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Samsung SyncMaster 700s Plus Service Manual

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SERVICE
COLOR MONITOR
COLOR MONITOR
CKG7507L
(SyncMaster 700s
COLOR
TEMP.
Manual
CONTENTS
)

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Summary of Contents for Samsung SyncMaster 700s Plus

  • Page 1: Table Of Contents

    COLOR MONITOR CKG7507L (SyncMaster 700s SERVICE Manual COLOR MONITOR CONTENTS 1. Precautions 2. Reference Information 3. Product Specifications 4. Operating Instructions 5. Disassembly & Reassembly 6. Alignment & Adjustments 7. Troubleshooting 8. Exploded View & Parts List 9. Electrical Parts List COLOR TEMP.
  • Page 2 Samsung Electronics Co., Ltd. March 1998 Printed in Korea Code No.: BH68-60985A...

  • Page 3: Precautions

    1 Precautio 1-1 Safety Precautions WARNINGS Inspect all protective devices such as nonmetallic For continued safety, do not attempt to modify the control knobs, insulating materials, cabinet backs, circuit board. adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical Disconnect the AC power before servicing.
  • Page 4 1 Precautions 1-2 Servicing Precautions WARNING1: First read the “Safety Precautions” section of this manual. If unforeseen circumstances create conflict between the servicing precautions and safety precautions, always follow the safety precautions. WARNING2: A high voltage VR replaced in the wrong direction may cause excessive X-ray emissions.

  • Page 5: Reference Information

    2 Reference Information 2-1 List of Abbreviations, Symbols and Acronyms 2-1-1 Abbreviations Abbreviation Definition Abbreviation Definition ASS’Y Assembly Oscillator Blue C-Polyester B+ ADJ B+ Adjustment PARA Parabola B-CUT Blue-Cutoff PARALL Parallelogram B-GAIN Blue Gain PIN-BAL Pincushion Balance BRIGHT Brightness PRE-AMP Pre-Amplifier R-Composition Power Saving1 (suspend)
  • Page 6 2 Reference Information 2-1-2 Symbols Can emit X-radiation Hot Ground Cold Ground Electrostatically Sensitive Device (ESD) Provides special safety considerations 2-1-2 Acronyms Acronym Definition Acronym Definition Automatic Brightness Limits Horizontal/Vertical Alternating Current High Voltage Automatic Contrast Limit Input/Output Automatic Frequency Control Integrated Circuit ANSI American National Standards Institute...

  • Page 7: Product Specifications

    3 Product Specifications 3-1 Specifications Item Description Picture Tube: 17-Inch (43 cm): 15.7-inch (39.80 cm) viewable; Full-square flat-face tube, 90˚ Deflection, 0.28 mm Dot pitch, Semi- tint, Non-glare, Invar shadow mask, Anti-static silica coating Scanning Frequency Horizontal : 30 kHz to 70 kHz (Automatic) Vertical : 50 Hz to 160 Hz (Automatic) Display Colors...
  • Page 8 3 Product Specifications 3-2 Pin Assignments Sync 15-Pin Signal Cable Connector (Figure 3-1) Cable Adapter (Figure 3-2) Type Macintosh Separate Composite Pin No. GND-R Green Green Blue Blue H/V Sync Sense 0 DDC Return DDC Return Green GND-R GND-R GND-G GND-G GND-G Sense 1...
  • Page 9 3 Product Specifications 3-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 3-1. Timing Chart Mode Apple MAC. VESA VGA2/70 Hz VGA3/60 Hz 640/75 Hz 800/75 Hz 800/85Hz 1024/75 Hz...
  • Page 10 3 Product Specifications Memo CKG7507L...
  • Page 11 4 Opearating Instructions 4-1 Front View and Control 4-1-1 CKG7507L Front View Table 4-1. Front Panel Controls Location Symbol Description Power Button Power Indicator LED (Dual Color) Contrast Control Brightness Control Position and Modes Push once: Position (Horizontal/Vertical) Push twice: User and Preset Modes Size (Horizontal/Vertical) COLOR TEMP.

