Page 1: Table Of Contents
3. Product Specification 4. Operating Instructions 5. Disassembly and Reassembly 6. Alignment and Adjustment 7. Circuit Operating Description 8. Troubleshooting 9. Block Diagram 10. Wiring Diagram 11. Schematic Diagrams © Samsung Electronics Co., Ltd. FEB. 2003 Printed in Korea AK82-00314A...
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. SOLDER LAND 2 POINTS SHORT PICK-UP ASS'Y Fig. 1-4 Samsung Electronics...
Page 8: Reference Information
Reflective layer Semi-reflective layer Polycarbonate Polycarbonate Dual Side Dual Layer : 17GByte Dual Side Single Layer : 9.5GByte Polycarbonate Polycarbonate Semi-reflective layer Reflective layer Reflective layer Bonding layer Bonding layer Reflective layer Reflective layer Semi-reflective layer Polycarbonate Polycarbonate Samsung Electronics...
Page 9 Read Only Multi-functional, multi-midia software that requires large storage capacity. DVD-Audio Playback Only High quality sound that exceeds the CD, multi-channel Audio. DVD-R 1 Time Recording Storage media for the computer. DVD-RAM Rewritable Data access/storage media for the computer. Samsung Electronics...
Page 10 Recording type Dolby Digital Linear PCM MPEG-1 Layer 2 AUDIO Transmission rate 448Kbps/stream 6.144Mbps/stream 224Kbps 1 Analog CH. Channel 5.1CH/stream 8CH/stream 1 Stream of Dolby Digital 2 Digital CH. (16Bit/44.1KHz) Sampling frequency 48KHz 16, 20, 24Bit/48, 96KHz 16Bit/44.1KHz Samsung Electronics...
Page 11 Data loss and enables Time efficient compression. Loss area ◆ MPEG-1 (Fixed compression : Max. 1/140) Amount of data ✓ Frame unit compression. ✓ Compresses all data using the same ratio. Video-CD - Fast movements are jagged, and unnatural Time Samsung Electronics...
Page 12 ✓ Various Digital Recordings are possible as shown in the table to the right. Sampling Frequency Bit Rate 16bit 48KHz 20bit 24bit 16bit 96KHz 20bit 24bit ◆ Dolby Digital compatible Audio Mode Channel Format Audio Coding Front Surround (Rear) Remark Mode Mono Stereo Mono Mono Surround Samsung Electronics...
Page 13 ◆ Up to 9 angles of view may be stored, enabling the viewer to select a specific viewpoint at a given time. --> Especially, for the Music Video and Sports Title, this provides a more lively image of the scene. Note ; Only enable to be worked correctly by an appropriate data supported this function in Disc. Samsung Electronics...
Page 14 ✓ Region 5 : Russia, Eastern Europe, India, Africa. ✓ Region 6 : China. ✓ Region 0 : Worldwide (All Code) ˆ Œ ´ Œ Ø ´ Œ ˇ ˆ ¨ ´ ¨ ◆ Adoptation of the Macrovision System disables the copying on to other media. Samsung Electronics...
Page 15 ✓ Different Authoring Process are used accoring to the Software developers, and this may affect the DVD image quality. ⌘ Authoring Process bit stream Video/Audio MPEG-2 Master Encoding Disc Production bit stream Video/Audio Surround Audio AC-3/MPEG Audio Cutting Subtitle Master Encoding Master Multiplexing bit stream Subtitle Subtitle Master Encoding Authoring Process Samsung Electronics...
Page 16: Product Specification
2 Channel : L(1/L), R(2/R) 2 Channel L(1/L), R(2/R) *Ferquency Response 48KHz Sampling : 4Hz to 22KHz 96KHz Sampling : 4Hz to 44KHz Audio Output *S/N Ratio 110dB *Dynamic Range 100dB *Total Harmonic Distortion 0.004% * : Nominal specification Samsung Electronics...
Page 17: Disassembly And Reassembly
Note : Reassembly in reverse order. 5-1-1 Top Cabinet Removal 1) Remove 3 Screws Œ on the back Top Cabinet. 2) Lift up the Top Cabinet in direction of arrow. Œ 3 SCREWS Fig. 5-1 Top Cabinet Removal Samsung Electronics...
