COLOR TELEVISION RECEIVER Chassis : Model : COLOR TELEVISION RECEIVER KS2A(N) CL766DW7X/XAP CL766DW7X/XAX CL766DW7X/RCL CL765DW7X/DRI CONTENTS 1. Precautions 2. Reference Information 3. Specifications 4. Alignment and Adjustments 5. Troubleshooting 6. Exploded Views and Parts List 7. Electrical Parts List 8. Block Diagrams 9. Wiring Diagram 10.
ELECTRONICS © Samsung Electronics Co., Ltd. OCT.
Precautions 1. Precautions Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays. 1-1 Safety Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including: nonmetallic control knobs and compartment covers. 3.
Precautions 1-1 Safety Precautions (Continued) 9. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components. 10. Design Alteration Warning: Never alter or add to the mechanical or electrical design of this unit. Example: Do not add auxiliary audio or video connectors. Such alterations might create a safety hazard.
Precautions 1-2 Servicing Precautions Warning1: First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precautions. Warning2: An electrolytic capacitor installed with the wrong polarity might explode. 1. Servicing precautions are printed on the cabinet. Follow them. 2.
Precautions 1-3 Precautions for Electrostatically Sensitive Devices (ESDs) 1. Some semiconductor (“solid state”) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damage caused by static electricity. 2.
Reference Information 2.
Reference Information Table 2-2 Table of Acronyms ABL AC ACC AF AFC AFT AGC AM ANSI APC APC A/V AVC BAL BPF B-Y CATV CB CCD CCTV Ch CRT CW DC DVM EIA ESD ESD FBP FBT FF FM FS GND G-Y H HF HI-FI IC IC IF 2-2 Automatic Brightness Limiter Alternating Current Automatic Chroma Control Audio Frequency Automatic Frequency Control Automatic Fine Tuning Automatic Gain Control Amplitude Modulation American National Standards Institute Automatic Phase Control Automatic Picture Control Audio-Video Automatic Volume C
Reference Information 2-2 IC Line Up Table 2 - 3 IC Line - Up NO 1 BOARD MAIN LOC.
Reference Information Table 2 - 3 IC Line - Up NO BOARD LOC. NO SPEC DESCRIPTION REMARK IC501 IC502 CRT TDA6101Q Video Output AMP R.G.
Specifications 3. Specifications Television System Multi Antena Input Consumption Power Requirements Frequency NTSC-M, PAL N.
MEMO 3-2 Samsung Electronics
Alignment and Adjustments 4. Alignment and Adjustments 4-1 General Alignment Instructions 1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus. 5. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test results. 2. Observe the picture for good black and white details.
Alignment and Adjustments 4-4 FOCUS Adjustment 1. Input a black and white signal. 2. Adjust the tuning control for the clearest picture. 3. Adjust the FOCUS control for well defined scanning lines in the center area of the screen. 4-5 SCREEN Adjustment 1. Input Toshiba Pattern 2. Enter “Service Mode”.(Refer to “4-8-1 Service Mode”) 3. Select “G2-Adjust”. 4. Set the values as below. Table 1.
Alignment and Adjustments 4-6 E2PROM (IC902) Replacement 1. When IC902 is replaced, all adjustment data revert to the initial values. So, all adjustment values when servicing should be readjusted. 2. After IC902 is replaced, connect the AC power supply cord. 3. Turn the power switch ON. 4. In stand-by, warm up the TV for at least 10 seconds. 5. Power on the TV. 4-7 White Balance Adjustment ■ Equipment : Color-Analyzer (CA-100) ■ Input Signal : Pattern signal (Toshiba pattern) 1.
Alignment and Adjustments 4-8 Factory Adjustment 4-8-1 Service Mode 1. To enter the “Service Mode”, Press the remote-control keys in this sequence : - If you do not have Factory remote-control PICTURE OFF MUTE 1,8,2 PICTURE ON - If you have Factory remote-control PICTURE ON DISPLAY ( ) FACTORY 2. After the Service Mode is entered, the initial screen is as shown in the figure below. xx xx xx * These hexa digits are check sum value which * depends on the MICOM version.
