Samsung CA17J Series Service Manual Download Page 51

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CONFIDENTIAL

5 Troubleshooting

CA17K*/CA17J*

5-15

G2 voltage is right?

Blank pulse is on Pin 17 of IC401?

Check IC401.

Yes

Check D502, D518, Q501, Adjust G2.

V_FLB pulse is on

Collector of Q501?

Check Blank pulse is on

Pin 17 of IC401 and Q303.

Done.

Yes

Does approve the Vertical pulse

on the CRT Socket G1?

Check CN102 and CN201.

Yes

Check white balance adjustment.

5-2-4 Visible Retrace

WAVEFORMS

5.00V (Q501, Emitter)

CH1 P-P = 5.00V

CH1 RMS = 28.33V

20.00V (CRT Socket, G1)

CH1 P-P = 20.0V

CH1 RMS = 66.68V

Summary of Contents for CA17J Series

Page 1: ...LOR MONITOR CONTENTS 1 Precautions 2 Product Specifications 3 Disassembly Reassembly 4 Alignment Adjustments 5 Troubleshooting 6 Exploded View Parts List 7 Electrical Parts List 8 Block Diagram 9 Wiring Diagram 10 Schematic Diagrams CONFIDENTIAL ...

Page 2: ... 2 Inspect all protective devices such as nonmetallic control knobs insulating materials cabinet backs adjustment and compartment covers or shields isolation resistor capacitor networks mechanical insulators etc 3 Leakage Current Hot Check Figure 1 1 WARNING Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies with American National S...

Page 3: ...Signal Separate Sync TTL level positive negative Maximum Pixel Clock rate 110 MHz 185 MHz Active Display Horizontal 312 mm 4 mm Vertical 234 mm 4 mm Input Voltage AC 90 264 Volts 60 Hz or 50 Hz 3 Hz Power Consumption 90 Watt max 100 Watt max Dimensions W x D x H Unit 15 7 x 16 2 x 15 7 Inches 398 x 412 x 400 mm Carton 20 4 x 22 8 x 18 42 Inches 517 x 580 x 468 mm Weight Net Gross 35 1 lbs 15 9kg 4...

Page 4: ...the monitor till it makes a ttak sound 2 grooves Left and Right Make sure each snap is disengaged 5 Pull the Rear Cover up off the monitor CA17K CA17J 3 1 CONFIDENTIAL 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the CA17K CA17J monitor WARNING This monitor contains electrostatically sensitive devices Use with caution when ...

Page 5: ...he following equipment may be necessary for adjustment procedures 4 1 2 a DISPLAY CONTROL ADJUSTMENT 1 Non metallic screwdriver 1 5 2 5 3 mm 2 Non metallic screwdriver 1 5 2 5 3 mm 3 Digital Multimeter DMM or Digital Voltmeter 4 Signal generator or DM200 software 5 Personal computer 4 1 2 b COLOR ADJUSTMENTS 1 All equipment listed in 4 1 2 a above 2 Color analyzer or any luminance measurement equi...

Page 6: ...op Horizontal output circuits 5 1 1 No Power Supply Chirping noise exists Check and replace IC601 Check and replace D601 and FH1 Done No Yes Repeating start Check and replace D606 No Yes IC601 Pin 1 waveform is right Check and replace D614 IC601 Q602 and ZD601 Yes No C622 Voltage is 13 V 0 5V Check and replace IC201 IC301 IC401 Q402 and Q404 Yes Yes No Operate normally Replace Main board Verify vo...

Page 7: ...CONFIDENTIAL CA17K CA17J 6 1 6 Exploded View and Parts List ...

Page 8: ...4856 SDIP 32P 400MIL PLASTIC 16V 20to 70C ST H VDEF PROCESSOR IC602 1203 000165 IC POSI ADJUST REG 78R12 TO 220 4P PLASTIC 11 7 12 3V 1 5W 20TO 80C 1A ST IC604 1203 000001 IC POSI FIXED REG 7805 TO 220 3P PLASTIC 4 8 5 JW2 BH39 40306D CBF HARNESS 80MM BLK 1015 AWG22 L401 BH27 00005A COIL CHOKE CH 0630 120uH 10 AR 06 30 PHENAL 0 20 37 0 16 2 BULK L402 BH27 00022A COIL CHOKE CH 1523S 100uH 10 DR1523...

