Read \KT-2914\KT- text version

COLOR CRT MONITOR

DOC. NO DATE REV. NO REV. DATE

KT-XX14X-SM 2004 .02. 02 0 -

SERVICE

MANUAL

KT-2914F / KT-2914DF KT-2114F / KT-2114DF

KORTEK CORPORATION

CONTENTS

1. PRECAUTIONS -------------------------------------------------- 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 ---------------------------------- 37

1.Precautions

1-1. Safety precautions Warnings : Service should

not be attempted by anyone unfamiliar with the

necessary on this Monitor.

The followings are the necessary precautions to be observed before servicing. 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 heat sinks are potential shock hazards.

1-1-1 Servicing the high voltage volume are CRT Warnings

A High Voltage volume replaced in the wrong direction may cause excessive X-Ray emissions. 1) Adjust in order to 26KV with signal at Anode. 2) When the troubleshooting a monitor with excessively High Voltage, avoid being unnecessarily close to the monitor. Do not operate the monitor for longer than is necessary to locate the cause of excessive voltage. 3) Excessive High Voltage can produce potentially hazardous X-Ray RADIATION. 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 ¡¾ 0.3KV at zero beam current(minimum brightness) under a 120V AC power source. The High Voltage must not (under any circumstances) exceed 29KV. Each time a monitor requires servicing, the High Voltage should be checked following the High Voltage check procedure on this manual. It is recommended the reading of the voltage be recorded as a part of the service record. It is important to use an accurate and reliable High Voltage meter. 4) When the High Voltage regulator is operating properly, there is no possibility of an X-Ray problem. 5) The CRT is especially designed to prohibit X-ray emission. To ensure continued X-ray protection, replace the CRT only with one that is the same or equivalent type as the original. 6) Handle the CRT only when wearing shatterproof goggles and after completely. 7) Do not lift the CRT by the neck.

1-1-2. Fire and Shock Hazard

Before returning the monitor to the user,perform the following safety checks: 1) Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the monitor. 2) Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment cover or shields isolation resistor-capacitor networks, mechanical insulations, etc. 3) To be sure that no shock hazard exists, check for leakage current in the following manner. a. Plug the AC line cord directly into a 120 or 230 Volt AC outlet. (Do not use an isolation transformer for this test) b. Using two clip leads, connect a 1.5K¥Ø 10Watt 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. Use a SSVM or VOM with 1000 ohms per-volt or sensitivity to measure the AC voltage drop across the resistor. d. Connect the resistor to an exposed metal part having a return path to the chassis(metal cabinet, screw heads, knobs, shafts, escutcheon,etc) and measure the AC voltage drop across the resistor. e. Any reading of 5.25 volt RMS(this corresponds to 3.5 milliampere AC) or more is excessive and indicates a potential shock hazard. Correct the shock hazard before returning the monitor to the user.

(READING SHOULD) NOT BE ABOVE 0.5mA

DEVICE UNDER TEST

TEST ALL EXPOSED METAL SURFACES

LEAKAGE CURRENT TESTER

2-WIRE CORD

ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)

Earth ground

Figure 1-1. Leakage Current Test Circuit

1-1-3. Product safety notices:

Some electrical and mechanical parts have special safety related characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,wattage,etc. Parts that have special safety characteristics are identified by ¡â on schematics and parts lists. A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and or other hazards. Product safety is under review continuously and new instructions whenever appropriate.

1-2. Servicing Precautions

WARNING 1 : First read the "Safety Precaution" section of this manual. if unforeseen circumstances create conflict between the servicing precautions and safety precautions,always follow the safety precautions. WARNING 2 : A High Voltage volume replaced in the 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 be followed closely 2) Always unplug the units 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. 3) after servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the area around the serviced part has not been damaged. 4) Check the insulation between the blades of the AC plug and accessible conductive parts(examples:metal panels,input terminals and earphone jacks). 5) 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. 6) Always connect a test instruments ground lead to the instrument chassis ground before connecting the lead; always remove the instruments lead last.

2. Product Specifications

2-1 SPECIFICATION

CDT

Tube Tube Size(Diagonal)

Viewabl e S ize (Dia gonal )

KT-2914F

29"No rmal flat 730 mm(2 9") 605 mm(2 7") 0.79§® (H) 90¡Æ Sing le 550 *40 0 580 *41 0

KT-2914DF

29"Dyna flat 730 mm(2 9") 605 mm(2 7") 0.79§® (H) 90¡Æ Double 550 *40 0 580 *41 0

KT-2114DF

21"Dyna flat 550 mm(2 1") 508 mm(2 0") 0.74§® (H) 90¡Æ Sing le 400 *30 0 415 *31 0

KT-2114F

21"No rmal flat 550 mm(2 1") 508 mm(2 0") 0.74§® (H) 90¡Æ Sing le 400 *30 0 415 *31 0

