LG CM5660 Скачать руководство пользователя страница 22 | Manualshive

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3-5

ONE POINT REPAIR GUIDE

3. VFD IS NOT DISPLAYED WHEN POWER ON THE SET

When power on the set, any icons or characters on VFD are not displayed.

3-1. VFD (VFD300)

3-1-1. Solution

Please check and replace VFD300 on FRONT board.

3-1-2. How to troubleshoot (Countermeasure)

1) Check if VFD_12V, DVCC_3.3V and VCC_5V are output from SMPS to VFD via the MAIN board.
2) Check if the IC501 outputs VFD_CLK, VFD_STB, and VFD_DAT to the FRONT board.
3) Check if the VFD grid current amplifier circuit on the FRONT board.
Check the drive signal to the transistor’s(Q801, Q802) base.



If the control signals from VFD (DGND, VDD) isn’t output, replace VFD with a new one.

3-1-3. Service hint (Any picture/ Remark)

R307(TP302)

Q300 Emitter

about

30 Vp-p

< FRONT circuit >

< Waveform of the grid current driver>

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Содержание CM5660

Страница 1: ... SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Internal Use Only OCTOBER 2016 MODEL CM5660 CM5660 CMS5760F MODEL CM5660 CM5660 CMS5760F MINI HI FI SYSTEM P NO AFN77612031 ...

Страница 2: ...CONTENTS SECTION 1 GENERAL SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST 1 1 ...

Страница 3: ...SECTION 1 SUMMARY CONTENTS SERVICING PRECAUTIONS 1 3 ESD PRECAUTIONS 1 5 HIDDEN KEY MODE 1 6 SERVICE INFORMATION FOR EEPROM 1 7 PROGRAM DOWNLOAD GUIDE 1 8 SPECIFICATIONS 1 10 1 2 ...

Страница 4: ...age the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning the lens surface therefore a cot ton ...

Страница 5: ... replacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and grounded When removing the laser pick up from its conductive bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent ...

Страница 6: ...t to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive mat...

Страница 7: ...ock On Off Front Stop Remote Control Key Stop for 5 s Front Stop Remote Control Key Stop for 5 s Power Disc Lock On Off Front Stop Remote Control Key Region EQ for 5 s or Front Stop Front Open for 5 s Front Stop Remote Control Key Region EQ for 5 s or Front Stop Front Open for 5 s Demo All Key Lock Front Stop Remote Control Key 9 for 5 s Front Stop Remote Control Key 9 for 5 s Bluetooth Auto Power...

Страница 8: ...Move to appropriate position And make changes with remote control REPEAT key Press Stop Key VFD WRITE OK Front Stop Remote control push same timing during 5 s VFD E2P CLR Completed 1 7 SERVICE INFORMATION FOR EEPROM NAME OPT0 OPT1 OPT2 OPT3 OPT4 OPT5 OPT6 OPT7 OPT8 OPT9 OPT10 OPT11 OPT12 OPT13 OPT14 DETECT NEW EEPROM OPTION EDIT SCREEN HEX 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...

Страница 9: ...ading file proceeds in the same way at USB1 function and USB2 function Caution When downloading the file you should neither unplug the USB device change to the other function nor power off the device USB device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN 1 Fast Format USB device 2 Copy Firmware file to USB device NO USB Insert USB device at USB function SEARCH...

Страница 10: ...oading file proceeds in the same way at USB1 function and USB2 function Caution When downloading the file you should neither unplug the USB device change to the other function nor power off the device USB device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN 1 Fast Format USB device 2 Copy Firmware file to USB device NO USB Insert USB device at USB function SEARC...

Страница 11: ...ck x 1 Microphone MIC Sensitivity 20 mV 1 kHz 6 3 mm jack x 1 TUNER FM Tuning Range 87 5 to 108 0 MHz or 87 50 to 108 00 MHz AM Tuning Range 522 to 1 620 kHz 520 to 1 710 kHz or 522 to 1 710 kHz SYSTEM Frequency Response 70 to 20 000 Hz Signal to noise ratio More than 75 dB Dynamic range More than 75 dB Bus Power Supply USB 5 V 500 mA AMPLIFIER RMS OUTPUT POWER Total 700 W Front 350 W x 2 4 Ω at 1...