Page 9: ...8 Block Diagrams CA17K CA17J 8 1 CONFIDENTIAL ...

Page 10: ... V H H V V YELLOW BROWN RED BLUE YELLOW BROWN RED BLUE FOCUS1 WHT FOCUS2 RED CN304 1 2 1 2 GND KEY GND KEY BLUE BLUE WHITE WHITE CN204 CN501 CN201 GND HS IN DDC CLK DDC 5V S RASTER DDC DATA VS IN 1 2 3 4 5 6 7 CN202 CONTROL PCB SIGNAL CABLE GND HS IN DDC CLK DDC 5V S RASTER DDC DATA VS IN 1 2 3 4 5 6 7 80 V GND 6 3 V IICCLK GND G1 12 V V SYNC V_BLK ACL IICDATA AFC BLANK 1 2 3 4 5 6 CN101 R GND GND...

Page 11: ... 13V_2 Vcc 3 100 R217 1 6W IC601 DP104C DRAIN 1 F_B 4 GND 2 SYNC 5 G S 1 8W 2 2K R205 IRF640A Q411 D D609 C447 330pF 500V MP 63V 220nF C302 321DF4 UZ6 2BSB ZD207 14 C514 470nF 50V 12V 4 5 6 7 8 9 10 11 12 13 T501 1 2 3 D420 1N4148 EYE1 5 1 R407 470 1 2W EYE1 5 EY511 1 EY512 Q301 2N3904 B C E 50V 4 7uF C207 R604 D511 1N4148 R526 1 8W 560 C611 1 8W 18K UZ6 2BSB ZD209 1uF 50V C602 150nF 275VAC Q401 B...

Page 12: ...Samsung Electronics Co Ltd CA17K CA17J Service Manual First edition January 2002 Printed in Korea Trademarks Samsung is the registered trademark of Samsung Electronics Co Ltd CA17K CA17J and MacMaster Cable Adapter are trademarks of Samsung Electronics Co Ltd Macintosh Centris Quadra Duo Douk and Power Macintosh are trademarks of Apple Computer Inc All other trademarks are the property of their re...

Page 13: ...r CH1 P P 200V CH1 RMS 387 2V 7 1 00 V IC401 11 CH1 P P 1 00V CH1 RMS 3 008 V 8 500 V IC401 12 CH1 P P 500 V CH1 RMS 1 425 V 9 10 0 V IC301 6 CH1 P P 10 0 V CH1 RMS 5 06 V 10 2 00 V Q402 Gate CH1 P P 2 00 V CH1 RMS 7 692V 13 50 0 V T502 6 CH1 P P 50 0V CH1 RMS 75 6V 14 100 V T502 1 CH1 P P 100V CH1 RMS 124 0V 21 1 00 V IC201 13 14 CH1 P P 1 00 V CH1 RMS 2 108V 25 5 00V Q501 Emitter CH1 P P 5 00V C...

Page 14: ... SK108 SSG 102B2 330 1 10W R139 C105 4 7uF 50V RB01 75 1 10W VOUT2 5 VOUT3 12V_A CG02 100nF 25V MO IC105 7 GND 2 GND1 4 GND2 VBB 10 VCC 6 11 VIN1 9 VIN2 8 VIN3 1 VOUT1 3 DMS 200D SKR01 LM2413T 100V 470nF CR06 MP DR03 1SS244 RR08 1 10W 22 RR07 1 10W 18K B C130 MO 50V 100PF BD106 1 2UH 3 5 5 7MM R143 330K 1 4W RR09 R123 1 10W 1 5K 220 1 10W 1K 1 2W 50V MO RG11 16V 100uF C122 5V CR10 15PF L104 100uH ...

