Samsung DVD-739 Service Manual Download Page 59 | Manualshive

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Circuit Descriptions

6-18

Samsung Electronics

6-6-4 Scart Jack Output

The AV1 of scart jacks is used for connecting a TV or other display devices and the AV2 for a VCR or other players.
When the DVD player is turned on, the RGB, CVBS, or S-VIDEO is outputted to AV1 and CVBS to AV2. When the
player is turned off, CVBS signal of the TV is inputted and CVBS or RGB of a VCR inputted via AV2 is outputted.
In case of AV2, the reverse signal flow to that.
Switching of power on/off is controlled by SCIC1, SCIC2, and SCIC5.
The control signal (Pin 9,10,11) of SCIC1 and SCIC2 is outputted from PIN100 of FIC1 and connected to the sig-
nal(Pin 4) inverted by FIC3.
The control signal(Pin 9,10,11) of SCIC5 is also outputted from Pin100 of FIC1 and inverted again by SCQ8.
According to the characteristics that SCART Jack is supplied same pins for the output of CVBS signal and Y signal
and for the R signal and C signal, SCIC3 lets the user select two signals in setup menu.
This control signal (Pin 9,10,11) of the switch is outputted from Pin 92 of FIC1.
The signal selected by switch is amplified by SIC4 and SIC6 and outputted through the SCART jack.
The scart jack has the function select signal (Pin 8 of AV1) that the TV can select automatically RF and the external
video signal.
SCQ1 to SCQ7 are the circuit to point, FIC1 (Pin100, 94) controls. When the TV aspect ratio is 4/3 or 16/9, it is out-
putted 4.5 ~ 7V or 9.5 ~ 12V each. But, when the DVD video source is 16/9 and 16/9 wide is selected in setup
menu, 4.5 ~ 7V is outputted. Otherwise, 9.5 ~ 12V is outputted.
When the player is turned off, the TV works with function selection by output signal of VCR in relation of SCQ9
and SCQ10.
RGB control signal (Pin 16 of AV1) is outputted that the TV can select between RGB and CVBS.
SCQ11 ~ SCQ14 and SCQ17 are for RGB control and controlled by FIC1 (Pin91).
When the player is turned off, receives VCR input (Pin 37 of AV2) and buffers in this circuit and then outputs to
Pin 16 of AV1.

SIC2

(14053)

Switch

SIC1

(14053)

Switch

SIC3

(14053)

Switch

SIC5

(14053)

Switch

SIC4

(NJM2267)

Amplifier

SIC6

(BA7660)
Amplifier

AV1

TV

AV2
VCR

Y_S

C_S

R_S

R_VCR_IN

G_VCR_IN

B_VCR_IN

CVBS_VCR_OUT

R_TV_OUT

G_TV_OUT

B_TV_OUT

CVBS/Y_VCR_OUT

CVBS_TV_IN

R_VCR_IN

G_S

G_VCR_IN

B_S

B_VCR_IN

CVBS_VCR_IN

CVBS_S

CVBS_TV_IN

R/C_TV_OUT

G_TV_OUT

B_TV_OUT

CVBS_VCR_OUT

Fig. 6-23

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Summary of Contents for DVD-739

Page 1: ...ubleshooting 8 Exploded Views and Parts List 9 Electrical Parts List 10 Block Diagram 11 PCB Diagrams 12 Wiring Diagram 13 Schematic Diagrams Manual DVD PLAYER CONTENTS SERVICE MANUAL DVD 739 OPEN CLOSE STANDBY OPEN CLOSE 24bit 96kHz AUDIO D A CONVERTER DIGITAL VIDEO SPATIALIZER N 2 2 POWER SKIP ELECTRONICS Samsung Electronics Co Ltd JUN 1999 Printed in Korea AH68 00180A ...

Page 2: ...rwriters Laboratories UL 1270 40 7 With the instrumentÕs AC switch first in the ON position and then in the OFF position measure from a known earth ground metal water pipe conduit etc to all exposed metal parts of the instrument antennas handle brackets metal cabinets screw heads metallic overlays control shafts etc espe cially any exposed metal parts that offer an electri cal return path to the c...

Page 3: ...ched out of place or frayed wiring Do not change spacing between a component 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 necess...

Page 4: ...nd lead last 2 The service precautions 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 ratings Components i enti fied by shading by or by in t...

Page 5: ...osure of the assem bly 3 Use only a grounded tip soldering iron to solder or unsolder ESD devices 4 Use only an anti static solder removal devices Some solder removal devices not classified as Òanti staticÓ can generate electrical charges suffi cient 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...

Page 6: ...heet This gives them the same ground as the sheet 4 Remove 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 3 Be sure to put on a wrist strap grounded to the sheet 3 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 ...

Page 7: ...FPC Inserted into Main PCB CN6 See Fig 1 4 3 Disassemble the deck 4 Disassemble the deck PCB 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 ÒONÓ and insert FPC into Main PCB CN6 See Fig 1 4 SW3 ON OFF FPC Note If the assembly and disassembly are not done in correct sequence the Pick up may be damaged Fig 1 4 ...

Page 8: ...MUTE 9 I DFS 10 I DEM0 11 Soft mute pin When this pin goes H soft mute cycle is initiated When returning L the output mute releases Audio serial data input pin 64fs clock is recommended to be input on this pin Audio serial data input pin 2 s complement MSB first data is input on this pin Double speed sampling mode pin Internal pull down pin L normal speed H double speed L R clock pin De emphasis f...

