Manuale d’uso / di manutenzione del prodotto DP17LS/LT del fabbricante Samsung
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COLOR MONITOR DP15HS/HT DP17LS/L T Manual SER VICE COLOR MONITOR CONTENTS EXIT EXIT MENU 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. T roubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8.
Copyright © 1999 by Samsung Electronics Co., Ltd. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Samsung Electronics Co.
WARNINGS 1. For continued safety, do not attempt to modify the circuit board. 2. Disconnect the AC power before servicing. 3. When the chassis is operating, semiconductor heatsinks are potential shock hazards.
1. Servicing precautions are printed on the cabinet, and should be followed closely. 2. Always unplug the unitÕs AC power cord from the AC power source before attempting to: (a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect all test components in parallel with an electrolytic capacitor.
DP15H*/DP17L* 2-1 2 Product Specifications 2-1 Specifications Picture Tube: 15-Inch (38 cm): 13.8-inch (35 cm) viewable, 17-Inch (43 cm): 16-inch (40.6 cm) viewable, Full-square flat-face tube, 90˚ Deflection, Semi- tint, Non-glare, Invar shadow mask, Anti-static silica coating, 0.
2 Product Specifications 2-2 DP15H*/DP17L* 2-2 Pin Assignments 5 15 Figure 2-1. Male Type Figure 2-2. Male Type Sync Type Pin No. Macintosh Separate 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Red Green Blue .
2 Product Specifications DP15H*/DP17L* 2-3 QR S P O Video Sync Sync Horizontal Vertical CD E P O B A Video Sync Sync Separate Sync 2-3 T iming Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals.
2 Product Specifications 2-4 DP15H*/DP17L* Memo.
4-1-1 Before Making Adjustments 4-1-1 (a) ORIENTATION When servicing, always face the monitor to the east. 4-1-1 (b) MAGNETIC FIELDS Whenever possible, use magnetic field isolation equipment such as a Helmholtz field to surround the monitor. If a Helmholtz field is not available, frequently degauss the unit under test.
4-1-3 Connecting the SoftJig Connect the monitor to the signal generator and/ or PC as illustrated in Figures 4-1 and 4-2. Note: The signal cable connector which includes the 3-wire cable must connect to the monitor.
4-2-1 HIGH VOL T AGE ADJUSTMENT Signal: 1024 x 768 (68 kHz/85 Hz) (17Ó) 800 x 600 (54 kHz/85 Hz) (15Ó) Display image: DonÕt care Contrast: Minimum Brightness: Minimum Limit: 26.
Use control bar after selecting ÒH-SIZEÓ in left menu to adjust the horizontal size of the display pattern to 306 mm (17Ó) and 267 mm (15Ó). (Tolerance: ± 3 mm.
4-2-6 T rapezoid Adjustment CONDITIONS Scanning frequency: 68 kHz/85 Hz (17Ó) 54 kHz/85 Hz (15Ó) Display image: Crosshatch pattern Brightness: Maximum Contrast: Maximum Use control bar after selecting ÒTRAPEZOIDÓ in left menu to make the image area rectangular.
CAUTION :Check below condition before color adjustment Video signal : Analog 0.7 Vp-p (at 75 Ω ) Sync : TTL level (H, V seperate signal) * Select ÒColorÓ in Softjig menu for color adjustment. 4-3-1 Color Coordinates (T emperature) Color temperature is a measurement of the radiant energy transmitted by a color.
4-3-2 (d) WHITE BALANCE ADJUSTMENT VERIFICATION CONDITIONS Scanning frequency: 68 kHz/85 Hz (17Ó) 54 kHz/85 Hz (15Ó) Display image: Back raster pattern Full White Pattern X-Y Coordinates: x = 0.283 ± 0.02, y = 0.298 ± 0.02 ABL Luminance Refer to 4-3-2(c) Brightness: Maximum Contrast: 5 ft-L, 24 ft-L 1.
PROCEDURE For trained and experienced service technicians only. Use the following procedure to correct minor color purity problems: 1. Make sure the display is not affected by external magnetic fields. 2. Very carefully break the glue seal between the 2-pole purity convergence magnets (PCM), the band and the spacer (see Figures 4-12).
DP15H*/DP17L* 5-1 5 T roubleshooting 5-1 Parts Level T roubleshooting 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.
