 5 0402 R66 R83 R84 0090830 PRECISION SMD RESISTOR 1 1612O 1 0402 R30 0090046 SMD RESISTOR 1 10W 470O 5 0805 R5 0090447 SMD RESISTOR 1 16W 22O 5 0402 R73 R69 0090330 SMD RESISTOR 1 16W 33O 5 0402 R24 R26 0090339 SMD RESISTOR 1 16W 100O 5 0402 R1 R2 R4 R9 R14 0090362 SMD RESISTOR 1 16W 1K 5 0402 R10 R31 R59 R99 R100 R101 0090369 SMD RESISTOR 1 16W 2 2K 5 0402 R27 ...

Страница 74: ...5 C86 C88 1030033 SMD PRESS SENSITIVITY RESISTOR S1005H180C100GPT 0402 C6 C85 C86 C88 0310503 SMD CAPACITOR 50V 6P 0 25P NPO 0402 C27 C29 0310416 SMD CAPACITOR 50V 22P 5 NPO 0402 C73 0310418 SMD CAPACITOR 50V 27P 5 NPO 0402 C57 0310424 SMD CAPACITOR 50V 47P 5 NPO 0402 C44 C59 0310432 SMD CAPACITOR 50V 101 5 NPO 0402 C56 C98 0310435 SMD CAPACITOR 50V 221 5 NPO 0402 C37 0310704 SMD CAPACITOR 25V 102...

Страница 75: ...2 L1 L3 L5 L9 L12 0390221 SMD COIL THREAD INDUCTOR 33nH 2 1608 L18 L17 0390398 SMD COIL THREAD INDUCTOR 120nH 2 1608 L16 0390386 SMD CORES INDUCTOR 10uH 20 CDRH3D16 HP L10 L13 0390044 SMD INDUCTOR 10UH 10 2012 L19 0960278 SMD CRYSTAL OSCILLATOR 24MHz 30ppm 5032 4 20P Y1 0960279 SMD CRYSTAL OSCILLATOR 32 768KHz 20ppm SS6 12 5P XT1 XT2 0680077 SMD SCHOTTKY DIODE MBR0520 SOD123 D3 0680074 SMD SCHOTTK...

Страница 76: ...ELEMENT RCL0504 SC70 6L D1 1090084 ESD ELEMENT PLR0504P SC70 6L D1 1310096 SMD STIR SWITCH SSSS70101 SW1 1310095 SMD STIR SWITCH 1370R SW1 1340099 SMD LIGHT TOUCH SWITCH SKRELGE010 SW2 1000053 COMMON MODE FILTER SDCW2012 2 371T NT2012 T1 1980050 EARPHONE SOCKET 2S382 001 CN1 1140082 MICROPHONE 44dB 3dB 4 1 2 WITH NEEDLE MIC1 1140105 MICROPHONE 42dB 2dB 4 1 5 WITH NEEDLE MIC1 1860140 USB SOCKET 3DG...

Страница 77: ...et to know the structure of V5more easily and directly now we use pictures to present each key point of disassembly and assembly process before all users to prevent users from operating blindly and to damage elements so we hope you can operate according to the instructions strictly Note all operations must be with strict anti static measures Operators must wear anti static gloves or wrist ring ele...

Страница 78: ... board take out display screen cover board and then the display screen components 5 Separate the bottom casing and the middle casing 6 Remove the clasp of button flat cable and then pull out button flat cable 8 Take out the main board from middle casing 4 2 Assembly process of the player Assembly process of the player is similar with the disassembly process and only the sequence is reverse 73 ...

Страница 79: ...Chapter Eight V5 PCB board Circuit diagram Section One PCB board 8 1 1 Surface layer of Main Board 74 ...

Страница 80: ...8 1 2 Bottom layer of Main Board 75 ...