Page 9: ...13 E 12 VREFEQ 11 RREF 10 RREFEQ 9 RREFBF 8 DDVD 7 CDVD 6 BDVD 5 ADVD 4 DCD 3 CCD 2 BCD 1 ACD to RF EQ TUNING BLOCK AGC HOLD OOH MUX AGC_DET RF MUX VREF GENERATOR CDRSEL 00H EQ VC AMP D D D D MUX3 GAIN_TE3 02H GCA OFSTHOLD TEOFST 04H TBAL 01H TE38 SUB RF MUX D1 B1 C1 A1 FE GAIN_FE 03H FE_0FST 05H CDRSEL 00H ANALOG VC AMP ALPC LDONB 00H FOFST OFSTHOLD MUX TESEL OOH OFSTHOLD ABCD_OFST O6H ENVELOPE F...

Page 10: ...n port SERVO defect max time setting Peak hold time constant connection port PLL defect min time setting 39 ABCD ENVP ENVB ENV DGND FOKTH FOKB DFCT_CP1 DFCT_CP2 O O I O P 62 61 60 59 58 57 56 55 54 53 52 51 50 49 Output port of peak detector for defect AC coupling input port for defect Power voltage input port for digital circuit Resistance connection port for PLL defect comparat ing level setting...

Page 11: ...L EFMI RFI ASYDVD ASYCD EFM EFMOA PLLHD INTO_224 FDCTL MAGICO EQCTL VCTRL RVCO PLCK EFMRTD RPD RFD PLLLOCK MDOUT 3 0 PSB SENSE MDATA 7 0 MRDB MWRB CSB DAB SCOR SQSI SQCK LDONB TLKB FLKB DIRC PS1 SSTOP PSO SMON LOCK DFCT FOKB MIRR TZCA PHI1 XOUT XO XI TEST RSTB TILTO TILTI ROM DSP CORE FOR DIGITAL SERVO TIMING GENERATOR I O INTERFACE BLOCK SUB CODE READ BLOCK SYSCON INTERFACE BLOCK WIDE CAPTURE RAN...

Page 12: ...r signal input pin PLL hold signal from micom Servo interrupt monitor pin PLL logic block VDD power supply pin PLCK Frequency lock detect output H Lock L Unlock Latched EFM output signal PLL logic block VSS power supply pin Resistor pin for VCO GAIN Gain adjust resister for frequence detector Gain adjust resister for phase detector Control voltage for VCO Input for hysteresis control of FD output ...

Page 13: ...35KHz EFM DEMOD SUBCODE I F CD G V CD CD DA SQ VCD DVDP DEINTERLEAVE RAM CONTROL 6 4 3 trans ID ECC EDC DESCRAMBLER MICOM I F M M TO MICOM 15 MDAT 7 0 MRZA ZCS MWR MRD ZIRQZD ZWAIT ZRST TO DRAM 256K 16 32 DD 15 0 DADR 8 0 ZRAS ZUCAS ZLCAS ZOE 1 0 ZWE 1 0 TO AV 13 SDATA 0 CDATA SDATA 1 LRCK SDATA 2 BCLK SDATA 3 C2PO SDATA 4 SQDT SDATA 5 WFSY SDATA 6 SOS1 SDATA 7 SQCK DATREQ CSTROBE DTER DATACK TOS ...

Page 14: ...DRAM data bus 33 DD6_BI FUNCTION PIN NAME Digital GND 5V 97 DVSS System clock output for 33 8688MHz 96 CK33MO_OUT System clock input for 33 8688MHz 95 CK33MI_IN Digital out 92 TX_OUT Good frame sync detection result output H active 93 GFS_OUT Frame sync out 91 FRSYZ_OUT Digital GND 0V 90 DVSS Digital GND 0V 89 DVSS Digital GND 0V 88 DVSS Digital GND 0V 87 DVSS Digital power 5V 86 DVDD Digital powe...

Page 15: ...Lower 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 Refresh Timer Refresh Control AO A8 Refresh Counter Row Address Buffer Col Address Buffer Row Decoder Column Decoder Memory...

Page 16: ...d Content Descrambled Compressed Content Decompressed Content Display Content LOGIC DIAGRAM HADDR 2 0 RD HDATA 7 0 WAIT DTACK INT HOST8SEL Host Interface Signals Video Interface Signals DVD CD Interface Signals Audio Interface Signals SDRAM EDO Interface Signals Global Interface Signals DA DATA 0 3 DA LRCK DA BCK DA XCK DA IEC EDO CAS EDO RAS LDQM MDATA 15 0 MADDR 20 0 MWE ROM CS SD CLK SD CAS 1 0...

Page 17: ... 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 NAME res SP A P LLC1 V SS1 V DD1 RCV1 RCV2 I O I I I I I I O I O PIN 1 2 3 4 5 6 7 8 FUNCTION Reserved pin do not connect Test Pin connected to digital ground for normal operation Test Pin connected to digital ground for normal operation Line Locked Clock input this is the 27 MHz master clock Di...

Page 18: ... for R Cr C CVBS outputs Analog output of Green Y signal Analog output of VBS CVBS signal Analog supply voltage 2 for VBS CVBS Green Y outputs Analog output of Blue Cb signal Analog output of CVBS CSYNC signal Analog supply voltage 3 for Blue Cb and CVBS CSYNC outputs Analog ground 2 for VBS CVBS Blue Cb CVBS CSYNC outputs Double speed 54 MHzMPEG port It is an input for CCIR 656 style multiplexed ...

