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37

HCD-S20

7-2.  CHASSIS  SECTION

  51 

A-1945-220-A  MAIN  BOARD, COMPLETE

  52 

A-1945-219-A  POWER BOARD, COMPLETE

 53 

4-465-834-01 SCREW 

(3)

0

 AC1 

9-885-185-52  CORD, POWER (E32)

0

 AC1 

9-885-185-53  CORD, POWER (MX)

0

 AC1 

9-885-185-54  CORD, POWER (AR)

0

 AC1 

9-885-185-55  CORD, POWER (EA)

0

 AC1 

9-885-185-56  CORD, POWER (KR)

0

 AC1 

9-885-187-01  CORD, POWER (SP)

0

 ACP1 

9-885-169-85  ADAPTOR, CONVERSION PLUG (E32)

0

 CDM1 

A-1945-216-A  LOADER (TDL-5) & OPU ASSY

 (Including optical pick-up and 

fl

 exible 

fl

 at cable)

  Ref. No. 

Part No. 

Description 

Remark

  Ref. No. 

Part No. 

Description 

Remark

D

C

B

D

C

B

A

A

front panel section

CDM1

AC1

not supplied

53

52

53

53

51

53

53

not supplied

not supplied

not 
supplied

not supplied

ACP1

(E32)

Summary of Contents for HCD-S20

Page 1: ...n the Optical Pick up Block with 7mm aperture Frequency response 20 Hz 20 kHz Signal to noise ratio More than 90 dB Dynamic range More than 90 dB Tuner section FM stereo FM superheterodyne tuner Antenna FM lead antenna Tuning range 87 5 MHz 108 0 MHz 50 kHz step USB section USB port Type A maximum current 500 mA Supported audio formats Supported bit rate MP3 MPEG 1 Audio Layer 3 32 kbps 320 kbps V...

Page 2: ...oard 28 6 13 Schematic Diagram USB Board 29 6 14 Printed Wiring Board VFD Board 30 6 15 Schematic Diagram VFD Board 31 6 16 Printed Wiring Board KEY Board 32 6 17 Schematic Diagram KEY Board 33 6 18 Schematic Diagram POWER Board 34 6 19 Printed Wiring Board POWER Board 35 7 EXPLODED VIEWS 7 1 Top Cover Section 36 7 2 Chassis Section 37 7 3 Front Panel Section 38 TABLE OF CONTENTS NOTES ON CHIP COM...

Page 3: ...f the heated tip is applied for too long so be careful Strong viscosity Unleaded solder is more viscous sticky less prone to flow than ordinary solder so use caution not to let solder bridges occur such as on IC pins etc Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder ABOUT PART REPAIR OF EACH BOARD The part that mounted o...

Page 4: ...N Distinguish by model number label stuck on the rear side of a main unit MODEL NUMBER LABEL 05 2013 110 240V AC area in E model E32 Singapore model SP1 Saudi Arabia model EA3 Argentina model AR2 Mexican model MX2 Korean model KR2 ...

Page 5: ...Hz is not normal check if Y10 on the MAIN board and its peripheral circuit is in failure 5 Check if the status of U17 and U25 on the MAIN board work well the normal status of pin 27 of U25 on the MAIN board is sine wave with frequency 11 0592 MHz And pin 23 of U25 on the MAIN board is high in normal status If pin 27 of U25 on the MAIN board wave is not normal check if U17 and U25 on the MAIN board...

Page 6: ...disc tray 2 Turn the traverse gear in the direction of an arrow 1 Refer to SECTION 2 DISASSEMBLY page 7 remove the top cover assy S20 and the rear panel block from the unit bottom side top side Rear view Rear view MAIN board POWER board VFD board KEY board USB board loader TDL 5 OPU assy CDM1 ...

Page 7: ...VER ASSY S20 Page 7 SET 2 3 POWER CORD AC1 REAR PANEL Page 8 2 4 CD DOOR S20 Page 8 2 6 FRONT PANEL BLOCK Page 9 2 9 MAIN BOARD Page 11 2 7 VFD BOARD Page 10 2 8 USB BOARD Page 10 2 10 POWER BOARD Page 11 2 5 LOADER TDL 5 OPU ASSY CDM1 Page 9 1 three screws 2 2 Remove the top cover assy S20 in the direction of an arrow 5 top cover assy S20 3 four claws 4 connector XP1 3 four claws 3 two claws 3 th...