Alignment and Adjustments SIM-408A USA,LATIN FACTORY (VDP IC VDP3108B) 4-8-2 Deflection (Memory Data) - SIM408A USA, LATIN FACTORY (VDP IC VDP3108B) 4-8-2(A) GEOMETRIC ADJUSTMENT VALUE INCH 27V 1.3R Model DEFLECTION H Bow H Angle H Dscc V SHIFT V AMP V SLOPE V SC H EW H TRAPEZIUM H PARABOLA H SYMMETRY H CORNER H SHIFT PIP CONTRAST PIP TINT PIP PAL V.POS PIP NTSC V.POS PIP H.
Alignment and Adjustments 4-8-2(B) SCREEN CHANGE (I2C BUS GEOMETRIC ADJUSTMENT) 1 V Shift 6 V Amp 2 V Slope 7 V SC 3 H EW 8 H Trapizium 4 H Parabola 9 H Symmetry 5 H Corner 10 H Shift 4-6 Samsung Electronics
15 4 H CORNER H SHIFT PIP CONTRAST PIP TINT PIP PAL V.POS PIP NTSC V.POS PIP H.POS Control Control FIX FIX FIX FIX FIX 0 0 0 0 12 12 12 69 8 0 0 12 12 12 69(FIX) 13 0 0 12 12 12 69(FIX) 13 0 0 12 12 12 69(FIX) 69(FIX) 4 13 0 0 0 0 12 12 Alignment and Adjustments 12 12 12 12 4-8-2(C) VIDEO ADJUST 1 INCH 27V 1.3R Model VIDEO ADJUST1 RED CUT OFF GREEN CUT OFF BLUE CUT OFF RED DRIVE GREEN DRIVE BLUE DRIVE SUB BRIGHT SUB CONTRAST SUB COLOR SUB TINT BCL THRESHOLD BCLGAIN BCL TIME DVD SUB TINT N.
13 90 0 BCL TIME DVD SUB TINT N. YC DELAY FIX FIX FIX 10 100 3 10 100 3 10 100 3 27V 1.3R 23V 1.
MODULATION ON/OFF 0 FIX 0 0 VIDEO ADJUST3 0 INIT A TILT POINT FIX 0 0 PEAK WHITE LIMLT 255 FIX 255 B TILT POINT 0 FIX 114 114 255 SOFT LIMIT SLOPE B FIX 11 4 11 4 GAIN 1 (VIDEO) FIX4 LIMIT 255 FIX 3 255 3 255 DELAY 1HARD (VIDEO) FIX MODULATION ON/OFF FIX0 FIX 0 0 0 0 PEAK VIDEO REF A TILT POINT FIX 0 0 0 0 PEAK VIDEO GAIN FIX0 B TILT POINT FIX 74 114 74 114 LIMIT VALUE FIX0 Note 2.
Alignment and Adjustments SIM-408A USA,LATIN FACTORY (VDP IC VDP3130Y) 4-8-3 Deflection (Memory Data) SIM-408A USA,LATIN (VDP FACTORY (VDP IC VDP3130Y) - SIM408A USA, LATIN FACTORY IC VDP3130Y) 4-8-3(A) GEOMETRIC ADJUSTMENT VALUE INCH INCH MODEL INCH MODEL INIT MODELINIT INIT DEFLECTION HDEFLECTION Bow DEFLECTION Bow HH Angle HHBow Angle H Dscc HHAngle Dscc V SHIFT HV Dscc SHIFT V AMP VVSHIFT AMP V SLOPE VVAMP SLOPE VVSLOPE SC HE VHSC EW H TRAPEZIUM HHETRAPEZIUM W H PARABOLA HHTRAPEZIUM PARABOLA H SYMMET
Alignment and Adjustments 4-8-2(C) VIDEO 2 ADJUST INCH INCH Model INCH Model VIDEO ADJUST2 INIT Model INIT ADJUST2 BVIDEO STRETCH-BTHR ADJUST2 INIT B DTRETCH-BTLT STRETCH-BTHR 50 BVIDEO BBB STERTCH-BAM STRETCH-BTHR 508 DTRETCH-BTLT STERTCH-BAM BB DTRETCH-BTLT 84 CORING CORING 31 BNTSC STERTCH-BAM 4 COMB FILTER NTSC COMB FILTER CORING 311 RGB BRIGHT RGBB BRIGHT NTSC COMB FILTER 10 RG CONTRAST RG B CONTRAST 0 RGB BRIGHT 0 EHT TIME 0 EHT TIME RG B CONTRAST 0 EHT VERTICAL 60 EHT VERTICAL EHT TIME 0 DTI CORING
Alignment and Adjustments 4-8-3(E) OTHERS INCH INCH Model INCH Model OTHERS INIT Model INIT OTHERS VSU 108 FIX OTHERS INIT VSU2 0 FIX VSU 108 FIX H QE W 0 FIX VSU2 0 FIX QE Parabola HHZOOM 8 FIX W 0 FIX H QE ZOOM Parabola HH16:9 Parabola -10 FIX H ZOOM Parabola 8 FIX H 16:9 Parabola DVD TINT CONTROL 1 FIX -10 FIX H 16:9 Parabola DVD TINT CONTROL PAL V SHIFT FIXFIX DVD TINT CONTROL 1 PALHVSHIFT SHIFT PAL FIXFIX PAL V SHIFT PAL H SHIFT Melidy 5 FIXFIX PAL HVolume SHIFT Melidy Volume PIP BRIGHT Melidy Volume
Alignment and Adjustments 4-9 MICOM 4-9-1 Pin Layout Write Protect EEPROM SDA EEPROM SCL Bus-Stop Main SDA Main SCL Sound Reset Video Reset VDD 2.5V GND VDD 3.3V CVBS Input VDD 2.