Page 19: ...TEST2 1 NMI WDTOUT 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 PORT 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...

Page 20: ...ck SCLK SCLKO RF control data MD TXD1 RF data latch STB 094 RF control clock MC SCLK1 Address mode H 8 bit mode AM8 AM8 16 Clock output System clock 2 CLK CLK VCC Vcc GND GND Vss High frequency OSC in X1 X1 High frequency OSC out X2 X2 External access CS41 CS40 EA EA Master reset from FRONT MRST RESET FUNCTION ASSIGNED NAME PORT NAME No I O I I O O O O I I I I I I O I O I I O I O O I O I O I I 80 ...

Page 21: ... Vcc A17 A14 A13 A8 A9 A11 OE VPP A10 CE DQ7 DQ6 DQ4 DQ4 DQ3 32 31 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 A19 Address Inputs OE VPP X Decoder Data Outputs DQ0 DQ7 CE Vcc Vss BLOCK DIAGRAM FUNCTION Address Inputs Chip Enable Input Data Input Outputs Output Enable Input Vcc Syply Volta...

Page 22: ...1 Reset RES Low frequency OSC in GND XT1 Low frequency OSC out XT2 GND VSS High frequency OSC in CF1 High frequency OSC out CF2 VDD VDD ECHO volume A D input ECHO_VR AN0 P80 MIC detect MIC_DET AN1 P81 AN2 P82 HARDWARE MODE SELECT MODE0 AN3 P83 HARDWARE MODE SELECT MODE1 AN4 P84 HARDWARE MODE SELECT MODE2 AN5 P85 HARDWARE MODE SELECT MODE3 AN6 P86 HARDWARE MODE SELECT MODE4 AN7 P87 Request to front...

Page 23: ...Reference Information 2 16 Samsung Electronics MEMO ...

Page 24: ...me 74min CD 31 2 inches Reading Speed 3 9 to 4 6 ft sec Compact Disc Maximum Play Time 20min VCD 5 inches Reading Speed 3 9 to 4 6 ft sec Maximum Play Time 74min Video Audio Component Video 1 channel 1 0Vp p 75ohm load Y 1 0Vp p 75ohm load Video Output Component Video Pr 0 70Vp p 75ohm load Pb 0 70Vp p 75ohm load S Video Luminance Signal 1Vp p 75ohm load Color Signal 0 286Vp p 75ohm load 2 channel...

Page 25: ...Product Specification 3 2 Samsung Electronics MEMO ...

Page 26: ...DICATOR CHAPTER INDICATOR REPEAT INDICATOR CHAPTER TITLE TRACK MESSAGE INDICATOR ALL REPEAT INDICATOR A B REPEAT INDICATOR PROGRAM PLAY INDICATOR MPEG INDICATOR DOLBY DIGITAL INDICATOR LINEAR PCM INDICATOR DTS INDICATOR DIGITAL AUDIO OUT ANALOG AUDIO OUT R L VIDEO OUT S VIDEO OUT COMPONENT VIDEO OUT Y Pb Pr D escription Rear Panel DIGITAL AUDIO OUT JACK Use a coaxial digital cable to connect to an...

Page 27: ... CLEAR Button Use to remove menus or status displays from the screen MODE Button Allows you to program a specific order DISPLAY Button Displays the current disc mode MENU Button Brings up the Disc menu ENTER DIRECTION Button UP DOWN or LEFT RIGHT Button This button functions as a toggle switch ANGLE Button Use to access various camera angles on a DVD SUBTITLE Button A B REPEAT Button Use to mark a...

Page 28: ...re connecting for more information on those par ticular components TV Normal Widescreen Projection etc Audio Input Jacks Good picture Basic Audio OR OR AV Cable included S Video Cable included Video Cables not included Better picture Best picture Video Input Jack S Video Jack Component Video Jacks Method 1 Method 2 Method 3 C hoosing a Connection Cont d DIGITAL AUDIO OUT R L ANALOG AUDIO OUT R L A...

Page 29: ...Operating Instructions 4 4 Samsung Electronics MEMO ...

Page 30: ...semble the Door Tray in direction of arrow ÒAÓ 3 Close Tray Œ and power off Note If Tray Œ doesnÕt open insert a Screw driver into the Emergency hole ˇ as shown in detailed draw ing and then turn it in the direction of arrow ÒBÓ Open Tray manually ˇ EMERGENCY HOLE Bottom View Œ TRAY DOOR TRAY A B SCREW DRIVER Fig 5 1 Door Tray Removal ...

Page 31: ...ly Reaasembly 5 1 2 Top Cabinet Removal 1 Remove 3 Screws Œ on the back Top Cabinet 2 Remove 2 Screws ˇ on the left and right side 3 Lift up the Top Cabinet in direction of arrow Œ 3 SCREWS 1 SCREW ˇ 1 SCREW Fig 5 2 Top Cabinet Removal ...

Page 32: ...WS ˆ 3 SCREWS ASS Y FRONT PANEL POWER PCB Ø PLAY PCB Fig 5 3 Ass y Front Panel Power PCB Play PCB Removal 5 1 3 Ass y Front Panel Power PCB Play PCB Removal 1 Remove 2 Screws Œ and AssÕy Front Panel 2 Remove 2 Screws ˇ and Power PCB 3 Remove 3 Screws ˆ and Play PCB Ø ...

