Samsung DP14LS Service Manual
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Samsung DP14LS Service Manual

Samsung DP14LS Service Manual

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SERVICE

COLOR MONITOR

COLOR MONITOR
DP14LS
DP14LT
DP15LS
DP15LT
Manual
CONTENTS

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Summary of Contents for Samsung DP14LS

  • Page 1: Table Of Contents

    COLOR MONITOR DP14LS DP14LT DP15LS DP15LT SERVICE Manual COLOR MONITOR CONTENTS 1. Precautions 2. Product Specifications 3. Operating Instructions 4. Disassembly & Reassembly 5. Alignment & Adjustments 6. Troubleshooting 7. Exploded View & Parts List 8. Electrical Parts List 9. Block Diagram 10.

  • Page 2: 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 3: Servicing Precautions

    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: An electrolytic capacitor installed with the wrong polarity might explode. Servicing precautions are printed on the cabinet, Check the insulation between the blades of the AC and should be followed closely.

  • Page 4: Product Specifications

    2 Product Specifications 2-1 Specifications Item Description Picture Tube: 14-Inch (36 cm); 13.2-Inch (33.5 cm) viewable, 90° Deflection, 15-Inch (38 cm); 13.8-Inch (35 cm) viewable, flat-face tube, 90° Deflection, 0.28 mm Dot pitch, Semi-tint, Non-glare, Antistatic silica coating, Invar shadow mask Scanning Frequency Horizontal: 30 kHz to 55 kHz (Automatic) - 14”...

  • Page 5: Pin Assignments

    2 Product Specifications 2-2 Pin Assignments Sync 15-Pin Signal Cable Connector (Figure 2-1) Type Separate Pin No. Green Blue DDC Return GND-R GND-G GND-B Reserved GND-Sync/Self-raster DDC Data H-Sync V-Sync DDC Clock Figure 2-1. Male Type DP14L*/DP15L*...

  • Page 6: Timing Chart

    2 Product Specifications 2-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 2-1. Timing Chart Mode VESA 1024/60 Hz 1024/75 Hz 720/70 Hz 640/60 Hz 640/75 Hz 640/85 Hz 800/75 Hz...
  • Page 7 2 Product Specifications Memo DP14L*/DP15L*...

  • Page 8: Operating Instructions

    3 Operating Instructions 3-1 Front View and Control Table 3-1. Front Panel Controls Location Symbol Description Power Button Power Indicator LED Horizontal Position Button Vertical Position Button Horizontal Size Button Vertical Size Button Adjustment Buttons Side Pincushion Button Trapezoid Button Brightness Control Contrast Control Parallelogram...
  • Page 9 3 Operating Instructions Memo DP14L*/DP15L*...

  • Page 10: Disassembly & Reassembly

    4 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the DP14L*/DP15L* monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 4-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly. 2.
  • Page 11 1. Complete all previous steps. 2. Disconnect the CRT and Main PCB ground wires between the CRT Socket PCB and Shield Cover. (DP14LS only) 3. Lift up the Video Spring and remove the CRT Socket PCB from the CRT. Figure 6 10.
  • Page 12 4 Disassembly and Reassembly 4-1-3 Removing the Main PCB 6. Remove the screws on the back and along each side of the Bottom Chassis. 1. Complete all previous steps. 7. Carefully lift the Main PCB AssÕy and remove 2. Disconnect the Degaussing Coil at GT601 and the remaining ground wires.
  • Page 13 4 Disassembly and Reassembly Memo DP14L*/DP15L*...

  • Page 14: Alignment & Adjustments

    5 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). 5-1 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 15 Computer with a video board that uses the MONITOR ET-4000 chipset (strongly recommended if INTERFACE using Samsung DM 200 software) and that BOARD VER. 2.0 SIGNAL CABLE displays: 800 x 600 @ 85 Hz, or 800 x 600 @ 75 Hz (minimum).
  • Page 16 5 Alignment and Adjustments 5-2 Display Control Adjustments 5-2-1 Centering 5-2-1 (b) VERTICAL SIZE ADJUSTMENT CONDITIONS Centering means to position the center point of Scanning frequency: 53.7 kHz/85 Hz the display in the middle of the display area. Display image: Crosshatch pattern Horizontal size and position and vertical size and Brightness:...
  • Page 17 5 Alignment and Adjustments 5-2-3 Trapezoid Adjustment 5-2-6 CRT Tilt Adjustment ( Option) CONDITIONS TILT ADJUSTMENT (DP15L* With Tilt) Scanning frequency: 53.7 kHz/85 Hz Push the V-Posi and H-Size simultaneously until Display image: Crosshatch pattern Led blinks and back on again. Push the Increase (+) and Decrease (Ð) buttons to correct the Tilt.