  • Page 12: Operating Instructions

    4 Operating Instructions Note 1: This monitor requires a cable adapter for use with a Macintosh computer. The MacMaster Cable Adapter supports all monitors and all Macintosh, Centris, Quadra, Duo Dock, and Power Macintosh computers. If you do not already have a cable adapter, check with your computer dealer.

  • Page 13: Disassembly & Reassembly

    5 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the CKG7507L monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 5-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly. 2.
  • Page 14 5 Disassembly and Reassembly 5-1-5 CRT Ass’y Disassembly 4. Lift the CRT up and away from the Front Cover Assembly and place it on a padded 1. Complete all previous steps. surface. 2. Remove the 4 side screws 2 on the top and 1 Do not lift the CRT by the neck.

  • Page 15: Alignment & Adjustments

    6 Alignment and Adjustments This section of the service manual explains how to make permanent adjustments to the monitor. Directions are given for adjustments using the monitor Interface Board Ver. 2.0 and software (SoftJig). 6-1 Adjustment Conditions Caution: Changes made without the SoftJig are saved only to the user mode settings. As such, the settings are not permanently stored and may be inadvertently deleted by the user.
  • Page 16 GENERATOR Computer with a video board that uses the ET-4000 chipset (strongly recommended if using Samsung DM 200 software) and that displays: 1024 x 768 @ 75 Hz, or 800 x 600 @ 75 Hz (minimum). Figure 6-1. Setup 1, With Signal Generator 6.
  • Page 17 6 Alignment and Adjustments 6-2 Using the SoftJig Refer to Softjig Manual. CKG7507L...
  • Page 18 6 Alignment and Adjustments 6-3 Display Control Adjustments 6-3-1 Centering Click on the << or >> box next to H_POSI to center the horizontal image on the raster. Centering means to position the center point of the display in the middle of the display area. 6-3-1 (d) VERTICAL POSITION ADJUSTMENT Horizontal size and position and vertical size and position control the centering of the display.
  • Page 19 6 Alignment and Adjustments 6-3-2 (b) VERTICAL LINEARITY ADJUSTMENT Click on the << or >> box next to PARALL to make the image area rectangular. CONDITIONS Scanning frequency: 60 kHz/75 Hz Display image: Crosshatch pattern Brightness: Maximum Contrast: Maximum To adjust the Vertical Linearity, refer to Tables 6-1 4 mm and 6-2 for the tolerance range.
  • Page 20 6 Alignment and Adjustments 6-4 Color Adjustments 6-4-1 Color Coordinates (Temperature) Note: If the above adjustments cannot be done to each coordinate, click on the Color temperature is a measurement of the << or >> box next to G_CUT to decrease radiant energy transmitted by a color.
  • Page 21 6 Alignment and Adjustments 1. Click on the << or >> boxes next to R_GAIN 6-4-3 Color Adjustments for 6500K and B_GAIN to make the video white. 6-4-3 (a) BACK RASTER COLOR ADJUSTMENT (For 9300K color adjustment: x = 0.283 ± 0.02, y = 0.298 ±...
  • Page 22 6 Alignment and Adjustments 6-4-4 Luminance Uniformity Check CONDITIONS Orientation: Monitor facing east Luminance is considered uniform only if the ratio Scanning frequency: 60 kHz/75 Hz of lowest to highest brightness areas on the screen Display image: White flat field is not less than 7.5:10.
  • Page 23 CONDITIONS Direction: Monitor facing east Warm-up: 30 minutes Display image: Crosshatch pattern Samsung SDD CRT Tolerances: See Table 6-4 1 Setup Bolt 2 Bow Magnet 3 Band 4 2-Pole Magnet PROCEDURE...
  • Page 24 6 Alignment and Adjustments 5. After completing the red and blue center 1. Make sure the display is not affected by convergence adjustment, locate the pair of external magnetic fields. 6-pole magnet rings. 2. Make sure the static convergence is properly 6.
  • Page 25 6 Alignment and Adjustments 6-5-3 Bow Convergence Adjustments 6-5-4 (a) HORIZONTAL LINE RED AND BLUE BALANCE CONVERGENCE CONDITIONS Orientation: Monitor facing east. BLUE Display Image: Crosshatch pattern with mixed RGB colors. Required tools: Flat-head (–) screwdriver, 1.5 mm Philips (+) screwdriver, 1.5 mm Hexkey, 2.5 mm Figure 6-17.
  • Page 26 6 Alignment and Adjustments Memo 6-12 CKG7507L...

