Samsung DVD-808K Service Manual Download Page 87 | Manualshive

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Circuit Descriptions

7-22

Samsung Electronics

7-5-3. Low pass filter VF1, VF2

VF1 and VF2 remove quantization noise occurring in the course of D/A conversion as low pass filter with
cut-off frequency of 6.75MHz. VR5 and VR6 are input impedances and convert the level of subcarrier.

Fig. 7-40 Frequency features of VF1,VF2

7-5-4 Amplifier

VQ1 is buffer and the gain is amplified through VQ2, VQ3. The main factors which determine the gain are VR10
and VR11, and the gain is 1+VR11/VR10. VR12 is the main factor that determines the offset of output signal of
amplifier unit and the rate is approx. VR 12/(VR10+VR11)

Fig. 7-41 Amplifier

7-6-5 Buffer

VQ4, VQ5, and VQ6 are buffer unit and circuit that double the drive power so as to output without signal conver-
sion when connected with exterior devices. VC11 is an AC coupling capacitor, VR19 is an essential impediance at
video signal interface and being matched with the impediance in the input block of exterior devices determines the
level of video signal.

0(dB)

-3(dB)

6.75MHz

Frequency

GAIN(dB)

Video input

Video output

+8V

VR9

VR12

-8V

+8V

VR11

VR10

VQ2
C1623

VQ3
A812

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Summary of Contents for DVD-808K

Page 1: ...assembly 6 IC Descriptions 7 Circuit Descriptions 8 Troubleshooting 9 Exploded Views and Parts List 10 Packing Diagram 11 Electrical Parts List 12 Block Diagram 13 PCB Diagrams 14 Wiring Diagram 15 Schematic Diagrams Manual DIGITAL VERSATILE DISC PLAYER CONTENTS SERVICE MANUAL DVD 907K 808K 807K DVD 9901A ELECTRONICS Samsung Electronics Co Ltd MAR 1999 Printed in Korea AH68 00089A ...

Page 2: ...derwriters Laboratories UL 1270 40 7 With the instrument s AC switch first in the ON position and then in the OFF position measure from a known earth ground metal waterpipe conduit etc to all exposed metal parts of the instrument anten nas handle brackets metal cabinets screwheads metallic overlays control shafts etc especially any exposed metal parts that offer an electrical return path to the ch...

Page 3: ... of place or frayed wiring Do not change spacing between a componect and the printed circuit board Check the AC power cord for damage 5 Components parts and or wiring that appear to have overheated or that are otherwise damaged should be replaced with components parts and or wiring that meet original specifications Additionally determine the cause of overheating and or damage and if necessary take...

Page 4: ...autions are indicated or printed on the cabinet chassis or components When servic ing follow the printed or indicated service precau tions and service materials 3 The components used in the unit have a specified flame resistance and dielectric strength When replacing components use components which have the same retings Components identified by shading by x or by in the circuit diagram are importa...

Page 5: ... Use only a grounded tip soldering iron to solder or unsolder ESD devices 4 Use ouly an anti static solder removal devices Some solder removal devices not classified as anti static can generate electrical charges suffi cient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damge ESD devices 6 Do not remove a replacement ESD device fro...

Page 6: ... as the sheet 4 Romove the optical pick up block 5 Perform work on top of the conductive sheet Be careful not to let your clothes or any other static sources to touch the unit 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 Fig 1 3 6 Short the short terminal on the PCB which is inside the Pick Up ASS Y before...

Page 7: ...assemble the deck 4 Disassemble the deck PCB 5 Replace the Pick up 1 5 2 Assembly 1 Replace the Pick up 2 Assemble the deck PCB 3 Reassemble the deck 4 Switch LD SW3 on deck PCB to O and insert FPC into Main PCB CN1 See Fig 1 4 1 5 Pick up disassembly and ressembly Note If the assembly and disassembly are not done in correct sequence the Pick up may be damaged Fig 1 4 ...

Page 8: ...Samsung Electronics 2 1 2 Reference Information 2 1 Semiconductor Base Diagram Fig 2 1 RQ1 SS9012 S9012 G 634 E B C D G S K184 Y 6A SQ1 K184 ...

Page 9: ...ter installing cold solder joints etc 2 2 1 Precaution for the chip Replacement The tools for the chip replacement are as follows 1 Thin tip type soldering iron 2 Small flat blade tip type soldering iron 3 Special desoldering tip iron 4 Airblower unit 5 Flat Package Pick up 6 Flux can be cleaned by water 7 0 3mm thin solder can be cleaned by water 8 Desoldering wire 9 Tweezers 2 2 2 Tools for the ...

Page 10: ...ads When the solder melts carefully twist the iron Raise and remove the IC 2 Using shaped airblower unit Select the correct nozzle Select the temperature and airblow suggested temperature 7 airblow 4 Engage the IC removing tool Use the airblow to preheat the IC for about 5 seconds then heat with the nozzle until the IC remover lifts the part from the board IC Fig 2 4 Installing the Part 1 Use deso...

Page 11: ...Precautions 2 4 Samsung Electronics MEMO ...

Page 12: ...NVERTER DIGITAL TO ANALOG CONVERTER DIGITAL VIDEO ENCODER FRONT MICOM ECHO SOUND PROCESSOR Am27C040 KM681000 TA1236F TA1253F BA6840 TC9420F TC90A19F KM48C512 ZiVA D6 L AM27C4096 KM416C254DJ AK4324 PCM1720 PCM1723 SAA7128 LC86P6232 ES56033 MIC3 RIC1 RIC2 SIC5 SIC7 DIC1 DIC2 BIC1 BIC2 AIC1 AIC2 AIC3 VIC1 FIC1 KIC1 15 1 2 Servo 15 1 4 A V Decoder 15 1 5 Audio 15 1 6 Video 15 2 Front Board 15 4 Karaok...

Page 13: ...W D T O U T P00 to P07 AD0 to AC7 P10 to P17 AD8 to AD15 A8 toA15 P20 to P27 A0 to A7 A16 to A23 P30 RD P31 WR P32 HWR P33 WAIT P34 BUSRQ P35 BUSAK P36 R W P37 RAS P40 CS0 CAS0 P41 CS1 CAS1 P42 CX2 CAS2 cPORT A High Frequency OSC Low Frequency OSC INTERRUPT CONTROLLER WATCH DOG TIMER PORT 0 PORT 2 PORT 3 CS WAIT CONTROLLER 3 BLOCK PORT 1 10 BIT 8CH A D CONVERTER SERIAL I O CH 0 SERIAL I O CH 1 PAT...

Page 14: ...IC Descriptions 6 3 Samsung Electronics PIN ASSIGNMENT ...

Page 15: ...omory Strobe for Writing Data AD0 to AD7 Audio DAC Data Latch 0 AKM4324 Control L 16 24bit H 20bit Address Bus 19 Request CPU Bus Wait Bus Request Bus Acknowledge EEPROM Trans Clock I2S EEPROM Trans Data I2S Chip Select 0 Chip Select 1 Chip Select 2 DVD CD Mode Control DVD Low Door Open Motor Control Door Close Motor Control Single Dual Disc Select Single Low Video Encoder Trans Data l2C Video Enc...

Page 16: ...1 30 29 28 27 26 25 24 23 22 21 20 19 18 17 TOP VIEW Output Enable Chip Enable and Prog Logic Output Buffers Y Gating 2 097 152 Bit Cell Matrix Y Decoder A0 A17 Address Inputs OE X Decoder Data Outputs DQ0 DQ7 CE Vpp Vcc Vss CE PCM BLOCK DIAGRAM FUNCTION Address Inputs Chip Enable Input Data Input Outputs Output Enable Input Program Enable Input Vcc Syply Voltage Program Voltage Input Ground PIN A...

Page 17: ...ns A4 A5 A6 A7 A12 A13 A14 A15 A16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 32 DIP 32 SOP N C A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I O1 I O2 I O3 VSS VCC A15 CS2 WE A13 A8 A9 A11 OE A10 CS1 I O7 I O8 I O6 I O5 I O4 TOP VIEW PIN ASSIGNMENT NAME CS1 CS2 FUNCTION Chip Select Inputs OE Output Enable Input WE Write Enable Input A0 A16 Address Inputs I O1 I O...

Page 18: ...6 7 Samsung Electronics 6 4 RF IC RIC1 TA1236F BLOCK DIAGRAM ...