Page 15: ...7J 15 1 00 V IC102 5 8 10 16 1 00 V IC102 25 28 30 17 20 0 V IC105 1 3 5 23 1 00 V IC103 20 21 22 22 1 00 V IC103 5 24 CH1 P P 1 00V CH1 RMS 4 516V 24 10 0 V R G B Video CH1 P P 10 0V CH1 RMS 17 02V 26 20 00V CRT Socket G1 CH1 P P 20 0V CH1 RMS 66 68V ...

Page 16: ...25V 1 10W 3 9K R141 330 1 10W R101 1 10W 6 8K 5V P CB05 100nF 100V 50V MO 1K 1 2W CR10 15PF 16V 100UF RG11 C125 2 7nF C148 CG05 P 100V 100nF 2KV CR05 100nF 100V P MO CB04 100nF 25V B CB10 15PF 50V MO 1 10W 1 2UH 3 5 5 7MM BD104 CN_GTP1 1 1K R132 L107 1 5uH 50V 100nF C102 B CR02 100nF 25V MO 1 2UH 3 5 5 7MM BD115 100 1 10W R104 LR11 180NH RG08 RG06 1 10W 22 22 1 10W 1 10W 220 RR10 1SS244 1 10W 100 ...

Page 17: ...0 V IC102 25 28 30 17 20 0 V IC105 1 3 5 18 1 00 V IC101 20 22 24 23 1 00 V IC103 20 21 22 19 1 00 V IC101 14 20 1 00 V IC101 15 22 1 00 V IC103 5 24 CH1 P P 1 00V CH1 RMS 4 516V 24 10 0 V R G B Video CH1 P P 10 0V CH1 RMS 17 02V 26 20 00V CRT Socket G1 CH1 P P 20 0V CH1 RMS 66 68V ...

Page 18: ...9 PCB Diagrams 9 2 CA17K CA17J CONFIDENTIAL Memo ...

Page 19: ...CONFIDENTIAL Memo 8 Block Diagrams 8 2 CA17K CA17J ...

Page 20: ...5 000665 C FILM MPEF 100nF 5 63V TP 7 5x4 0x5 0mm C302 2305 001041 C FILM MPEF 220nF 5 63V TP 7 5x4 5x13 5 5 C305 2401 000037 C AL 470uF 20 16V GP TP 8x11 5 5 C306 2401 002274 C AL 220uF 20 35V WT TP 10x12 5 5 C307 2305 000237 C FILM MPEF 1uF 5 63V TP 7 5x15 5mm 5mm C308 2301 000013 C FILM PEF 4 7nF 5 100V TP 10 5x12 5x6 5 C309 2202 000252 C CERAMIC MLC AXIAL 4 7nF 10 50V X7R TP 2 5x4 3 C310 2301 ...

Page 21: ...F 5 63V TP 7 5x4 5x13 5 5 C507 2201 000291 C CERAMIC DISC 1nF 10 500V Y5P TP 7 5x3 5 5 C508 2201 000291 C CERAMIC DISC 1nF 10 500V Y5P TP 7 5x3 5 5 C509 2401 002267 C AL 2 2uF 20 250V GP TP 8x11 5 5 C510 2301 000020 C FILM PEF 27nF 5 100V TP 7 3x4x12 5mm 5 C511 2301 000519 C FILM PEF 3 3nF 5 100V TP 5 8x3x12 5 5m C512 2201 000291 C CERAMIC DISC 1nF 10 500V Y5P TP 7 5x3 5 5 C513 2201 000291 C CERAM...

Page 22: ...IODE RECTIFIER TVR10G 400V 1 0A DO 41 TP D413 0402 000546 DIODE RECTIFIER TVR10G 400V 1 0A DO 41 TP D414 0401 000005 DIODE SWITCHING 1N4148 100V 200mA DO 35 TP D415 0401 000005 DIODE SWITCHING 1N4148 100V 200mA DO 35 TP D416 0401 000005 DIODE SWITCHING 1N4148 100V 200mA DO 35 TP D420 0401 000005 DIODE SWITCHING 1N4148 100V 200mA DO 35 TP D421 0401 000005 DIODE SWITCHING 1N4148 100V 200mA DO 35 TP ...