Page 18 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. 5-2 Door-Tray Removal Samsung Electronics...
Page 19 1) Remove Knob-Volume Œ and Ass’y Front-Cabinet ´. 2) Remove Knob-Jog ˇ and 5 Screws ¨ and Key PCB ˆ. Œ 2 HOOKS ´ 1 HOOK ¨ 2 HOOKS ˇ 1 HOOK ˆ ASS'Y FRONT-CABINET Fig. 5-3 Ass’y Front-Cabinet Removal Samsung Electronics...
Page 20 1) Disconnect Flat-Cable,Connect-Wire from DCN1, DCN2 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 MAIN PCB DCN1 DCN2 DCN3 Fig. 5-4 Ass’y Deck Removal Samsung Electronics...
Page 21 2) Remove 2 Screws ´ and lift up the Jack PCB ˇ. 3) Remove 4 Screws ¨ and lift up the Main PCB ˆ. ´ 2 SCREWS ˇ JACK PCB ¨ 4 SCREWS ˆ MAIN PCB Œ 2 SCREWS Fig. 5-5 Main PCB, Jack PCB Removal Samsung Electronics...
Page 22: Pcb Location
Disassembly and Reaasembly 5-2 PCB Location JACK PCB MAIN PCB Fig. 5-6 PCB Location Samsung Electronics...
Page 23 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. 5-7 Tray Disc Removal Samsung Electronics...
Page 24 2) Lift down the Assy P/U Deck ˇ while simultaneously pushing 2 Hooks ¨, ˆ in the direction of arrow “A”, “B”. ¨ HOOK "A" "B" ˆ HOOK <Assembly Point> SLIDER HOUSING Œ DCN2 ˇ ASSY- P/U DECK ´ DCN3 Fig. 5-8 Assy P/U Deck Removal Samsung Electronics...
Page 25 5) Remove 2 Screws Ø and lift down the Motor Load Assy ∏. 6) Remove Clamper Ass’y ”. ´ HOOK "A" "B" Œ BELT ˆ SLIDER HOUSING ¨ GEAR TRAY ” CLAMPER ASSY ˇ PULLEY GEAR ∏ MOTOR LOAD ASSY Ø 2 SCREWS Fig. 5-9 Housing Ass’y Removal Samsung Electronics...
Page 26 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. 5-10 Sub Chassis Removal 5-10 Samsung Electronics...
Page 27 ¨ HOLDER CAM SKEW Ø PICK-UP ASS'Y ˆ SHAFT PICK-UP Ô MOTOR SPINDLE ” 2 SCREWS ´ GEAR FEED B ∏ GEAR FEED A ’ MOTOR FEED ASS'Y ˝ 3 SCREWS Œ HOOK "A" Fig. 5-11 Ass’y Brkt Deck Removal Samsung Electronics 5-11...
Page 28: Alignment And Adjustment
6. Alignment and Adjustment 6-1 Location od Test Point SKEW Fig. 6-1 Location of Test Point Samsung Electronics...
Page 29: Skew Adjustment
Adjustment Spec. Test Point Adjustment Location TDV-533 “ENV” Screw A / B Chapter 14 Flat Waveform (Main PCB - Component Side) Ass’y Deck - Bottom Side (See Fig. 6-1) (See Fig. 6-2) Fig. 6-2 Ass’y Deck (Top Side) Samsung Electronics...
Page 30 If you cannot obtain a Flat waveform, then the unit is defective. Note : The Deck must be in a horizontal position. Use both “A” and “B” screws to adjust. Typical Waveform before Adjustment Waveform after Correct Adjustment Fig. 6-3 Envelope Waveform Samsung Electronics...
Page 31: Circuit Operating Description
Input : Common power to transformer (Vp). Fig. 7-2 The output Vs of transformer is determined by the ratio of 1st Np and 2nd Ns. Vs = (Ns/Np) x Vp Fig. 7-3 Vout Vout is output (DC) by diode and condensor. Fig. 7-4 Samsung Electronics...
