Samsung DVD-P421 Service Manual
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Samsung DVD-P421 Service Manual

Samsung DVD-P421 Service Manual

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ELECTRONICS
© Samsung Electronics Co., Ltd. MAR. 2002
Printed in Korea
AK82-00194A
DVD PLAYER
Chassis : Sellino
DVD-P421
SERVICE
DVD PLAYER
Manual
CONTENTS

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Summary of Contents for Samsung DVD-P421

  • Page 1: Table Of Contents

    ELECTRONICS 2. Disassembly and Reassembly 3. Troubleshooting 4. Exploded Views and Parts List 5. Electrical Parts List 6. Block Diagram 7. PCB Diagrams 8. Wiring Diagram 9. Schematic Diagrams © Samsung Electronics Co., Ltd. MAR. 2002 Printed in Korea AK82-00194A...

  • Page 2: Precautions

    Melal Part cal return path to the chassis. Any current measured must not exceed 0.5mA. Reverse the instrument power cord plug in the out- ohmmeter let and repeat the test. See Fig. 1-1. Fig. 1-2 Insulation Resistance Test Samsung Electronics...
  • Page 3 (5) antenna wiring. Always inspect in all areas tinuously and new instructions are issued whenev- for pinched, out-of-place, or frayed wiring, Do not er appropriate. change spacing between a component and the printed-circuit board. Check the AC power cord for damage. Samsung Electronics...

  • Page 4: Servicing Precautions

    Components i-enti- fied by shading, by( ) or by ( ) in the circuit dia- gram are important for safety or for the characteris- tics of the unit. Always replace them with the exact replacement components. Samsung Electronics...
  • Page 5 (6) Do not remove a replacement ESD device from its protective package until immediately before your are ready to install it.(Most replacement ESD devices are packaged with leads electrically short- ed together by conductive foam, aluminum foil or comparable conductive materials). Samsung Electronics...
  • Page 6 ◆ Be sure to put on a wrist strap grounded to the sheet. ◆ Be sure to lay a conductive sheet made of copper etc. Which is grounded to the table. Samsung Electronics...
  • Page 7 3) Make solder land 2 points short on Pick-up. (See Fig. 1-4) 4) Disassembly the Pick-up. Note : If the assembly and disassembly are not done in correct sequence, the Pick-up may be damaged. PICK-UP ASS'Y SOLDER LAND 2 POINTS SHORT Fig. 1-4 Samsung Electronics...

  • Page 8: Disassembly And Reassembly

    Note : Reassembly in reverse order. 2-1-1 Top Cabinet Removal 1) Remove 3 Screws Πon the back Top Cabinet. 2) Lift up the Top Cabinet in direction of arrow. Π3 SCREWS Fig. 2-1 Top Cabinet Removal Samsung Electronics...
  • Page 9 Note : If Tray Œ doesn’t open, insert a Screw driver ¨ into the Emergency hole ˇ (as shown in detailed draw- ing) and then push it in the direction of arrow “B”. Open Tray manually. Œ TRAY ´ DOOR-TRAY "A" "B" ˇ EMERGENCY HOLE ¨ SCREW DRIVER <Side View> Fig. 2-2 Door-Tray Removal Samsung Electronics...
  • Page 10 3) Remove Knob-Jog ∏, 5 Screws ”, and Key PCB ’. ´ 2 HOOKS ˇ 1 HOOK ” 5 SCREWS ’ KEY PCB Œ KNOB-VOLUME ¨ 1 HOOK ˆ 2 HOOKS ∏ KNOB-JOG Ø ASS'Y FRONT-CABINET Fig. 2-3 Ass’y Front-Cabinet Removal Samsung Electronics...
  • Page 11 1) Disconnect Flat-Cable,Connect-Wire from DCN1, DCN2 and DCN3 on Main PCB. 2) Remove 3 Screws Œ from the Ass’y Deck and lift it up. Œ 3 SCREWS DECK-ASS'Y FLAT-CABLE CONNECT-WIRE DCN1 DCN2 MAIN PCB DCN3 Fig. 2-4 Ass’y Deck Removal Samsung Electronics...
  • Page 12 2) Remove 6 Screws ¨, ˆ and lift up the Main PCB Ø. Œ 2 SCREWS ˇ JACK PCB ¨ 4 SCREWS ˆ 2 SCREWS Ø MAIN PCB ´ 1 SCREW Fig. 2-5 Main PCB, Jack PCB Removal Samsung Electronics...

