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1 23-24B70103B DTN 100V 103H

CAP. METAL

1 EA C735

1 23-27B70102B P.P,YPN 100V 102G

CAP. METAL

1 EA C305

1 23-27B70472B P.P,YPN 100V 472G

CAP. METAL

1 EA C613

1 23-32F90154B

DTM,YMPP 250V 154J

CAP. METAL

1 EA C702

1 23-32F90224B

DTM,YMPP 250V 224J

CAP. METAL

1 EA C705

1 23-32F90274B

DTM,YMPP 250V 274J

CAP. METAL

1 EA C710

1 23-32F90564B

DTM,YMPP 250V 564J

CAP. METAL

1 EA C709

1 23-33R90102B DTMS,YPN 1.6KV 102J

CAP. METAL

1 EA C612

1 23-34F90103B

DTN,YPN 250V 103J

CAP. METAL

1 EA C706

1 23-70B90153T

100V 153J T/P(DI,OY)

CAP. MYLAR

1 EA C102

1 23-70B90154T

100V 154J T/P

CAP. MYLAR

1 EA C309

1 23-70B90273T

100V 273J T/P

CAP. MYLAR

1 EA C729

1 23-70B90332T

100V 332J T/P

CAP. MYLAR

1 EA C717

1 23-70B90472T

100V 472J T/P

CAP. MYLAR

1 EA C208

1 26-81590121T

DC50V-SL-121UF(J)T/P

CAP. CERAMIC

1 EA C313

1 26-81590221T

DC50V-SL-221PF(J)T/P

CAP. CERAMIC

1 EA C514

1 26-81590331T

DC50V-SL-331PF(J)T/P

CAP. CERAMIC

1 EA C734

1 26-820A0102T

DC50V-B-102PF(K) T/P CAP. CERAMIC

1 EA C506

1 26-822R0103T

DC50V-F-103PF(Z) T/P

CAP. CERAMIC

1 EA C736

1 26-P20A0101T DC1KV-B-101PF(K) T/P CAP. CERAMIC

1 EA C716

1 26-R20A0102T DC2KV-B-102PF(K) T/P CAP. CERAMIC

1 EA C714

1 27-1404022JT

SMG 400V 220 UF

CAP. ELECT. 25*40

1 EA C114

1 27-1603010FB

SMS 250V 10

UF

CAP. ELECT.

1 EA C615

1 27-16030228T

SMS 50V 22

UFT/P

CAP. ELECT.

1 EA C603

1 27-1603047DB SMS 160V 47

UF

CAP. ELECT.

1 EA C101

1 27-16040228T

SMS 50V 220 UFT/P

CAP. ELECT.

1 EA C206

1 30-1B3906TAX 2N3906-TA

TR.

1 EA Q606

1 30-1P1271TAX KTA1271-Y

TR.

1 EA Q402

1 30-2Z0033TAX

KSP92

TR.

1 EA Q601

1 30-3M1008TAX KSC1008-Y

TR.

1 EA Q101

1 30-3Q3198TAX KTC3198-Y

TR.

1 EA Q702

1 30-4F5584BNX 2SC5584

TR.

1 EA Q712

1 30-8Z0008BDX FQP4N20

FET

1 EA Q713

1 30-8Z0027BEX SSS10N60A

FET

1 EA Q603

1 31-100002MZX ATS-49/U 12MHZ

CRISTAL

1 EA X501

1 33-130001901

FQM19A002

F.B.T

1 EA T601

1 33-210082004

SCT-82D (경인,삼흥)

TRANS.SCAN KT-2938F 1 EA T303

1 33-260082001

HDT-82 (경인,삼흥)

TRANS.DRIVE KT-1982 1 EA T703

1 33-312932001

60T (경인,삼흥)

TRANS.SYNC KT-2932

1 EA T103

1 33-340082002

GTT-82 (경인,삼흥)

TRANS.GATE KT-1982 1 EA T702

1 33-360014001

DFT-14 (경인,삼흥)

TRANS,FOCUS KT-2914 1 EA T701

1 34-160040001

LF-40 (경인,삼흥)

LINE FILTER KT-2938F 1 EA T102

1 34-180001002

10UH (경인,삼흥)

LINEARITY KT2914F

1 EA L304

1 34-22031510X

AL03 TB151K (150UH)