Page 8: ...3 Remove the rear panel block in the direction of an arrow bottom side 4 power cord connector CN503 5 power cord AC1 5HDU YLHZ top side Note When installing the power cord AC1 Check the direction of connector 3 four claws 4 CD door S20 2 Pull out the disc tray 1 Turn the traverse gear in the direction of an arrow bottom side top side Rear view Rear view ...

Page 9: ...ng the connector part Note 1 Before disconnecting the flexible flat cable of the loader TDL 5 OPU assy CDM1 solder the short land Bottom view Note 4 The wire is soldered to the terminal of the switch Be careful so that not cut or bend the terminal 2 6 FRONT PANEL BLOCK 4 six claws 5 front panel block Rear right view 3 connector XP12 1 connector XP6 2 connector XP9 Wire setting Wire from USB board ...

Page 10: ...Wire VeWWiQJ 2 VFD board VFD board rRQW SDQeO EORFN reDr YieZ rRQW SDQeO EORFN reDr YieZ 2 two screws BVTP2 6 2 screw 1 2 screw 1 3 earth plate 5 USB board USB board Wire VeWWiQJ 4 six claws 1 VOL knob rRQW SDQeO EORFN reDr YieZ rRQW SDQeO EORFN reDr YieZ ...

Page 11: ...connector CON2 2 connector XP6 3 connector XP9 Wire from USB board is upper Wire from VFD board is lower Note These connectors have the same number of pins When connecting be careful not to mistake Rear view Rear view ire VeWWiQJ 3 POWER board 1 connector CON2 2 screw 3 2 screw 3 Rear view ...

Page 12: ...er on 2 Press two buttons of the x on the remote commander and EQ on the main unit simultaneously for five seconds 3 The message RESET OK is displayed on the fluorescent indi cator tube then returns to the normal mode TRAY LOCK It can be unable to take sample disc out of disc tray in the shop Procedure 1 Press the 1 button to turn the power on 2 Press the Z button to open the disc tray 3 Set a dis...

Page 13: ...F TP46 VREF1 oscilloscope DC range Procedure 1 Connect the oscilloscope to TP66 PUHRF and TP46 VREF1 on the MAIN board 2 Press the 1 button to turn the power on 3 Press the FUNCTION button to turn the CD function 4 Set the disc YEDS 18 in the main unit and press the u button to playback 5 Confirm that oscilloscope waveform is as shown in the figure below eye pattern A good eye pattern means that t...

Page 14: ...ted to XP4 on the MAIN board Check if the wire is inserted to XP3 and the FFC is inserted to XP2 on the MAIN board NG OK Check if the CD playback is OK OK Check if FM reception and AUDIO IN function is OK OK No problem NG NG Insert the wire NG Insert the wire and the FFC Check if the signal at TP66 on the MAIN board is OK OK Check if the wire to XP6 on the MAIN board is inserted NG NG NG Insert th...

Page 15: ...s Displayed PROTECT is displayed on the VFD Check the if the voltage at pin 1 of CON2 on the POWER board is 12V Exchange the MAIN board OK NG Exchange the POWER board 4 Flow When LOCKED is Displayed LOCKED is displayed on the VFD when OPEN CLOSE button is pressed Hold down STOP button of remote commander and OPEN CLOSE button of main unit for 5 seconds And the check if UNLOCKED is displayed on the...

Page 16: ...iver IC CD5890 ADC AK5358A AUDIO SW IC 74HC4052 UART I2S 3 3V 1 2V IR IRR006 KEY I2C VFD Display FV935ND L R I2S VFD Driver S16312 I2C USB USB005 RTC PCF8563 I2C AUX IN EAR004 FM RZ5B705 L R L R 12V STB_3 3V Power Board DC DC EUP3482A 110V 220V AC IN MOS ON OFF 12V LDO G9091 MOS ON OFF 5V LDO G9091 FM3 3V POWER OTHER CONTROL DATA SPI IR SPI ADC 5W 2 I O USB 5V 24V ...