Page 33: ...mbly Reaasembly Œ 4 SCREWS ˇ JACK PCB ˆ MAIN PCB 1 SCREW 3 SCREWS Fig 5 4 Main PCB Jack PCB Removal 5 1 4 Main PCB Jack PCB Removal 1 Remove 4 Screws Œ and 1 Screw 2 Lift up the Jack PCB ˇ 3 Remove 3 Screws and lift up the Main PCB ˆ ...

Page 34: ...Disassembly Reaasembly Samsung Electronics 5 5 Œ 4 SCREWS 5 1 5 Ass y Deck Removal 1 Remove 4 Screws Œ from the AssÕy Deck and lift it up Fig 5 5 Ass y Deck Removal ...

Page 35: ...5 6 Samsung Electronics Disassembly Reaasembly JACK PCB MAIN PCB POWER PCB PLAY PCB 5 2 PCB Location Fig 5 6 PCB Location ...

Page 36: ...CB JACK PCB CN16 CN16 JACK PCB PLAY PCB CON22 ˆ CN12 JACK PCB MAIN PCB CN7 Ø CN7 MAIN PCB JACK PCB CN12 CN11 JACK PCB MAIN PCB CN8 CN8 MAIN PCB JACK PCB CN11 CN5 DECK PCB MAIN PCB CN6 CN6 MAIN PCB DECK PCB CN5 CT1 CT1 CT2 CT2 CT3 CT3 CT4 CT4 CT5 CT5 Œ ˆ ˇ Ø POWER PCB JACK PCB PLAY PCB MAIN PCB CT1 CT3 CT2 CT4 CT5 5 3 Connector Diagram Fig 5 7 Connector Diagram ...

Page 37: ...to Emergency hole and push it in the direction of arrow ÒAÓ When the Tray Ø comes out a little pull it in the direction of arrow ÒBÓ by hand 3 Pull the Tray Ø to disassemble while simultaneously pushing the Hook in direction of arrow ÒAÓ ÒBÓ Fig 5 8 Tray Removal ˇ ASS Y DECK CLAMPER C B Ø TRAY HOOK Œ 2 SCREWS COVER SHEET D HOOK EMERGENCY HOLE Bottom View A ˆ SCREW DRIVER ...

Page 38: ...Removal 1 Remove 2 Screws Œ and disassemble the AssÕy PCB deck 2 Disassemble the AssÕy Deck Sub in direction of arrow ÒBÓ while simultaneously pushing the Hook ˇ in direction of arrow ÒAÓ Fig 5 9 Ass y Deck Sub Removal ASS Y DECK SUB B A ˇ HOOK ASS Y PCB DECK Œ 2 SCREWS ...

Page 39: ... Sub 4 Remove 2 Screws and disassemble the AssÕy Motor Load Ô 5 Remove 1 Screw and disassemble the Lever Open S W Ò 6 Lift up the Shaft Syncro Ú and remove the 2 Gear Syncro Æ in both directions Fig 5 10 Chassis Main Parts Removal BELT PULLEY ˆ 1 SCREW GEAR TRAY A 1 SCREW Ø PULLEY GEAR 2 SCREWS 1 SCREW ˇ GEAR CAM CENTER ˇ GEAR CAM CENTER Ô ASS Y MOTOR LOAD Ú SHAFT SYNCRO Æ GEAR SYNCRO Æ GEAR SYNCR...

Page 40: ...Disassembly Reaasembly Samsung Electronics 5 11 5 4 4 Ass y Brkt Deck Removal 1 Remove 4 Screws Œ 2 Lift up the AssÕy Brkt Deck Fig 5 11 Ass y Brkt Deck Removal Œ 4 SCREWS ASS Y BRKT DECK ...

Page 41: ...he AssÕy Motor Spindle 4 Remove the Washer Plain and disassemble the AssÕy Gear Feed AU AL 5 Remove the Washer Plain Ô and disassemble the Gear Feed B 6 Remove the Washer Plain Ò and disassemble the AssÕy Gear Feed CU CL Ú Fig 5 12 Ass y Deck Parts Removal Œ 2 SCREWS ASS Y MOTOR SPINDLE 3 SCREWS HOLDER CAM ˇ SHAFT P U ˇ SHAFT P U Ø ASS Y PICK UP ˆ RACK SLIDE 2 SCREWS ASS Y GEAR FEED AU AL WASHER P...

Page 42: ... Vreg Vout Vs Ns Vp Np REGULATOR Common power Ex 120 220V 50 60Hz Fig 6 1 Linear Power Supply 3 Waveform Description Vs t 0 Fig 6 2 Vs t 0 Fig 6 3 Vout t 0 Fig 6 4 Input Common power to transformer Vp The output Vs of transformer is determined by the ratio of 1st Np and 2nd Ns Vs Ns Np x Vp Vout is output DC by diode and condensor ...

Page 43: ...sed by margin design Greater core size and condensor capacity are ne eded because the transformer works on a single power frequency 6 1 1 b S M P S Pulse width modulation method v Vreg Vout 0 t Change by common power Regulator loss Fig 6 5 3 Terms 1 1st Common power input to 1st winding 2 2nd Circuit followings output winding of transformer 3 f Frequency Switching frequency T Switching cycle 4 Dut...

Page 44: ...ed power by leakage inductance Fig 6 7 1 Prevent residual high voltage 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 LI xdi dt LI Leakage Induction A very high residual voltage exists on both terminals of PIC1 because dt is a very short 2 SNUBBER circuit protects PIC1 from damage through leakage...

Page 45: ...wn 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 3 If load of 5 8 V terminal decreases or AC input voltage rises and Vout rises above 5 8V then Reverse sequence of the above description Duty down Vout down Maintain 5 8V i e the feedback to main...

