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...
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(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...
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...
(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...
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...
SW3 on Deck PCB to “ON”. (See Fig 1-4) 4) Disassemble the Deck PCB. Note : If the assembly and disassembly are not done in correct sequence, the Pick-up may be damaged. Flat-Cable To Main Front PCB (CN6) Fig. 1-4 Samsung Electronics...
= Address Inputs PGM# (P#) CE# (E#) = Chip Enable Input DQ0—DQ7 = Data Input/Outputs OE# (G#) = Output Enable Input PGM# (P#) = Program Enable Input Supply Voltage = Program Voltage Input OE# (G#) = Ground CE# (E#) Samsung Electronics...
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A0-A19 Address Inputs Q0-Q7 Data Outputs Q8-Q14 Data Outputs Q15A—1 Data Output / Address Input Chip Enable Output Enable BYTEV Byte Mode / Program Supply M27C160 BYTEV PP Supply Voltage V SS V SS Q15A-1 Ground V CC Samsung Electronics...
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Timer 0 Port 8 Timer 1 Port 2 Port 3 Port 4 INT0-3 Noise Filter Port 5 PWM 1 Real Time Service XRAM Stack Pointer (128 bytes) VFD Controller PORT 0 Watch Dog Timer High Voltage Output 2-10 Samsung Electronics...
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Reference Information Samsung Electronics 2-11...
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DEFECT ing Level for Servo Defect output terminal for Servo DFCT1 DEFECT DSSP Defect output terminal for PLL DFCT2 DEFECT Power voltage input terminal for DPD TE DPDVCC Mirror output terminal MIRR MIRR DSSP BCA output terminal Samsung Electronics 2-13...
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Reference Information 2-1-9 SIC1 (KS1452 ; Servo Processor) DIRC SSTOP/PS0 SMON LOCK DFCT FOKB MIRR TZCA PHI1 XOUT TEST RSTB TILTO TILTI 2-14 Samsung Electronics...
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Reference Information Samsung Electronics 2-15...
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Output current control voltage Hall signal (H1+) Power save (Start/Stop switch) Hall signal (H1-) FG waveform Hall signal (H2+) Supply voltage (Signal) Hall signal (H2-) Supply voltage (Motor) Hall signal (H3+) Supply voltage (Motor) Hall signal (H3-) Output current detection 2-16 Samsung Electronics...
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Communication Bus Video Time CCIR MPE1 MPE2 MPE3 MPE0 Base and Display Generator Main Bus Other Bus System Bus Interface Other Bus DMA MPEG Hardware Main Bus Arbitration, DMA, and Arbitration Assist and SDRAM Interface System Bus SDRAM 2-18 Samsung Electronics...
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SYSGPCS_B [1] CEANAB Coded Data SYSBR_B CASTROBE SYSBG_B CASDATA SYSBB_B CVERRFLG SYSCS_B CACLK SYSRW CAREQ SYSBCLK CVTOP SYS_RDY_B CP_CLK RESET CP_DOUT [2:1] PLL_CLKI Controllers Global CP_DIN [2:1] PLL_REF CP_ENA_B TEST GPIO [15:0] General I/O Test Mode TEST_CLK [4:0] Samsung Electronics 2-19...
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Reference Information 2-20 Samsung Electronics...
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Power and ground for the input buffers and the core logic. Isolated power supply and ground for the output buffers to provide improved noise Data output power/ground immunity. No connection N.C/RFU This pin is recommended to be left No Connection on the device. /reserved for future use Samsung Electronics 2-23...
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RCV1 Raster Contral 1 for video port. This pin receives/provides a VS/FS/FSEQ signal. Raster Contral 2 for video port. This pin provides an HS pulse of programmable length or receives I / O RCV2 an HS pulse. 2-24 Samsung Electronics...
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The 12C-bus receiver waits for the START condition. S C L 12C serial clock input S D A I / O 12C serial data input/output TTXRQ Teletext Request output, indicating when text bits are requested T T X Teletext bit stream input Samsung Electronics 2-25...
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4 ma output careq Supply Cmos Input 5 Volt Tolerant sData6 Cmos Input 5 Volt Tolerant dter 4 ma output casdata Supply Cmos Input 5 Volt Tolerant sel_cdi 4 ma output rrq0 srq0 Cmos Input 5 Volt Tolerant 2-26 Samsung Electronics...
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6 ma tristate IO buffer Cmos input sysDataIO7 6 ma tristate IO buffer Cmos input sysDataIO6 6 ma tristate IO buffer Cmos input sysDataIO5 6 ma tristate IO buffer Cmos input sysDataIO4 6 ma tristate IO buffer Cmos input sysDataIO3 Samsung Electronics 2-27...
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Reference Information MEMO 2-28 Samsung Electronics...
48KHz Sampling : 4Hz to 22 KHz * Frequency Response 96KHz Sampling : 4Hz to 44KHz * S/N Ratio 110dB * Dynamic Range 92dB * Total Harmonic Distortion 0.003% (In case of 1 KHz) * : Nominal specification Samsung Electronics...
Note : If Tray Œ doesn’t 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 “B”. Open Tray manually. Œ TRAY ´ DOOR-TRAY "A" ˇ EMERGENCY HOLE "B" ¨ SCREW DRIVER <Bottom View> Fig. 4-1 Door-Tray Removal Samsung Electronics...
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. 4-2 Top Cabinet Removal Samsung Electronics...
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Œ 2 SCREWS ˆ BRACKET-PHONE Ø KEY POWER PCB ’ 4 SCREWS ˝ KEY PLAY PCB ˇ KNOB-VOLUME ´ ASS'Y FRONT CABINET ” KNOB-SUHTTLE ∏ KNOB -JOG Fig. 4-3 Ass’y Front Cabinet, Key Power PCB, Key Play PCB Removal Samsung Electronics...