Page 17: ...ASH 1 4 MAIN AMP BOARD 4PIN 2 0 SPHE8104MW ADC 64M SDRAM AK5358 XP9 VFD_CS GND 12V VFD_CLK 24V INSW GND SL SL GND HOMESW SP SP TUNER L R Out IR GND GND POWER_BOARD 4PIN 2 5mm 4 1 4 1 4PIN 2 0mm XS1 GND 12V 12V GND KEY BD 3PIN 2 0 4PIN 2 0 24PIN 0 5 XP2 1 XP3 6PIN 2 0 6 1 5PIN 2 0 5 1 XP4 4 8ohm 74HC4053 AUDIO IN TUNER AUDIO IN L R 5890 MOTER DRIVER IIS DATA IN SPI IIS DATA OUT MCU M0516 IIC UART I...

Page 18: ...TR CTR Feed Back ADC AK5358 AMP MCU And MPEG Commuication SPK2 0 OUT 12V LDO STB3 3V 12V 3 3V 1 2V 3 3V I2S In Signal 4PIN 2 5 XS1 I2S IN Signal VFD Board Control 12PIN 2 0 SPHE8104MW M0516 MCU XP12 Tunner Motor Contr EUP3482A 5V I2C Signal 74HC4052 Audio IN 64M SDRAM L R L R LDO FM3 3V 5V I2C Signal 4PIN 2 0 XP9 USB Board Control Volume Main Board PCB LAYOUT ...

Page 19: ...TCH MCU GPIO ADC_AK5358A MOTO DRIVER IC 5890 OPU DC DC 5890 DVCC3 FLASH SRV33 SDRAM RFV33 DVCC3 OPU SUNPLUS 8104MW DC DC 5890 ADC_AK5358A V12 5V EUP3482A POWER BOARD 12V VFD 24V 6mA DVCC3 5V 0 5A 15mA MAX 2 3A 12V STA339BWS B SWITCH AMP_VCC 0 84A 160mA 35mA SUNPLUS 8104MW 650mA 18mA 25mA 500mA 74HC4052 50mA A5V ...

Page 20: ...nted in each block For Printed Wiring Boards Note Pattern from the side which enables seeing The other layers patterns are not indicated Caution Pattern face side Conductor Side Parts face side Component Side Parts on the pattern face side seen from the pattern face are indicated Parts on the parts face side seen from the parts face are indicated Circuit Boards Location Note The components identif...

Page 21: ...HCD S20 HCD S20 21 21 6 5 PRINTED WIRING BOARD MAIN Board Uses unleaded solder See page 20 for Circuit Boards Location MAIN BOARD COMPONENT SIDE MAIN BOARD CONDUCTOR SIDE A B C D E F G 1 2 3 4 5 6 7 8 ...

Page 22: ...LDO_G9091 330T11U U4 LDO_G9091 330T11U C26 0 1uF 25V Y5V C26 0 1uF 25V Y5V C2 4 7uF 16V Y5V C2 4 7uF 16V Y5V R18 10K R18 10K U3 LDO_G9091 330T11U U3 LDO_G9091 330T11U R20 3 9K R20 3 9K R16 47K R16 47K TM43 TM43 C24 0 1uF 25V Y5V C24 0 1uF 25V Y5V TM9 TM9 TP18 TP18 Q5 NPN_3DG3904M Q5 NPN_3DG3904M FB3 120 2A FB3 120 2A 22uF 50V CE6 22uF 50V CE6 22uF 50V CE8 22uF 50V CE8 Q11 P_AP2305 Q11 P_AP2305 FB4...

Page 23: ... 0 1uF 25V Y5V C36 0 1uF 25V Y5V R13 100K R13 100K TP65 TP65 TP33 TP33 TM53 TM53 R69 2 2 R69 2 2 TP53 TP53 C47 0 1uF 25V Y5V C47 0 1uF 25V Y5V R62 10K R62 10K Close to 8202RX D Close to 8202R D Close to SDRAM Close to 8202RX D Close to 8202RX D Close to 8202RX D Put these circuits as closer as possible to MPEG DECODER VREF1 M_D1 TRACK_S SPDL_S SLED_S XOPVIP1 M_A10 M_A2 M_A1 M_RAS M_A11 M_CAS M_A0 ...