Page 46: ...ing Circuit 5V Rectified Smoothing Circuit 8V Rectified Smoothing Circuit 8V Rectified Smoothing Circuit 3 3V Rectified VoltageCircuit 5V Rectified VoltageCircuit x2 Motor 8V 1 Port 8V Rectified VoltageCircuit 8V Rectified VoltageCircuit O U T P U T Fig 6 9 6 1 3 b PIC1 STR G6153T Internal Block Diagram Voltage Ref UVLO Vcc Drain Source GND Sense S Q R S Q R OSC Vck 32V Feedback LEB Reset 7 5V 5v ...

Page 47: ...shows the flow of signal generated by the pick up A B C D signals detected from pick up are converted in to RF signal A B C D via RF summing AMP Fig 6 12 shows the waveform equalizing block diagram for the RF signal It outputs to EQout Pin 86 terminal by initially changing switching AMP gain of DVD and CD and then adjust ing the level in RF SUM AGC It controls RF SUM AGC gain by means of Pin 89 95...

Page 48: ... of DVD EQ and CD EQ are as follows 1 DVD CD EQ control parameter Œ EQG Pin 97 Changes the gain of peak frequency with EQ frequency characteristic Convert PWM signal output from KS1453 into DC via low pass filter EQF Pin 98 Changes the peak frequency with EQ frequency characteristic Convert PWM signal output from KS1453 into DVD via low pass filter ...

Page 49: ...IC1 TMP93CM41F 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 board to exe cute the corresponding commands after initializing the devices connected with micom on board at power on 6 3 2 Block Diagram RIC1 RF AMP KS1461 SIC1 DIGITAL SERVO KS1452 VIC1 A V DECODER ZIV...

Page 50: ...ously CH1 CS2 MIC8 22 EPROM CHIP SELECT CH2 DSPCS DIC1 2 DATA PROCESSOR CHIP SELECT CH3 DVDCS VIC1 206 A V DECODER CHIP SELECT CH4 SRVCS SIC1 10 DIGITAL SERVO CHIP SELECT CH5 WR MIC1 73 MICOM OUTPUT WRITE SIGNAL CH6 RD MIC1 72 MICOM OUTPUT READ SIGNAL CS2 DSPCS DVDCS SRVCS RD WR Fig 6 14 CH1 CS2 MIC8 22 EPROM CHIP SELECT CH2 DSPCS DIC1 2 DATA PROCESSOR CHIP SELECT CH3 DVDCS VIC1 206 A V DECODER CH...

Page 51: ...PROM CHIP SELECT CH2 DSPCS DIC1 2 DATA PROCESSOR CHIP SELECT CH3 DVDCS VIC1 206 A V DECODER CHIP SELECT CH4 SRVCS SIC1 10 DIGITAL SERVO CHIP SELECT CH5 WR MIC1 73 MICOM OUTPUT WRITE SIGNAL CH6 RD MIC1 72 MICOM OUTPUT READ SIGNAL CS2 DSPCS DVDCS SRVCS RD WR Fig 6 16 ...

Page 52: ...low 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 Controls the disc motor to maintain a constant linear velocity necessary for RF signal 6 4 2 Block Diagram Fig 6 17 DI...

Page 53: ...in65 of SIC1 FEI Pin39 of RIC1 ABCD 2 PLAY When focus loop closes the loop during focus servo on both pin 65 and pin 75 of SIC1 are controlled by VREF voltage approx 2 5V and pin 1 2 of DRIC2 are approximately 4 5V 2 TRACKING SERVO 1 NORMAL PLAY MODE Œ For DVD Composite The signal output from PD A B C D of Pick up the tracking error signal pin36 of RIC1 uses the phase difference of A C and B D in ...

Page 54: ...lay mode Move SLED motor slightly by means of PWM signal in SIC1 pin 73 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 SIC1 uses sled FG SIC8 pin 1 7 which is generated by rotation of sled motor via hall PCB Then read ID and compute the existing t...

Page 55: ... filled this status is report ed by interrupt to main micom which controls the servo to kick back the pick up to the previous track after mem orizing the last data read from disc until now It takes some times to jump to the previous track and return to the original jump location again The memory will have an empty space because A V decoder reads out data of mem ory When the memory has an empty spa...

Page 56: ...5 3 Waveform Description It measures the timing that data processed in DIC1 at DVD playback STROBE REQ DACK SDATA all 2 2 0 1 0 Fig 6 20 CH1 STROBE DIC1 69 CLOCK CH2 REQ DIC1 70 DATA REQUEST CH3 DACK DIC1 58 DATA ACKNOWLEDGE CH4 SDATA DIC1 60 67 DATA ...

Page 57: ...nd D A conversion of 8bit video data inputted from VIC1 A V decoder by control of MIC1 Micom Video signal converted into analog signal is outputted via amplifier of analog part Main Board Output Board VIC1 A V Decoder ZiVA 3 MIC1 Main Micom TMP93CM41F Video data VIC50 SAA7128 Video encoder VIC52 Amplifier BA7660 VIC51 Amplifier BA7660 CVBS 1 CVBS 2 Y C Y Pr Pb Fig 6 21 Video Output Block Diagram ...