Page 23: ...ET ID2 2 OD2 7 L3 1 SN BSS3 E EH SNA EY604 6042 000001 EYELET ID2 2 OD2 7 L3 1 SN BSS3 E EH SNA EY605 6042 000001 EYELET ID2 2 OD2 7 L3 1 SN BSS3 E EH SNA EY606 6042 000001 EYELET ID2 2 OD2 7 L3 1 SN BSS3 E EH SNA EY607 6042 000002 EYELET ID1 5 OD2 L3 1 SN BSS3 E EH SNA EY608 6042 000002 EYELET ID1 5 OD2 L3 1 SN BSS3 E EH SNA EY609 6042 000002 EYELET ID1 5 OD2 L3 1 SN BSS3 E EH SNA EY610 6042 0000...

Page 24: ...ARNESS 52MM AWG22 0 6PI AWG22 0 JP3 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP31 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP32 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP34 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP35 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP36 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP4 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI ...

Page 25: ...01 000303 TR SMALL SIGNAL KSA733 PNP 250mW TO 92 TP 120 240 Q551 0501 000413 TR SMALL SIGNAL KSP44 NPN 625mW TO 92 TP 50 200 Q601 0501 000586 TR SMALL SIGNAL KSC945 NPN 250mW TO 92 TP 120 240 Q602 0501 000122 TR SMALL SIGNAL 2N3904 NPN 625mW TO 92 TP 100 300 Q604 0501 000404 TR SMALL SIGNAL KSD1616 Y NPN 750mW TO 92 TP 135 270 Q607 0501 000581 TR SMALL SIGNAL 2N3906 PNP 625mW TO 92 TP 100 300 Q608...

Page 26: ... 1 8X3 2MM R401 2001 001096 R CARBON S 2 2OHM 5 1 2W AA TP 2 4X6 4MM R402 2001 000869 R CARBON 56OHM 5 1 8W AA TP 1 8X3 2MM R403 2004 001226 R METAL 750ohm 1 1 4W AA TP 2 4x6 4mm R404 2004 000498 R METAL 2 7Kohm 1 1 4W AA TP 2 4x6 4m R405 2001 000591 R CARBON 3 3KOHM 5 1 8W AA TP 1 8X3 2MM R406 2001 000522 R CARBON 22KOHM 5 1 8W AA TP 1 8X3 2MM R407 2001 000109 R CARBON S 470OHM 5 1 2W AA TP 2 4X6...

Page 27: ... AA TP 1 8X3 2MM R502 2004 000979 R METAL 47Kohm 1 1 4W AA TP 2 4x6 4mm R504 2001 000008 R CARBON 15KOHM 5 1 8W AA TP 1 8X3 2MM R505 2004 000344 R METAL 15Kohm 1 1 4W AA TP 2 4x6 4mm R506 2004 000643 R METAL 270Kohm 1 1 4W AA TP 2 4x6 4m R507 2004 000216 R METAL 10Kohm 1 1 4W AA TP 2 4x6 4mm R508 2001 001129 R CARBON S 330KOHM 5 1 2W AA TP 2 4X6 4MM R509 2001 001129 R CARBON S 330KOHM 5 1 2W AA TP...

Page 28: ...AA TP 1 8X3 2MM R630 2001 000786 R CARBON 47KOHM 5 1 8W AA TP 1 8X3 2MM R631 2001 001088 R CARBON S 1KOHM 5 1 2W AA TP 2 4X6 4MM R632 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R641 2003 000744 R METAL OXIDE S 56ohm 5 2W AA TP 4x12mm R642 2001 000016 R CARBON S 1OHM 5 1 2W AA TP 2 4X6 4MM SDI_CDT BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 SK501 4715 000001 SURGE ABSORBER 1KV 50 10 TP...