  • Page 18: Color Adjustments

    5 Alignment and Adjustments 5-3 Color Adjustments Before making adjustments, check that the video 5-3-3 Video Gain Adjustment signals are as follows: 1/3H-1/2H Video : Analog, 0.7 Vp-p (at 75 ½ termination) Sync : Separate TTL level FRONT BEZEL OPENING Unless otherwise specified, use 800 x 600 mode BACK RASTER 1/3V-1/2V...
  • Page 19 5 Alignment and Adjustments 5-3-5 White Balance Fine Adjustment 5-3-9 Color Purity Adjustment CONDITIONS Color purity is the absence of undesired color. Conspicuous mislanding (unexpected color in a Measurement instrument: Color analyzer uniform field) within the display area shall not be Scanning frequency: 53.7 kHz/85 Hz visible at a distance of 50 cm from the CRT...

  • Page 20: Troubleshooting

    6 Troubleshooting 6-1 General 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 21 6 Troubleshooting 6-1-2 Shut Down Check X-ray protection circuit. : D502, D503, R510 Check key components of secondary part. : D406, D407, D408, D515, IC101 (Vcc ~ GND) Q402, Q504, Rectifier diodes Check and replace IC601. Refer to 6-2-1 No Power. Refer to 6-2-3 No Raster and 6-2-12 High Voltage Failure.
  • Page 22 6 Troubleshooting 6-1-3 No Video or Missing Colors WAVEFORMS Check signal cable connection, H/V Sync input. Check Timing mode (14”: 30~55kHz, 15”: 30~61kHz). 46.4 V (SK103, G) Check Cont, Brit key (all Max) and Screen VR (G2). Are 0.7Vp-p video input on Check signal cable and generator.
  • Page 23 6 Troubleshooting 6-1-5 Unsynchronized image Check the connection of signal cable. Are H/V sync input on IC201’s Refer to 6-2-17 Micom Check H/V sync input line. Pins 30 and 31? Failure. Are H/V sync input on IC401’s Check H/V sync input line. Check and replace IC201.
  • Page 24 6 Troubleshooting 6-1-7 Poor Focus Adjust Focus VR. Aging monitor and check focus Improved Focus? change for 1~2 hours. Check Focus lead from FBT to CRT Socket. Are the CRT Socket and Replace and connect it. connection OK? Check and replace CRT. 6-1-8 Purity Failure Degaussing Is purity OK?
  • Page 25 6 Troubleshooting 6-2 Detail Repair Section Notes: 1. If a picture does not appear check first • if AC power cord is plugged or not, • if signal cable is connected or not, • if signal generator (PC) is operated well or not (DPMS mode) •...
  • Page 26 6 Troubleshooting 6-2-2 DPMS Failure 6-2-2 (a) Off Mode (No H/V sync) Make sure that there is No H/V sync from signal generator. (Signal cable should be connected) Check and replace Is LED blinking? (1 sec toggle) Is OP201 OK? OP201.
  • Page 27 6 Troubleshooting 6-2-2 (b) Suspend Mode (H sync: OK, V sync: No) Make sure that H sync is OK and V sync is not. (Signal cable should be connected) Check and replace Is LED blinking? (0.5 sec toggle) Is OP201 OK? OP201.
  • Page 28 6 Troubleshooting 6-2-3 No Raster : No Raster means (Power: OK, High Voltage: No) Is 53 V on C507? Refer to 6-2-1 No Power. Check and replace Is 12 V on C628? Is 0 V on IC201’s Pin 5 (sus)? Q602, Q605, Q606, IC101, IC401.
  • Page 29 6 Troubleshooting 6-2-4 S-correction Failure Symptoms: Poor Horizontal linearity – Corner: wide, Center: narrow or – Corner: narrow, Center: wide Are S1 and S2 OK at IC201’s Are Q405 and Q407 OK? Replace Q405, Q407. Pins 9 and 10? Check and replace IC201. Are Q406 and Q408 OK? Replace it.
  • Page 30 6 Troubleshooting 6-2-6 Invariable H_Size Are D414, Q411 and Q412 OK? Replace it. Does the PWM duty of IC201’s Pin Check and replace Is Q409 OK? 22 vary, pressing H_Size button? Q409. Replace IC201. WAVEFORMS Is paravola waveform on Replace IC401. 1.12 V (IC401, #24) IC401’s Pin 24? Check and replace Q409, Q410, L402.