Page 58: ... copy protection VDATA 7 0 VSYNC HSYNC 27M MRST SDA SCL 9 16 7 8 4 40 42 41 Demultiplexer Y CR CB RGB encoding Luminace processing MACROVISION 7 0 1 6 1 Cloed captions CGMS Chrominance processor CTRL CFG register Trap 10 bit DAC 30 27 24 23 26 29 CVBS Y C Cr R G Cb B VIC1 SSA7128 Fig 6 22 6 6 3 Amplifier VIC51 VIC52 BA7660 VIC51 and VIC52 are 6dB amplifier Based on CVBS signal the final output lev...

Page 59: ...lected by switch is amplified by SIC4 and SIC6 and outputted through the SCART jack The scart jack has the function select signal Pin 8 of AV1 that the TV can select automatically RF and the external video signal SCQ1 to SCQ7 are the circuit to point FIC1 Pin100 94 controls When the TV aspect ratio is 4 3 or 16 9 it is out putted 4 5 7V or 9 5 12V each But when the DVD video source is 16 9 and 16 ...

Page 60: ...tput and surround L R center and subwoofer arenÕt outputted If DVD of 2 channels source disc is used it is outputted by the same way with CD and VCD If 5 1 channel source disc front L R channel is outputted in Data 1 Surround L R in Data 2 and Center Sub woofer in Data 3 At that time 5 1 channel can be downmixed in 2 channel in Data 0 AIC2 AK4324 D A CONVERTER POST FILTER POST FILTER AIC1 AK4324 D...

Page 61: ... is that data isnÕt compressed so it is called CD DA LPCM data The 2 channels data is converted through audio decoder 2 channel data and Data 0 and Data 1 are outputted in digital audio interface Via IEC 958 output process they is transmitted to digital amplifier or AC 3 MPEG DTS amplifier built in the external digital input source with IEC 958 1937 transmission format AUDIO INPUT BUFFER AUDIO OUT...

Page 62: ...o No Yes TE occurs in search range Focus On Yes Yes Yes No Yes A See Fine Seek Check No FINE SEEK Check FINE SEEK MIRR signal RIC1 57 is missing TZCO signal SIC1 52 is occurs Track incomming is delayed TE is within 2V and 3V Pick up transfer smooth Check RIC1 Peripheral curcuit Check SIC1 Peripheral curcuit Time out due to many jump counts Check SIC1 peripheral circuit SIC1 76 output is normal DRI...

Page 63: ... motor Check DIC1 MIC1 Check DRIC1 soldering and power Check path to RIC1 and SIC1 Check RIC1 soldering and power RIC1 86 output are normal RIC1 88 output is normal Check RIC1 peripheral circuit and A B C D Yes Yes Yes Yes Yes Yes No No No No No No No Tray open close MIC1 84 85 is Open L L Close H H Check DRIC2 26 27 output at open close Check signal line state from DRIC1 26 27 to tray motor Micom...

Page 64: ...putted from object lens at play key input No focus incoming and no disc occurs Yes No B A No focus incoming FE in SIC1 65 is within specified range DRIC4 1 2 output are normal Check open state from DRIC4 to pick up Check RIC1 and A B C D input Check DRIC4 Yes Yes No No A ...

Page 65: ... Check SIC8 DRIC2 signal transfer system Yes No NO LD ON RIC1 28 is 5V RIC 29 output is 200mV Current exceeds 0 1A LD out pick up replace Open check in related circuit LD MPD error Replace pick up RIC1 50 output is 0V Check MIC1 Yes Yes Yes Yes Yes No No No No Divide RQ1 emitter terminal voltage and 5V real voltage difference into 33ohm B ...

Page 66: ...1 7 output is normal Check AOP1 peripheral circuit Yes No Base terminal level of AQ1 2 3 4 are L Check FIC1 98 mute Yes No Front L R output error Analog Audio output Normal DATA 1 is input in AIC2 7 Analog output of AIC2 16 17 18 19 is normal Check AVJ3 peripheral soldering shot Check VIC1 163 output Check VIC1 169 CD VCD 16 9344MHz DVD 18 432MHz Yes Yes No No AOP2 1 7 output is normal Check AOP2 ...

Page 67: ...t is normal Check AOP3 peripheral circuit Yes No Base terminal level of AQ9 10 11 12 are L Check FIC1 97 mute Yes No Center Sub Woofer output error Analog Audio output 5 1 channel is contained in playing disc Normal DATA 3 is input in AIC4 7 Check AVJ3 peripheral soldering shot Output only in 2 channel stereo channel Check VIC1 165 output Yes Yes No No Analog output of AIC4 16 17 18 19 is normal C...

Page 68: ...ring shot Check VIC1 peripheral circuit Check VIC5 Yes No No Yes No Power Standby LED OFF PF01 error PD01 voltage is missing Replace PIC1 Replace fuse Check PR10 No No Yes Yes PIC1 drain pin 1 voltage is missing Check 2d voltage No No Voltage exists in PIC1 5 Check PR11 12 13 14 Yes No Pulse is missing in PIC1 5 Replace PIC1 Check feed back Yes Yes ...

Page 69: ... FIC2 Yes No FIC1 soldering is OK Check FIC1 soldering Yes No Operational waveform is missing in FIC3 FLT pin Check FIC1 peripheral circuit Yes Yes Key of STOP PLAY OPEN work normally Check S W interface Check communication status with main micom Check FIC1 pins 27 72 73 74 75 No No DVD play error NO DISK appears after pick up moves up and down twice at power on 27MHz clock is input in DIC1 14 VIC...