5 Troubleshooting 5-2 DP15H*/DP17L* 5-1-2 DPMS Failure Make No H/V sync (power off mode) Check signal source H/V sync video level. LED blinks Check IC201 Pin 40. Yes No +12 V line off Check IC201 Pin 5. Yes No IC602 Pin 4 voltage exists? Check IC201 Pin 6.
5 Troubleshooting DP15H*/DP17L* 5-3 5-1-3 H_Deflection Failure Does Horizontal paluse signal appear at at Pin 8 of IC401? Check IC401. Yes No Does 110 Vp-p signal appear at Collector of Q403? Check Q443. No No Check Q402, Q404, T401. WA VEFORMS 4 3 2.
5 Troubleshooting 5-4 DP15H*/DP17L* 5-1-5 H_Lin. Failure IC201 Pin 21 voltage varies with different H_Lin. DAC values? IC603 Pin 9 voltage varies with different H_Lin. DAC values? Check +12 V, –10 V line. Check some parts around IC603. Check Q412, Q413, T402.
5 Troubleshooting DP15H*/DP17L* 5-5 5-1-8 Side Pin or T rap Failure IC401 Pin 11 output exists? Yes Check and replace IC401. Refer to 5-1-7 Abnormal H_Size . 5-1-9 Para. or Pin Balance Failure IC401 Pin 11 output varies with different DAC values? No Replace IC401.
5 Troubleshooting 5-6 DP15H*/DP17L* 5-1-11 V Deflection Failure 13 V, –10 V line is on? IC401 Pin 12 output exists? Check and replace IC401. Yes Yes No Refer to 5-1-1 No Power Supply No IC301 Pin 6 output exists? Check and replace some parts around IC301.
5 Troubleshooting DP15H*/DP17L* 5-7 5-1-13 High V oltage Failure IC401 Pin 6 OSC pulse exists? Q402 Gate driving pulse exists? Check and replace Q401. Yes Yes No Check and replace IC401 and +12 V line. No Q402 Drain pulse exists? Check and replace Q403, L402.
5 Troubleshooting 5-8 DP15H*/DP17L* 5-1-15 Dynamic Focus Failure IC401 Pin 32 output is right? Some parts around Q551 are right? Replace failed part. Yes Yes No Replace the IC401. No T502 Pin 6 input is right? Check and replace C432. Yes No T502 Pin 1 output is right? Replace the T502.
5 Troubleshooting DP15H*/DP17L* 5-9 5-1-16 No Video IC101 Pins 5, 8 and 10 inputs are right? IC101 Pins 21, 24 and 26 outputs are right? Check I 2 C bus and +12 V line. Yes Yes No Check the signal cable connection. No IC103 Pins 1, 2 and 3 outputs are right? Check +12 V, +72 V line.
5 Troubleshooting 5-10 DP15H*/DP17L* 5-1-17 Micom Failure IC201 Pin 11 input voltage is 5V? IC201 Pins 13 and 14 inputs are right? Check C202, C203, X201. Yes Yes No Check IC604. No IC201 Pin 18 input is right? Check IC605. Yes No All in/output values are right? Replace IC201.
5 Troubleshooting DP15H*/DP17L* 5-11 5-1-18 OSD Failure IC104 Pin 6 input is right? IC104 Pin 17 input is right? Check and replace Q101. Check CN102 Pin 8. Yes Yes No Check and replace Q102. Check CN102 Pin 14. No IC104 Pins 7 and 8 inputs are right? Check IC201 Pins 41 and 42.
5 Troubleshooting 5-12 DP15H*/DP17L* 5-1-19 User Control Failure Does the DC level change at Pin 36 of IC201 when you push the button S/W? Yes Check the button. (SW201 ~ SW204) No Check IC201. RL601 operation is right? Q601 base input is right? Check and replace Q601.
5 Troubleshooting DP15H*/DP17L* 5-13 5-2 General T roubleshooting 5-2-1 No Picture LED blinks? LED is green color? Check Micom. Check G2 voltage, high voltage, R, G, B cathode voltage.
5 Troubleshooting 5-14 DP15H*/DP17L* 5-2-3 Missing Color Are proper Video levels on CN101 (D-Sub) Pins 1, 3 and 5? Are proper Video signal on all cathodes? Refer to 5-1-16 No Video. Yes Yes No Check signal generator. No Are proper DC voltage on all cathodes? Check IC101 Pins 15, 16 and 17.