Page 24: ... 1uF 25V Y5V XP6 4PIN 2 0mm XP6 4PIN 2 0mm TM14 TM14 C92 100pF 50V NP0 C92 100pF 50V NP0 R137 4 7K R137 4 7K C103 0 1uF 25V Y5V C103 0 1uF 25V Y5V ESD10 LVE16Y1R0 ESD ESD10 LVE16Y1R0 ESD PROTETION IC U9 SDRAM_64Mb_M12L64164A 7T U9 SDRAM_64Mb_M12L64164A 7T C94 0 1uF 50V X7R C94 0 1uF 50V X7R TM41 TM41 ESD9 LVE16Y1R0 ESD ESD9 LVE16Y1R0 ESD PROTETION IC C101 0 1uF 25V Y5V C101 0 1uF 25V Y5V C95 0 1uF...

Page 25: ... 4 7K XP8 5PIN 2 0mm XP8 5PIN 2 0mm C208 100pF 50V NP0 C208 100pF 50V NP0 TM55 TM55 TM57 TM57 C106 1000pF 50V X7RC106 1000pF 50V X7R R117 4 7K R117 4 7K R87 0 R87 0 47uF 16V CE33 47uF 16V CE33 U10 PCF85163 U10 PCF85163 TM4 TM4 TM58 TM58 R80 0 R80 0 R127 0 R127 0 D3 LL4148 D3 LL4148 MCU_RST ICE_CLK ICE_DAT TIME_ON OFF VFD_CS MPEG_RST POWER_EN1 TUNER_SCL AUDIO_MUTE ADC_KEY1 FAULT TUNER_SDA ICE_DAT I...

Page 26: ... TP31 TP31 C121 1000pF 50V X7R C121 1000pF 50V X7R TM11 TM11 R177 0 R177 0 C139 0 047uF 10V X7R C139 0 047uF 10V X7R TM50 TM50 R145 4 7K R145 4 7K C142 3900pF 50V X7R C142 3900pF 50V X7R R138 4 7K R138 4 7K C146 10uF 10V Y5V C146 10uF 10V Y5V C22 0 1uF 50V X7R C22 0 1uF 50V X7R R103 47K R103 47K R139 0 R139 0 C143 1200pF 50V X7R C143 1200pF 50V X7R U14 74HC4052 U14 74HC4052 C104 47pF 50V NP0 C104 ...

Page 27: ...C270 330pF 50V X7R U25 STA339BWS U25 STA339BWS R176 0 R176 0 C226 0 47uF 63V C226 0 47uF 63V R264 6 2 R264 6 2 D11 LL4148 D11 LL4148 220uF 25V CE55 220uF 25V CE55 C272 0 01uF 50V X7R C272 0 01uF 50V X7R R267 22 R267 22 100uF 16V CE56 100uF 16V CE56 C221 0 1uF 50V X7R C221 0 1uF 50V X7R C258 0 1uF 50V X7R C258 0 1uF 50V X7R R257 2 2K R257 2 2K L12 22uH 1A L12 22uH 1A TP32 TP32 R255 2 2 R255 2 2 C26...

Page 28: ...HCD S20 HCD S20 28 28 6 12 PRINTED WIRING BOARD USB Board Uses unleaded solder See page 20 for Circuit Boards Location USB BOARD COMPONENT SIDE USB BOARD CONDUCTOR SIDE A B C D E 1 2 3 4 5 ...

Page 29: ... 50V NP0 ESD4 NC PESD5V0S1BA 30K 35pF ESD4 NC PESD5V0S1BA 30K 35pF XS3 4PIN 2 0mm 100mm XS3 4PIN 2 0mm 100mm ESD12 NC PESD5V0S1BA 30K 35pF ESD12 NC PESD5V0S1BA 30K 35pF R1 22 R1 22 C8 5pF 50V NP0 C8 5pF 50V NP0 XS2 4PIN 2 0mm 100mm XS2 4PIN 2 0mm 100mm VR1 ENCODER VR1 ENCODER C7 100pF 50V NP0 C7 100pF 50V NP0 R2 22 R2 22 VCC D D GND Shell B Shell A 1 2 3 4 1 2 3 4 VOL GND VOL GND GND VCC 2 1 1 2 3...

Page 30: ...HCD S20 HCD S20 30 30 Uses unleaded solder See page 20 for Circuit Boards Location VFD BOARD COMPONENT SIDE VFD BOARD CONDUCTOR SIDE A B C 1 2 3 4 5 6 6 14 PRINTED WIRING BOARD VFD Board ...