Page 19: ... Signals DA DATA 2 0 DA LRCK DA BCK DA XCK IEC958 MADDR 8 0 MROMA 8 0 M A D D R H 4 M A D D R H 1 MDATA 31 0 MDATA 47 32 MROMDATA 15 0 MDATA 60 48 MROMA 21 9 MDATA 63 61 M R A S 1 M R A S 0 MCAS 1 0 M W E M C E SYSCLK V D D V S S A_VSS A_VDD V D D 5 M A X R E S E T VDATA 7 0 H S Y N C V S Y N C V C K DVD DATA 0 CD DATA DVD DATA 1 CD LRCK DVD DATA 2 CD BCK DVD DATA 3 CD C2PO DVD DATA 4 DVD DATA 5 D...

Page 20: ...ent conversion Four division detector D input Phase difference signal off set compensation polarity selection input Phase difference current voltage time constant setting external capacitor Phase difference current voltage time constant setting external capacitor Power 5V input Grond Tracking error signal ouput Mute control input For test BD channel HPF time constant setting external capacitor For...

Page 21: ... pin GND Ground pin H1 Hall signal input pin H1 Hall signal input pin H2 Hall signal input pin H2 Hall signal input pin H3 Hall signal input pin H3 Hall signal input pin VH Hall bias pin CNF Capacitor for phase compensation connection pin NAME Pin 21 22 23 24 25 26 ECR FUNCTION Standard output current control pin EC Output current control pin ST SP Start stop switch pin REV Reverse pin Vcc Power s...

Page 22: ...6 11 Samsung Electronics 6 7 SERVO CD DATA PROCESSOR SIC7 TC9420F BLOCK DIAGRAM ...

Page 23: ...IC Descriptions 6 12 Samsung Electronics PIN ASSIGNMENT ...

Page 24: ...clock oscillation circuit input System clock oscillation circuit output power supply for system clock oscillation circuit D A converting section power supply R channel data forward rotation output D A converting section ground D A converting section reference voltage L channel data forward rotation output D A converting section power supply Test mode terminal Test mode terminal Test mode terminal ...

Page 25: ...6 14 Samsung Electronics 6 8 DVD DATA PROCESSOR DIC1 TC90A19F BLOCK DIAGRAM ...

Page 26: ...IC Descriptions 6 15 Samsung Electronics PIN ASSIGNMENT ...

Page 27: ... I O External RAM data bus I O External RAM data bus I O MPEG data output MPEG data output MPEG data output MPEG data output Digital ground Digital power supply MPEG data output MPEG data output MPEG data output MPEG data output SERR SBGN SENB SDCK DVSS1 SREQ RSTN DVDD1 STDA STCK Digital power supply MPEG data reliability flag output data error L MPEG output secter synchronous signal output secter...

Page 28: ...onnection RAS OE CAS W Control Clocks VBB Generator Vcc Vss Data in Buffer Data out Buffer Row Decoder Refresh Timer Refresh Control Refresh Counter Row Address Buffer Col Address Buffer A0 A9 A0 A8 Memory Array 524 288 x8 Cells Column Decoder Sense Amps I O DQ0 to DQ7 1 28 27 26 25 2 3 4 24 5 23 6 22 7 21 8 20 9 19 10 18 11 17 12 16 13 15 14 Vcc Vcc Vss Vss DQ0 DQ7 DQ6 DQ5 DQ4 DQ1 DQ2 DQ3 N C W R...

Page 29: ...rface Audio Interface Sync Generator Subpicture Decoder M P E G Video Decoder Dolby Digital Audio Decoder M P E G Audio Decoder Host Interface Control Logic Program Stream Decoder D R A M R O M Interface Host Interface DVD CD Interface Z Zi iV VA A D De ec co od de er r BLOCK DIAGRAM Digital Audio and IEC 958 Interface ...

Page 30: ...e Signals DA DATA 2 0 DA LRCK DA BCK DA XCK IEC958 MADDR 8 0 MROMA 8 0 M A D D R H 4 M A D D R H 1 MDATA 31 0 MDATA 47 32 MROMDATA 15 0 MDATA 60 48 MROMA 21 9 MDATA 63 61 M R A S 1 M R A S 0 MCAS 1 0 M W E M C E SYSCLK V D D V S S A_VSS A_VDD V D D 5 M A X R E S E T VDATA 7 0 H S Y N C V S Y N C V C K DVD DATA 0 CD DATA DVD DATA 1 CD LRCK DVD DATA 2 CD BCK DVD DATA 3 CD C2PO DVD DATA 4 DVD DATA 5 ...

Page 31: ...8 27 26 25 24 23 22 21 Vcc A17 A16 A15 A14 A13 A12 A11 A10 A9 Vss A8 A7 A6 A5 A4 A3 A2 A1 A0 TOP VIEW Output Enable Chip Enable and Prog Logic Output Buffers Y Gating 4 194 304 Bit Cell Matrix Y Decoder A0 A17 Address Inputs OE X Decoder Data Outputs DQ0 DQ15 Vcc Vss Vpp CE PCM BLOCK DIAGRAM FUNCTION Address Inputs Chip Enable Input Data External Connection No External Connection No internal Conne...

Page 32: ...r Data out Buffer Upper Data in Buffer Upper Data out Buffer Vcc Vss RAS UCAS LCAS W FUNCTION Address Inputs Data in Out Ground Row Address Strobe Upper Column Address Strobe Lower Column Address Strobe Read Write Input Data Output Enable Power 5V Power 3 3V No Connection PIN ASSIGNMENT Refresh Timer Refresh Control AO A8 Refresh Counter Row Address Buffer Col Address Buffer Row Decoder Column Dec...

Page 33: ...8x Interpolator 8x Interpolator Clock Divider De emphasis Control Modulator Modulator SCF SCF DZFL AOUTL AOUTR AOUTL AOUTR DZFR MCLK DVDD DVSS VREF CKS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 DVSS DVDD CKS MCLK PD BICK SDATA LRCK SMUTE DFS DEM0 DEM1 DZFL DZFR AVDD VREF AVSS AOUTL AOUTL AOUTR AOUTR DIF2 DIF1 DIF0 BLOCK DIAGRAM TOP VIEW ...

Page 34: ... input on this pin LRCK L R Clock pin SMUTE Soft Mute Pin When this pin goes H soft mute cycle is initiated I O I I I I I I When returning L the output mute releases 10 DFS Double speed sampling mode Pin Internal Pull down pin I L Normal Speed H Double Speed 11 DEM0 De emphasis Frequency Select Pin I 12 DEM1 De emphasis Frequency Select Pin I 13 DIF0 Digital Input Format Pin I 14 DIF1 Digital Inpu...

Page 35: ...R O U T IN IN IN P W R P W R FUNCTION No Connection System Clock input 256fs or 384fs Reserved for Factory Use Latch Enable for Serial Control Data Clock for Serial Control Data Data Input for Serial Control Reset Input When this pin is low the digital filters and modulators are held in reset Zero Data Flag This pin is low when the data is continuously zero for more than 65 535 cycles ro BCKIN Rig...

Page 36: ... N A P W R G N D G N D Out FUNCTION Master Clock Input System Clock Out This output is 256fs or 384fs system clock generated by the internal PLL PLL Power Supply 5V No Connection Buffered clock output of crystal oscillator Latch for serial control data Clock for serial control data Data for serial control Reset Input When this pin is low the digital filters and modulators are held in reset Zero Da...

Page 37: ...C Control I C Control Clock Timing RESN 40 42 41 35 34 7 8 43 37 4 25 28 31 36 SDA SCL XTALI XTAL RCV1 RCV2 TTXRQ XCLK LLC1 VDDA VDD I2C SA MP 7 0 TTX FADER ENCODER OUTPUT INTERFACE D A RGB PROCESSOR D 22 32 33 23 26 29 30 27 Y C Y 5 18 38 6 17 39 2 3 VSS VDD SP AP 19 RTC1 CbCr Y CbCr 24 R Cr VSSA G Y B Cb CVBS CSYNC VBS CVBS C CVBS A BLOCK DIAGRAM ...

Page 38: ... high selects slave address 8Ch Analog ground 1 for Red Cr C CVBS Green Y outputs Analog ground 3 for the DAC reference ladder and the oscillator Crystal oscillator output Crystal oscillator input if the oscillator is not used this pin should be connected to ground Analog output of Red Cr signal Analog output of Chrominance CVBS signal Analog supply voltage 1 for R Cr C CVBS outputs Analog output ...