5 Troubleshooting DP15H*/DP17L* 5-15 Is G2 voltage right? Is blank pulse on Pin 17 of IC401? Check IC401. Yes Yes No Check D502, D503, Q501 and Adjust G2. No Is V_FLB pulse on Collector of Q303? Check Q303. Done Yes No Does approve the Vertical pulse on the CRT Socket G1? Check CN102, CN201.
5 Troubleshooting 5-16 DP15H*/DP17L* Are signals right? Signals at Pins 28 and 29 of IC201 are right? Check IC201. Yes Yes No Check Video Cable No Signals at Pins 14 and 15 of IC401 are right? Check IC401 Check circuits on Main board. Yes Done No Check input signals Pins 2 and 3 of CN202.
5 Troubleshooting DP15H*/DP17L* 5-17 Is the convergence now within spec? Readjust convergence. No Done Yes Is the convergence now within spec? Done Change CRT and readjust convergence.
5 Troubleshooting 5-18 DP15H*/DP17L* Improved focus? Check focus leads from FBT to CRT Socket. Check the CRT Socket. No Aging monitor and check for focus change. Yes Is dynamic focus circuit right? Refer to 5-1-15 Dynamic Focus Failure. Replace the CRT and verify focus.
6 Exploded V iew and Parts List 6-1 DP15HS DP15H*/DP17L* 6-1.
6 Exploded View & Parts List 6-2 DP17LS 6-2 DP15H*/DP17L*.
6-1-1 Front Cover & CRT Ass’y (DP15HS) 6 Exploded View & Parts List DP15H*/DP17L* 6-3.
6-1-2 Chassis & Stand Ass’y (DP15HS) 6 Exploded View & Parts List 6-4 DP15H*/DP17L*.
6-1-3 Rear Cover Ass’y (DP15HS) 8 Exploded View & Parts List DP15H*/DP17L* 6-5.
6-2-1 Front Cover & CRT Ass’y (DP17LS) 6 Exploded View & Parts List 6-6 DP15H*/DP17L*.
6-2-2 Chassis & Stand Ass’y (DP17LS) 6 Exploded View & Parts List DP15H*/DP17L* 6-7.
6-2-3 Rear Cover Ass’y (DP17LS) 6 Exploded View & Parts List 6-8 DP15H*/DP17L*.
Loc. No. Code No. Description Specification Remarks BD301 3301-000011 CORE-FERRITEBEAD AA,3.5x1.0x5.7mm,1500 BD401 3301-000011 CORE-FERRITEBEAD AA,3.5x1.0x5.7mm,1500 BD402 3301-000011 CORE-FERRITEBEAD AA,3.5x1.0x5.7mm,1500 17” BD402 BH39-40305U CBF-HARNESS 52MM,AWG22(0.
C413 2401-001012 C-AL 3.3UF,20%,50V,BP,TP,16X25,7.5 C414 2401-001334 C-AL 470nF,20%,50V,GP,TP,5x11,2.5 C415 2401-001218 C-AL 4.7uF,20%,100V,WT,TP,5x11,5 17” C415 2401-000043 C-AL 1uF,20%,160V,GP,TP,6.3x11,5 15” C416 2301-000010 C-FILM,PEF 100nF,5%,100V,TP,11.
Loc. No. Code No. Description Specification Remarks C604 2201-000023 C-CERAMIC,DISC 2.2nF,20%,125V,Y5U,TP,11 C607 2202-002009 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5 C608 2401-003367 C-AL 180uF,20%,400V,GP,BK,25x35mm,1 C609 2401-000971 C-AL 22uF,20%,50V,WT,TP,6x11mm,5mm C610 2301-000284 C-FILM,PEF 47nF,5%,100V,TP,8.
D407 0402-001118 DIODE-RECTIFIER UF1G,400V,1.2A,DO-204AL D408 0402-001255 DIODE-RECTIFIER DTV56F,1500V,10A,TO-220A 17” D409 0402-001256 DIODE-RECTIFIER SUF30JL,600V,3A,P600,BK D410 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.0A,DO-41,T D411 0402-000546 DIODE-RECTIFIER TVR10G,400V,1.