Page 32 Fig. 7-6 ◆ 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) Duty : (Ton/T) x 100 Samsung Electronics...
Page 33 Vb is inducted to base winding coil NB of PQR11. By inducted Vb, Ib start flow and the PQR11 is saturat- ed (S/W ON). Ib is constant and Ic increases in propotion to time. After constant time passed Ib become to shotage and PQR11 is cut OFF (S/W OFF). Fig. 7-8 Driving Circuit Samsung Electronics...
Page 34 Then : PICS2 Vs potential up over 2.5V --> PICS2 Vc down --> PICS1 A-K potential down --> PICS1 C-E current up --> PQR12 base current up --> PQR11 base current down --> Vout down --> Maintain 5.8V - PRD31, PRD32 : Reduce 5.8V overshoot. - PRS32, PCS32 : Prevent PICS2 oscillation (for phase correction). Samsung Electronics...
Page 35 Rectified Circuit Smoothing Circuit VoltageCircuit (x2) Motor 8V 1 Port Power TR Control Circuit Line Filter 8V Rectified 8V Rectified VoltageCircuit Voltage Smoothing Circuit Detection Circuit -8V Rectified -8V Rectified VoltageCircuit Smoothing Circuit Power IN (230V) Fig. 7-10 Samsung Electronics...
Page 36 It outputs to EQout (Pin 70) terminal by initially changing switching AMP gain of DVD and CD, and then adjust- ing the level in RF SUM & AGC. RF SUM and AGC is Contvolled by PWM Signal and pin 78~80. EQout Pin is Connected EQin. Samsung Electronics...
Page 37 The control parameters of DVD EQ and CD EQ are as follows. 1) DVD CD EQ control parameter Œ EQG : Changes the gain of peak frequency with EQ frequency characteristic. ´ EQF : Changes the peak frequency with EQ frequency characteristic. Samsung Electronics...
Page 38: Block Diagram
RIC1 SIC1 and DSP AIC1 RF AMP DIGITAL SERVO D/A CONVERTER (KS1463) (KS1455) (PCM1742) FIC1 ZIC1 FRONT MICOM MPEG DECODER (GMS81C2020) CPU (VADDIS5E) DATA BUS ZIC1 ZIC1 ADDRESS EEPROM FLASH MEMORY MICOM (KS24C020) 8 Mbit BLOCK Fig. 7-13 Samsung Electronics...
Page 39 Fig. 7-14 Servo Chip Access • CH1 : /DSPCS (ZIC1-123, DSP CHIP SELECT) • CH2 : /FLASHCS (ZIC1-126, FLASH CHIP SELECT) • CH3 : /WR 9ZIC1-129, MICOM OUTPUT WRITE SIGNAL) • CH4 : /RD (ZIC1-128, MICOM OUTPUT READ SIGNAL) Samsung Electronics...
Page 40 4) CLV SERVO (DISC Motor Control SERVO) : Controls the disc motor to maintain a constant linear velocity (necessary for RF signal). 7-4-2 Block Diagram RIC1 (S5L1463) DECK DISC DCN3 DCN1 LDCD PDCD to ZIC1 (Vaddis5E) 30 29 DCN2 From ZIC 124/25 SIC1 (S5L1455) VREF SIC3 (FAN8728) Fig. 7-15 7-10 Samsung Electronics...
Page 41 Meanwhile, DVD repeats the track jump from 1 to 4 in inner direction at normal play (because data- read speed from disc is faster than data output speed on screen). ´ For CD, VCD Receive the signal output through E, F of Pick-up, from RIC1. The tracking error signal is similar to DVD. Samsung Electronics 7-11...
Page 42 If the existing track count is within fine seek range, tracking begins using fine seek. 4) CLV SERVO(DISC MOTOR CONTROL SERVO) Input RF signal (from Pick-up) to SIC1 pin 152. Detect SYNC signal from RF in SIC1, and output PWM signal to SIC1 pin 28 for constant linear velocity. 7-12 Samsung Electronics...