Page 39: ...er and the oscillator Clock output of the crystal oscillator digital supply ground 3 digital supply 3 12C serial clock input 12C serial data input output Teletext Request output indicating when text bits are requested Teletext bit stream input Reset input active LOW After reset is applied all digital I Os are in input mode PAL Blackburst on CVBS VBS and C RGB outputs set to lowest voltage The 12C ...

Page 40: ...PLAY GRID 2 FLT DISPLAY GRID 3 FLT DISPLAY SEGMENT 0 5V 33V FLT DISPLAY SEGMENT 1 FLT DISPLAY SEGMENT 2 FLT DISPLAY SEGMENT 3 FLT DISPLAY SEGMENT 4 FLT DISPLAY SEGMENT 5 FLT DISPLAY SEGMENT 6 FLT DISPLAY SEGMENT 7 FLT DISPLAY SEGMENT 8 FLT DISPLAY SEGMENT 9 FLT DISPLAY SEGMENT 10 FLT DISPLAY SEGMENT 11 FLT DISPLAY SEGMENT 12 MUTE0 TEST1 RESET XT1 XT2 VSS CF1 CF2 VDD RRQ INT1 INT2 INT3 P52 PWM1 P20...

Page 41: ...O O O O O O O FLT DISPLAY SEGMENT 13 FLT DISPLAY SEGMENT 14 FLT DISPLAY SEGMENT 15 FLT DISPLAY SEGMENT 16 KEY INPUT 1 KEY INPUT 2 KEY INPUT 3 FRONT MICOM MAIN MICOM SEND REQUEST FRONT MICOM MAIN MICOM TRNS DATA FRONT MICOM MAIN MICOM RECEIVE DATA FRONT MICOM MAIN MICOM COMM CLOCK Function Key Scart Jack Audio Mute 2 Audio Mute1 POWER 5V FUNCTION PIN I O NAME PIN ASSIGNMENT FUNCTION PIN I O NAME RS...

Page 42: ...ency_adjust 1 FADJ2 Frequency_adjust 2 VCC Supply voltage input DGND Digital ground AGND Analog ground CC0 Current control 0 CC1 Current control 1 LPF2OUT Low pass filter 2 output LPF2IN Low pass filter 2 input OP2OUT It can be used as demodulated integrator by connected capacitor OP2IN It can be used as demodulated integrator by connected capacitor OP1IN It can be used as demodulated integrator b...

Page 43: ...6 32 Samsung Electronics MEMO ...

Page 44: ...mm 41 F 95 F 10 75 Reading Speed 3 49m sec Apporx Play Time Single Sided Single Layer Disc 135 minutes Reading Speed 1 2 1 4m sec Maximum Play Time 74minutes Reading Speed 1 2 1 4m sec Maximum Play Time 20minutes Reading Speed 1 2 1 4m sec Maximum Play Time 74minutes Video Audio 2 channel 1 0Vp p Y 1 0Vp p Pr 0 70Vp p Pb 0 70Vp p Luminance Signal 1Vp p 75Ω load Color Signal 0 286Vp p 75Ω load L 1 ...

Page 45: ...20 240V 50 60Hz 18W 4 1Kg W 420mm D 333mm H 80mm 5 F 35 F 10 75 Reading Speed 3 49m sec Apporx Play Time Single Sided Single Layer Disc 135 minutes Reading Speed 1 2 1 4m sec Maximum Play Time 74minutes Reading Speed 1 2 1 4m sec Maximum Play Time 20minutes Reading Speed 1 2 1 4m sec Maximum Play Time 74minutes Video Audio 1 0Vp p L 1 L R 2 R Analog 2Vrms 1KHz Digital 1 15Vp p Dynamic Range 100dB ...

Page 46: ...motion dur ing DVD VIDEO CD playback STOP Button REPEAT Button To repeat the entire disc or a desired title or track VOL CONTROL Button 907K only To control the sound volume of analog AC 3 output SEARCH Buttons To search through tracks easily and rapidly PLAY PAUSE Button Play Pause To start playback from the last stopped point on the disc SKIP Buttons To skip selections on discs 4 Operating Instr...

Page 47: ... to mute the TV sound temporarily VOLUME CONTROL Buttons CHAPTER Button To search chapters DISPLAY Button To search chapters ANGLE Selector To change the screen angle MENU Button To change audio subtitle angle etc TITLE Button DIRECTION Buttons When using the menus press these buttons when you want to move to desired position ENTER Button To play a selected title RETURN Button To return to a previ...

Page 48: ...s level The Parental Level Control function is compatible only with parental level encoded discs If you forget your password press the CLEAR button 3 times successively while in the ENTER PASSWORD 1111 is the original password that has been encrypted in the player by the manufacturer 6 Screen Ratios As DVD supplies the screen with a 16 9 ratio you can decide which type of screen you want to watch ...

Page 49: ...Samsung Electronics 4 4 4 3 CONNECTION 4 3 1 Basic Connection 1 Connecting to a TV Fig 4 3 2 Connecting to an Audio system Fig 4 4 T R L DVD 907K DVD 9901A T R L DVD 907K DVD 9901A ...

Page 50: ...EO IN R 2 AC 3 5 1 channel and Y Pr Pb Video connection Component signals Y Pr Pb are output from the Y Pr Pb jacks Fig 4 6 S VIDEO OUT DIGITAL AUDIOOUT OPTICAL DIGITAL AUDIOOUT ANALOG AUDIO OUT COMPONENT VIDEO OUT VIDEOOUT T Amplifier with 5 1 channel analog Input front speaker left center speaker Pr Pb Y TV or MONITOR with Y Pr Pb VIDEO in front speaker right sub woofer for supporting bass sound...

Page 51: ...annel analog Input front speaker left center speaker TV or MONITOR with Y Pr Pb VIDEO in front speaker right sub woofer for supporting bass sound rear speaker left rear speaker right Operating Instructions Samsung Electronics 4 6 4 Stereo amplifier and S Video connection 2 channel Normal stereo amplifier connection 2 channel Fig 4 8 T R L DVD 907K DVD 9901A speaker right Stereo amplifier speaker l...

Page 52: ...er speaker 6 AC 3 decoder amplifier digital connection Either the Optical Digital Audio Out or the coaxial Digital Audio Out should be connected to the AC 3 decoder amplifier The Optical Digital Audio Out and Digital Audio Out both output the same signal Fig 4 10 DVD 907K DVD 9901A DVD 807K 808K S VIDEO OUT DIGITAL AUDIOOUT OPTICAL DIGITAL AUDIOOUT ANALOG AUDIO OUT COMPONENT VIDEO OUT VIDEOOUT T A...

Page 53: ...Operating Instructions 4 8 Samsung Electronics MEMO ...

Page 54: ...mbly 1 Supply power and open Tray 2 Disassemble the door tray in direction of arrow 3 Close Tray and power off Note If Tray doesn t open insert a clip into the hole as shown in detailed drawing and open Tray manually 5 1 1 Door tray 1 2 1 1 3 1 Fig 5 1 1 TRAY 2 DOOR TRAY 3 CLIP 70mm ...

Page 55: ...5 2 Samsung Electronics 5 1 2 Top cabinet 1 Remove 3 screws on the back panel 2 Remove 4 screws on the left and right side 3 Lift up the top cabinet in direction of arrow Fig 5 2 1 2 3 2 CABINET TOP 2 SCREWS 1 3 SCREWS 3 2 SCREWS ...

Page 56: ...ttom of cover panel ass y and disassemble the front 3 Remove 2 screws from PCB front 4 Remove 9 hooks to fix PCB front and disassemble PCB front 5 Remove 2 screws on the top of cover panel ass y 6 Remove 4 top hooks and 5 bottom hooks and disassemble the cover panel ass y Fig 5 3 1 3 4 5 6 7 2 5 1 3 1 2 SCREWS 2 SCREWS 4 2 SCREWS 1 SCREW 1 SCREW PCB FRONT ASSY PANEL FRONT ...

Page 57: ... Remove 2 Holder PCB inserted in PCB MAIN and lift up PCB MAIN 3 Remove 3 screws from PCB SMPS 4 Remove 3 Spacer PCB inserted in PCB SMPS and lift up PCB SMPS 5 Remove 2 screws to fix BRKT PCB ass y Fig 5 4 1 2 3 4 5 1 4 SCREWS 3 4 SCREWS 4 SPACRE PCB 5 2 SCREWS ASSY BRKT PCB PCB SMPS ASS Y BOTTOM 2 HOLDER PCB ...