  • Page 31 6 Troubleshooting 6-2-8 S_Pin, Trap, Para, V_Lin, Pin_Bal Failure WAVEFORMS Key check (6-2-19) 1.12 V (IC401, #24) Is IC401’s Pin 24 OK? Check and replace IC401. CH1 P-P = 1.12 V CH1 RMS = 3.094 V Refer to 6-2-13 I C Failure.
  • Page 32 6 Troubleshooting 6-2-10 Vertical Deflection Failure Symptoms: – One horizontal line – Rainbow color, No Video Check and replace D608, D609, Are +13 V, –12 V line OK? IC301, IC302. Is V_out waveform on IC401’s Check and replace Is 8 V on IC401’s Pin 21? Pin 23? R307, R308, IC401.
  • Page 33 6 Troubleshooting 6-2-12 High Voltage Failure Symptoms 1: – No Power – No Raster – Unstable operation (Fixed FBT B+ voltage with different H_frequency, Over 31 kHz: whistle sound, Narrow H_Size, Unsynchronized image, 31 kHz: OK) Is 53 V on C623? Refer to 6-2-1 No Power.
  • Page 34 6 Troubleshooting Symptoms 2: – X-ray protection – One vertical line and then high voltage shut down. Are C417, C504, D502, D503, R509 Check and replace it. and R510 ok? Check and replace D407, D408, D414, Q402, Q504, IC401. Check and replace IC201. 6-2-13 I C Failure –...
  • Page 35 6 Troubleshooting 6-2-14 ABL Failure Symptoms : – Full white luminance is too bright. (ABL minium is over 35 F/L) – Full white luminance is too dark. (ABL maximum is under 35 F/L) – The luminance of full white and No Video are almost same. Display the full white pattern.
  • Page 36 6 Troubleshooting 6-2-15 Invariable Contrast, Brightness Control WAVEFORMS Refer to 6-2-18 Key Check. (Contrast, Brightness) 3.16 V (IC101, #21) C check (6-2-13) CH1 P-P = 3.16 V CH1 RMS = 1.008 V Does IC101’s output 43.2 V (IC103, #3) (Pins 18, 21 and 23) vary, pressing Replace IC101.
  • Page 37 6 Troubleshooting 6-2-16 No Video Check signal cable connection. Check Cont, Bright key (All max). Is heater voltage (5.9~6.3V) on Are D612, Q603 and R618 ok? Replace it. SK103’s heater Pin? Check and replace Is 0V on Q604’s collector? Q603, R618, R619. Check and replace Is 5V on IC201’s Pin 6 IC201.
  • Page 38 6 Troubleshooting 6-2-16 No Video Continued Is IC101’s output on Pins 18, Is clamp signal on IC101’s Check and replace 21 and 23? Pin 12? IC201 and around it. Refer to 6-2-15 ABL Failure. Replace IC101. Is IC103’s output on Pins 1, Is 70 V on IC103’s Pin 4? Check 70 V line.
  • Page 39 6 Troubleshooting 6-2-17 Micom Failure Check the connection of signal cable. If signal cable is disconnected, self raster (No Video, Bright Raster) appears. Check H/V sync from PC or signal If there is no H/V sync, monitor is operated as DPMS mode. generator.
  • Page 40 6 Troubleshooting 6-2-17 Micom Failure Continued When disconnecting signal Cceck and replace Are H/V sync input on cable: Is 0V on IC201’s Pin 19? IC201, R226 24 25 IC201’s Pins 30 and 31? When connecting signal cable: Signal cable. Is 5V on IC201’s Pin 19? Check signal cable.
  • Page 41 6 Troubleshooting 6-2-18 Key Check 1) Key Map Keyout3 Keyout2 Keyout1 Keyin4 Keyin3 Keyin2 Keyin1 (#5) (#4) (#3) (#39) (#40) (#42) (#1) R206 R207 R208 R209 SW204 SW203 SW202 SW201 (V-Size) (H-Size) (V-Posi) (H-Posi) SW208 SW207 SW206 SW205 (Cont) (Brit) (Trap) (S-Pin) SW209...
  • Page 42 6 Troubleshooting 6-2-19 User Control Failure When pressing keys, Check knob function and space does LED blink? at front cover. Refer to 6-2-18 Key Check. Refer to 6-2-18 Key Check. 6-2-20 Degaussing Failure Check if degaussing coil is connected with GT601, GT602. When pressing cont and brit key simultaneously, does the Refer to 6-2-18 Key Check.
  • Page 43 6 Troubleshooting 6-2-21 Horizontal Blank Failure Symptoms: – Dark image and if shifting image to left or right side, image is rolled. – Raster left or right side is rolled. WAVEFORMS Is H_Blank waveform on Check CN105 and CN202. Q510’s collector? 5.36 V (Q510, Collector) Check and replace IC101.
  • Page 44 7 Exploded View and Parts List 7-1 DP14L* DP14L*/DP15L*...