Page 70: ... of micom common bus 8 bit Check short or operating of micom Check soldering of micom and communication devices Yes No Play works Check VIC1 peripheral unit Yes No Yes Yes Yes Yes C Key operation or remote control error MIC1 9 is fixed to 0V MIC7 4 5 pin is fixed to 0V Check A V decoder signal process block Check DVD signal process block Yes Yes MIC1 10 19 waveform state 0 1 changes whenever press...

Page 71: ...6 87 in MIC1 and pin 41 42 in VIC50 Check the connection with pin 180 182 184 189 in VIC1 Video data are inputed normally at pin 9 16 in VIC50 Analog signals output normally at pin 30 27 24 29 23 in VIC50 Yes No Yes D Change VIC50 No No Check the soldering of VIC50 Change VIC50 No No Analog signals are inputed normally at pin 2 4 7 in VIC51 52 Power is normal at pin 16 in VIC51 52 Check the connec...

Page 72: ...Samsung Electronics 8 1 8 Exploded View and Parts List 8 1 Cabinet Assembly 8 2 Deck Assembly Page 8 2 8 4 ...

Page 73: ...ectronics 8 1 Cabinet Assembly 151 602 ASSY PCB JACK 151 1 701 151 702 151 2 12 11 12 S N A CABINET BOTTOM 611 610 601 ASSY PCB MAIN 151 150 CN11A 14 13 605 151 150 101 150 S N A DECK DVD MECHA S N A Service Not Available S N A CHASSIS REAR UT01 ...

Page 74: ... 000275 SCREW TAPTITE BH B M3 L10 BLK SWCH1018 151 6003 000276 SCREW TAPTITE BH B M3 L10 ZPC YEL SWC 101 AH97 00188D ASSY CABINET TOP DVD 739 ASSY XAA 601 AH92 00172A ASSY PCB MAIN DVD 739 MAIN PCB 602 AH92 00173A ASSY PCB JACK DVD 739 JACK PCB 605 AH63 00040A GROUND REAR PBS T0 2 DVD 909 610 AH39 00034A POWER CORD KJ 10W EP2 1 83M CONNECTOR 611 3301 000132 CORE FERRITE AC 28 8x19 3x7 5mm 1400 290...

Page 75: ...8 2 Deck Assembly 903 903 225 225 903 225 223 217 222 220 218 909 201 210 212 213 209 908 208 231 229 230 230 205 203 202 227 902 207 904 901 211 219 903 224 905 901 907 215 220 216 220 221 204 206 214 906 S N A 216 S N A Service Not Available S N A S N A ...

Page 76: ...6 20228A RACK SLIDE DP KEPITAL F20 03 WHT M0 4 P1 218 AH30 20001B PICK UP SPU DP1 DVD 909 219 AH91 60151A ASSY MOTOR SPINDLE DP 3 DVD 909 220 AH60 30020A WASHER PLAIN DP ID3 1 OD6 T0 3 RED COL 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 W 223 AH91 60121A ASSY GEAR FEED CU CL DP 1 DVD 860 224 AH63 30245B COVER sheet T0 7 CLR BLK CARBON 22...

Page 77: ...Exploded Views and Parts List 8 6 Samsung Electronics MEMO ...

Page 78: ...BEAD AB 2 0x1 25x0 9mm DRL2 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm DRR10 2007 000084 R CHIP 4 7Kohm 5 1 16W DA TP 1608 DRR11 2007 000087 R CHIP 6 8Kohm 5 1 16W DA TP 1608 DRR12 2007 000087 R CHIP 6 8Kohm 5 1 16W DA TP 1608 DRR13 2007 000090 R CHIP 10Kohm 5 1 16W DA TP 1608 DRR14 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 DRR3 2007 007157 R CHIP 1ohm 5 1 4W DA TP 3216 DRR4 2007 007157 R CH...

Page 79: ...0 50V X7R TP 1608 RC8 2203 000384 C CERAMIC CHIP 015NF 5 50V NPO TP 1608 RC9 2203 000257 C CERAMIC CHIP 10nF 10 50V X7R TP 1608 RD1 0401 000008 DIODE SWITCHING DAN217 80V 100mA SOT 23 RD2 0403 001079 DIODE ZENER UDZ3 9B 7 200MW SOD 323 TP RD6 0407 000114 DIODE ARRAY DAN202K 80V 100mA CA2 3 SOT RD7 0407 000114 DIODE ARRAY DAN202K 80V 100mA CA2 3 SOT RE10 2401 002036 C AL 1uF 20 50V GP TP 5x11 2 5mm...

Page 80: ...2 0x1 25x0 9mm SL3 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm SL4 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm SQ1 0504 000128 TR DIGITAL NPN 200MW 22K 22K SOT 23 TP SR1 2007 000090 R CHIP 10Kohm 5 1 16W DA TP 1608 SR10 2007 000084 R CHIP 4 7Kohm 5 1 16W DA TP 1608 SR11 2007 000107 R CHIP 470Kohm 5 1 16W DA TP 1608 SR12 2007 001235 R CHIP 910Kohm 5 1 16W DA TP 1608 SR13 2007 000070 R CHIP ...

Page 81: ...L11 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL12 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL13 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL14 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL15 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL16 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL17 3301 000353 CORE FERRITE BEAD AB 2 0x1 25x0 9mm VL18 3301 000353 CORE FERRITE ...

Page 82: ...60 2202 002037 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V AC7 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP AC71 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP AC73 2301 000161 C FILM PEF 12nF 5 50V 6 5X5 5X3 0X5 5mm AC74 2301 000161 C FILM PEF 12nF 5 50V 6 5X5 5X3 0X5 5mm AC8 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP AC90 2202 000849 C CERAMIC MLC AXIAL 18pF 5 50V CH TP 3 AC94 2202 00...