Page 58: ...ssembly Samsung Electronics 5 5 5 1 5 Deck Frame chassis 1 Remove 4 screws from the deck and lift it up 2 Remove 4 screws from the frame chassis and lift it up Fig 5 5 1 2 1 4 SCREWS 2 1 SCREW DECK CHASSIS FRAME 3 2 HOOKS ...

Page 59: ...5 6 Samsung Electronics PCB MAIN PCB SMPS PCB KARAOKE PCB FRONT Fig 5 6 5 2 PCB Locations ...

Page 60: ...OKE PCB SMPS PCB MAIN No Connector wafer No Direction Connector wafer No 1 FJP1 CT1 PCB MAIN DCN1 2 DCN1 PCB FRONT FJP1 3 CN5 CT2 PCB MAIN CN1 4 CN1 DECK CN5 5 PCN02 CT3 PCB MAIN PCN1 6 PCN1 PCB SMPS PCN02 7 KCN1 CT4 PCB MAIN KCN1 8 KCN1 PCB KARAOKE KCN1 5 3 Connector Connection ...

Page 61: ...cy hole and push Gear Cam Center When the tray comes out a little pull it in direction of arrow C 3 Pull the tray to disassemble while simultaneously pushing the hook in direction of arrow A B Fig 5 8 A C B HOOK EMERGENCY HOLE CLIP 3 3 GEAR CAM CENTER TRAY HOOK 1 1 2 SCREWS ASS Y DECK CLAMPER 2 2 5 5 6 6 3 3 4 4 1 2 3 4 4 5 6 1 2 5 4 3 6 ...

Page 62: ...Deck DVD 1 Remove 2 screws and disassemble the ass y PCB deck 2 Disassemble the ass y deck DVD in direction of arrow B while simultaneously pushing the hook in direction of arrow A Fig 5 9 B A ASS Y DECK DVD 3 3 HOOK ASS Y PCB DECK 2 SCREWS 1 1 2 2 3 3 4 4 1 2 4 3 ...

Page 63: ...yncro in both directions Assembling Adjust the shaft end of motor feed so that it is exactly equal to the height of the hump in gear pole of ass y gear magnet Fig 5 10 GEAR CAM CENTER 1 SCREW GEAR CAM SUB 1 1 GEAR TRY GEAR TRY A BELT PULLEY 1 SCREW PULLEY GEAR 2 SCREWS LEVER OPEN S W 1 SCREW MOTOR PULLEYASSEMBLING ADJUST THE END OF MOTOR SHAFT SAMELYAS HEIGHT OF PULLEYATASSEMBLY ASS Y MOTOR LOAD G...

Page 64: ...Disassembly and Reassembly Samsung Electronics 5 11 5 4 4 Ass y deck 1 Remove 4 screws 2 Lift up the ass y deck Fig 5 11 4 SCREWS ASS Y DECK 1 1 2 2 2 1 ...

Page 65: ...d CU CL 7 Disassemble the ass y gear magnet 8 Remove 2 screws and disassemble the ass y PCB hall sensor 9 Remove 1 screw and disassemble the motor feed Assembling Adjsut the shaft end of motor feed so that it is exactly equal to the height of the hump in gear pole of ass y gear magnet Fig 5 12 1 7 2 5 6 4 8 10 12 14 11 9 13 15 16 16 18 19 1 17 3 1 3SCREWS 8 3SCREWS 3 SHAFT P U L 5 ASS Y PICK UPL 6...

Page 66: ...mmon power to transformer Vp Fig 7 2 The output Vs of transformer is determined by the ratio of 1st Np and 2st Ns Vs Ns Np x Vp Fig 7 3 Vout is output DC by diode and condensor Fig 7 4 7 Circuit Descriptions 7 1 SMPS Vreg Vout Vs Ns Vp Np Regulator Common power Ex 220V60Hz Vs t 0 Vs t 0 Vout t 0 3 Waveform Description 20µs 220 2V ...

Page 67: ...aused by margin design Greater core size and condensor capacity are needed because the transformer works on a single power frequency Fig 7 5 7 1 1 B SMPS PULSE WIDTH MODULATION METHOD Fig 7 6 SMPS 3 Terms 1st Common power input to 1st winding 2nd Circuit followings output winding of transformer f Frequency Switching frequency T Switching cycle Duty Ton T x 100 V Vreg Vout 0 t Change by common powe...

Page 68: ...e at the terminals of switch during switch off Suppress noise High inverted power occurs at switch PIC1 off because of the 1st winding of transformer V L1xdi dt LI Leakage Induction A very high residual voltage exists on both terminals of PIC1 because dt is a very short SNUBBER circuit protects PIC1 from damage through leakage voltage suppression by RC Charges the leakage voltage to PD11 and PC04 ...

Page 69: ...ecreases and Vout decreases below 5 8V then PIC3 P potential down below 2 5V PIC3 A K of base current down PIC3 of A K current down PIC2 Diode current down PIC2 C E current down PIC2 C E voltage up PIC1 F B voltage up Out Duty up Transformer 1st current up Transformer 1st power up Vout up Maintain Vout 5 8V c If load of 5 8 V terminal decreases or AC input voltage rises and Vout rises above 5 8V t...

Page 70: ... B Reset 7 5V 5v Reset Thermal Proction O V P 2uA 6 3V Sync 2 5R Voffset Rsense R _ _ 1 m A Noise removal SNUBBER Smoothing circuit Rectified circuit Line filter Power IN 85 265V FLT driving circuit 5V rectified smoothing circuit 3 3V rectified smoothing circuit Converter PWM control cir cuit 1L0380 Voltage detection circuit 8V rectified smoothing circuit 8V rectified smoothing circuit 5V rectifie...

Page 71: ...l A B C D via RF summing AMP RF signal is inputted to RFN pin55 among input terminals and RFP pin54 is used for AC ground Fig 7 11 Fig 7 12 shows the waveform equalizing block diagram for the RF signal It outputs to EQout pin 46 terminal by initially changing switching AMP gain of DVD and CD and then adjusting the level in VCA It controls VCA gain by means of RF gain pin 48 and interfaces with PWM...

Page 72: ...uency characteristic 2 CD EQ control parameter CD EQ pin 40 Changes the gain of peak frequency with EQ frequency characteristic The constant DC is supplied to a resistive voltage divider CD TIME pin 42 Changes the peak frequency with EQ frequency characteristic The constant DC is supplied to a resistive voltage divider S Qse1 pin 44 Changes the peak frequency such as CD TIME as 2d control Switched...

Page 73: ... MIC4 74AC573 to latch only address in the bus where address and data are mixed address decoder MIC6 74HC00 for selection of external device chip and 20MHz clock oscillator for micom operation The micom MIC1 TMP93CS41 mounted in main board analizes the key commands of front panel or instructions of remote control through communication with micom FIC1 LC86P6232 of front and controls the devices on ...

Page 74: ... 1723 AIC1 VIDEO ENCODER SAA7128 MIC4 74AC573 LOW ADDRESS HIGH ADDRESS DATA BUS MIC1 MAIN MICOM TMP93CS41F FIC1 FRONT MICOM LC86P6232 MIC6 ADDRESS DECODER MICOM BLOCK MIC5 EPROM IS24C02 MIC2 EPROM AM27C020 MIC3 SRAM KM681000 BIC1 A V DECORDER ZiVA D6 L DIC1 DVD PROCESSOR TC90A19F SIC7 CD PROCESSOR TC9420F ...

Page 75: ... of MIC4 Common bus data Fig 7 14 The inclining and rising part indicate floating range of data bus That is there is no operational problem because micom is time area not to access any devices sharing a common bus The waveform is shown to incline and rise by pull up resistance and capacitance on PCB pattern When micom accesses each device sharing bus it falls the chip select signal of correspondin...

Page 76: ...ELECT CH5 WR MIC1 73 MICOM OUTPUT WRITE SIGNAL CH6 RD MIC1 72 MICOM OUTPUT READ SIGNAL Fig 7 17 CH1 CS1 MIC3 22 SRAM CHIP SELECT CH2 CS2 MIC2 22 EPROM CHIP SELECT CH3 DPCS DIC1 12 DVD PROCESSOR CHIP SELECT CH4 DVDCS BIC1 175 A V DECODER CHIP SELECT CH5 WR MIC1 73 MICOM OUTPUT WRITE SIGNAL CH6 RD MIC1 72 MICOM OUTPUT READ SIGNAL CS1 CS2 DPCS WR DVDCS RD CS1 CS2 DPCS WR DVDCS RD CS1 CS2 DPCS WR DVDC...