INDUCTORS

1 EA L301

1 34-22034700X

AL03 TB470K (47UH)

INDUCTORS

1 EA L602

1 34-250014000

SPT-14 (경인,삼흥)

TRANS,SMPS

1 EA T101

1 35-A1N40072T 1N4007GP

DIODE

1 EA D702

1 35-CGBU6JL1B GBU6JL

DIODE

1 EA D120

1 35-F1N52422T 1N 5242 1/2W 12V

DIODE ZENER

1 EA D102

1 35-HDTV56F1B DTV 56F

DIODE

1 EA D309

1 38-1013A1025

8D-13

THERMISTOR-NTC

1 EA TH102

1 38-2009A2024

2PIN-9OHM

THERMISTOR-PTC

1 EA TH101

1 38-4152A1021

1.5KV

SPARK GAP

1 EA SG601

1 39-313310000

KT-2914

MAIN PCB 247*247

1 EA MAIN PCB

1 41-HRCR71200 HR-CR7DC12V(HAN KUK)RELAY (KT-XX82)

1 EA RL101

1 44-180101800

15P*1800mm KORTEK

SIGNAL KT-2914

1 EA SIGNAL CABLE

1 48-050405000

4P 500mm S/W 일반

CONNECTOR KT-XX82

1 EA CN401

1 48-051303500

13P*13P*350mm

CONNECTOR KT-**82

1 EA CN411

1 49-0526702XX

5267-02

WAFER

1 EA CN402

1 49-0526706XX

5267-06

WAFER

1 EA CN404

1 49-0LW064005 LW 0640-05

WAFER LPH01-05

1 EA CN409

1 49-0LW114306 LW 1143-06

WAFER LPHP03-06

1 EA CN406

1 49-2IS42PXXX

42 PIN

IC SOCKET

1 EA IC502

1 50-21X215BDA 215 250V 3.15A

FUSE

1 EA F101

1 52-700001XXX

1 PIN (2.36)

PIN BASE

1 EA CN410

1 52-700006XXX

YFW 800-02 8 m/m

PIN BASE

1 EA CN102

1 52-700007XXX

YFW 800-02 10m/m

PIN BASE (YEON HO)

1 EA CN103

1 52-700008XXX

YFW 800-04

PIN BASE (YEON HO)

1 EA CN701

1 21-100100J8A

1/2W 1

OHM

RES. CARBON

2 EA R207,R301

1 21-1001R2F8A 1/2W 1.2 OHM 1%

RES. METAL

2 EA R215,R216

Summary of Contents for KT-2114DF

Page 1: ...SERVICE MANUAL COLOR CRT MONITOR KT 2914F KT 2914DF KT 2114F KT 2114DF KORTEK CORPORATION DOC NO KT XX14X SM DATE 2004 02 02 REV NO 0 REV DATE...

Page 2: ...IONS 3 2 PRODUCT SPECIFICATION 6 3 OPERATING INSTRUCTION 9 4 ADJUSTMENTS 11 5 TROUBLE SHOOTING GUIDE 19 6 PART LIST 29 7 BLOCK DIAGRAM 34 8 CONNECTING DIAGRAM 35 9 SCHEMATIC 36 10 PRINT CIRCUIT BOARD...

Page 3: ...age can produce potentially hazardous X Ray RADIA TION To avoid such hazards the high voltage must be above the specified limit The nominal value of the High voltage of this Monitor is 26KV 0 3KV at z...

Page 4: ...att resistor paralleled by a 0 15Uf capacitor in serial with an exposed metal chassis part and a known earth ground such as an electrical conductor and electrical ground connected to a earth ground c...

Page 5: ...he wrong direction may cause excessive X ray emissions WARNING 3 An electrolytic capacitor installed with the wrong polarity might explode 1 Servicing precautions are printed on the chassis and should...

Page 6: ...90 264V 60 50 3Hz Power Consumption Nomal Operation Input Current at 120V Input Current at 240V 120 Watts Operating 1 5Amps rms Turn on 30Amps Peak Operating 0 8Amps rms Turn on 60Amps Peak Linearity...