  • Page 13: Pcb Location

    Disassembly and Reaasembly 2-2 PCB Location SUB PCB JACK PCB MAIN PCB KEY PCB Fig. 2-6 PCB Location Samsung Electronics...
  • Page 14 DECK ASS'Y MAIN PCB DCN2 ˆ Ø CONNECT-WIRE (HCN1) HOUSING PCB JACK PCB DCN3 ∏ ” MAIN PCB JACK PCB ’ ˝ PCN1 MAIN PCB JACK PCB PCNS1 Ô  JACK PCB KEY PCB KCN1 Fig. 2-7 Connector Diagram Samsung Electronics...
  • Page 15 3) Pull the Tray Disc ¨ to disassemble , while simultaneously pushing 2 Stoppers ˆ (left, right) in the direction arrow “C”, “D”. ˆ STOPPER ˇ SLIDER HOUSING "C" ¨ TRAY DISC "B" "A" Œ SCREW DRIVER "D" ´ EMERGENCY HOLE ˆ STOPPER Fig. 2-8 Tray Disc Removal Samsung Electronics...
  • Page 16 2) Lift down the Assy P/U Deck ˇ while simultaneously pushing 2 Hooks ¨, ˆ in the direction of arrow “A”, “B”. ¨ HOOK "A" ˆ HOOK "B" <Assembly Point> Œ DCN2 SLIDER HOUSING ´ DCN3 ˇ ASSY- P/U DECK Fig. 2-9 Assy P/U Deck Removal Samsung Electronics...
  • Page 17 ´ HOOK ˆ SLIDER HOUSING "A" ¨ GEAR TRAY ˇ PULLEY GEAR Œ BELT Ô HOOK ” MOTOR LOAD ASSY ˝ HOUSING PCB "C" Ø SOLDERING "C" "C" ’ 3 HOOKS <Bottom Side> Fig. 2-10 Housing Ass’y Removal 2-10 Samsung Electronics...
  • Page 18 1) Remove the Soldering of Motor Feed (+, - wire) Œ. 2) Remove the 4 Screws ´. 3) Lift up the Ass’y Brkt Deck ˇ. ´ 4 SCREWS ˇ ASSY-BRAK DECK Œ SOLDERING OF MOTOR FEED (+, - WIRE) Fig. 2-11 Sub Chassis Removal Samsung Electronics 2-11...
  • Page 19 ˝ MOTOR SPINDLE ˆ SHAFT PICK-UP Ø PICK-UP ASS'Y ¨ 2 SCREW ’ SPRING SPINDLE Œ WASHER ´ GEAR FEED B ∏ 1 SCREW ” 2 SCREWS ˇ GEAR FEED A Fig. 2-12 Ass’y Brkt Deck Removal 2-12 Samsung Electronics...

  • Page 20: Troubleshooting

    3. Troubleshooting Samsung Electronics...
  • Page 21 Troubleshooting Samsung Electronics...
  • Page 22 Troubleshooting Samsung Electronics...
  • Page 23 Troubleshooting Samsung Electronics...
  • Page 24 Troubleshooting Samsung Electronics...
  • Page 25 Troubleshooting Samsung Electronics...
  • Page 26 Troubleshooting Samsung Electronics...
  • Page 27 Troubleshooting Samsung Electronics...
  • Page 28 4. Exploded View and Parts List Page 4-1 Cabinet Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2 Deck Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 29: Exploded Views And Parts List