Страница 12: ...SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 3 1 CABINET AND MAIN FRAME SECTION 2 3 2 PACKING ACCESSORY SECTION 2 7 3 SPEAKER SECTION 2 8 2 1 ...

Страница 13: ...2 2 ...

Страница 14: ...62 443 443 260 443 443 251 443 443 443 255 255 443 254 A43 A56 498 CABLE1 CABLE4 A B 443 A00 300 300 H EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION NOTES THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE ...

Страница 15: ......

Страница 16: ...2 PACKING ACCESSORY SECTION 2 7 808 Battery 900 Remote Control 802 Box 801 Owner s manual 804 Bag 825 FM Wire Antenna 803 Packing 803 Packing ...

Страница 17: ...2 8 A60 3 SPEAKER SECTION ...

Страница 18: ...INT 3 33 1 DSP IC500 3 33 2 SDRAM IC504 3 34 3 SERVO IC401 3 35 4 MOTOR DRIVER IC400 3 36 5 ADC IC202 3 37 6 USB JK500 3 37 7 BLUETOOTH CN501 3 38 WIRING DIAGRAM 3 39 BLOCK DIAGRAMS 3 41 1 SYSTEM BLOCK DIAGRAM 3 41 2 POWER BLOCK DIAGRAM 3 43 CIRCUIT DIAGRAMS 3 45 1 SMPS CIRCUIT DIAGRAM 3 46 2 MAIN DSP SoC CIRCUIT DIAGRAM 3 47 3 MAIN POWER PART CIRCUIT DIAGRAM 3 49 4 MAIN ADC DAC CIRCUIT DIAGRAM 3 ...

Страница 19: ...shoot Countermeasure 1 Check if the fuse F901 is open or short circuit 2 Check if the NTC thermistor TH900 or TH903 is normal or open 3 Check if the bridge diode BD901 is short circuit by over current with a digital multi meter 1 1 3 Service hint Any picture Remark F901 If F901 is not short circuit replace it with a same specifications one BD901 If BD901 is short circuit replace it with a new one ...

Страница 20: ...n Please check and replace F901 Q901 on SMPS board 1 2 2 How to troubleshoot Countermeasure 1 Check if the fuse F901 is open or short circuit 2 Check the anode cathod voltage of D951 with a digital multi meter it is normally 0 2 0 3 V If it doesn t have any voltage it s destroyed Replace it with a new one 1 2 3 Service hint Any picture Remark SMPS circuit ...

Страница 21: ... no 12 VA check the SMPS and if doesn t appear 3 3 VA check IC501 2 Check 12 VA 5 1 VA 3 3 VA DVCC_5V and DVCC_3 3V when power on the set If the set doesn t work regardless of what the KEY1 changes high to low while pressing the power button X500 and X501 work normally but if you can not power on the set replace the IC500 with a new one on the MAIN board 2 1 3 Service hint Any picture Remark MAIN ...

Страница 22: ...V DVCC_3 3V and VCC_5V are output from SMPS to VFD via the MAIN board 2 Check if the IC501 outputs VFD_CLK VFD_STB and VFD_DAT to the FRONT board 3 Check if the VFD grid current amplifier circuit on the FRONT board Check the drive signal to the transistor s Q801 Q802 base If the control signals from VFD DGND VDD isn t output replace VFD with a new one 3 1 3 Service hint Any picture Remark R307 TP3...

Страница 23: ...n t come out check 12 VA from SMPS board 2 If IC102 pin3 about 5 1 V is normal check voltage of IC100 pin3 about 1 2 VA pin6 about 3 3 VA If IC100 pin3 about 1 2 VA pin6 about 3 3 VA doesn t come out check R100 R101 R102 and R112 R113 R114 If there s no defective component then replace IC100 3 PWR_CTRL is high check R116 and if there s no defective component then replace IC103 PWR_CTRL IC103 pin3 ...