Page 29: ...SP BH M3 L10 ZPC YEL SWRCH SNA CIS 6021 000118 NUT HEXAGON 1C M3 ZPC YEL SM20C SNA CIS BH62 30024A HEAT SINK TR SPC T1 SN CFX1577L SNA HS402 BH99 00010A ASSY HEAT SINK HS TR SPRING IRF634A OIL SILICON SNA CIS BH61 00004A SPRING TR CDA CDB SUS304 T0 5 SNA CIS BH62 00016A HEAT SINK TR A1050S T1 0 DP17MO SNA HS501 BH99 00033C ASSY HEAT SINK HS FBT SPRING 2SC5583 DTV56F KTD2058 OIL MICA SNA CIS 0402 0...

Page 30: ...2 C139 2203 000204 C CERAMIC CHIP 100nF 10 25V X7R TP 2012 C145 2203 001105 C CERAMIC CHIP 6 8nF 10 50V X7R TP 2012 C147 2203 000204 C CERAMIC CHIP 100nF 10 25V X7R TP 2012 CB01 2203 000204 C CERAMIC CHIP 100nF 10 25V X7R TP 2012 CB02 2203 000204 C CERAMIC CHIP 100nF 10 25V X7R TP 2012 CB04 2203 000204 C CERAMIC CHIP 100nF 10 25V X7R TP 2012 CB10 2203 000389 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 201...

Page 31: ...CHIP 330OHM 5 1 10W DA TP 2012 R141 2007 000766 R CHIP 330OHM 5 1 10W DA TP 2012 R142 2007 000766 R CHIP 330OHM 5 1 10W DA TP 2012 R143 2007 000572 R CHIP 220OHM 5 1 10W DA TP 2012 R144 2007 000710 R CHIP 3 9KOHM 5 1 10W DA TP 2012 R145 2007 008393 R CHIP 11MOHM 5 0 100W DA TP 2012 RB01 2007 001166 R CHIP 75OHM 5 1 10W DA TP 2012 RB02 2007 000593 R CHIP 22OHM 5 1 10W DA TP 2012 RB04 2007 000931 R ...

Page 32: ... C148 2401 000042 C AL 100uF 20 16V GP TP 6 3x7 5 C149 2401 000025 C AL 100uF 20 16V GP TP 6 3x11 5 CB05 2301 000010 C FILM PEF 100nF 5 100V TP 11 5x12 5mm 5 CB06 2305 000407 C FILM MPEF 470nF 5 100V TP 5mm CG05 2301 000010 C FILM PEF 100nF 5 100V TP 11 5x12 5mm 5 CG06 2305 000407 C FILM MPEF 470nF 5 100V TP 5mm CN_G2 BH71 40300A PIN HINGE BRASS D2 36 SN HEAT SINK SNA CN_GND BH71 40300A PIN HINGE ...

Page 33: ... HARNESS 52MM AWG22 0 6PI AWG22 0 JP53 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP54 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP55 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP57 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP61 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP62 BH39 40305U CBF HARNESS 52MM AWG22 0 6PI AWG22 0 JP66 BH39 40305U CBF HARNESS 52MM AWG22 0 ...

Page 34: ...000643 R CARBON 330KOHM 5 1 4W AA TP 2 4X6 4MM RG11 2001 001088 R CARBON S 1KOHM 5 1 2W AA TP 2 4X6 4MM RG12 2001 000705 R CARBON 39OHM 5 1 2W AA TP 3 3X9MM RR03 2001 000766 R CARBON 43KOHM 5 1 8W AA TP 1 8X3 2MM RR09 2001 000643 R CARBON 330KOHM 5 1 4W AA TP 2 4X6 4MM RR11 2001 000109 R CARBON S 470OHM 5 1 2W AA TP 2 4X6 4MM RR12 2001 000705 R CARBON 39OHM 5 1 2W AA TP 3 3X9MM SK104 1405 001064 S...

Page 35: ...CONFIDENTIAL 7 Electrical Parts List CA17K CA17J 7 17 7 4 Main Different Part List ...

Page 36: ...7 Electrical Parts List 7 18 CA17K CA17J CONFIDENTIAL 7 5 Video Different Part List ...

Page 37: ...6 Exploded View Parts List 6 2 CA17K CA17J CONFIDENTIAL Memo ...