  • Page 27: Troubleshooting

    7 Troubleshooting Notes: 1. If a picture does not appear, fully rotate the brightness and contrast controls clockwise and reinspect. 2. Check the following circuits. • No raster appears: Power circuit,Horizontal output circuit, H/V control circuit, and H/V output circuit. •...
  • Page 28 7 Troubleshooting 7-2 Horizontal Line on CRT or Rainbow Color on the Screen The first of all you must check WAVEFORMS Check the –12V Line at power CN301. Does the –12V appear at secondary part. (D615, C620) Pin 4 of IC301? 2.80 V (IC401, #9) Does the pulse appear at Pin 5 Does the sawteeth wave appear...
  • Page 29 7 Troubleshooting 7-4 No Raster (1) WAVEFORMS Power indicator is green 8.56 V (IC401, #18) Does the +B output voltage appear at the secondary side of Check the power supply circuits. T601? (45 V, 72 V, 14.7 V, etc) Does the output CH1 P-P = 8.56 V CH1 RMS = 5.900 V pulse appear at...
  • Page 30 7 Troubleshooting 7-5 No Raster (2) Power indicator is Amber. Does the +B output voltages appear at the secondary side of Check the power supply circuits. T601? (45 V , 72 V, 14.7 V ,etc) Does the output pulse appear at Check Q404 and its related circuits.
  • Page 31 7 Troubleshooting 7-6 No Video Power indicator is green and High voltage is appeared. Does DC 6.3 V appear at Check the 6.3 V line at power supply Pin 10 of SK1 on the circuits (Q605, D620 and Q606). Video Socket Board? Does DC 10 V appear at Check the High voltage protection Pin 7 of IC502?
  • Page 32 7 Troubleshooting 7-7 No OSD Displays There is video but no OSD. WAVEFORMS 5.44 V (IC104, #5) While pushing a front Check the push buttons on the front control button does any pulse control board SW1 ~ SW5, appear at Pins 10 and 11 of CF201 and IC201.
  • Page 33 7 Troubleshooting 7-8 No Specific Color Appears The raster color is The raster color is The raster color is light red or cyan light green or magenta light blue or yellow Check the red video circuits. Check the green video circuits. Check the blue video circuits.
  • Page 34 7 Troubleshooting 7-10 Power Save Management System Failure 7-10-1 Stand-By Mode 7-10-2 Suspend Mode No 1. Check V-sync input (inactive) Does the pulse appear at Does +5V appear at Pin 12 2. Check IC201 and its related Pin 37 of IC201? of IC201? circuits Does Q604 and Q302...
  • Page 35 7 Troubleshooting 7-11 User Controls Don’t Work Check the button and CF201_2 Does DC 5V appear at Pin 8 of connector Ass’y. CN201? (SW1 ~ SW5 and SW6 ~ SW10) Does the DC level change at the positive poles of C201 to C217 when you push the Check IC201.
  • Page 36 7 Troubleshooting Memo 7-10 CKG7507L...
  • Page 37 8 Exploded View and Parts List 8-1 Front Cover & CRT Ass’y DESCRIPTION CODE NO SPECIFICATION Q'TY REMARK CKG7507L...

  • Page 38: Exploded View & Parts List

    8 Exploded View & Parts List 8-2 Chassis & Stand Ass’y DESCRIPTION CODE NO SPECIFICATION Q'TY REMARK CKG7507L...
  • Page 39 8 Exploded View & Parts List 8-3 Rear Cover Ass’y DESCRIPTION CODE NO SPECIFICATION Q'TY REMARK CKG7507L...
  • Page 40 8 Exploded View & Parts List Memo CKG7507L...