Страница 24: ...tion Replace X500 on MAIN board 4 2 2 How to troubleshoot Countermeasure 1 If 3 3 VA 1 2 VA is normal check reset High of IC500 pin T12 on MAIN board 2 If MAIN_RESET is high check the soldering status of 24 MHz crystal X500 3 If the crystal X500 doesn t oscillate check R574 C544 C547 around crystal X500 If there s no defective component then replace X500 4 2 3 Service hint Any picture Remark X XI ...

Страница 25: ...4 3 2 How to troubleshoot Countermeasure 1 If the crystal X500 does oscillate check serial flash IC501 on MAIN board Check pin8 VCC pin6 CLK pin1 CS pin2 DO pin5 DI of below waveform 2 If pin1 2 5 6 doesn t come out check registers R595 R596 R570 R571 R572 R569 of IC501 If registers of IC500 is OK then replace IC500 it need to download program 3 After change IC500 if It is still not below waveform...

Страница 26: ...O signal from pin16 of IC401 If no signal check DVCC_3 3V and DV 3 3 V RF and X400 2 Check the SPIN SPIN from IC400 to CN401 for driving SPINDLE motor It is about 3 6 Vp p If no signal check M_5 V for IC400 3 Check if the FFC cable is solidly connected between CN401 and MD 4 Check the MD If the spindle motor is sort circuit or has any trouble it can not rotate CD discs Please check the function af...

Страница 27: ...nal from pin15 of IC401 If no signal check DVCC_3 3V and DV_3 3V RF and X400 2 Check the SPED SLED from IC400 to CN401 for driving SPINDLE motor It is about 2 9 Vp p If no signal check M_5V for IC400 3 Check if the FFC cable is solidly connected between CN401 and MD 4 Check the MD If the SPINDLE motor is sort circuit or has any trouble it can not rotate CD discs Please check the function after cha...

Страница 28: ...T_OPEN MOT_CLOSE signals from pin P5 L4 of IC500 to IC400 If no signal check M_5V to IC400 2 Check LOAD from IC400 to CN401 for driving the tray OPEN CLOSE motor It is about 3 85 Vp p If no signal check M_5V to IC400 If it has any trouble replace it with a new one 3 Check if the FFC cable is solidly connected between CN401 and MD 4 Check the MD If the tray motor is sort circuit or has any trouble ...

Страница 29: ...sitioned in the center of a track on CD disc 1 Check the TRD signal from pin14 of IC401 If no signal check DVCC_3 3V DV_3 3V RF and X400 2 Check TR TR from IC400 to CN400 for driving the tracking actuator If no signal check M_5V for IC400 3 Check if the FFC cable is solidly connected between CN400 and MD 4 Check the MD If the pickup module has any trouble it can not move the laser beam on the left...

Страница 30: ...p a regular interval with the surface of a CD disc 1 Check the FDO signal from pin13 of IC401 If no signal check DVCC_3 3 DV_3 3V RF and X400 2 Check F F from IC400 to CN400 for driving the focusing actuator If no signal check M_5V for IC400 3 Check if the FFC cable is solidly connected between CN400 and MD 4 Check the MD If the pickup module has any trouble it can not move the laser beam on the t...

Страница 31: ...tered to IC401 Refer to the No operation of MD guide on Item 5 2 Check the following I2S signal flow I2S audio signal Interface MCS_BCK IC500_pin E1 IC700_pin23 MCS_LRCK IC500_pin D1 IC700_pin22 44 1 kHz MIX_DATA0_OUT IC500_pin E2 IC700_pin24 MCS_MCLK IC500_pin D2 IC102_pin44 If there is any trouble check the power for each IC The power is normal but if the signal waveform to the IC is distorted o...

Страница 32: ... Item 6 1 2 2 Check PVDD If PVDD is abnormal check the SMPS 3 Check AMP_12V for driving the gate of AMP IC a All the powers are normal but if AMP_12V is low there is possible for AMP IC to be damaged b Remove L701 L702 L703 and L704 one by one When removed a inductance if AMP_12V is recovered the IC connected to it was damaged c Replace the IC with a new one 4 Check the impedance between IC701 IC7...