Page 77: ...se Write rate to memory after disc playback and signal process is faster than Read rate of MPEG decoder When the memory is filled this sta tus is reported by interrupt to main micom which controls the servo to kick back the pick up to the previous track after memorizing the last data read from disc until now It takes some times to jump to the previous track and return to the original position jump...

Page 78: ...DIC2 4M DRAM RF Signal LPF VCO 5 TC90A19F DIC1 SD SENB PDON PDOP RFIN RLLD PLCK SERR SDCK SREQ RST 55 56 MD MA RASN CASN MOEN MWEN MD MA DPCK SVCK RASN CASN MOEN MWEN 57 58 12 10 11 23 50 36 37 38 26 3 93 91 94 96 97 SENB SERR SDCK SREQ MRST 27MHz 151 148 147 ADDRESS DECODER RESET HADRS HAD WR RD DPINT 74HC00 MIC6 TMP93CS41F MIC1 MICOM DACK ERR CSTROBE REQUEST HCEN HA HD HDWT HDRD HINT Fig 7 18 ...

Page 79: ...put swings in approx 2V of amplitude and the output swings in 3 3V CH1 SVCKI DIC1 5 CH2 SVCKO DIC1 6 Fig 7 20 CH1 is RF signal waveform inputted to DIC1 and inputted with 2 5V of amplitude on the basis of approx 1 65V level If RF signal is higher than slice level CH2 of slice level is cut logic 1 HIGH and if lower logic 0 LOW thus converted into digital data CH3 indicates a waveform that RF signal...

Page 80: ...n DIC1 when RF signal is inputted The phase difference signals is inputted into VCO after summing in external PLL circuit of DIC1 VCO changes PLL clock frequency according to input voltage The middle frequency of external PLL circuit is approx 27MHz and a clock DIC1 26 locked by PLL on the basis of 27MHz may be shown at DVD playback CH1 RFIN DIC1 50 RF Input signal CH2 SLCO DIC1 34 Sliced data CH3...

Page 81: ... and RLLD signal waveform at DVD refresh and RLLD waveform is regular as 1 65V If a serious error occurs in disc RLLD signal is outputted as correction signal and enters PLL control system after summing with phase difference signal CH1 RFIN DIC1 50 RF Input signal CH2 RLLD DIC1 38 RLLD signal at disk refresh Fig 7 26 RLLD signal is ouputted at disc halt or occurrence of serious error CH1 RFIN DIC1...

Page 82: ...amount As the control voltage of VCO is higher PLL clock frequency becomes high CH1 RFIN DIC1 50 RF Input signal at disc playback CH2 VCO control signal DD1 3 Variable capacitance diode Fig 7 29 After the error correcting process of input RF signal in DIC1 it makes the acknowlegde signal of CH2 LOW and out puts data CH4 when MPEG decoder Video Audio signal process chip falls the request signal to ...

Page 83: ...ed bus CH3 HA0 7 MIC4 19 to 12 Main micom addreess 0 7 Fig 7 31 It shows access in fast page mode as waveform when DIC1 accesses external memory 4Mbit DRAM at DVD refresh WE Write enable DIC2 7 OE OUTPUT ENABLE DIC2 22 RAS RAW ADDRESS STROBE DIC2 8 CAS COLUMN ADDRESS STROBE DIC2 23 ADRS ADDRESS DATA DATA Fig 7 32 It shows the external memory refresh of DIC1 and uses CAS Before RAS Refresh DIC2 4MD...

Page 84: ...address bus CH6 HAD DIC1 13 20 Micom data bus Fig 7 36 It shows a waveform that DIC1 requests a management to micom by interrupt generation Micom recognizes the interrupt and writes a value in register of DIC1 to respond instruction for interrupt Micom accesses DIC1 five times in Figure Micom recognizes the operation of chip and makes a necessary instruction after receiving the interrupt generated...

Page 85: ...ted via low pass filter amplifier and buffer unit of rear unit analog part Output signals are Y Cr Cb or RGB Y C composite video and because the processig course of each signal is same the explanation is made on the basis of composite video signal A V decoder ZiVA D6 L BIC1 Low pass filter Main micom TMP93CS41F MIC1 PAL NTSC digital encoder SAA7128 VIC1 Buffer Video data JACK External output Ampli...

Page 86: ...tion and addition are made for copy guard processing and obstruct the normal signal copy The composite signal is formed by adding of luminance and chrominance signal among them and Y Cr Cb signal is encoded to RGB by control of micom RGB output is for the SCART output in Europe The above signals that is Y Cr Cb or RGB Y C composite video signals are outputted from VIC1 through D A con verter Demul...

Page 87: ... and the gain is 1 VR11 VR10 VR12 is the main factor that determines the offset of output signal of amplifier unit and the rate is approx VR 12 VR10 VR11 Fig 7 41 Amplifier 7 6 5 Buffer VQ4 VQ5 and VQ6 are buffer unit and circuit that double the drive power so as to output without signal conver sion when connected with exterior devices VC11 is an AC coupling capacitor VR19 is an essential impedian...

Page 88: ...tance between object lens of Pick up and disc for surface vibration of disc 2 Tracking SERVO Make the object lens follow the disc track in use of tracking error signal created from Pick up 3 SLED Linked SERVO When the tracking actuator inclines outwardly as the object lens follows the track during play the SLED motor moves slightly and counteracts the incline 4 CLV SERVO DISC Motor Control SERVO C...

Page 89: ...D M T HALL PCB LD PD SPINDLE M T CN1 HA1 HA1 HA2 HA2 SLED SLED AO DO CO BO FO EO PD LD F T T F SPINDLE FOCUSING TRACKING SIC2 SSC9502D RIC1 TA1236F MIC1 TMP 93CS41F SIC7 TA942ØF DIC1 TA90A19F SIC4 BA5924 SIC5 BA6840 RIC2 TA1253F 12 2 1 23 22 17 18 12 11 2 7 23 22 7 34 34 55 12 51 52 1 ...

Page 90: ...loses the loop during focus servo on both pin 43 and pin 48 of SIC7 are controlled by VREF volt age approx 2 1V and pin 1 2 of SIC4 are approximately 4 5V 2 TRACKING SERVO 1 NORMAL PLAY MODE 1 For DVD Composite The signal output from PD A B C D of Pick up the tracking error signal RIC2 pin 14 uses the phase difference of A C and B D in RIC2 and inputs to terminal 8 of RIC1 The signal is output to ...

Page 91: ...ormal play mode Move SLED motor slightly by means of PWM signal in SIC7 pin 54 as the tracking actuator moves along with track during play Control to move the entire Pick up as the tracking actuator moves Coarse serach mode In case of long distance search such as chapter serach pin 48 uses sled FG SIC2 pin 19 which is generated by rotation of sled motor via hall PCB Then read ID and compute the ex...

Page 92: ...re outputted with only 2 outputs L R channel If DVD of 2 channels is used rear L R channel center channel and subwooder channel are mixed and outputted in 2 channels The digital signals IEC 958 Output outputted from A V decoder BIC1 ZiVA D6 L are outputted to digital amp or AC 3 amp through optical jack AJ4 907K only and RCA jack AJ3 Mike s voice input goes through the Echo Sound Processor Then th...

Page 93: ... are ouputted by analog signal of D A converter of AIC2 PCM1720E and to rear L R via HPF after filtering DATA2 data are converted into analog signal by D A converter of AIC3 PCM1723E and one channel is outputted by center output via post filter and HPF The other channel of AIC3 PCM1723E is outputted by subwoofer signal through amplifier of 5 0dB and LPF 7 7 2 b Bass redirection 2 Channel down mixi...

Page 94: ...d if mikes have not been inserted the 5th pin of each of MIC1 and MIC2 and KQ3 base will trig ger H bringing on the mute function on the Karaoke Board Hence it can preserve the quality of the main board as usual 7 7 3 CD VCD audio output The audio of CD and VIDEO CD bypasses the signals of SIC7 TC9420F in BIC8 9 and BIC1 A V decoder and outputs them to DATA0 Also they are outputted in stereo 2 cha...

Page 95: ...Circuit Descriptions 7 30 Samsung Electronics MEMO ...