Page 38: ...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 6 Yes No IC601 Pin 1 output voltage exists Refer to 5 1 1 No Power Supply Done Yes No 2 WAVEFORMS 2 100 V IC601 1 CH1 P P 100 V CH1 RMS 325 8 V ...

Page 39: ...l appear at Pin 6 B_out of IC401 Check IC401 Check 12 V line Yes No Does DC 12V appear at Pin 10 of IC401 Yes No 3 5 1 4 S Correction Failure S1 S4 signals are right at each frequency block Check S1 S4 signal Check and replace Q404 Q409 Q410 Q411 Q414 Q415 Q416 Q420 and Q421 Yes Check and replace IC201 No 5 3 2 00 V IC401 6 CH1 P P 2 00V CH1 RMS 5 868V 4 2 00V IC401 8 CH1 P P 2 00V CH1 RMS 5 868V ...

Page 40: ...e H_Size IC401 Pin 6 voltage varies with different B_Out DAC values Q402 Gate output duty varies with different B_Out DAC values Check some parts around Q402 IC401 Pin 3 6 Yes No Check and replace IC401 No 5 1 7 Abnormal H_Size IC401 Pin 11 output duty varies with different B offset DAC values Q404 Collector waveform is right Check and replace Q405 Q406 Q407 and Q408 Check some parts around D409 a...

Page 41: ... output varies with different DAC values No Replace IC401 No 7 5 1 10 Tilt Failure IC201 Pin 20 output duty varies with different DAC values IC603 Pin 13 output varies with different DAC values Check and replace IC603 Check and replace Q301 and Q302 Yes Yes No Check and replace IC201 No Check tilt connector connection Refer to 5 1 7 Abnormal H_Size Yes 7 1 00 V IC401 11 CH1 P P 1 00V CH1 RMS 3 008...

Page 42: ...r Supply No IC301 Pin 6 output exists Check and replace some parts around IC301 Yes No Check DY connector connection 8 9 5 1 12 V Size or Position Variation Failure IC401 Pin 12 output varies with different DAC values Yes Check and replace IC201 and IC401 Check and replace IC301 No 8 500 V IC401 12 CH1 P P 500 V CH1 RMS 1 425 V 9 10 0 V IC301 6 CH1 P P 10 0 V CH1 RMS 5 06 V WAVEFORMS ...

Page 43: ... No Done 10 3 IC101 Pin 8 input exists and varies with different patterns Check and replace IC101 Input full white pattern to monitor Yes No T501 Pin 8 output exists Check and replace T501 Yes No IC201 Pin 26 output exists and varies with different patterns Check and replace IC201 Yes No Done Check CN102 5 1 14 ABL Failure 11 3 2 00 V IC401 6 CH1 P P 2 00 V CH1 RMS 5 868 V 10 2 00 V Q402 Gate CH1 ...

Page 44: ...t 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 Yes No Check the connection between FBT Focus pin and CRT Socket PCB 13 14 12 12 2 00 V IC401 32 CH1 P P 2 00V CH1 RMS 6 124V 13 50 0 V T502 6 CH1 P P 50 0V CH1 RMS 75 6V 14 100 V T502 1 CH1 P P 100V CH1 RMS 124 0V WAVEFORMS ...

Page 45: ...nection No IC105 Pin 1 3 and 5 outputs are right Check 12 V 80 V line Check and replace IC105 Yes No Cathode DC levels are right Check 80 V line Check and replace IC104 Check IC102 Pin 19 20 21 Yes No G2 voltage is right Check G2 wire CRT Socket board and FBT Change CRT Yes Done No Check signal cable and connection 15 16 17 Yes WAVEFORMS 15 1 00 V IC102 5 8 10 16 1 00 V IC102 25 28 30 17 20 0 V IC...

Page 46: ... IC101 Pin 14 15 and V_FLB CLAMP waveforms are right Check CLAMP V_FLB waveforms No Done 18 19 20 WAVEFORMS 18 1 00 V IC101 20 22 24 19 1 00 V IC101 14 20 1 00 V IC101 15 5 1 18 Micom Failure IC201 Pin 11 input voltage is 5V IC201 Pin 13 and 14 inputs are right Check C202 C203 and X201 Yes Yes No Check IC604 No IC201 Pin 18 input is right Check IC605 and 5V Yes No All in output values are right Re...