Loc. No. Code No. Description Specification Remarks HS501 BH99-00001B ASSY,HEAT/SINK H/SFBT,SPRING,KA5802,DTV5 17” HS501 BH99-00001A ASSY,HEAT/SINK H/SFBT,SPRING,KA5802,DTV3 15” HS601 BH99-00003A ASSY,HEAT/SINK H/SPOWER,SPRING,DP104 IC201 BH09-00006A MICOM MASKING DM024, 42P IC201_SOCK 3704-001071 SOCKET-IC 42P,DIP,SN,1.
R201 2001-000786 R-CARBON 47KOHM,5%,1/8W,AA,TP,1.8X3.2MM R202 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM R203 2001-000786 R-CARBON 47KOHM,5%,1/8W,AA,TP,1.8X3.2MM R204 2001-000786 R-CARBON 47KOHM,5%,1/8W,AA,TP,1.8X3.2MM R206 2001-000515 R-CARBON 220OHM,5%,1/8W,AA,TP,1.
Loc. No. Code No. Description Specification Remarks R316 2001-000281 R-CARBON 100OHM,5%,1/8W,AA,TP,1.8X3.2MM R317 2001-000561 R-CARBON 27KOHM,5%,1/4W,AA,TP,2.4X6.4MM R318 2001-000766 R-CARBON 43KOHM,5%,1/8W,AA,TP,1.8X3.2MM R319 2001-000947 R-CARBON 7.
R431 2005-001071 R-WIREWOUND 0.82OHM,5%,3W,AA,TP,5.5X15M 15” R432 2001-000020 R-CARBON(S) 22OHM,5%,1/2W,AA,TP,2.4X6.4M R434 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.8X3.2MM R435 2001-000786 R-CARBON 47KOHM,5%,1/8W,AA,TP,1.8X3.2MM R436 2001-000290 R-CARBON 10KOHM,5%,1/8W,AA,TP,1.
Loc. No. Code No. Description Specification Remarks R518 2001-001031 R-CARBON 91KOHM,5%,1/8W,AA,TP,1.8X3.2MM R519 2001-000356 R-CARBON 150KOHM,5%,1/8W,AA,TP,1.8X3.2MM R520 2001-000241 R-CARBON 1.5KOHM,5%,1/8W,AA,TP,1.8X3.2MM R520 2001-000472 R-CARBON 2.
R633 2001-000211 R-CARBON 1OHM,5%,1/4W,AA,TP,2.4X6.4MM RL601 3501-001111 RELAY-POWER 12Vdc,250mW,5A,1FormA,15mS,5 SK501 4715-000001 SURGEABSORBER 1KV,+50-10%, SW201 3404-000244 SWITCH-TACT 15V,20mA,90-170gf,7.5x7mm,SP SW202 3404-000244 SWITCH-TACT 15V,20mA,90-170gf,7.
Loc. No. Code No. Description Specification Remarks BD102 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 BD103 3301-000011 CORE-FERRITE BEAD AA,3.5x1.0x5.7mm,1500 C101 2202-002009 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5 C102 2401-001334 C-AL 470nF,20%,50V,GP,TP,5x11,2.
DB03 0401-000004 DIODE-SWITCHING 1SS244,250V,200mA,DO-34 DB04 0401-000004 DIODE-SWITCHING 1SS244,250V,200mA,DO-34 DB05 0401-000005 DIODE-SWITCHING 1N4148,75V,200MA,DO-35,T DG01 0401-000005 DIODE-SWITC.
Loc. No. Code No. Description Specification Remarks R141 2001-000005 R-CARBON 390OHM,5%,1/8W,AA,TP,1.8X3.2MM R142 2001-000005 R-CARBON 390OHM,5%,1/8W,AA,TP,1.8X3.2MM R143 2001-000005 R-CARBON 390OHM,5%,1/8W,AA,TP,1.8X3.2MM R144 2001-000005 R-CARBON 390OHM,5%,1/8W,AA,TP,1.
7 Electrical Parts List DP15H*/DP17L* 7-14 CRT BH03-00005A CRT-COLOR 0.28,M36LGE128X208(F1M1),SINGLE 15” BH03-10341F CRT-COLOR 0.28,M36LGE128X206,SINGLE 15” BH03-00015A CRT-COLOR 0.
7 Electrical Parts List 7-15 DP15H*/DP17L* 7-3 Different Parts List (CDT).
Memo 7 Electrical Parts List DP15H*/DP17L* 7-16.