Page 96: ...occurs at SIC2 18 terminal SLEDGS terminal is L During search term Replace uCOM program MIC2 Check SIC2 peripheral circuit 1 5Vpp sine wave occurs at search at SIC2 3 21 terminal Replace Hall PCB Check SIC2 peripheral circuit Check SLEDGS terminal of uCOM Check peripheral circuit No No No No Yes Yes Yes Yes Yes No 8 Troubleshooting 8 1 SERVO Thoubles A ...

Page 97: ...nal is changed from L to H track input is OK within several ms FINE SEEK RFRF signal is missing RFCT follows center level of RFRF Track incoming is delayed FINE SEEK check Check RIC1 peripheral circuit Check PR11 peripheral circuit Time Out due to many jump counts Check SIC2 peripheral soldering Yes Yes No No No A C B ...

Page 98: ...ick up For CD check RR34 RR36A peripheral circuit For DVD check RR45 peripheral circuit Check SIC4 peripheral circuit SLED linked loop check SIC7 53 FMO occurs SIC4 14 ouput is normal SIC4 17 18 terminal outputs are normal Pick up transfer is smooth Check SIC4 soldering and power Check SQ1 peripheral circuit and SLEDGS terminal Check SIC7 53 peripheral circuit SLEDGS terminal is L Yes B ...

Page 99: ...heck SIC6 soldering and power Check SIC5 soldering and power or Replace SIC5 Check RIC1 soldering and power Check RIC3 peripheral circuit and A B C D Input of RF signal is normal For CD SIC7 38 terminal For DVD DIC1 Pin 50 DMO output is normal For CD SIC7 55 terminal For DVD DIC1 Pin 54 SIC6 Pin 1 output is normal SIC5 Pin22 signal is normal Check or replace disc motor After resoldering SIC7 DIC1 ...

Page 100: ...No Yes Yes No tray open close MIC1 Pin84 85 is OPEN L L CLOSE H H Check SIC4 Pin26 27 ouput at open close Signal is reverse output based on SR24 25 Check signal line state from SIC4 Pin26 27 to tray motor Check SR24 25 peripheral circuit Micom error ...

Page 101: ...Troubleshooting 8 6 Samsung Electronics No Yes No disc recognition LD is outputted from object lens at play key input No disc focus incoming and no disc occurs D C ...

Page 102: ...ung Electronics 8 7 Yes No No Yes No focus incoming Check SIC4 Check RR26 RR26A RR28 value and A B C D input Check open state from SIC4 to Pick up FES in SIC7 43 TP39 is within specified range SIC4 1 2 outputs are normal C ...

Page 103: ...oting 8 8 Samsung Electronics No PICK UP Home positioning Micom error Check SIC2 SIC9 signal transfer system MIC1 8 Output is normal SELED FG MIC1 9 is input normally Check SIC4 soldering and power Yes Yes No No ...

Page 104: ...1 50 output is 180mV Current exceeds 0 1A Divide RQ1 emitter terminal voltage and 5V real voltage difference into 12Ω LD out Pick up replace Open check in related circuit LD MPD error Replace Pick up Check MIC1 6 RIC1 50 output is 0V Yes Yes Yes Yes Yes No No No No D ...

Page 105: ...ignal is high at PIN40 in VIC1 Control signal input is normal at PIN41 42 in VIC1 SYNC output is normal at PIN7 8 in VIC1 Input data is normal at PIN9 16 in VIC1 Check DL7 connection No Check MIC1 No Check signal connection between MIC1 No Check every pin connection of VIC1 No Check BIC1 connection 8 2 VIDEO TROUBLE E ...

Page 106: ...ut port in VF1 Video signal of about 2V appears at collector in VQ3 Video signal of about 2V appears at collector in VQ6 Video Signal of about 1V appears at output pin in VJ1 Check power pin connection in VIC1 No Check VF1 connection No Check every device connection in Amplifier stage No Check every device connection in buffer unit No Check VC11 VR19 VL11 connection E ...

Page 107: ...AIC4 6 peripheral circui Check AIC5 7 peripheral circuit Check DCN1 pin14 mute Check AL9 10 11 12 peripheral soldering and short CD VCD DVD front L R output error Normal DATA0 is input in AIC1 pin15 Analog output pin9 12 of AIC1 is normal AIC4 6 pin1 output is normal AIC5 7 pin1 input is normal Base terminal level of AQ5 6 9 10 are L ...

Page 108: ...0 peripheral circuit Check AIC8 10 peripheral circuit Check AIC11peripheral circuit Check DCN1 pin19 mute Normal DATA1 is input in AIC2 pin15 Analog output pin 9 12 of AIC2 is normal AIC8 10 pin1 output is normal AIC8 10 pin7 pin output is normal AIC11 pin1 7 output is normal Base terminal level of AQ55 57 75 77are L Check AL13 14 peripheral soldering and short No Yes Yes Yes Yes Yes Yes Yes No No...

Page 109: ...s normal AIC13 pin1 output is normal Base ferminal level of AQ21 22 are L No Yes Yes Yes Yes Yes Yes No No No No No Outputted only in 2 channel stereo channel Check BIC1 pin128 ouput Check AIC3 pin2 18 432MHz Check AIC12 peripheral circuit Check AIC13 peripheral circuit Check AL15 peripheral soldering and short DVD center output error Check DCN1 pin26 peripheral circuit ...

Page 110: ... AIC3 pin2 18 432MHz Check AIC14 peripheral circuit F Check AIC13 peripheral circuit Check DCN1 pin26 mute Normal DATA2 is input in AIC3 Analog output pin11 of AIC3 is normal AIC14 pin1 output is normal AIC13 pin6 input is normal AIC13 pin7 output is normal Base terminal level of AQ25 26 are L Check AL16 peripheral soldering and short No Yes Yes Yes Yes Yes Yes Yes No No No No No No ...

Page 111: ...cs AIC17 pin14 15 input is normal Check AIC8 10 12 16 peripheral circuit Check MIC1 pin89 output L Replace AIC17 14053 AIC17 pin10 11 level are L AIC17 pin2 output is normal Check AIC17 peripheral soldering and short No Yes Yes Yes No No F ...

Page 112: ... Troubleshooting Samsung Electronics 8 17 DIGITAL output error Check BIC11 IC Check BIC1 peripheral circuit Check AJ3 4 peripherial solder ing and SHORT Output in BIC11 PIN4 is normal Output in BIC1 PIN129 is normal ...

Page 113: ...re Does KCN 6 turn into H upon inserting a microphone Is the frequency of KCN2 3 415kHz 506kHz Check periperal circuits of MIC1 MIC2 and KCN1 Replace KIC2 Check insutticient solders or incorrect insertions on the Karaoke board in its entirety Yes Yes No No ...

Page 114: ...wer Standby LED OFF PF01 Error PD01 voltage is missing PIC1 Drain Pin2 voltage is missing Voltage exists in PIC1 Pin3 Pulse is missing in PIC1 5 Yes Yes Yes Yes Yes No No No No No Replace fuse Check PR10 Check 2d voltage Check PR11 12 13 14 Replace PIC1 Check feed back ...

Page 115: ...unication status with main Micom Check FIC1 pins 27 72 73 74 75 If the problem persists Check after replacing Front PCB with another one Check other parts for abnormal Front operation persists 12MHz oscillation FY1 Reset working in FIC1 Micom 12pin FIC1 Micom soldering is OK Operational waveform is missing in FIC3 FLT pin Keys of STOP PLAY OPEN work normally No No No No No No Yes Yes Yes Yes Yes Y...

Page 116: ...heck 27MHz oscillating part Check MIC2 peripheral soldering CH1 ALE CH2 HAD0 7 CH3 HA0 7 Replace DIC1 33MHz clock is input in DIC1 pin3 27MHz clock is input in DIC1 pin5 WaveformsofMIC213 15 17 21pin are measuredinall8bits likeCH2andCS2 MIC2 22pin WR MIC3 29pin RD MIC2 24pin signalsswing Signals are output from DIC1 36 37 38 pin ZIVA D6 L peripheral solder ing and short check 1 2 3 Troubleshooting...

Page 117: ... micom Check soldering of micom and communication devices Check ZIVA D6 L peripheral unit All power is measured correctly and front cable is properly connected All clocks 20MHz 16 9344MHz 27MHz 30MHz 33MHz of main PCB oscillate normally Common data bus line signal appears like CH2 of wave form CS2 RD WR signals occur Play Works Troubleshooting 8 22 Samsung Electronics CH1 ALE CH2 HAD0 7 CH3 HAD0 7...