Alignment and Adjustments 4-9-2 Pin Assignment Specification PIN NO FUNCTION ASSIGN IN/OUT ACTIVE H/L Out Low DESCRIPTION 1 I/O Write Protect 2 I/O ROM SDA I/O EEPROM Serial Data Line 3 I/O ROM SCL I/O EEPROM Serial Clock Line 4 I/O Bus Stop In 5 I/O Main SDA I/O 6 I/O Main SCL I/O Low Peripheral IC Serial Clock Line 7 I/O Sound Reset Out Low MSP IC Initial Control 8 I/O Video Reset Out VDP IC Initial Control 9 Vdd VDD 2.5V 10 GND 11 Vdd VDD 3.
Alignment and Adjustments 4-9-2 Pin Assignment Specification (Continued) PIN NO FUNCTION ASSIGN IN/OUT ACTIVE H/L Out Low DESCRIPTION 27 I/O 28 N.C. Not Used (Programmed Gound Level) 29 GND Analog Ground 30 Vdd 31 N.C. Not Used (Programmed Gound Level) 32 N.C. Micom Hardware Reset 33 Reset Reset In Low Crystal Oscillation Input 34 X-In X-TAL In In 6MHz Crystal Oscillation Output 35 X-Out X-TAL Out Out 6MHz Analog Ground 36 GND 37 Vdd VDD 2.
MEMO 4-16 Samsung Electronics
Troubleshooting 5.
Troubleshooting 5-2 No Raster (Sound OK) No Raster (Sound OK) Check Fusible Resistance Check the fusible resistance of abnormal volatge line Abnormal Abnormal Check voltage of heater Normal Check Abnormal RK,GK,BK Signal output from CRT PCB Normal Abnormal Check CRT and FBT Abnormal Check the signal output from IC201 Pin 63 Normal Check / Replace IC201 5-2 Check R.G.B Signal input to CRT PCB Abnormal Check tuner B+ and Main CVBS Check R.G.
Troubleshooting 5-3 No Sound No Sound Normal Check Speaker and Wire Normal Check the signal output from CN601, 602 Pins Abnormal Abnormal Check the signal input to IC602 pins 4 ,12 Normal Check the signal input to IC601 Pin 47 Check IC602 B+ Abnormal Abnormal Normal Check IC601 B+ Check tuner B+ and SIF Check/Replace the resistance of FD802 Normal Replace IC602 Abnormal Check/Replace IC601 Samsung Electronics Check B+ Line (8V) 5-3
Troubleshooting 5-4 Horizontal Lines Appear on screen Horizontal Lines Apper on screen Normal Normal Check the VDP Signal output from IC201 Pin 31 Check IC301 B+ (16V, -16V) Abnormal Check B+ Line and the fusible resistance of R425, 424 Abnormal Check/Replace IC301 5-4 Check IC201 Samsung Electronics
Exploded View & Parts List 6. Exploded View & Parts List 6-1 CL765DW7X/DRI Samsung Electronics No Code No Description Specification Q’ty 1 AA64-00268R CABINET FRONT “;765D,S704P KS2A SPB,HIPS,H 1 1-1 AA64-70117B BADGE-BRAND ;AL,SS,SILVER,L65,R2000,-,- 1 1-2 AA64-40479B WINDOW-REMOCON ;-,765D,-,PC,V0,VIOLET,- 1 1-3 AA64-10740D KNOB-POWER ;-,765D,G3676 NO-SILK,ABS,HB,H 1 1-4 AA61-60003M SPRING-CS ;-,SUS304,0.6,OD11.