  • Page 41: Electrical Parts List

    9 Electrical Parts List 9 Electrical Parts List 9-1 Main PCB Parts Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks BD404 199.3 138.9 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD501 138.3 147.9 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD601 81.2 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD602 109.2...
  • Page 42 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks C411 131.1 228.9 2202-002009 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5V,2.3X3.0 C413 149.3 192.2 2301-000016 (T)100V 223J CAP-MYLAR,223J,2A,5P C414 149.6 169.2 2301-000010 C-FILM,PEF 100nF,5%,100V,11.5x12.5mm,5mm C415 115.6 232.1 2401-000026 (T)50V 3.3M CAP-AL.ELEC,335M,1H C416 160.8 187.1...
  • Page 43 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks C520 215.4 27.1 2401-000044 (T)250V 3.3M CAP-AL.ELEC,335M,2E C521 120.8 137.8 2401-000913 C-AL 22uF,20%,16V,GP,5x11mm,2mm,TP C522 158.3 54.2 2305-000012 C-FILM,MPEF 5.6nF,10%,250V,14.5X9.0X6.0,11 C523 161.6 128.3 2301-000022 C-FILM,PEF 100nF,10%,200V,11.0X14.0X7.0,7 C524 132.1 134.7 2202-002009...
  • Page 44 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks CN400 222.4 171.6 3712-000338 CONNECTOR-TERMINAL PIN,MALE,2.36mm CN401 230.4 171.6 3712-000338 CONNECTOR-TERMINAL PIN,MALE,2.36mm CN402 212.4 171.6 3712-000338 CONNECTOR-TERMINAL PIN,MALE,2.36mm CN602 65.2 28.2 3711-000217 STRAIGHT,1WALL CON-WALL HEADER,3P,3.96 CN63 57.2 62.8 3712-000338...
  • Page 45 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks D615 32.1 164.2 0402-000546 DIODE-RECTIFIER 31DF4,400V,3A,DO-201AD D617 0402-000005 DIODE-RECTIFIER 31DF4,400V,3A,DO-201AD D618 72.4 150.5 0402-000014 DIODE-RECTIFIER RG2,400V,1.2A,DO-201 D619 22.2 152.6 0402-000005 DIODE-RECTIFIER 31DF4,400V,3A,DO-201AD D620 77.2 150.5 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.0A,DO-41 D641...
  • Page 46 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks Q404 121.4 0501-000010 0.8W,80V,60V,8V,0.7A TR-NPN,KSC1008,TO-92,ECB Q405 209.5 253.7 0505-001102 FET-SILICON IRFR/U230A,N,200V,7.5A,400mohm Q406 174.7 139.5 0502-001001 TR-POWER KSC5088,NPN,1500V,1500V,8A,50W Q407 288.4 0501-000010 0.8W,80V,60V,8V,0.7A TR-NPN,KSC1008,TO-92,ECB Q408 205.5 266.8 0505-001102 FET-SILICON IRFR/U230A,N,200V,7.5A,400mohm Q409...
  • Page 47 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks R228 14.7 302.6 2001-000034 REF-CF,220,5%,1/4W 250V,-350 TO +350PPM/C,R-AXIAL R229 65.6 287.6 2001-000562 REF-CF,27K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R230 251.7 2001-000067 REF-CF,10K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R231 66.6 292.7 2001-000836 R-CARBON 51Kohm,5%,1/6W,AA,TP,1.8x3.2mm...
  • Page 48 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks R403 133.8 302.3 2001-000056 REF-CF,4.7K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R404 150.8 309.7 2001-000043 REF-CF,1K,5%,1/6W 150V,-1300 TO +350PPM,R-AXIAL R405 137.5 274.5 2001-000048 REF-CF,2.2K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R407 131.4 265.5 2001-000001 R-CARBON...
  • Page 49 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks R467 133.5 241.4 2001-000056 REF-CF,4.7K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R468 131.4 244.6 2001-000048 REF-CF,2.2K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R469 221.8 2001-000109 R-CARBON(S) 470ohm,5%,1/2W,AA,TP,2.4x6.4mm R471 171.3 287.8 2001-001030 200V,-800PPM/C,R-AXIAL REF-CF,91K,5%,1/6W R472 249.4...