    Exploded Views and Parts List 4-1 Cabinet Assembly DECK-DVD MECHA (S.N.A.) 603 (ASSY-PCB-SUB) CN1B 601 (ASSY-PCB-MAIN) 602 (ASS'Y-PCB-JACK) S.N.A. (ASS'Y CABINET-BOTTOM) S.N.A. : Service Not Available UT01 UT02...
  • Page 30 AH61-00534B LEG-FRONT;DVD-M101,ABS 94HB,-,SILVER,4MR AH65-00003A CLAMP CORE;DVD-M101,NYLON 66,-,-,-,- AH64-00933B CABINET-TOP;DVD-M301/XAA,PCM T0.65,-,-,- 6003-000275 SCREW-TAPTITE;BH,+,B,M3,L10,BLK ,SWCH101 6003-000276 SCREW-TAPTITE;BH,+,B,M3,L10,ZPC(YEL),SWC AK92-00001A ASSY PCB-MAIN;DVD-P421,MAIN,USA,S.E.ASIA AH92-01365D ASSY PCB-JACK;DVD-P421/XAA,JACK ASS’Y, U AH92-01347A ASSY PCB-SUB;DVD-P701/XAA,SUB AC39-10200N POWER CORD;EP2,SPT-2,AWG#18,1.8MT,WAFER, AH92-01393A ASSY PCB-KEY;DVD-S325/XEF,EUROPE,KEY PCB CN1B 3809-001180 CABLE-FLAT;30V,-30to+80C,80mm,35P,1.25mm UT01 AH59-00093N REMOCON-ASS’Y;DVD-S321/XAA,-,-,-,-,-,-,- UT02 AH59-01043A REMOCON-ASS’Y;DVD-S321/XAA,-,-,-,-,-,-,-...

  • Page 31: Deck Assembly

    Exploded Views and Parts List 4-2 Deck Assembly H107 H105 H106 H103 H102 S.N.A. H108 H212 H104 H241 H250 H211 H203 H207 H208 H202 S.N.A. H204 H206 H205 H210 H209...
  • Page 32 Exploded Views and Parts List Loc. No Parts No. Description ; Specification Remark 6003-001157 SCREW-TAPTITE;PWH,+,B,M2,L6,ZPC(YEL),SWR 6001-001522 SCREW-MACHINE;FH,+,M2.6,L7,ZPC(YEL),SWRC 6009-001245 SCREW-SPECIAL;SWRCH18A,NYLOCK,SOCKET,HEX 6001-001466 SCREW-MACHINE;BH,+,M2,L6,ZPC(BLK),SWRCH1 6001-001257 SCREW-MACHINE;PWH,+,M1.7,L3,ZPC(YEL),SWR AH60-00010A SCREW-MACHINE-MOTOR;-,+,SWCH18AK,M1.7,L2 H102 AH66-00111B CLAMPER-ASSY;DP-5,POM+MAGNET,-,-,-,-,-,- H103 AH66-00123A PULLEY-GEAR;DP-7,POM M90-44,-,-,-,-,-,- H104 AH31-00024A MOTOR-LOAD ASSY;SM-2412L2,DP-7,-,-,-,-,- H105 6602-001076 BELT-RECTANGULAR;CR,T1.2,4.3%,1.2X25.1,B H106 AH66-00124A GEAR-TRAY;DP-7,POM,M90-44,-,-,-,-,-,-,- H107...
  • Page 33 Exploded Views and Parts List MEMO...