Page 47: ...Check IC103 Pin 7 8 I2 C Data Clock Line Check I 2 C wavefroms Yes Yes No Check 5V Line No IC103 Pin 6 and 17 inputs are right Check H FLB 2 V_BLK Yes No IC103 Pin 20 21 and 22 outputs are right Check and replace IC101 Check and replace IC103 Yes Done No 22 23 WAVEFORMS 22 1 00 V IC103 5 24 CH1 P P 1 00V CH1 RMS 4 516V ...

Page 48: ...you push the button S W Yes Check the button SW201 SW204 No Check IC201 CN2 and CN206 RL601 operation is right Q601 base input is right Check 13V Line Check and replace Q601 No No Yes Check D coil and TH601 Yes IC201 Pin 4 output is right Check and replace IC201 Yes No Done Check degaussing connector 5 1 21 Degaussing Failure ...

Page 49: ...Micom Check G2 voltage high voltage and R G B cathode voltage No No Yes Refer to 5 2 2 Shut down Yes 5 2 2 Shut Down Blinking LED s Scan failure Check horizontal vertical deflection system and check power supply secondary voltages Yes Yes Check power supply No Check and replace IC201 Done No Video failure Check Video board No Yes ...

Page 50: ...k signal generator No Proper DC voltage is on all cathodes Check IC101 Pin 18 21 and 24 Check QR01 QR02 QG01 QG02 QB01 and QB02 Yes Yes No G2 voltage is right Check D502 D518 Q501 D520 D521 and CN501 No Heater voltage is right Check D608 Q604 and T601 No Yes Is G2 voltage right Check D504 Q502 and T501 No Yes Yes Yes No Replace CRT Done 24 WAVEFORMS 24 10 0 V R G B Video CH1 P P 10 0V CH1 RMS 17 0...

Page 51: ...2 No V_FLB pulse is on Collector of Q501 Check Blank pulse is on Pin 17 of IC401 and Q303 Done Yes No Does approve the Vertical pulse on the CRT Socket G1 Check CN102 and CN201 Yes No Check white balance adjustment 5 2 4 Visible Retrace 25 26 WAVEFORMS 25 5 00V Q501 Emitter CH1 P P 5 00V CH1 RMS 28 33V 26 20 00V CRT Socket G1 CH1 P P 20 0V CH1 RMS 66 68V ...

Page 52: ...e right Signals at Pin 28 and 29 of IC201 are right Check IC201 Yes Yes No Check Video Cable No Signals at Pin 14 and 15 of IC401 are right Check IC401 Check circuits on Main board Yes Done No Check input signals Pin 2 and 3 of CN202 5 2 5 Unsynchronized Image ...

Page 53: ...oting CA17K CA17J 5 17 The convergence is now within spec Readjust convergence No Done Yes The convergence is now within spec Done Change CRT and readjust convergence No Done Yes Try readjusting convergence 5 2 6 Misconvergence ...

Page 54: ...r and check for focus change Yes Dynamic focus circuit is right Refer to 5 1 15 Dynamic Focus Failure Replace the CRT and verify focus Yes No Adjust focus VR of FBT 5 2 7 Poor Focus 5 2 8 Purity Failure Purity is right Degaussing circuit is right Refer to 5 1 20 Degaussing Failure Replace CRT and verify purity Yes No No Done Yes Degaussing ...

Page 55: ...on the right Menu in the general field Use control bar after selecting SIZE B in the left Menu to adjust the horizontal minimum size of the display Pattern to 285 mm Tolerance 3 mm Use control bar after selecting H SIZE in the left menu to adjust the horizontal size of the display pattern to 312 mm Tolerance 3 mm Run the All Mode save in the Right Menu Caution Do not Run the All mode Save at the o...