Page 31: ...K R17 51K C1 0 1uF 50V X7R C1 0 1uF 50V X7R VFD135 VFD135 C7 4 7uF 16V Y5V C7 4 7uF 16V Y5V C9 1000pF 50V X7R C9 1000pF 50V X7R R8 330 1 R8 330 1 R3 10K R3 10K IR1 IR_10mm IR1 IR_10mm R16 1K R16 1K R33 4 7K R33 4 7K Q1 NPN_3DG3904M Q1 NPN_3DG3904M R5 2 2 R5 2 2 R25 100 R25 100 C5 0 1uF 50V X7R C5 0 1uF 50V X7R R39 1K R39 1K R9 18K R9 18K R10 4 7K R10 4 7K R20 10K R20 10K ZD1 BZX79C6V2 ZD1 BZX79C6V...

Page 32: ...HCD S20 HCD S20 32 32 KEY BOARD COMPONENT SIDE KEY BOARD CONDUCTOR SIDE A B C D 1 2 3 4 5 6 7 Uses unleaded solder See page 20 for Circuit Boards Location 6 16 PRINTED WIRING BOARD KEY Board ...

Page 33: ...100pF 50V NP0 C57 100pF 50V NP0 SW8 SW8 R3 15K 1 R3 15K 1 R5 15K 1 R5 15K 1 ESD11 NC PESD5V0S1BA 30K 35pF ESD11 NC PESD5V0S1BA 30K 35pF SW10 SW10 SW2 SW2 ESD12 NC PESD5V0S1BA 30K 35pF ESD12 NC PESD5V0S1BA 30K 35pF SW3 SW3 SW9 SW9 SW4 SW4 SW6 SW6 SW1 SW1 SW5 SW5 SW1 0V SW2 0 6V SW3 1 34V SW4 2V SW5 2 72V 9 1᮹ ᤶᑻᄤ 1 2 3 EQ EQ CANCEL CANCEL 2 1 FUNCTION FUNCTION ENTER ENTER 2 1 DOWN DOWN OPEN OPEN TU...

Page 34: ... 4PIN 2 54mm CON2 4PIN 2 54mm R509 22 R509 22 R5053 150K R5053 150K CY503 470PF 250Vac CY503 470PF 250Vac R529 1K R529 1K U533 AS431 U533 AS431 CX501 0 1uF 250VAC CX501 0 1uF 250VAC 820UF 50V CE534 820UF 50V CE534 R5054 150K R5054 150K RV501 VDR 470V RV501 VDR 470V R523 100K R523 100K R503 1M R503 1M C553 0 1uF 50V X7R C553 0 1uF 50V X7R LIF502 NC LIF502 NC 10uF 50V CE505 10uF 50V CE505 NC CE501 N...

Page 35: ...HCD S20 35 POWER BOARD COMPONENT SIDE POWER BOARD CONDUCTOR SIDE A B C D E 1 2 3 4 5 Uses unleaded solder See page 20 for Circuit Boards Location 6 19 PRINTED WIRING BOARD POWER Board ...

Page 36: ...y are seldom required for routine ser vice Some delay should be anticipated when ordering these items The mechanical parts with no reference number in the exploded views are not sup plied Color Indication of Appearance Parts Ex ample KNOB BALANCE WHITE RED Parts Color Cabinet s Color Abbreviation AR Argentina model E32 110 240V AC area in E model EA Saudi Arabia model KR Korean model MX Mexican mo...

Page 37: ...885 185 55 CORD POWER EA 0 AC1 9 885 185 56 CORD POWER KR 0 AC1 9 885 187 01 CORD POWER SP 0 ACP1 9 885 169 85 ADAPTOR CONVERSION PLUG E32 0 CDM1 A 1945 216 A LOADER TDL 5 OPU ASSY Including optical pick up and flexible flat cable Ref No Part No Description Remark Ref No Part No Description Remark D C B D C B A A front panel section CDM1 AC1 not supplied 53 52 53 53 51 53 53 not supplied not suppl...

Page 38: ...2 X 2587 412 1 FRONT PANEL ASSY S20 103 A 1945 217 A USB BOARD COMPLETE Including KEY board 104 4 465 832 01 SCREW 1 105 A 1945 218 A VFD BOARD COMPLETE Ref No Part No Description Remark Ref No Part No Description Remark not supplied 104 104 104 104 101 102 105 103 ...

Page 39: ...MEMO HCD S20 39 ...

Page 40: ...HCD S20 REVISION HISTORY Ver Date Description of Revision 1 0 2013 04 New ...

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