Page 7: ...C 12 SDA 13 H SYNC C S ORANGE 6P CONN 1 14 V SYNC WHITE 6P CONN 2 15 SCL SHELL GND RING WIRE CGA EGA 6PIN CONNECTION PCB CKT NO CN406 CONNECTION REMARK CGA SLOT ZAMMA Spec_ WIRE COLOR 6P CONN PCB 1 A...

Page 8: ...400 640 480 800 600 H f KHz 15 750 15 750 24 827 31 469 37 88 A uS 63 5 63 5 40 28 31 778 26 40 B uS 8 671 8 672 3 04 3 813 3 20 C uS 7 272 7 272 3 8 1 907 2 20 D uS 40 836 40 836 30 399 25 422 20 00...

Page 9: ...9 3 1 SET ASS Y 3 2 MAIN PCB ASS Y 3 Operating Instruction...

Page 10: ...the MENU disappears This button is used to select the control item on the MENU In MENU the control item could be selected and unselected by this button EXIT This button is used to exit the value of an...

Page 11: ...hout signal Adjustment 26KV 0 3KV PROCEDURE Disconnect the AC line cord from the power source Connect positive end of High Voltage probe to anode cap of CRT negative end of to GND main chassis First o...

Page 12: ...function control 3 Press the MENU SELECT button 4 UP or DOWN button is used to control the value of any function 5 When you press exit button the MENU disappears 4 2 1 Screen center adjustment width...

Page 13: ...se to H POS d Vertical position adjustment 4 2 2 Trapezoid adjustment frequency all mode signal pattern cross hatch 4 2 3 Pin balance adjustment frequency all mode signal pattern cross hatch 4 2 4 Par...

Page 14: ...4 2 6 Tilt adjustment frequency all mode signal pattern cross hatch brightness MIN cut off contrast MAX 4 2 7 Degaussing adjustment Don t adjust the degaussing Degaussing is possible in OSD adjustmen...

Page 15: ...ondition frequency 640 480 60Hz display pattern back raster pattern brightness MIN cut off contrast MAX 1 Select factory mode 2 Select COLOR TEMP with UP DOWN key 3 Select 9300K 4 Adjust back raster b...

Page 16: ...Select contrast icon with UP DOWN key adjust contrast to 50 60f l with UP DOWN key 8 Select ACL key A C in full white pattern and adjust ACL to 28 30f l attention If 50f l doesn t adjust in 20 window...

Page 17: ...MIN cut off contrast MAX Measure nine brightness display in the screen 4 3 5 Focus adjustment set condition frequency 640 480 60Hz display pattern H character brightness min cut off contrast max 1 Adj...

Page 18: ...ection east frequency included timing chart display pattern full white brightness MIN cut off display center Most suitable RED x 0 640 0 015 y 0 323 0 015 GREEN x 0 295 0 015 y 0 594 0 015 BLUE x 0 14...

Page 19: ...heck the other secondary outputs 250V 130V 80V 12V 12V 12V 6 3V 5V Lines Does each output appear Measure 80V output between cathode of D110 and Ground Does appear 80V DC Check and replace F101 IC103 C...

Page 20: ...2 2 Replace CRT and verify purity YES YES NO NO Check degauss Connector CN102 Check output voltage at pin 12 of IC502 Normal 0V Degaussing 5V Does DC voltage right Check and replace Q101 D101 RL101 R1...

Page 21: ...the convergence now within spec YES NO NO YES NO NO 5 2 5 Misconvergence Failure Check tilt connection CN402 IC 502 pin 35 output varies with different values DC 0V 5V Check and replace R COIL of the...

Page 22: ...Check and replace D608 610 Pin 9 of IC602 pulse exist Replace IC602 YES NO YES NO NO YES YES NO NO 5 2 7 High Voltage Failure Check pin 36 of IC502 output varies with different value DC 0V 5V Check Q7...

Page 23: ...le Focus Done Check and replace T701 Replace the CPT and verify focus YES NO YES NO NO 5 2 10 Dynamic Focus Failure or poor Focus Others Check the voltage at pin 21 of IC502 Normal 5V Push the EXIT Ke...

Page 24: ...ace Q605 12V Check and replace pin 12 of the IC802 NO YES YES 5 2 11 ACL Failure Is Screen voltage 550 50V right Check Screen control voltage and FBT Does Q201 collector pulse 35Vp p exist Check 80V L...