Page 118: ...to 0V Check A V decoder signal process block Chekl DVD signal process block Check MIC1 peripheral soldering Including 12MHz oscillationg of front micom MIC6 9 10 pin is fixed to 0V Check with Article No Frout SET Operation MIC1 pin4 waveform state 0 1 changes whenever pressing front key G ...

Page 119: ...Troubleshooting 8 24 Samsung Electronics MEMO ...

Page 120: ...Samsung Electronics 9 1 9 Exploded Views and Parts List 9 1 Exploded View 9 2 Deck Exploded View 9 3 Remote Control ...

Page 121: ...9 2 Samsung Electronics 9 1 Exploded View 26 ASSY PCB FRONT 34 ASSY PCB KARAOKE S N A PCB MAIN S N A CABINET TOP S N A MECHA 18 PCB POWER S N A CHASSIS REAR S N A Service Not Available ...

Page 122: ...0P 1 25MM UL28 22 6003 000276 SCREW TAPTITE BH B M3 L10 ZPC YEL SWC 23 6003 000275 SCREW TAPTITE BH B M3 L10 BLK SWCH101 24 6003 000277 SCREW TAPTITE BH B M3 L12 ZPC YEL SWR 25 6003 000256 SCREW TAPTITE BHW B M3 L10 ZPC YEL SM 26 AH90 10750V ASSY PCB FRONT DVD 907K XTI 28 AH63 40163B GROUND REAR PBS T0 2 DVD 907 29 AH63 30228B COVER REAR PC ABS HB T2 BLK DVD905 30 Refer to Table Below INLAY REAR P...

Page 123: ...9 2 Deck Exploded View 228 227 903 903 225 225 903 225 909 906 221 223 217 216 222 220 218 201 210 212 213 209 908 208 206 229 230 230 205 203 202 902 207 904 901 211 219 905 909 901 907 904 220 215 220 204 224 226 214 231 903 ...

Page 124: ...60134A ASSY MOTOR SPINDLE DP 2 SDR 130 220 AH60 30020A WASHER PLAIN DP ID3 1 OD6 T0 3 RED COLOR 221 AH91 60120A ASSY GEAR FEED AU AL DP 1 DVD 860 222 AH66 20182A GEAR FEED B DP KEPITAL F20 03 M0 4 Z44 WHT 223 AH91 60121A ASSY GEAR FEED CU CL DP 1 DVD 860 224 AH91 60122A ASSY GEAR MAGNET DP 1 DVD 860 225 AH73 10017A RUBBER INSULATOR RUBBER LB 40 OD11 DP 1 226 AH90 10694A ASSY PCB HALL SENSOR SDR 13...

Page 125: ... 3 Remote Control AH59 10087H REMOCON ASSY DVD 907 XTI S S DVD 907K AH59 10087R REMOCON ASSY DVD 907 WYN DVD 9901A DVD 907KS AH59 10087K REMOCON ASSY DVD 807K DVD 808K 807K AH64 50327A DOOR BATTERY ABS94 HB T2 L71 W60 H18 D GR ...

Page 126: ...Samsung Electronics 10 1 10 Packing Diagram 6 ACCESSORY ASS Y 2 CUSHION LEFT 1 NITRON BAG SET 5 REMOCON ASS Y FRONT FRONT 4 PACKING CASE 3 CUSHION RIGHT ...

Page 127: ...Samsung Electronics 10 2 Packing Diagram MEMO ...

Page 128: ... AL 22uF 20 16V GP TP 5x11mm 2 5m AC51 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP AC52 2401 000414 C AL 10uF 20 16V GP TP 4x7 5 AC53 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP AC54 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP AC55 2401 000414 C AL 10uF 20 16V GP TP 4x7 5 AC56 2203 005105 C CERAMIC CHIP 680pF 5 50V CH TP 1608 1 AC57 2203 000315 C CERAMIC CHIP 120pF 5 50V NPO TP 1...

Page 129: ... 1 16W DA TP 1608 AR105 2007 000086 R CHIP 5 6Kohm 5 1 16W DA TP 1608 AR106 2007 000086 R CHIP 5 6Kohm 5 1 16W DA TP 1608 AR107 2007 000086 R CHIP 5 6Kohm 5 1 16W DA TP 1608 AR108 2007 000093 R CHIP 20Kohm 5 1 16W DA TP 1608 AR109 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 AR11 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 AR110 2007 000102 R CHIP 100Kohm 5 1 16W DA TP 1608 AR111 2007 001056 R CHIP...

Page 130: ... CHIP 100ohm 5 1 16W DA TP 1608 AR95 2007 000075 R CHIP 220ohm 5 1 16W DA TP 1608 AR96 2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 AR97 2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 AR98 2007 000075 R CHIP 220ohm 5 1 16W DA TP 1608 AR99 2007 000102 R CHIP 100Kohm 5 1 16W DA TP 1608 BC1 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP BC10 2401 002008 C AL 100uF 20 16V GP TP 6 3x11 2 5 BC11 2203 000...

Page 131: ...189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP DC29 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP DC3 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP DC30 2203 000491 C CERAMIC CHIP 2 2nF 10 50V X7R TP 1608 DC31 2203 000783 C CERAMIC CHIP 330pF 5 50V NPO TP 1608 DC32 2203 000783 C CERAMIC CHIP 330pF 5 50V NPO TP 1608 DC33 2203 001634 C CERAMIC CHIP 33nF 10 50V X7R TP 1608 DC34 2203 000315 C CERAM...

Page 132: ...MC17 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC2 2203 000426 C CERAMIC CHIP 18pF 5 50V NPO 1608 TP MC20 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC21 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC22 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC23 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC3 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP MC4 2203 000189 C...

Page 133: ...0nF 80 20 25V Y5V TP RC6 2203 002398 C CERAMIC CHIP 22nF 10 50V X7R TP 1608 RC7 2401 002036 C AL 1uF 20 50V GP TP 5x11 2 5mm RC8 2401 002144 C AL 47uF 20 16V GP TP 5x11 5 RC8A 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP RC9 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP RC9A 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP RCA3 3722 001145 JACK RCA 6P 2C 3 2mm AU G W R NO RCA8S 3722 0011...

Page 134: ...8P 150MIL DUAL 100V M SIC2 BG13 10030A IC ASIC KA9250D STF SOP 24P HALL CONTR SIC4 1003 001083 IC MOTOR DRIVER BA5924FP SOP 28P 767MIL SIC4A AH62 30125A HEAT SINK IC CU T0 3 YEL DVD 905 SIC5 1003 001044 IC MOTOR DRIVER BA6840BFP SOP 28P 292MIL SIC6 1201 000163 IC OP AMP 4560 SOP 8P 150MIL DUAL 100V M SIC7 AH13 10030G IC ASIC TC9420F QFP 100P DIGITAL SER SIC8 1201 000163 IC OP AMP 4560 SOP 8P 150MI...

Page 135: ...F 80 20 25V Y5V TP VC7 2401 002008 C AL 100uF 20 16V GP TP 6 3x11 2 5 VC8 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP VC9 2401 002008 C AL 100uF 20 16V GP TP 6 3x11 2 5 VF1 2909 001022 FILTER LC 0 7 5MHZ 4 5DB TP 1 5 4 5DB VF2 2909 001022 FILTER LC 0 7 5MHZ 4 5DB TP 1 5 4 5DB VIC1 1204 001366 IC VIDEO ENCODER SAA7128 QFP 44P PLAST VJ1 3722 001284 JACK RCA 5P 6P 3 2mm AU BLK VJ2 3722 001133 J...

Page 136: ...2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 VR42 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 VR43 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 VR44 2007 000123 R CHIP 1 5Kohm 5 1 16W DA TP 1608 VR45 2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 VR46 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 VR47 2007 000539 R CHIP 200ohm 5 1 16W DA TP 1608 VR48 2007 000539 R CHIP 200ohm 5 1 16W DA TP 1608 VR49 2...

Page 137: ...AL1 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm AL10 2901 001025 FILTER EMI SMD 25V 200MA 3 2X1 6X1 8 AL2 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm AL3 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm AL4 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm AL8 2901 001025 FILTER EMI SMD 25V 200MA 3 2X1 6X1 8 AL9 2901 001025 FILTER EMI SMD 25V 200MA 3 2X1 6X1 8 AQ1 0501 000341 TR SMALL SIGNAL ...