Page 56: ...3 for the tolerance range Use control bar after selecting V LINEARITY BAL in left menu to optimize the image 4 2 5 Trapezoid Adjustment CONDITIONS Scanning frequency 68 kHz 85 Hz Display image Crosshatch pattern Brightness Maximum Contrast Maximum Use control bar after selecting TRAPEZOID in left menu to make the image area rectangular Figure 4 4 Trapezoid 4 2 6 Pinbalance Adjustment CONDITIONS Sc...

Page 57: ...uency 68 kHz 85 Hz Display image Crosshatch pattern Use control bar after selecting PINCUSHION in left menu to straighten the sides of the image area 4 2 9 Degauss No adjustments are available for the degaussing circuit The degaussing circuit can effectively function only once per 30 minutes 4 2 10 To Delete the User Mode Data To delete the adjustment data from the user modes click 4 USER DELETE i...

Page 58: ... Adjust the luminance of the back raster to between 0 5 to 0 7 ft L using contron bar after selecting GREEN CUTOFF in the menu 3 Use control bar after selecting BLUE CUTOFF in left menu to set the y coordinate to 0 298 0 02 4 Use control bar after selecting RED CUTOFF in left menu to 0 283 0 02 If color values would not be matched desirable values repeat sequence 3 and 4 after readjusting GREEN CU...

Page 59: ...eturn to 4 3 2 a and readjust all settings 2 Display a full white pattern 3 Select Geometry in softjig menu 4 Select 7 5 ft in right menu 5 Check whether the white coordinates of the video meet the above coordinates spec 6 Select 8 24 ft in right menu 7 Check whether the white coordinates of the video satisfies the above spec If they do not return to 4 3 2 a and readjust all settings Select Color ...

Page 60: ...er of the display area Note Color purity adjustments should only be attempted by qualified personnel 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 Make sure the spacing between the PCM assembly and the CRT stem is 29 mm 1 mm 3 Display a green pat...

Page 61: ...CONFIDENTIAL 4 Alignment and Adjustments 4 8 CA17K CA17J Memo ...

Page 62: ...tor on the Main 5 Using the jig release the snaps 2 connecting the Front Cover and the PCB then lift up the Bottom to separate the two Shield 6 Disconnect the Tilt connector at the CN304 connector on the Main PCB 7 Disconnect the Sub PCB connector at the CN205 connector on the Main PCB 8 Remove the screws on the back and along each side of the Bottom Chassis 9 Carefully lift the Main PCB Ass y and...

Page 63: ... 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 N C DDC Return GND R GND G GND B N C GND Sync Self raster N C DDC Data H Sync V Sync DDC Clock GND R Red H V Sync Sense 0 Green GND G Sense 1 Reserved Blue Sense 2 GND V Sync GND B GND H Sync ...

Page 64: ... Positive Separate 31 469 31 778 3 813 1 907 25 422 0 636 59 940 16 683 0 064 1 048 15 253 0 318 25 175 Negative Negative Separate 37 500 26 667 2 032 3 810 20 317 0 508 75 000 13 333 0 080 0 427 12 800 0 027 31 500 Negative Negative Separate 43 269 23 111 1 556 2 222 17 778 1 556 85 008 11 764 0 671 0 578 11 093 0 023 36 000 Negative Negative Separate 46 875 21 333 1 616 3 232 16 162 0 323 75 000...

Page 65: ...CONFIDENTIAL 2 Product Specifications 2 4 CA17K CA17J Memo ...

Page 66: ...e between each blade of the AC plug and accessible conductive parts see above should be greater than 1 megohm 7 Never defeat any of the B voltage interlocks Do not apply AC power to the unit or any of its assemblies unless all solid state heat sinks are correctly installed 8 Always connect a test instrument s ground lead to the instrument chassis ground before connecting the positive lead always r...

Page 67: ...o Ltd 416 Maetan 3Dong Paldal Gu Suwon City Kyungki Do Korea Printed in Korea P N BH81 00018A 00 http www samsungmonitor com SyncMaster Worldwide http www samsung monitor com SyncMaster USA http www sec co kr monitor Korea ...

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