  • Page 45: Exploded View & Parts List

    7 Exploded View & Parts List 7-2 DP15L* DP14L*/DP15L*...
  • Page 46 7-1-1 Front Cover & CRT Ass’y (DP14L*) DP14L*/DP15L*...
  • Page 47 7 Exploded View & Parts List 7-1-2 Chassis & Stand Ass’y (DP14L*) DP14L*/DP15L*...
  • Page 48 7 Exploded View & Parts List 7-1-3 Rear Cover Ass’y (DP14L*) DP14L*/DP15L*...
  • Page 49 7 Exploded View & Parts List 7-2-1 Front Cover & CRT Ass’y (DP15L*) DP14L*/DP15L*...
  • Page 50 7 Exploded View & Parts List 7-2-2 Chassis & Stand Ass’y (DP15L*) DP14L*/DP15L*...
  • Page 51 7 Exploded View & Parts List 7-2-3 Rear Cover Ass’y (DP15L*) DP14L*/DP15L*...

  • Page 52: Electrical Parts List

    8 Electrical Parts List 8-1 Main PCB Parts Loc. No. Code No. Description Specification Remarks BD402 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD403 3301-000012 CORE-FERRITE BEAD AA,3.5x1x9mm,1000,3000 BD406 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD501 3301-000012 CORE-FERRITE BEAD AA,3.5x1x9mm,1000,3000 BD502 3301-000012 CORE-FERRITE BEAD AA,3.5x1x9mm,1000,3000 BD601 3301-000012 CORE-FERRITE BEAD...
  • Page 53 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks C420 2401-001509 C-AL 47uF,20%,16V,GP,TP,5x7,2.5mm C421 2401-001515 C-AL 47uF,20%,16V,WT,TP,6.3x11,5 C422 2401-000603 C-AL 1uF,20%,50V,GP,TP,5x11,5 C423 2301-000004 C-FILM,PEF 2.2nF,5%,100V,TP,5.5X10X2.9,5 C424 2401-000887 C-AL 220uF,20%,63V,GP,TP,10x20,5 C425 2301-000005 C-FILM,PEF 33nF,5%,100V,TP,5.8x12.5x3,5 C426 2301-001207 C-FILM,PPF 5.2nF,5%,2.5KV,BK,29x21.5x13 C427 2201-000291 C-CERAMIC,DISC 1nF,10%,500V,Y5P,TP,8.5x5...
  • Page 54 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks C619 2201-000023 C-CERAMIC,DISC 2.2nF,20%,125V,Y5U,TP,11x C620 2401-000039 C-AL 1000uF,20%,16V,GP,TP,10x16,5 C621 2201-000469 C-CERAMIC,DISC 330pF,10%,500V,Y5P,TP,6x4 C622 2401-001551 C-AL 47uF,20%,35V,GP,TP,6.3x11,5 C623 2401-000058 C-AL 220UF,20%,100V,GP,TP,10X20MM,5 C624 2401-000039 C-AL 1000uF,20%,16V,GP,TP,10x16,5 C626 2401-000039 C-AL 1000uF,20%,16V,GP,TP,10x16,5 C628 2401-000042 C-AL 100uF,20%,16V,GP,TP,6.3x7,5...
  • Page 55 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks D602 0402-000012 DIODE-RECTIFIER UF4007,1KV,1A,DO-41,TP D603 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.0A,DO-41,T D604 0402-000012 DIODE-RECTIFIER UF4007,1KV,1A,DO-41,TP D605 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.0A,DO-41,T D606 0401-000005 DIODE-SWITCHING 1N4148,75V,200MA,DO-35,T D607 0403-000361 DIODE-ZENER UZ6.2BSB,6.2V,5.99-6.24V,500 D608 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.0A,DO-41,T D609 0402-001118 DIODE-RECTIFIER UF1G,400V,1.2A,DO-204AL...
  • Page 56 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks Q407 0501-000586 TR-SMALL SIGNAL KSC945,NPN,250mW,TO-92,T Q408 0505-001309 FET-SILICON IRF630,N,200V,10A,0.4OHM,100 Q409 0501-000303 TR-SMALL SIGNAL KSA733,PNP,250mW,TO-92,T Q410 0501-000303 TR-SMALL SIGNAL KSA733,PNP,250mW,TO-92,T Q411 0501-000586 TR-SMALL SIGNAL KSC945,NPN,250mW,TO-92,T Q412 0502-000465 TR-POWER KTD2058-Y,NPN,25W,TO-220IS,ST Q501 0501-000143 TR-SMALL SIGNAL 2N6520,PNP,625mW,TO-92...