  • Page 34: Electrical Parts List

    5. Electrical Parts List Loc.No Part No Description ; Specification Remark Loc.No Part No Description ; Specification Remark AK92-00001A ASSY PCB-MAIN;DVD-P421,MAIN,USA,S.E.ASIA MR28 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 3708-001364 CONNECTOR-FPC/FFC/PIC;35P,1.25MM,STRAIGH MR29 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 2203-005148 C-CERAMIC,CHIP;100nF,10%,16V,X7R,TP,1608 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 2203-005148 C-CERAMIC,CHIP;100nF,10%,16V,X7R,TP,1608 MR30 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 DCN1 3708-001696 CONNECTOR-FPC/FFC/PIC;24P,1MM,STRAIGHT,S...
  • Page 35 IC ASIC;KS1454,DVD-611/XAA,160,+3.3V,+ SC11 2203-000715 C-CERAMIC,CHIP;3.3nF,10%,50V,X7R,TP,1608 SIC2 1105-001243 IC-DRAM;416C256,256KX16BIT,SOJ,40P,400 SC12 2203-000140 C-CERAMIC,CHIP;1.5nF,10%,50V,X7R,TP,1608 SIC3 1003-001298 IC-MOTOR DRIVER;KA3017,HQFP,48P,550MIL,1 SC13 2203-001652 C-CERAMIC,CHIP;470nF,+80-20%,16V,Y5V,TP, SIC4 0801-002097 IC-CMOS LOGIC;7ST08,AND GATE,SOP,5P,110M SC14 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 0504-000156 TR-DIGITAL;KSR2103,PNP,200MW,22K/22K,SOT SC15 2203-005148 C-CERAMIC,CHIP;100nF,10%,16V,X7R,TP,1608 2007-000381 R-CHIP;13Kohm,5%,1/16W,DA,TP,1608 SC16 2203-002398 C-CERAMIC,CHIP;22nF,10%,50V,X7R,TP,1608 SR14 2007-000078 R-CHIP;1Kohm,5%,1/16W,DA,TP,1608 Samsung Electronics...
  • Page 36 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 ZR23 2007-000078 R-CHIP;1Kohm,5%,1/16W,DA,TP,1608 ZC37 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 ZR27 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 ZC38 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 ZR28 2007-000084 R-CHIP;4.7Kohm,5%,1/16W,DA,TP,1608 ZC39 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 ZR29 2007-000078 R-CHIP;1Kohm,5%,1/16W,DA,TP,1608 2203-000626 C-CERAMIC,CHIP;0.022nF,5%,50V,NP0,TP,160 2007-000113 R-CHIP;33ohm,5%,1/16W,DA,TP,1608 ZC40 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 ZR35 3301-001309 CORE-FERRITE BEAD;AB,47ohm,1.6x0.8x0.8mm ZC41 2203-000257 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,1608 2007-000113 R-CHIP;33ohm,5%,1/16W,DA,TP,1608 Samsung Electronics...
  • Page 37 AR30 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM ZR96 2007-000078 R-CHIP;1Kohm,5%,1/16W,DA,TP,1608 AR301 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM 2801-003554 CRYSTAL-UNIT;27MHz,10ppm,28-AAM,12pF,40o AR302 2001-000003 R-CARBON;330ohm,5%,1/8W,AA,TP,1.8x3.2mm AR303 2001-000969 R-CARBON;75OHM,5%,1/8W,AA,TP,1.8X3.2MM AH92-01365D ASSY PCB-JACK;DVD-P421/XAA,JACK ASS’Y, U AR31 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM AC10 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, AR34 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 AC301 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5S,TP, AR35 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM AC302 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP,...
  • Page 38 2401-002165 C-AL;100uF,20%,16V,GP,TP,6.3x7,5 HR26 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 PES58 2401-001353 C-AL;470uF,20%,10V,GP,TP,8x11.5,5 HR29 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 PES59 2401-001353 C-AL;470uF,20%,10V,GP,TP,8x11.5,5 2001-000666 R-CARBON;33OHM,5%,1/8W,AA,TP,1.8X3.2MM PFD01 3601-000194 FUSE-CARTRIDGE;250V,1A,FAST-ACTING,GLASS HR41 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM PICS1 0604-000186 PHOTO-COUPLER;TR,-,200mW,DIP-4,ST HR44 2001-000800 R-CARBON;5.1KOHM,5%,1/8W,AA,TP,1.8X3.2M PICS2 AC14-12006D IC;KA431Z,TO-92,TAPING HR45 2001-000331 R-CARBON;12KOHM,5%,1/8W,AA,TP,1.8X3.2MM PICS3 1203-000122 IC-NEGA.FIXED REG.;7908,TO-220,3P,-,PLAS Samsung Electronics...
  • Page 39 2401-002165 C-AL;100uF,20%,16V,GP,TP,6.3x7,5 2402-000008 C-AL,SMD;47uF,20%,16V,GP,TP,6.6x6.6x5.4 2401-000302 C-AL;100uF,20%,25V,GP,TP,6.3x11,5 2402-000008 C-AL,SMD;47uF,20%,16V,GP,TP,6.6x6.6x5.4 VFD1 AH07-00043A VF DISPLAY;-,DVD-M201,74X9.0mm,1/13.75,9 2402-000008 C-AL,SMD;47uF,20%,16V,GP,TP,6.6x6.6x5.4 VIC1 1204-001978 IC-VIDEO PROCESS;LA73054,-,36P,-,SSOP,7V 2402-000202 C-AL,SMD;100uF,20%,10V,WT,TP,6.6x6.6x5. 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 2402-000008 C-AL,SMD;47uF,20%,16V,GP,TP,6.6x6.6x5.4 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 1105-001262 IC-DRAM;4S643232,4X512KX32BIT,TSOP(II) 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 1003-001391 IC-DISPLAY DRIVER;FLI2200,QFP,176P,945MI 2701-000114 INDUCTOR-AXIAL;10uH,10%,2.5x3.4mm 1002-001289 IC-D/A CONVERTER;ADV7196AKS,11BITS,MQFP, Samsung Electronics...
  • Page 40 3406-001072 SWITCH-ROTARY;5V DC,0.5mA,24Pulse/no cli KCN1 AH39-00310A CONNECT WIRE;-,UL1007,#26,UL1007,#26,7P, 0601-001448 LED;ROUND,ORG,3.1mm,610nm 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM 2001-000577 R-CARBON;2KOHM,5%,1/8W,AA,TP,1.8X3.2MM 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM 2001-000577 R-CARBON;2KOHM,5%,1/8W,AA,TP,1.8X3.2MM 2001-000878 R-CARBON;6.2KOHM,5%,1/8W,AA,TP,1.8X3.2M KSW1 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST KSW2 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST KSW3 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST KSW4 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST KSW5 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST KSW6 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST Samsung Electronics...
  • Page 41 Electrical Parts List MEMO Samsung Electronics...