Page 138: ...ERTER SSOP 5P 63 BIC11 0801 002097 IC CMOS LOGIC 7SET08 AND GATE SOP 5P 110 BIC12 0801 002096 IC CMOS LOGIC 7SH08 AND GATE SSOP 5P 63M BIC2 1102 001042 IC EPROM 27C4096 256Kx16BIT DIP 40P 600 BIC2A 3704 000272 SOCKET IC 40P DIP SN 2 54mm BIC3 1105 001233 IC DRAM 416C256 256KX16BIT SOJ 40P 400MI BIC4 1105 001233 IC DRAM 416C256 256KX16BIT SOJ 40P 400MI BIC5 1105 001233 IC DRAM 416C256 256KX16BIT SO...

Page 139: ...DA TP 1608 DR16 2007 000077 R CHIP 470ohm 5 1 16W DA TP 1608 DR17 2007 007445 R CHIP 9 1Kohm 5 1 16W DA TP 1608 DR18 2007 000082 R CHIP 3 3Kohm 5 1 16W DA TP 1608 DR19 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 DR2 2007 000072 R CHIP 47ohm 5 1 16W DA TP 1608 DR20 2007 000081 R CHIP 2 7Kohm 5 1 16W DA TP 1608 DR21 2007 000127 R CHIP 9 1Kohm 5 1 16W DA TP 1608 DR22 2007 000090 R CHIP 10Kohm 5 1 16W ...

Page 140: ...2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 MR58 2007 000090 R CHIP 10Kohm 5 1 16W DA TP 1608 MR59 2007 000539 R CHIP 200ohm 5 1 16W DA TP 1608 MR6 2007 000084 R CHIP 4 7Kohm 5 1 16W DA TP 1608 MR61 2007 000539 R CHIP 200ohm 5 1 16W DA TP 1608 MR62 2007 000090 R CHIP 10Kohm 5 1 16W DA TP 1608 MR63 2007 000539 R CHIP 200ohm 5 1 16W DA TP 1608 MR7 2007 000084 R CHIP 4 7Kohm 5 1 16W DA TP 1608 MR8 2...

Page 141: ...0W DA TP 2012 SC1 2203 001052 C CERAMIC CHIP 560pF 10 50V X7R TP 1608 SC10 2203 000257 C CERAMIC CHIP 10nF 10 50V X7R TP 1608 SC11 2203 001656 C CERAMIC CHIP 470pF 5 50V CH TP 1608 1 SC15 2203 000189 C CERAMIC CHIP 100nF 80 20 25V Y5V TP SC19 2203 000257 C CERAMIC CHIP 10nF 10 50V X7R TP 1608 SC2 2401 002144 C AL 47uF 20 16V GP TP 5x11 5 SC20 2203 000440 C CERAMIC CHIP 1nF 10 50V X7R TP 1608 SC21 ...

Page 142: ...33 2007 000087 R CHIP 6 8Kohm 5 1 16W DA TP 1608 SR34 2007 000450 R CHIP 180ohm 5 1 16W DA TP 1608 SR34A 2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 SR34B 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 SR35 2007 000086 R CHIP 5 6Kohm 5 1 16W DA TP 1608 SR36 2007 000450 R CHIP 180ohm 5 1 16W DA TP 1608 SR36A 2007 000090 R CHIP 10Kohm 5 1 16W DA TP 1608 SR36B 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608...

Page 143: ...Y5 FC5 2401 002165 C AL 100uF 20 16V GP TP 6 3x7 5 FC6 2202 000780 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5 FC7 2202 000780 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5 FC8 2401 003107 C AL 47uF 20 16V GP TP 5x7 5 FC9 2401 001573 C AL 47uF 20 50V GP TP 6 3x11 2 5 F CABI 3809 001025 CABLE FLAT 30V 80C 270MM 28P 1 25MM UL28 FD10 0401 000101 DIODE SWITCHING 1N4148 100V 200mA DO 35 FD5S 0601 000218 LED INVERT...

Page 144: ...mm PR12 2001 000073 R CARBON 33Kohm 5 1 4W AA TP 2 4x6 4mm PR13 2001 000073 R CARBON 33Kohm 5 1 4W AA TP 2 4x6 4mm PR14 2001 000073 R CARBON 33Kohm 5 1 4W AA TP 2 4x6 4mm PR15 2003 000273 R METAL OXIDE 33Kohm 5 2W AA TP 6x16mm PR16 2003 000273 R METAL OXIDE 33Kohm 5 2W AA TP 6x16mm PR17 2003 000455 R METAL OXIDE S 100ohm 5 2W AA TP 4x12 PR18 2001 000793 R CARBON 47ohm 5 1 8W AA TP 1 8x3 2mm PR31 2...

Page 145: ...M 5 1 8W AA TP KR2 2001 000290 R CARBON 10KOHM 5 1 8W AA TP KR20 2001 000780 R CARBON 470OHM 5 1 8W AA TP KR22 2001 000411 R CARBON 18KOHM 5 1 8W AA TP KR23 2001 000812 R CARBON 5 6Kohm 5 1 8W AA TP 1 8x3 2m KR24 2001 000290 R CARBON 10KOHM 5 1 8W AA TP KR25 2001 000008 R CARBON 15Kohm 5 1 8W AA TP 1 8x3 2mm KR26 2001 000290 R CARBON 10KOHM 5 1 8W AA TP KR27 2001 000331 R CARBON 12KOHM 5 1 8W AA T...

Page 146: ...3 Audio DAC PCM1720 DVD Processor TC90A19F A V Decoder Ziva 2 Video Encoder SAA7128 Main Controller TMP93CS41F SERVO CD Processor TC9420F 4M DRAM 4M EPROM 4M DRAM X 5EA COPY PROTECTOR 2M EPROM 1M SRAM DPD TA1253F Pick UP I V Amp LPF LPF LPF LPF LPF LPF LPF LPF Front Controller LC86P6232 Remote Control AMP AMP AMP AMP AMP AMP AMP AMP AMP AMP AMP AMP Coaxial Optical F L F R R L R R C T S W Y R Y B Y...

Page 147: ...13 1 Samsung Electronics 13 PCB Diagrams 13 1 MAIN BOARD 13 2 FRONT BOARD 13 3 SMPS BOARD 13 4 KARAOKE BOARD 13 5 PICK DECK ...

Page 148: ...13 2 Samsung Electronics 13 1 MAIN BOARD COMPONENT SIDE ...

Page 149: ...13 3 Samsung Electronics SOLDER SIDE PCB Diagrams ...

Page 150: ...13 4 Samsung Electronics 13 2 FRONT ...

Page 151: ...13 5 Samsung Electronics 13 3 SMPS ...

Page 152: ...13 6 Samsung Electronics 13 4 KARAOKE BOARD 13 5 PICK DECK ...

Page 153: ...14 1 Samsung Electronics 14 Wiring Diagram ...

Page 154: ...sung Electronics 15 Schematic Diagrams 15 1 MAIN 15 1 1 MICOM 15 1 2 SERVO 15 1 3 DATA PROCESSOR 15 1 4 A V DECODER 15 1 5 AUDIO 15 1 6 VIDEO 15 1 7 CONNECTOR 15 2 FRONT 15 3 SMPS 15 4 KARAOKE 15 5 PICK UP DECK ...

Page 155: ...15 2 Samsung Electronics 15 1 1 MICOM 15 1 MAIN ...

Page 156: ...15 3 Samsung Electronics Schematic Diagrams 15 1 2 SERVO ...

Page 157: ...15 4 Samsung Electronics Schematic Diagrams 15 1 3 DATA PROCESSOR ...

Page 158: ...15 5 Samsung Electronics Schematic Diagrams 15 1 4 A V DECODER ...

Page 159: ...15 6 Samsung Electronics Schematic Diagrams 15 1 5 AUDIO DVD 907K DVD 9901A Only ...

Page 160: ...15 7 Samsung Electronics Schematic Diagrams 15 1 6 VIDEO DVD 907K DVD 9901A Only ...

Page 161: ...15 8 Samsung Electronics Schematic Diagrams 15 1 7 CONNECTOR ...

Page 162: ...15 9 Samsung Electronics 15 2 FRONT BOARD ...

Page 163: ...15 10 Samsung Electronics 15 3 SMPS ...

Page 164: ...15 11 Samsung Electronics 15 4 KARAOKE BOARD ...

Page 165: ...15 12 Samsung Electronics 15 5 PICK UP DECK ...

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