Страница 33: ...is okay if so not check USB_5V voltage pin6 of IC104 2 Check USB D1 or USB D2 from MAIN board to top board a Check 2 0_D1 signals pin2 pin3 of JK500 or 1 1_D1 signals pin2 pin3 of JK501 to IC500 b If there is any trouble check the power for IC104 The power is normal but if the signal waveform to the IC is distorted or no signal replace it with a new one 6 3 3 Service hint Any picture Remark USB D ...

Страница 34: ...k DVCC_5V DVCC_3 3V ADC for IC202 If is NG replace it a new one 4 Check the following I2S signal flow from IC500 to IC700 Refer to Item 6 1 2 If there is any trouble check the power for each IC The power is normal but if the signal waveform to the IC is distorted or no signal replace it with a new one 5 Check if the digital audio AMP block is okay Refer to Digital Audio AMP guide on Item 6 2 If AM...

Страница 35: ...ith a new one 2 Check if MCS_BCK MCS_LRCK MCS_MCLK are entered from IC500 to IC202 3 Check if ADC_DATA is entered from IC202 to IC500 If no signal check DVCC_5V DVCC_3 3V ADC for IC202 If is NG replace it with a new one 4 Check the following I2S audio signal flow from IC500 to IC700 Refer to Item 6 1 2 If there is any trouble check the power for each IC The power is normal but if the signal wavefo...

Страница 36: ...201 to IC500 If no signal check DVCC_5V DVCC_3 3V ADC for IC202 If is NG replace it with a new one 4 Check the following I2S audio signal flow from IC500 to IC700 Refer to Item 6 1 2 If there is any trouble check the power for each IC The power is normal but if the signal waveform to the IC is distorted or no signal replace it with a new one 5 Check if the digital audio AMP block is okay Refer to ...

Страница 37: ...check DVCC_3 3V for IC200 replace IC200 with a new one if it has a problem 4 Check if MCS_BCK MCS_MLCK MCS_LRCK is entered from IC500 to IC203 5 Check if MIC_DATA_IN is entered from pin9 of IC203 to pin T1 of IC500 If no signal check DVCC_5V DVCC_3 3V for IC203 If it is abnormal change replace it a new one 6 Check the following I2S signal flow from IC203 to IC500 If there is any trouble check the ...

Страница 38: ... BT_RX TX is entered from pin4 pin6 of CN501 to pin L1 K1 to IC500 DSP 3 Check if MCS_BCK MCS_LRCK MIX_DATA IN is entered from IC500 to IC700 If no signal check 3 3 VA 1 2 VA for IC500 If it is abnormal change replace it a new one 4 Check the following I2S signal flow from IC500 to IC700 If there is any trouble check the power for each IC If the signals are abnormal replace it a new one 5 Check if...

Страница 39: ... Replace TH901 YES NO Is Vcc 10 V 18 V supplied to IC901 pin7 D902 normal YES NO Check or replace D902 Is there about 2 5 V at IC941 pin1 Replace IC941 YES YES NO D951 normal ZD932 normal Replace D951 Replace ZD932 YES NO NO D933 normal Replace D933 YES NO Power line of main PCB is short NO 3 22 ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 40: ...10 V 18 V supplied to IC911 pin4 D903 normal YES NO Check or replace D903 Check P_CTRL HIGH signal from MCS Check PC902 Q901 normal Replace Q901 Check or replace Q911 YES NO D951 normal Replace D951 YES NO Is there about 2 5 V at IC951 pin1 Replace IC951 YES NO Q911 base HIGH Power line of main PCB is short NO NO 3 23 ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 41: ... Check or replace IC101 Q105 YES NO Check or replace Q302 No VFD YES VFD_12V is normal DVCC_3 3V LED_5V is normal VFD_CLK STB DAT is normal Check or replace Q105 Check or replace IC103 IC101 Check or replace R311 R312 R313 YES YES YES NO NO NO Check or replace VFD 3 24 ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 42: ...YES MCS PART CHECK OK Refer to SMPS troubleshooting Check and change IC103 X501 32 768 kHz X500 24 MHz Check the operation Check and change IC100 NO NO NO Check if voltage of CN102 pin11 12 12 V Check if IC103 have DVCC_3 3V output Check if IC100 have 3 3 VA 1 2 VA output ...