  • Page 50 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks R562 188.6 2001-000056 REF-CF,4.7K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R563 186.8 2001-000097 REF-CF,1M,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R564 188.6 44.1 2001-000093 REF-CF,470K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R565 202.9 42.8 2001-000059 R-CARBON 5.6Kohm,5%,1/6W,AA,TP,1.8x3.2m R566...
  • Page 51 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks T602 81.3 84.9 BH26-30302S TRANS-SYNC. 3-1(250UH),SB-5S,UU1116,3- TH601 57.1 62.9 1404-001020 THERMISTOR-NTC 8ohm,15%,17mW/C, BK VR402 151.1 273.9 2103-000209 VR-SEMI 1Kohm,30%,1/10W,TOP VR501 232.9 77.4 2103-000454 VR-SEMI 50Kohm,25%,0.3W,SIDE X201 30.4 288.4 2802-001084...
  • Page 52 9 Electrical Parts List 9-2 Video PCB Parts Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks BD100 211.5 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD101 153.4 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD102 17.2 37.4 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM BD103 126.4 138.6 3301-000011 MAG-CORE,FERRITE,BEAD 1.2UH,3.5_5.7MM,10 OHM...
  • Page 53 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks CB04 93.9 115.9 2202-002009 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5V,2.3X3.0 CB05 74.5 142.3 2305-000009 (T)250V 104J CAP-MPETP,104J,2E,7.5P CB06 144.5 2301-000015 (T)100V 103J CAP-MYLAR,103J,2A,5P CB09 172.5 117.5 2202-002009 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5V,2.3X3.0 CF105 BH39-40356Z CBF-HARNESS 8P,120MM,BLK/WHT,UL1007,AWG22...
  • Page 54 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks 28.3 73.5 6042-000002 EYELET ID1.5,OD2,L3.1,SN,BSS3-E/EH 61.9 6042-000002 EYELET ID1.5,OD2,L3.1,SN,BSS3-E/EH 44.2 55.6 6042-000002 EYELET ID1.5,OD2,L3.1,SN,BSS3-E/EH FT01 23.5 2901-001042 FILTER-EMI ON BOARD 50VDC,3A HS101 102.8 BH70-10440A SHIELD-D.SUB CGE7527,SPTE,T0.5 HS102 81.9 BH70-10458B...
  • Page 55 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks R133 11.3 45.4 2002-000107 R-COMPOSITION 100ohm,10%,1/2W,AA,TP,3.5x9.5m R134 226.1 103.5 2001-000067 REF-CF,10K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R135 226.1 106.3 2001-000067 REF-CF,10K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL R136 136.4 153.7 2003-000704 R-METAL OXIDE(S) 47Kohm,5%,1W,AA,TP,3.3x9mm R138...
  • Page 56 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks RB10 183.5 144.5 2001-000069 R-CARBON 12Kohm,5%,1/6W,AA,TP,1.8x3.2mm RB11 136.5 2001-000053 REF-CF,3.3K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL RB12 165.5 2001-000224 REF-CF,1.2M,5%,1/6W 150V,-1300 TO +350PPM/C,1.9X3.2 RB13 172.5 2001-000367 REF-CF,15K,5%,1/6W 150V,-1300 TO +350PPM/C,R-AXIAL RB14 2001-000963 REF-CF,75K,5%,1/6W...
  • Page 57 9 Electrical Parts List Loc. No. Coordinates (X,Y) New Code No. Description Specification Remarks SW10 3404-000243 1/20W 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S 3404-000243 SWITCH-TACT 15V,20mA,160gf+-50gf,6x3.4mm,S VR701 2101-001008...
  • Page 58 9 Electrical Parts List Others Loc. No. Code No. Description Specification Remarks BH03-10337T CRT-COLOR M41KUN36X03(E/L/LP) Silica Coating BH03-10337U CRT-COLOR M41KUN36X03(A/L/LP) Multi Coating BH03-10337V CRT-COLOR M41KUN36X03(T4/L/LP) TCO Coating CRT GND BH39-40362C CBF-CRT GROUND 1P,320MM,BLK,UL1015,AWG18 D-COIL BH27-10335Y DEGAUSSING COIL CKG7507L PROCESS-PBA UNIT BH94-30010F ASS’Y PCB CKG7507...