8 Block Diagrams DP15H*/DP17L* 8-1 S C R E E N RGB VIDEO BOARD TO D-COIL ON THE CRT VIDEO INPUT H/V SYNC VIDEO OUTPUT IC103(LM2437) RGB - CUTOFF QR, G,B01,02 G1 HEA TER VIDEO PRE-AMP + OSD IC101(KA2506) IC104(KA2501) SOCKET FBT T501 H/V SIZE REG. VERTICAL FOCUS HOR.
Memo 8 Block Diagrams 8-2 DP15H*/DP17L*.
DP15H*/DP17L* 9-1 1 2 3 H + V + 4 V– 1 2 3 1 2 3 (YEL)V+ NC (Brown)V – V + NC V – CN401 1 2 AC AC 1 2 AC AC 1 2 3 AC INPUT NC AC INPUT TIL T 9 10 11 12 13 1 2 3 4 5 6 7 8 FBT 15 PIN D-SUB refer to pin assignment of product spec.
10-1 DP15H*/DP17L* 10 Schematic Diagrams 10-1 SMPS Part Schematic Diagram.
10 Schematic Diagrams DP15H*/DP17L* 10-2 1 2 3 4 5 285 V 0.8 mV 18.1 V 1.51 V 4.98 V 286 V 0.6 mV 18.0 V 2.01 V 4.98 pin # MODES 1024 x 768 / 85 Hz 640 x 480 / 60 Hz Table 10-1. IC601 (DP104C) Unit: Vrms 1 2 3 4 13.57 V 12.05 -17.0 mV 4.99 V 13.50 12.
10 Schematic Diagrams 10-3 DP15H*/DP17L* 10-2 Micom Part Schematic Diagram.
10 Schematic Diagrams DP15H*/DP17L* 10-4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 5.01 V 5.01 V 5.01 V -4.9 mV 5.00 V 4.9 V 31.2 mV 7.96 mV 9.1 mV 9.9 mV 5.12 V 15.3 mV 1.13 V 1.68 V 15.5 mV 4.13 mV ~ 3.9 V 3.66 V 4.99 V 4.31 V 2.49 V 2.44 0.
10 Schematic Diagrams 10-5 DP15H*/DP17L* 10-3 H/V OSC & V ertical Part Schematic Diagram.
10 Schematic Diagrams DP15H*/DP17L* 10-6 pin # 1 2 3 4 5 6 7 8 9 10 0.64 13.2 1.5 mV -10.5 -11.0 -3.9 mV 0 mV 0.1 mV 12.9 V 0.64 V 0.64 13.0 0.1 mV -10.6 -10.9 -1.6 mV 0.1 mV 0.1 mV 12.6 V 0.64 V pin # MODES 800 x 600 / 85 Hz 640 x 480 / 60 Hz Table 10-5.
10 Schematic Diagrams 10-7 DP15H*/DP17L* 10-4 Deflection Part Schematic Diagram.
10 Schematic Diagrams DP15H*/DP17L* 10-8 13 50.0 V (T502, #6) CH1 P-P = 50.0 V CH1 RMS = 75.6 V 14 100 V (T502, #1) CH1 P-P = 100 V CH1 RMS = 124.0 V 11 50.0 V (Q402, Drain) CH1 P-P = 50.0 V CH1 RMS = 73.7 V 10 2.00 V (Q402, Gate) CH1 P-P = 2.00 V CH1 RMS = 7.
10 Schematic Diagrams 10-9 DP15H*/DP17L* 10-5 Video Part Schematic Diagram.
10 Schematic Diagrams DP15H*/DP17L* 10-10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 4.6 mV 4.5 mV 4.4 mV 4.0 mV 2.42 V 11.8 V 1.06 mV 2.42 V 11.85 V 2.41 V 1.44 mV 4.22 V 5.11 V 5.11 V 3.2 mV 3.2 mV 3.0 mV 2.8 mV 2.45 V 11.8 V 1.0 mV 2.44 V 11.8 V 2.43 V 1.39 mV 4.
10 Schematic Diagrams 10-11 DP15H*/DP17L* Memo.
Samsung Electronics Co., Ltd. May 1999 Printed in Korea Code No.: BH68-00129A.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Samsung DP17LS/LT è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Samsung DP17LS/LT - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Samsung DP17LS/LT imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Samsung DP17LS/LT ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Samsung DP17LS/LT, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Samsung DP17LS/LT.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Samsung DP17LS/LT. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Samsung DP17LS/LT insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