Страница 43: ... Check data IC500 pin F2 B3 B1 Check each pin voltage FLD light on Refer to SMPS MPEG troubleshooting Check CN102 pin11 12 12 V input voltage Check if both end voltage of FL FL are over 1 85 V VH over 29 V Check CN300 connection and DVCC_3 3V of VDD CE302 Check IC500 VFD300 data communication STB DATA CLK NO NO NO NO NO YES YES YES YES YES YES ...

Страница 44: ...put Refer to SMPS troubleshooting Check CN102 pin11 12 12 V Check X700 12 288 MHz operation Check IC500 MLC3730 pin U13 RESET pin L14 SDA pin L13 SCL output Check X700 12 288 MHz Check IC700 input data Check IC700 Check CD Assy communication Pin22 23 24 Check IC700 TAS5548 input data pin24 PWM wave Check PWM modulator output FL Pin48 49 FR Pin46 47 Other output check Check line resistor output RST...

Страница 45: ...ooting Check each line resistor output voltage Replace the coil Check IC701 IC702 Pin51 52 42 43 38 39 30 31 input voltage Check PWM modulator input IC701 pin4 5 IC702 pin4 5 10 11 Check IC701 IC702 pin28 29 36 37 44 45 52 53 NO NO NO Check CN102 pin11 12 12 V pin3 4 5 48 5 V Check IC701 IC702 pin64 AMP_12V input Check output line coil ...

Страница 46: ...n42 SLCK pin43 LRCK pin44 MCLK Replace IC202 Check IC202 Pin5 DVCC_3 3V Pin6 High Pin14 DVCC_5V IC500 MLC3730 output data Check JK200 TU200 Check IC200 CS5346 pin23 24 26 27 input Check IC202 CS5346 pin41 output data Check IC500 MLC3730 input data Check IC202 Pin5 DVCC_3 3V Pin14 DVCC_5V NO NO NO NO NO YES YES YES YES YES YES YES OK ...

Страница 47: ...OTING GUIDE 7 TUNER FUNCTION CHECK TUNER FUNCTION CHECK Check tuner module data Check IC500 Pin P7 P8 P10 P11 Check tuner module voltage pin4 DVCC_3 3V Check tuner module TU200 operation NO NO YES YES YES Refer to function check ...

Страница 48: ...ick up IM driving Focus and tracking is ok Check Vcc of IC401 Replace IC500 Check cristal X400 Is motor ok about 12 Ω Is no signal at speaker Can the disc insert Disc reading is ok Check the signal of IC401 Check IC500 input output and control line Check the signal 16 9344 MHz at IC401 pin49 Focus tracking sled signal is ok Is load ok NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES ...

Страница 49: ...k JK500 JK501 Replace IC500 Check JK500 JK501 pin1 Check IC500 pin U7 U8 A7 A8 Display NO FILE Check USB_5V Display READ Plug in USB device Display NO USB Check USB_D D R565 R567 D503 D504 NO NO NO NO YES YES YES YES YES YES YES Check USB audio file in USB device MP3 WMA file is playable ...

Страница 50: ...3 33 WAVEFORMS OF MAJOR CHECK POINT 1 DSP IC500 X XI XO X XI XO Fig 1 2 X500 Crystal of system 24 MHz MAIN DSP R574 C547 Fig 1 1 X501 Crystal of RTC 32 768 MHz R593 both side 2 1 3 4 2 4 3 1 ...

Страница 51: ...3 34 2 SDRAM IC504 Fig 2 SDRAM 7 6 8 5 8 6 7 5 ...

Страница 52: ...3 35 3 SERVO IC401 X XI XO Fig 3 2 CD 16M IC401 pin31 Fig 3 1 X400 Crystal 16 9344 MHz 10 9 11 10 9 11 ...