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3) Remove 4 Screws ¨ and lift up the Main Front PCB ˆ, Main Back PCB Ø. Œ 4 SCREWS ˇ JACK PCB ¨ 4 SCREWS Ø MAIN FRONT PCB ˆ MAIN FRONT PCB ´ 2 SCREWS Fig. 4-4 Main Front/Back PCB, Jack PCB Removal Samsung Electronics...
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Disassembly/Reaasembly 4-1-5 Ass’y Deck Removal 1) Remove 4 Screws Œ from the Ass’y Deck and lift it up. Œ 4 SCREWS Fig. 4-5 Ass’y Deck Removal Samsung Electronics...
MAIN BACK PCB MAIN FRONT PCB Ô DECK PCB MAIN FRONT PCB MAIN FRONT PCB DECK PCB Ò CN102 KEY POWER PCB JACK PCB CN17 Ú CN17 JACK PCB KEY POWER PCB CN102 Fig. 4-7 Connector Diagram Samsung Electronics...
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3) Pull the Tray Ø to disassemble, while simultaneously pushing the Hook ∏, ” in direction of arrow “A”, “B”. Œ 2 SCREWS ´ COVER SHEET ˇ ASS'Y - DECK CLAMPER ∏ HOOK "C" "B" "D" ” HOOK Ø TRAY ˆ SCREW DRIVER "A" ¨ EMERGENCY HOLE <Bottom View> Fig. 4-8 Tray Removal Samsung Electronics...
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2) Disassemble the Ass’y-Deck Sub ¨ in direction of arrow “B”, while simultaneously pushing the Hook ˇ in direction of arrow “A”. ¨ ASS'Y - DECK SUB "B" "A" ˇ HOOK ´ ASS'Y - PCB DECK Œ 2 SCREWS Fig. 4-9 Ass’y-Deck Sub Removal Samsung Electronics...
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ALIGN TWO ARROWS ’ GEAR - CAM SUB Æ GEAR - SYNCRO Ú SHAFT - SYNCRO Æ GEAR - SYNCRO Ò LEVER - OPEN S/W 1 SCREW Ô ASS'Y - MOTOR LOAD Fig. 4-10 Chassis-Main Parts Removal 4-10 Samsung Electronics...
Input : Common power to transformer (Vp). Fig. 5-2 The output Vs of transformer is determined by the ratio of 1st Np and 2nd Ns. Vs = (Ns/Np) x Vp Fig. 5-3 Vout Vout is output (DC) by diode and condensor. Fig. 5-4 Samsung Electronics...
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Fig. 5-6 ◆ 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...
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´ Rectify to PD12 and smooth to PE6. ˇ Use the output of transformer as PIC1 Vcc : The loads are different before and after PIC1 driving. (Vcc of PIC1 decreases below OFF voltage, using only the resistance due to load increase after PIC1 driving.) Samsung Electronics...
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Reverse sequence of the above description --> Duty down --> Vout down --> Maintain 5.8V (i.e., the feedback to maintains 5.8V). Œ PR35, PR36 : Reduce 5.8V overshoot ´ PR37, PC44 : Prevent PIC3 oscillation(for phase correction) ˇ PC09 : Adjust feedback response rate Samsung Electronics...
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 (85~265V) Fig. 5-9 Samsung Electronics...
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RF SUM & AGC. It controls RF SUM & AGC gain by means of Pin 89-95 and interfaces with PWM signal, (output from PWM terminal of KS1453, via low-pass filter to adjust boost gain and peak frequency. Samsung Electronics...
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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. Samsung Electronics...
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. 5-10 Samsung Electronics...
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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 pin59. Detect SYNC signal from RF in SIC1, and output PWM signal to SIC1 pin 55 for constant linear velocity. Samsung Electronics 5-11...
VCLK NIC13 CRYSTAL (PLL1700) SDATA[7..0] CVDATA[7..0] NIC1 EFMI NIC16.17 PLCK CSTROBE X CVCLK ARIES1.1 PLCK BUFFER DACK X CVENAB DIC1 (MMP-L3BZP) DATREQ X CVREQ (KS1453) X CAREQ NIC7 DTER X CASDATA 8.11 (KS999) SDATA3.6 SEL-CDI Fig. 5-15 5-12 Samsung Electronics...
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Video signal converted into analog signal is outputted via amplifier of analog part. (Main Board) (Output Board) CVBS-1 Video NIC1 CVBS-2 data VIC52 A/V Decoder Amplifier XCMMP-L3BZP Control BA7660 VIC50 SAA7128 Video encoder VIC51 Amplifier BA7660 Fig. 5-16 Video Output Block Diagram Samsung Electronics 5-13...
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13). Pin9, Pin12 and Pin14 of VIC51 and VIC52 are feedback pin to SAG compensation(DC characteristic compen- sation of signal). Resistance(VR3-VR14) which is inserted to input terminal is bias resistance for input offset. The signal to which gain is adjusted by amplifier is outputted from jack via 75ohm. 5-14 Samsung Electronics...
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D/A CONVERTER FRONT-R FILTER NIC1 XCMMP-L3BZP A/V Decoder DATA1 POST AIC3 SURROUND-L FILTER AK4324 POST D/A CONVERTER SURROUND-R FILTER DATA2 POST AIC4 CENTER FILTER AK4324 POST D/A CONVERTER SUB WOOFER FILTER Fig. 5-18 Audio Output Block Diagram Samsung Electronics 5-15...
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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. 5-16 Samsung Electronics...
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