Page 83: ...R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR102 2001 000273 R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR103 2001 000273 R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR104 2001 000273 R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR105 2001 000273 R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR106 2001 000273 R CARBON 100KOHM 5 1 8W AA TP 1 8X3 2MM FR11 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM FR12 2001 0002...

Page 84: ...2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP VC10 2202 000849 C CERAMIC MLC AXIAL 18pF 5 50V CH TP 3 VC100 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP VC101 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP VC102 2202 002037 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V VC103 2202 002037 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V VC104 2202 002037 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V VC105 20...

Page 85: ...12V 50mA 160gf 50gf 6x6mm S FSW5 3404 000165 SWITCH TACT 12V 50mA 160gf 50gf 6x6mm S FSW6 3404 000165 SWITCH TACT 12V 50mA 160gf 50gf 6x6mm S 202 ASSY PCB DECK DP 3 CN1 3708 001081 CONNECTOR FPC FC PIC 11P 1mm STRAIGHT SN CN2 3708 001001 CONNECTOR FPC FC PIC 20P 1mm SMD A SN CN3 3711 000827 CONNECTOR HEADER BOX 2P 1R 2mm STRAIGHT CN4 3708 001108 CONNECTOR FPC FC PIC 8P 1 0MM ANGLE SN CN5 3708 0010...

Page 86: ...2K EEPROM Pick UP I V Amp Remote Control AMP AMP AMP Coaxial LT RT Yout Cout SIC1 KS1452 Digital Servo DIC1 KS1453 DVD CD Processor RIC1 KS1461 RF Amp DPD MIC8 8M EPROM MIC1 TMP93CM41F Main Controller FIC1 LC86P6232 Front Controller VIC1 ZiVA 3 A V Decoder VIC50 SAA7128 Video Encoder AIC1 AK4324 Audio DAC CVBS LPF LPF AMP AMP AMP AMP AMP Y Pb Pr ...

Page 87: ...Block Diagrams 10 2 Samsung Electronics MEMO ...

Page 88: ...Samsung Electronics 11 1 11 PCB Diagrams 11 2 11 3 11 4 11 4 11 4 11 1 Main 11 2 Jack 11 3 Power 11 4 Play 11 5 Deck ...

Page 89: ...PCB Diagrams 11 2 Samsung Electronics 11 1 Main COMPONENT SIDE SOLDER SIDE ...

Page 90: ...PCB Diagrams Samsung Electronics 11 3 11 2 Jack ...

Page 91: ...PCB Diagrams 11 4 Samsung Electronics 11 5 Deck 11 4 Play 11 3 Power ...

Page 92: ...Samsung Electronics 12 1 12 Wiring Diagram JACK PCB MAIN PCB DECK PCB PLAY PCB POWER PCB ...

Page 93: ...Wiring Diagram 12 2 Samsung Electronics MEMO ...

Page 94: ... 1 S M P S 13 2 Main Power Supply 13 3 Main Micom 13 4 Servo 13 5 Video 13 6 Audio 13 7 5 1 Channel Audio DVD 929K Only 13 8 RF 13 9 ZiVA 13 10 DSP 13 11 Front Micom VFD Display 13 12 Scart Jack 13 13 Mute 13 14 Karaoke Power 13 15 Play 13 16 Deck 13 17 Remote Control Block Identification of PCB Main PCB Component Side Jack PCB Conductor Side ...

Page 95: ...Schematic Diagrams 13 2 Samsung Electronics 13 1 S M P S ...

Page 96: ...Schematic Diagrams Samsung Electronics 13 3 13 2 Main Power Supply ...

Page 97: ...Schematic Diagrams 13 4 Samsung Electronics 13 3 Main Micom ...

Page 98: ...Schematic Diagrams Samsung Electronics 13 5 13 4 Servo ...

Page 99: ...Schematic Diagrams 13 6 Samsung Electronics 13 5 Video Y Output C Output CVBS Output ...

Page 100: ...Schematic Diagrams Samsung Electronics 13 7 13 6 Audio ...

Page 101: ...Schematic Diagrams 13 8 Samsung Electronics KCN1 KCN2 13 7 5 1 Channel Audio DVD 929K Only ...

Page 102: ...Schematic Diagrams Samsung Electronics 13 9 13 8 RF ...

Page 103: ...Schematic Diagrams 13 10 Samsung Electronics 13 9 ZiVA ...

Page 104: ...Schematic Diagrams Samsung Electronics 13 11 13 10 DSP ...

Page 105: ...Schematic Diagrams 13 12 Samsung Electronics CN18 TO KARAOKE KCN3 CN15 TO KEY CON21 13 11 Front Micom VFD Display ...

Page 106: ...Schematic Diagrams Samsung Electronics 13 13 13 12 Scart Jack R Output Scart Jack G Output Scart Jack B Output Scart Jack ...

Page 107: ...Schematic Diagrams 13 14 Samsung Electronics 13 13 Mute ...

Page 108: ...Schematic Diagrams Samsung Electronics 13 15 13 14 Karaoke Power ...

Page 109: ...Schematic Diagrams 13 16 Samsung Electronics 13 15 Play ...

Page 110: ...Schematic Diagrams Samsung Electronics 13 17 13 16 Deck ...

Page 111: ...Schematic Diagrams 13 18 Samsung Electronics 13 17 Remote Control ...

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