Electrical Parts List 7. Electrical Parts List 7-1 CL766DW7X/XAP (CL766DW7X/XAP and CL766DW7X/RCL Dissimilar Parts) Level Loc. No. Code No. Description ; Specification Remark ASSY-CABINET,(COM) Level Loc. No. Code No. Description ; Specification Remark ASSY-ACCESSORY * AA92-00434AASSY-CABINET,(COM);KS2A,CL765/6,BP.
Electrical Parts List 7-3 CL766DW7X/RCL Level Loc. No. Code No.
Electrical Parts List Level Loc. No. Code No.
Electrical Parts List Level Loc. No. Code No.
Electrical Parts List Level Loc. No. Code No.
Electrical Parts List Level Loc. No. Code No.
Electrical Parts List 7-4 CL765DW7X/DRI Level Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(OPT) 1 ..2 ..2 ..2 ..2 ...3 ...3 ...3 ...3 ...3 ...3 ..2 ...3 ...3 ...3 ...3 ...3 ...3 ..2 ...3 ...3 ...3 ...3 ..2 ...3 ...3 ...3 ...3 ...3 ..2 ...3 ...3 ...3 ...3 ..2 ..2 ..2 ..2 ..2 ..2 ..2 ..2 ..2 ..2 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ...3 ....4 ....4 ....4 ....4 ...3 ...3 ...3 ...3 ...3 ...3 ...
Electrical Parts List Level Loc. No. Code No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....
Electrical Parts List Level Loc. No. Code No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....
Electrical Parts List Level Loc. No. Code No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....
Electrical Parts List Level Loc. No. Code No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ..2 ..2 ..2 ..2 ..2 ..
Electrical Parts List Level Loc. No. Code No. ..2 ..2 ..2 ..2 ..2 ..2 ...3 7-12 LA05 PCB RA01 RA02 Description ; Specification 2701-000177 INDUCTOR-AXIAL;33uH,10%,2.5x3.4mm AA41-10891A PCB-A/V SIDE;SCT57A,1L,FR-1,245x245x1.6T 2001-000028 R-CARBON(S);100OHM,5%,1/2W,AA,TP,2.4X6.4 2001-000028 R-CARBON(S);100OHM,5%,1/2W,AA,TP,2.4X6.4 AA63-10002A BAND-TIE;-,NYLON66 V2,-,-,L100,NTR,-,AA98-60005MASSY-SUB,PART;SCT57C,A/V SIDE,761B,0202-000187 SOLDER-WIRE FLUX;-,RS60S,D1.2,63Sn/37Pb Remark Level Loc. No.
Schematic Diagrams 8.
Schematic Diagrams 8-2 Block Diagram 8-2 Samsung Electronics
Wiring Diagram 9.
MEMO 9-2 Samsung Electronics
Schematic Diagrams 10.
Schematic Diagrams 10-2 MAIN 2/4 TP11 TP12 TP12 TP13 TP13 TP14 TP15 TP11 TP14 TP15 : Power Line : Signal Line 10-2 Samsung Electronics
Schematic Diagrams 10-3 MAIN 3/4 TP22 TP16 TP23 TP17 TP24 TP18 TP25 TP19 TP23 TP22 TP16 TP18 TP17 TP21 TP19 TP20 TP20 TP24 TP25 TP21 : Power Line : Signal Line Samsung Electronics 10-3
Schematic Diagrams 10-4 MAIN 4/4 TP32 TP26 TP33 TP27 TP34 TP28 TP35 TP29 TP35 TP33 TP26 TP34 TP27 TP32 TP31 TP28 TP29 TP30 TP30 TP31 : Power Line : Signal Line 10-4 Samsung Electronics
Schematic Diagrams 10-5 POWER (W/O -EW) Samsung Electronics 10-5
Schematic Diagrams 10-6 PIP 10-6 Samsung Electronics
Schematic Diagrams 10-7 VIDEO SWITCH Samsung Electronics 10-7