  • Page 57 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks R238 2001-000411 R-CARBON 18KOHM,5%,1/8W,AA,TP,1.8X3.2MM R239 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM R240 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM R241 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM R301 2004-000284 R-METAL 12Kohm,1%,1/4W,AA,TP,2.4x6.4mm R303 2001-000016 R-CARBON(S) 1OHM,5%,1/2W,AA,TP,2.4X6.4MM R304 2004-001023 R-METAL 5.6Kohm,1%,1/8W,AA,TP,1.8x3.2m R305 2001-001107 R-CARBON(S) 220ohm,5%,1/2W,AA,TP,2.4x6.4...
  • Page 58 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks R434 2001-000435 R-CARBON 1MOHM,5%,1/8W,AA,TP,1.8X3.2MM R435 2001-000273 R-CARBON 100KOHM,5%,1/8W,AA,TP,1.8X3.2MM R436 2001-000356 R-CARBON 150KOHM,5%,1/8W,AA,TP,1.8X3.2MM R437 2001-000009 R-CARBON 20KOHM,5%,1/8W,AA,TP,1.8X3.2MM R438 2001-000721 R-CARBON 4.3KOHM,5%,1/4W,AA,TP,2.4X6.4MM R439 2004-000327 R-METAL 150Kohm,1%,1/4W,AA,TP,2.4x6.4m R440 2001-000591 R-CARBON 3.3KOHM,5%,1/8W,AA,TP,1.8X3.2MM R441 2001-000864 R-CARBON 56KOHM,5%,1/8W,AA,TP,1.8X3.2MM...
  • Page 59 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks R608 2001-000734 R-CARBON 4.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM R609 2003-000738 R-METAL OXIDE(S) 56Kohm,5%,2W,AA,TP,4x12 R610 2003-000507 R-METAL OXIDE(S) 15Kohm,5%,1W,AA,TP,3.3x R611 2001-001163 R-CARBON(S) 560OHM,5%,1/2W,AA,TP,2.4X6.4 R612 2001-001117 R-CARBON(S) 2KOHM,5%,1/2W,AA,TP,2.4X6.4M R613 2003-000471 R-METAL OXIDE(S) 10ohm,5%,2W,AA,TP,4x12m R615 2001-000354 R-CARBON 150KOHM,5%,1/4W,AA,TP,2.4X6.4MM R616...
  • Page 60 8 Electrical Parts List 8-2 Video PCB Parts Loc. No. Code No. Description Specification Remarks BD101 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD102 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD104 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD105 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 C101B 2401-000028 C-AL 10uF,20%,50V,GP,TP,5x11,5 C101G 2401-000028 C-AL 10uF,20%,50V,GP,TP,5x11,5...
  • Page 61 8 Electrical Parts List Loc. No. Code No. Description Specification Remarks IC101 1201-001315 IC-VIDEO AMP 2504,DIP,24P,300MIL,SINGLE IC103 BH13-00007A IC-HYBRID COLOR MONITOR,LM2439,TO-220-9L L101B 2701-001036 INDUCTOR-AXIAL 1.2uH,10%,4.2x9.8mm L101G 2701-001036 INDUCTOR-AXIAL 1.2uH,10%,4.2x9.8mm L101R 2701-001036 INDUCTOR-AXIAL 1.2uH,10%,4.2x9.8mm Q101B 0501-000140 TR-SMALL SIGNAL 2N5551,NPN,625mW,TO-92 Q101G 0501-000140 TR-SMALL SIGNAL 2N5551,NPN,625mW,TO-92 Q101R...
  • Page 62 SK103 3704-001014 SOCKET-CRT 12P,22.5PI,26.5PI,SN Others Loc. No. Code No. Description Specification Remarks BH03-10337W CRT-COLOR 15,0.28,M36KUK35X02(E/LP),SING DP15LS/LT BH03-10338J CRT-COLOR 14,0.28,M34QBH351X122,SINGLE DP14LS/LT MAGNET 3302-000006 MAGNET-RUBBER AF,14G,1620-1980G,0.58-0.9 ASS’Y PBA UNIT BH94-00045B ASSY,PCB DP15LS/LT BH94-00045C ASSY,PCB DP14LS/LT B/D ASS’Y BH98-00035B ASSY,PCB/MAIN DP15LS/LT BH98-00035C ASSY,PCB/MAIN...
  • Page 63 8 Electrical Parts List Memo 8-12 DP14L*/DP15L*...