Страница 53: ...g 4 1 LO LO MOT_OPEN MOT_CLOSE for Driving TRAY Motor IC400 pin6 7 9 10 15 14 13 12 Fig 4 3 SP SP for Driving SPINDLE Motor IC400 pin17 18 19 18 Fig 4 2 SL SL for Driving SPINDLE Motor IC400 pin11 12 17 16 13 15 18 19 16 17 14 12 ...

Страница 54: ...3 37 5 ADC IC202 6 USB JK500 Fig 6 USB D D JK500 Pin2 3 Fig 5 ADC I2S IC202 pin42 43 44 22 20 21 23 24 23 24 22 21 20 ...

Страница 55: ...3 38 7 BLUETOOTH CN501 B BT_TX BT_RX BT_RST BT_TX BT_RX BT_RST BT_TX BT_RX BT_RST Fig 7 BT_TX BT_RX BT_RST 27 25 26 25 26 27 ...

Страница 56: ... 39 3 40 MAIN MD FRONT SMPS MI C PORTABLE BLUETOOTH MODULE 23 pin 10 pin 23 pin 10 pin 10 pin 10 pin 17 pin 17 pin 8 pin 8 pin 12 pin 12 pin FAN 2 pin SPEAKER LED LED 4 pin 4 pin TUNER AUX WIRING DIAGRAM ...

Страница 57: ...LRCK MCLK 1 MB 8Mb S Flash RL FL SW1 RL_OUT_P N FL_OUT_P N RR_OUT_P N FR_OUT_P N M00_15 A00_16 SF_DI DO SF_CS SCK VFD_STB CLK DO RST VKK FL RMC MAIN VOL_A B MIC VOL A B KEY 1 2 OP_SW CL_SW UP_SW DN_SW D_SENSE MOT_MUTE CLOSE OPEN A B C D E F PD LD SPDO SLDO FOD TRD LOAD SLED SPIN TR F D2 PWM_LRCK BCK DATA DSP_O_DATA CD_RW MCLK LRCK BC K CD_DAT CD_RST For MIC PCM1808 SW1_OUT_P N 16 MB 128Mb SDRAM 4 ...

Страница 58: ... ADC PCM1808 TUNER TAS5548 VCC3 3 BT MODULE 3 3 VA TAS5631B TAS5631B 12 V 12 V 12 V RMC 150 mA 20 mA VCC 3 3 163 mA 500 mA 500 mA 28 mA 40 mA 50 mA 300 mA 350 mA 11 mA 25 mA RF IC BU9546 5 mA 10 mA EXPENDER SPK LED 11 mA 10 mA SPK LED 100 mA F S SDRAM 105 mA 32 mA 0 7 mA RESET IC 1 mA 70 mA 25 mA TPS562209 3 A P SENSE 46 V 46 V 12 V 12 V USB_5V BD2242G 2 1 351 mA 395 mA 553 7 mA 1000 mA 680 mA 70 ...

Страница 59: ... 32 V VDD12 1 21 V VDD30RTC 2 97 V VDD33 3 32 V VDD12 1 21 V VDD30RTC 2 97 V IC501 Serial Flash VCC 2 7 V 3 6 V VCC 3 32 V VCC 3 32 V IC502 Reset IC VCC 1 1 V 5 5 V VCC 3 32 V VCC 3 32 V IC503 Serial Flash VCC 2 7 V 3 6 V VCC 3 32 V VCC 3 32 V IC504 SDRAM VDD VDDQ 3 0 V 3 6 V VDD VDDQ 3 32 V VDD VDDQ 3 32 V IC700 PWM VCC 3 3 6 V VCC 3 29 V VCC 3 29 V IC701 AMP P VDD 25 V 52 5 V G VDD 10 8 V 13 2 V...

Страница 60: ...3 63 3 64 PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD TOP VIEW BOTTOM VIEW NOTE Warning Parts that are critical with respect to risk of fire or electrical shock ...

Страница 61: ...3 65 3 66 2 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 62: ...3 67 3 68 3 FRONT P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 63: ...3 69 3 70 4 JACK P C BOARD TOP VIEW BOTTOM VIEW ...

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