Страница 81: ... LINPUT3 24 RINPUT3 23 DGND 4 HPGND 14 AGND 19 LOUT2 16 ROUT2 15 MONOOUT 10 OUT3 11 LOUT1 13 ROUT1 12 MICBIAS 22 VREF 20 VMID 21 R19 1 16W 1K 5 0402 R133 47K C9 6 3V 105 20 X5R 0402 OUT_R P4 C4 16V 104 20 X5R 0402 C127 16V 104 20 X5R 0402 C17 6 3V106 20 X5R 0805 R6 1 16W 100Ω 5 0402 C11 16V 104 20 X5R 0402 R18 47K R2 1 16W 1K 5 0402 L4 FCM1608 601 T02 R14 1M R8 1 16W 12K 5 0402 C19 L1 FCM1608 601 ...

Страница 82: ...137 0 R24 1 16W 4 7K 5 0402 C37 16V 104 20 X5R 0402 U2 HY57V641620ETP VDD 1 DQ0 2 VDDQ 3 NC 4 DQ1 5 VSSQ 6 NC 7 DQ2 8 VDDQ 9 NC 10 DQ3 11 VSSQ 12 NC 13 VDD 14 DQM0 15 WEN 16 CASN 17 RASN 18 CS 19 BA0 20 BA1 21 A10AP 22 A0 23 A1 24 VSS 54 DQ7 53 VSSQ 52 NC 51 DQ6 50 VDDQ 49 NC 48 DQ5 47 VSSQ 46 NC 45 DQ4 44 VDDQ 43 NC 42 VSS 41 NC 40 DQM1 39 CLK 38 CKE 37 A12 36 A11 35 A9 34 A8 33 A7 32 A6 31 A2 25...

Страница 83: ...5 DGND 6 DVCC 7 DATA 8 CLOCK 9 N C 10 W R 11 BUSM 12 BUSEN 13 SWP1 14 SWP2 15 XTAL1 16 XTAL2 17 PDLF 18 PHLF 19 N C 20 N C 21 LAVO 22 RAVO 23 TMUTE 24 MPXO 25 VREF 26 TCIFC 27 DIFL1 28 DIFL2 29 N C 30 N C 31 IFGAI 32 AGND 33 AVCC 34 RFI1 35 RFGND 36 RFI2 37 TCAGC 38 LOOPSW 39 L9 FCM1608 601 T02 C63 16V 223 0 X7R 0402 R49 33K C58 16V 333 10 X5R 0402 L11 600Ω 100MHZ 25 1005 C60 6 3V106 0 X5R 0805 C5...

Страница 84: ...OREVSS 72 COREVDD 73 SD_CMD 74 SD_CLK 75 SD_WP 76 AD_MODE 77 CNF0 78 CNF1 79 CNF2 80 CNF3 81 CNF4 82 CNF6 83 I2C_SDA 84 I2C_SCL 85 DV_RESET 86 DV_ENB 87 COREVSS 88 COREVDD 89 IOVDD 90 IOVSS 91 GPIO0 92 GPIO1 93 GPIO2 94 GPIO3 95 GPIO4 96 LCD_RD LCD_E 97 LCD_WR LCD_RD WR 98 LCD_CS 99 LCD_D C 100 COREVDD 101 COREVSS 102 IOVSS 103 IOVDD 104 LCD_SHIFT 105 LCD_DATA7 106 LCD_DATA6 107 LCD_DATA5 108 LCD_...

Страница 85: ...0V 47P 5 NPO 0402 R73 10K R136 200K Q5 MMST3904 SOD 323 U12 TPS62200 FAN5307 SOT23 5 VI 1 GND 2 EN 3 FB 4 SW 5 R66 240K 1 Q9 SS8050LT SOD 323 C120 SFI0402 050E100NP PLAY L21 600Ω 100MHZ 25 1005 C110 25V 103 10 X7R 0402 Q6 SI2305DS SOT 23 D S G D9 1N4148WS D10 1N4148WS C8 16V 104 20 X5R 0402 R71 47k C109 6 3V106 20 X5R 0805 R72 1 16W 1K 5 0402 C118 6 3V106 20 X5R 0805 U11 TPS79333DBVR SOT23 5 VIN 1...

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