Page 25: ...oes fly back pulse at collector of Q712 appear Check the Pin 26 of IC301 Does 12Vp p pulse appear Check D712 D715 and 80V Line Check and replace IC301 Does the wave form at pin 8 of T703 appear Check...

Page 26: ...right Check and replace IC802 Q802R G B video output are right Check Q803 and 12V 80V Line R G B cathode wave forms are right Check R806R G B and Q801R G B G2 voltage are right 550 50V Check screen CP...

Page 27: ...U botton IC502 Pin10 Pin11 wave forms are right Check IC502 and SDA SCL Line Check and replace IC802 NO YES YES NO YES YES NO 5 2 16 OSD failure IC 301 Pin24 output parabola level variable Check and r...

Page 28: ...ppear at Pin5 of IC201 Refer to No power supply IC 301 Pin 13 Pin 23 output exist IC 502 Pin 33 output exist Check and replace IC301 Check and replace IC201 YES NO YES NO YES Check and replace IC502 N...

Page 29: ...1 EA R730 1 21 1203R9F5A 1 4W 3 9 KOHM1 RES METAL 1 EA R634 1 21 1203R9J4A 1 6W 3 9 KOHM RES CARBON 1 EA R516 1 21 1207R5J4A 1 6W 7 5 KOHM RES CARBON 1 EA R749 1 21 1208R2F4A 1 6W 8 2 KOHM1 RES METAL...

Page 30: ...FET 1 EA Q713 1 30 8Z0027BEX SSS10N60A FET 1 EA Q603 1 31 100002MZX ATS 49 U 12MHZ CRISTAL 1 EA X501 1 33 130001901 FQM19A002 F B T 1 EA T601 1 33 210082004 SCT 82D TRANS SCAN KT 2938F 1 EA T303 1 33...

Page 31: ...IP TAPING 2 EA F101 1 21 111200J4A 1 6W 120 OHM RES CARBON 3 EA R801 R816 R817 1 21 1201R5J4A 1 6W 1 5 KOHM RES CARBON 3 EA R109 R611 R703 1 21 1208R2J4A 1 6W 8 2 KOHM RES CARBON 3 EA R205 R401 R705 1...

Page 32: ...S 16V 220 UFT P CAP ELECT 8 11 5 2 EA C810 C823 2 30 3B3904TAX 2N3904 TA TR 2 EA Q801 Q802 2 09 121540P20 C3503 D H S ASS Y 3 PCS Q803R Q803G Q803B 2 21 111000J8A 1 2W 100 OHM RES CARBON 3 EA R806R R8...

Page 33: ...15 1 2 1 2W 1 2 1 2W 1 2 1 2W 1 2 1 2W 1 2 1 2W 10 R216 1 2 1 2W 2 7 1 2W 2 7 1 2W 4 7 1 2W 4 7 1 2W 11 T701 ET 14 ET 14 ET 14 NONE NONE 12 C706 103 250V MPP 103 250V MPP 103 250V MPP NONE NONE 13 R71...

Page 34: ...TICAL OUTPUT TDA8172 TLIT CONTROL TILT COIL DEFLECTION YOKE VIDEO AMP KA2506 HIGH VOLTAGE REGULATION OSD PROCESSOR WT6802 VIDEO OUTPUT CUT OFF CONTROL R G B INPUT MICRO CONTROLLER UNIT WT62P1 ADJUST K...

Page 35: ...01 CN407 CN807 CN411 CN401 15PIN VGA SIGNAL IN CN404 CN409 CN406 CN407 CN409orCN406 GGA EGA CN405 CN404 VGA SVGA CN405 PIN NO CN406 CN409 R IN R IN G IN G IN B IN B IN GND GND V SYNC H V SYNC H SYNC 5...

Page 36: ...4 330K 1 2W 1 CN803 GT 1P 1 CN804 GT 1P 1 CN805 GT 1P 1 CN808 GT 1P L807 BD L808 BD L809 BD C805 0 0047U M C808 0 22U M C801 100U 16V C205 470U 16V C508 47U 50V R 5 1 3 2 2K C506 1000P 50V D402 LED 1...

Page 37: ...37 10 PRINT CIRCUIT BOARD 10 1 MAIN 247mm 247mm...

Page 38: ...38 10 2 VIDEO 25mm 150mm 128mm 98mm...

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