  • Page 64: Block Diagram

    9 Block Diagrams DP14L*/DP15L*...
  • Page 65 9 Block Diagrams Memo DP14L*/DP15L*...

  • Page 66: Wiring Diagram

    10 Wiring Diagram MAIN PCB CRT Socket PCB IIC DATA IIC DATA CN105 CN202 IIC CLK IIC CLK Self-Raster CLAMP CLAMP CN201 H_Sync1 H_BLK H_BLK Signal Cable V_Sync1 12 V 12 V DDC DATA 6.3 V 6.3 V DDC CLK 70 V 70 V CN103...

  • Page 67: Schematic Diagrams

    11 Schematic Diagrams 11-1 Power Part Schematic Diagram MULTI-MEDIA 11-1 DP14L*/DP15L*...
  • Page 68 11 Schematic Diagrams 410 V (IC601, #1) 8.40 V (IC601, #5) CH1 ∆ = 410 V CH1 ∆ = 8.40 V CH1 RMS = 332.8 V CH1 RMS = 4.680 V DP14L*/DP15L* 11-2...
  • Page 69 11 Schematic Diagrams 11-2 Micom Part Schematic Diagram 11-3 DP14L*/DP15L*...
  • Page 70 11 Schematic Diagrams 5.92 V (IC201, #16, 17) 4.92 V (IC201, #14) 5.52 V (IC201, Keyin/out) 5.16 V (IC202, #3) CH1 P-P = 5.92 V CH1 RMS = 3.812 V CH1 P-P = 4.92 V CH1 RMS = 2.912 V CH1 P-P = 5.52 V CH1 RMS = 3.696 V CH1 P-P = 5.16 V...
  • Page 71 11 Schematic Diagrams 11-3 HOR./VER. Part Schematic Diagram TILT OPTION 11-5 DP14L*/DP15L*...
  • Page 72 11 Schematic Diagrams 5.12 V (IC401, #6) 4.60 V (IC401, #26) 1.12 V (IC401, #24) 3.16 V (IC401, #23) CH1 P-P = 5.12 V CH1 RMS = 4.256V CH1 P-P = 4.60 V CH1 RMS = 3.054 V CH1 P-P = 1.12 V CH1 RMS = 3.094 V CH1 P-P = 3.16 V CH1 RMS = 3.686 V...
  • Page 73 11 Schematic Diagrams 11-4 H_OUT Part Schematic Diagram 15" ONLY 11-7 DP14L*/DP15L*...
  • Page 74 11 Schematic Diagrams 28.4 V (Q501, Collector) 10.40 V (Q402, Base) 1.176 kV (Q402, Collector) 38.4 V (T501, #4) CH1 P-P = 28.4 V CH1 RMS = 15.55 V CH1 P-P = 10.40 V CH1 RMS = 1.664 V CH1 P-P = 1.176 kV CH1 RMS = 349.2 V CH1 P-P = 38.4 V CH1 RMS = 10.38 V 136 V (Q504, Drain)
  • Page 75 11 Schematic Diagrams 11-5 Video Part Schematic Diagram 11-9 DP14L*/DP15L*...
  • Page 76 11 Schematic Diagrams 3.16 V (IC101, #21) 43.2 V (IC103, #3) 35.2 V (SK103, G1) 5.60 V (IC101, #12) CH1 P-P = 3.16 V CH1 RMS = 1.008 V CH1 P-P = 43.2 V CH1 RMS = 63.56 V CH1 P-P = 35.2 V CH1 RMS = 80.84 V CH1 P-P = 5.60 V CH1 RMS = 4.908 V...
  • Page 77 11 Schematic Diagrams Memo 11-11 DP14L*/DP15L*...
  • Page 78 Samsung Electronics Co., Ltd. April 1999 Printed in Korea Code No.: BH68-00128A...

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