  • Page 42: Block Diagram

    SIC3 (KA3017) SIC1 Post Actuator & Motor Driver (S5L1454A) Headphone Filter Servo + DSP Compo Decoder CVBS IC1 8M SDRAM AC3 & Yout Y/Pb/Pr MPEG 2 Cout 5.1 CH VIC1 (FLI2200) (ADV7196A) (LA73054) Progressive Video DAC C/R/Pr Comp/G/Y Samsung Electronics...
  • Page 43 Block Diagram MEMO Samsung Electronics...

  • Page 44: Pcb Diagrams

    7-4 Key - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...

  • Page 45: Main

    PCB Diagrams 7-1 Main Samsung Electronics...

  • Page 46: Jack

    PCB Diagrams 7-2 Jack Samsung Electronics...

  • Page 47: Sub

    PCB Diagrams 7-3 Sub 7-4 Key Samsung Electronics...

  • Page 48: Wiring Diagram

    8. Wiring Diagram SUB PCB Samsung Electronics...
  • Page 49 Wiring Diagram MEMO Samsung Electronics...

  • Page 50: Schematic Diagrams

    9-9 Key - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9-10 Jack PCB (Conductor Side) Samsung Electronics...

  • Page 51: Power

    Schematic Diagrams 9-1 Power Samsung Electronics...

  • Page 52: Av-Decoder/Main-Micom

    Schematic Diagrams 9-2 AV-Decoder/Main-Micom Samsung Electronics...

  • Page 53: Servo

    Schematic Diagrams 9-3 Servo Samsung Electronics...

  • Page 54: Front-Micom/Vfd Display

    Schematic Diagrams 9-4 Front-Micom/VFD Display Samsung Electronics...

  • Page 55: Video

    Schematic Diagrams 9-5 Video Samsung Electronics...

  • Page 56: Audio

    Schematic Diagrams 9-6 Audio Samsung Electronics...

  • Page 57: Sub

    Schematic Diagrams 9-7 Sub Samsung Electronics...

  • Page 58: Headphone

    Schematic Diagrams 9-8 Headphone Samsung Electronics...

  • Page 59: Key

    Schematic Diagrams 9-9 KEY 9-10 Samsung Electronics...

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