  • Page 59: Block Diagram

    10 Block Diagram CKG7507L 10-1...
  • Page 60 10 Block Diagram Memo 10-2 CKG7507L...

  • Page 61: Pcb Diagrams

    11 PCB Diagrams 11 PCB Diagrams 11-1 Main PCB (Bottom View) CKG7507L/LM 11-1...
  • Page 62 11 PCB Diagrams 11-2 Video PCB (Bottom View) 11-2 CKG7507L/LM...
  • Page 63 11 PCB Diagrams 11-3 Semiconductor Lead Identification PARTS TYPE NO. REF. NO. PARTS TYPE NO. REF. NO. PARTS TYPE NO. REF. NO. KSC945/ Q106, Q108, Q110, Q201, LTV-817 IC602 KSC815 Q202, Q203, Q301, Q302, Q604, Q606 TDA9302H IC301 2N3904 Q401, Q412, Q413, Q501 2N3906 Q402 MPSA42...
  • Page 64 11 PCB Diagrams Memo 11-4 CKG7507L/LM...

  • Page 65: Wiring Diagram

    12 Wiring Diagrams 12 Wiring Diagram MAIN PCB CRT SOCKET PCB CN14 CRT SOCKET FOCUS2 CF105 FOCUS1 (RED) (RED)H + CN402 (WHITE) CN400 (BLUE)H – H – CN401 (Brown)V+ VIDEO PCB CF202 CN301 (V-DY) CONTRAST CONTRAST (ORG)V – V – CN105 CN102 70 V...

  • Page 66: Schematic Diagrams

    13 Schematic Diagrams 13-1 Power Part Schematic Diagram 13-1 CKG7507L...
  • Page 67 13 Schematic Diagrams Table 13-1. IC601 (KA0680) Table 13-3. IC603 (TL431CLP) 344 V (IC601, #1) 6.4 V (IC601, #5) MODES MODES 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 194.6 19.8 12.5...
  • Page 68 13 Schematic Diagrams 13-2 Micro Processor & Vertical Deflection Part Schematic Diagram 13-3 CKG7507L...
  • Page 69 13 Schematic Diagrams Table 13-6. IC201 (BD7) Table 13-7. IC202 (24LC41) 8.56 V (IC401, #18) 5.20 V (IC401, #17) 29.6 V (Q301, Collector) 28.8 V (G1) MODES MODES MODES 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 1024 x 768 / 85 Hz 640 x 480 / 60 Hz...
  • Page 70 13 Schematic Diagrams 13-3 Horizontal Deflection & High Voltage Part Schematic Diagram 13-5 CKG7507L...
  • Page 71 13 Schematic Diagrams Table 13-10. IC402 (KA3883) 2.48 V (IC402, #4) 1.00 V (IC402, #3) 15.8 V (Q411, Gate) 138 V (Q411, Drain) MODES 1024 x 768 / 85 Hz 640 x 480 / 60 Hz CH1 P-P = 2.48 V CH1 RMS = 1.464 V CH1 P-P = 1.00 V CH1 RMS = 236 mV...
  • Page 72 13 Schematic Diagrams 13-4 Video & Control Part Schematic Diagram 13-7 CKG7507L...
  • Page 73 13 Schematic Diagrams Table 13-13. IC101 (KA2140) Table 13-14. IC102 (LM2405T) 860 mV (IC101, #5, 8, 11) 3.28 V (IC101, #18,20,23) 5.40 V (IC101, #16) 5.40 V (IC101, #15) MODES MODES MODES 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 1024 x 768 / 85 Hz 640 x 480 / 60 Hz 1024 x 768 / 85 Hz 640 x 480 / 60 Hz...
  • Page 74 13 Schematic Diagrams Memo 13-9 CKG7507L...

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