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...
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(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...
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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...
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3) Disassemble the deck. 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. TO MAIN PCB (DCN1) Fig. 1-4 Samsung Electronics...
Parallel/Serial Control Mode Select Input. If Low, the Serial Control Mode is implemented. If High, the Parallel Control Mode is selected. This pin has an internal pull-up. CKS0 Master Clock Select #0. CKS1 Master Clock Select #1. CKS2 Master Clock Select #2. Samsung Electronics...
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Reference Information 2-1-2 DIC1 (KS1453 ; Data Processor) Samsung Electronics...
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Reference Information Samsung Electronics...
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Reference Information Samsung Electronics...
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Reference Information 2-1-5 MIC2 (M27C801 ; 8Mbit (1Mbx8) UVEPROM and OTP EPROM) LOGIC DIAGRAM A0-A19 A0-Q7 GVpp TOP VIEW FUNCTION NAME A0-A19 Address Inputs Data Outputs Q0-Q7 Chip Enable Output Enable/Program Supply OVpp Supply Voltage Ground Samsung Electronics...
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TOP VIEW SYMBOL DESCRIPTION Address Inputs A0 - A14 Data Inputs/Outputs I/O1 - I/O8 Chip Select Input Write Enable Input 28-pin Output Enable Input V DD Power Supply I/O8 V SS Ground I/O1 I/O7 I/O2 I/O6 I/O3 I/O5 I/O4 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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Reference Information 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 2-21...
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Reference Information MEMO 2-22 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. 4-1 Top Cabinet Removal Samsung Electronics...
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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. 4-2 Door-Tray Removal Samsung Electronics...
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(1) When disassembling, switch the SW3 to “OFF” on the Deck PCB and remove the FPC connected to DCN1 on Main PCB. (2) When assembling, insert the FPC into the DCN1 on Main PCB and switch SW3 to “ON” on the Deck PCB. Œ 3 SCREWS DECK-ASS'Y MAIN PCB DCN1 Fig. 4-4 Ass’y Deck Removal Samsung Electronics...
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2) Remove 2 Screws ´ and lift up the Jack PCB ˇ. 3) Remove 3 Screws ¨ and lift up the Main PCB ˆ. ´ 2 SCREWS ˇ JACK PCB ¨ 3 SCREWS ˆ MAIN PCB Œ 1 SCREW Fig. 4-5 Main PCB, Jack PCB Removal Samsung Electronics...
Disassembly and Reaasembly 4-2 PCB Location JACK PCB MAIN PCB KEY PCB Fig. 4-6 PCB Location Samsung Electronics...
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KEY PCB CONNECTOR NO. DIRECTION CONNECTOR NO. Œ ´ CON21 KEY PCB JACK PCB ˇ ¨ PCNS1 JACK PCB MAIN PCB PCN1 ˆ Ø DECK-ASS'Y MAIN PCB DCN1 ∏ ” JACK PCB MAIN PCB Fig. 4-7 Connector Diagram Samsung Electronics...
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5) Push the Hook ” in the direction of arrow “A” and lift up the Ass’y P/U Deck ’ in direction of arrow “B”. ˆ 1 SCREW Œ SLED+/SLED- ´ TM+/TM- ¨ CN2 Ø DECK PCB ˇ CN3 ’ ASS'Y P/U DECK ∏ 1 SCREW "B" <Assembly Point> "A" ” HOOK Fig. 4-8 PCB Deck Ass’y and Ass’y P/U Deck Removal Samsung Electronics...
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3) Pull the Tray Disc ¨ to disassemble , while simultaneously pushing 2 Stoppers ˆ (left, right) in the direction arrow “C”, “D”. ˆ STOPPER "C" "A" "D" ¨ TRAY DISC "B" ˇ SLIDER HOUSING ˆ STOPPER Œ SCREW DRIVER ´ EMERGENCY HOLE Fig. 4-9 Tray Disc Removal Samsung Electronics...
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Disassembly and Reaasembly 4-4-3 Slider Housing Removal 1) Push the Slider Housing Œ in the direction arrow “A”. 2) Lift up the Slider Housing Œ. Œ SLIDER HOUSING "A" Assembly PUSH Fig. 4-10 Slider Housing 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 PDF13 and smooth to PEF12. ˇ Use the output of transformer as PICF1 Vcc : The loads are different before and after PICF1 driving. (Vcc of PICF1 decreases below OFF voltage, using only the resistance due to load increase after PICF1 driving.) Samsung Electronics...
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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 maintains 5.8V). Œ PRD31, PRD32 : Reduce 5.8V overshoot ´ PRS32, PCS32 : Prevent PICS2 oscillation(for phase correction) Samsung Electronics...
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Voltage Smoothing Circuit Detection Circuit -8V Rectified -8V Rectified VoltageCircuit Smoothing Circuit Power IN (85~265V) Fig. 5-9 5-1-3 (b) PICF1 (STR-G6551) Internal Block Diagram V I N DRIVE START O.V.P LATCH REG. T.S.D Comp O.S.C O.C.P/ Fig. 5-10 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...
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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). 5-4-2 Block Diagram DISC Fig. 5-17 Samsung Electronics 5-11...
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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. 5-12 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 pin 59. Detect SYNC signal from RF in SIC1, and output PWM signal to SIC1 pin 55 for constant linear velocity. Samsung Electronics 5-13...
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It measures the timing that data processed in DIC1 at DVD playback. STROBE DACK SDATA all Fig. 5-20 • CH1 : STROBE (DIC1-69, CLOCK) • CH2 : REQ (DIC1-70, DATA REQUEST) • CH3 : DACK (DIC1-58, DATA ACKNOWLEDGE) • CH4 : SDATA (DIC1-60~67, DATA) Samsung Electronics 5-15...
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Pin 9, Pin 12, Pin 14 of VIC1, VIC2 are feedback pin to SAG compensation (DC characteristic compensation of siganl). The signal to which gain is adjusted by amplifier is outputted from jack via 75ohm Resistance (VR10~VR13, VR22~24). 5-16 Samsung Electronics...
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SCQ15, SCQ16 are for RGB control and controlled by FIC1 (Pin 91). DVD_Y CVBS/Y_TV_OUT SCIC3 SCIC4 R/C_TV_OUT SCJ1 (14053) (NJM2267) G_TV_OUT Switch Amplifier DVD_CVBS B_TV_OUT DVD_R/C R/C_TV_OUT SCIC6 G_TV_OUT DVD_G (BA7660) B_TV_OUT Amplifier DVD_B Fig. 5-22 1 Scart Output Block Diagrsm Samsung Electronics 5-17...
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Data 3. At that time, 5.1 channel can be downmixed in 2 channel in Data 0. Mixed Audio Output (2-Channel) ZIC1 DATA0 POST AIC1 (ZiVA4.1) FILTER LRCK AK4324 A/V Decoder POST D/A CONVERTER FILTER Fig. 5-23 Audio Output Block Diagram 5-18 Samsung Electronics...
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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. Samsung Electronics 5-19...