Page 43 & Digital Servo RSTB & FIC1 SCLK /FLASHCS /DSPCS (GMS81C2020) D(15..0) Front Panel SIC2 A(8..0) Controller 4Mbit /RAS MEMAD(19..0) /DSPCS /LCAS MEMAD(15..0) /UCAS DRAM MEMAD0 27MHz MEMDA(7..0) /FLASHCS 33.8688MHz ZIC3 Flash Memory MEMAD(19..0) 8Mbit MEMDA(15..0) Fig. 7-17 Samsung Electronics 7-13...
Page 44 It measures the timing that data processed in SIC1 at DVD playback. Fig. 7-18 • CH1 : STROBE (SIC1-123, CLOCK) • CH2 : REQ (SIC1-124, DATA REQUEST) • CH3 : DACK (SIC1-125, DATA ACKNOWLEDGE) • CH4 : SDATA (SIC1-126~133, SDATA) 7-14 Samsung Electronics...
Page 45 B(BLUE) and G(GREEN) are selectively outputted CVBS +S_VIDEO, RGB/Component by the rear switch. In Course of encoding, 8bit data can extend to 10bit or more. To convert the extended data to quantization noise as possible, ZIC1 adopts 10bit D/A converter. ZIC1 perform video en-coding as well as copy protection. Samsung Electronics 7-15...
Page 46 CVBS, Y, C, R, G, B outputted from video encoder are inputted to VIC1 (Pin 2, 8, 6, 16, 11, 14). The signal to which gain is adjusted by amplifier is outputted from jack via 75ohm Resistance (VR11~VR16). 7-16 Samsung Electronics...
Page 47 If you want to listen to the multichannel output, you have to connect digital output with AC-3 amp or MPEG/DTS amp. Mixed Audio Output (2-Channel) DATA0 ZIC1 AIC1 POST FILTER LRCK (Vaddis 5E) PCM1742KE A/V Decoder D/A CONVERTER POST FILTER Fig. 7-20 Audio Output Block Diagram Samsung Electronics 7-17...
Page 48 The 2 channels data is converted through audio decoder 2-channel data and Data 0 and 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. 7-18 Samsung Electronics...
Page 49 8. Troubleshooting Samsung Electronics...
Page 50 Troubleshooting Samsung Electronics...
Page 51 Troubleshooting Samsung Electronics...
Page 52 Troubleshooting Samsung Electronics...
Page 53 Troubleshooting Samsung Electronics...
Page 54 Troubleshooting Samsung Electronics...
Page 55 Troubleshooting Samsung Electronics...
Page 56 Actuator & Motor Driver SCIC1 (MM1647) Scart SIC1 SIC2 CVBS/Y (KS1455) Decoder EDO RAM Servo + DSP AC3 & RGB/C MPEG 5.1 VIC1 CVBS (LA73054) SCIC3 Video MM1501 CVBS 6dB AMP Encoder Post (4DAC) Filter Yout 6dB AMP Cout Samsung Electronics...
Page 57: Wiring Diagram
10. Wiring Diagram Samsung Electronics 10-1...
Page 58: Schematic Diagrams
11-6 Audio - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-7 Main PCB (Component Side) Jack PCB (Conductor Side) Samsung Electronics 11-1...
Page 59: Schematic Diagrams
Schematic Diagrams 11-1 Power 11-2 Samsung Electronics...
Page 60: Av-Decoder/Main-Micom/Key
Schematic Diagrams 11-2 AV-Decoder/Main-Micom/Key (OPTOIN) Samsung Electronics 11-3...
Page 61: Servo
Schematic Diagrams 11-3 Servo 11-4 Samsung Electronics...
Page 62: Front-Micom/Vfd Display
Schematic Diagrams 11-4 Front-Micom/VFD Display Samsung Electronics 11-5...
Page 63: Video
Schematic Diagrams 11-5 Video 11-6 Samsung Electronics...
Page 64: Audio
Schematic Diagrams 11-6 Audio Samsung Electronics 11-7...

Samsung DVD-E234 Manual

Quick Links

DVD PLAYER

Related Manuals for Samsung DVD-E234

Summary of Contents for Samsung DVD-E234

Table of Contents