Dot Pitch Deflection Angle Focusing Method

Normal (H*V) Display Area (mm) Bandwidth Maximum (H*V) Maximum

50MHz 15-40KHz 50-120Hz

Scanning Frequency Horizontal (Auto Scanning) Microprocessor Vertical

User Saving Mode 6 Modes Digital Position,Size,Pincushion,Trapezoid,H/Vcorner, Pin-B,Trapezoid,Parallel,Tilt,Moire,Zoom Color Temperature,Recall,Manual Degauss Language Eng/Ger/Fra/Esp/Port

User Control Display

Display color Resolution Signal Input Safety & EMC Power

Color Temperature 9300 ¡Æ 6500¡Æ , User Color K, K Maximum Mode Connect Safety EMC Voltage 800 X 600 @ 60Hz 15 pin D-sub(Female) or Option(6Pin, 5Pin) cUL,CE,DHHS FCC,CE AC 90-264V, 60 / 50 ¡¾ 3Hz ¡Â120 Watts Operating :¡Â 1.5Amps rms. Turn on :¡Â 30Amps Peak. Operating :¡Â 0.8Amps rms. Turn on :¡Â 60Amps Peak. Horizontal : 5% Vertical Storage Humidity Storage : 5% : -40 to +60¡É : 5 to 95% Operating : 0 to +40¡É Operating : 10 to 85%

Power Consumption Nomal Operation Input Current at 120V Input Current at 240V

Linearity

Cross Pattern Temperature

Environment

2-2 D-SUB SIGNAL CABLE SPECIFICATION

* VGA/SVGA SIGNAL CABLE PIN CONNECTION (15 PIN D-SUB MINIATURE SIGNAL CONNECTOR WITH CABLE ; PCB CKT NO.: CN404 )

CONNECTION D-SUB 15PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SHELL IBM PC RED GREEN BLUE N.C GND RED-GND GREEN-GND BLUE-GND N.C ID N.C SDA H-SYNC (C/S) V-SYNC SCL GND WIRE COLOR RED COAX-IN GREEN COAX-IN BLUE COAX-IN BLACK ORANGE WHITE 6P CONN-1 6P CONN-2 RING WIRE RING WIRE 6P CONN 6P CONN 6P CONN-6 6P CONN-5 6P CONN-4 6P CONN-3 REMARK

*CGA

/ EGA 6PIN CONNECTION ( PCB CKT NO. : CN406 )

CONNECTION REMARK

CGA SLOT 1 , A 16 28 , f T 17 U

ZAMMA Spec_ H-SYNC V-SYNC GND & SHELL BLUE GREEN RED

WIRE COLOR WHITE YELLOW BLACK BLUE GREEN RED

6P CONN (@ PCB) 6P CONN-6 6P CONN-5 6P CONN-4 6P CONN-3 6P CONN-2 6P CONN-1

*CGA

/ EGA 5PIN CONNECTION ( PCB CKT NO. : CN409 )

CONNECTION REMARK

CGA SLOT 1 , A 28 , f T 17 U

ZAMMA Spec_ H/V COPOSITE-SYNC GND & SHELL BLUE GREEN RED

WIRE COLOR WHITE BLACK BLUE GREEN RED

5P CONN (@ PCB) 5P CONN-5 5P CONN-4 5P CONN-3 5P CONN-2 5P CONN-1

2-3 TIMING CHART

HORIZONTAL

VERTICAL

VIDEO

C D E Q R S

SYNC

B A P O

A : LINE TIME TOTAL C : BACK PORCH E : FRONT PORCH O : FRAME TIME TOTAL Q : BACK PORCH S : FRONT PORCH

B :HORIZONTAL SYNC WIDTH D : ACTIVE TIME

P : VERTICAL SYNC WIDTH R : ACTIVE TIME

CGA DESCRPTION f KHz A H B C D E uS uS uS uS uS 640 x 200 15.750 63.5 8.671 7.272 40.836 6.72 POS 50 20.0 0.444 0.825 18.603 0.128 POS 640 x 200 15.750 63.5 8.672 7.272 40.836 6.72 POS 60.115 16.63 0.444 0.825 15.302 0.06 POS

EGA 640 x 400 24.827 40.28 3.04 3.8 30.399 3.04 POS 55.609 17.98 0.322 1.26 16.111 0.282 POS

VGA 640*480 31.469 31.778 3.813 1.907 25.422 0.636 NEG 59.940 16.683 0.064 1.048 15.253 0.318 NEG

SVGA 800*600 37.88 26.40 3.20 2.20 20.00 1.00 POS 60.317 16.58 0.11 0.61 15.84 0.03 POS

POL. f O P V Q Hz mS mS mS

R mS S mS

POL.

3. Operating Instruction

3-1 SET ASS'Y

3.2 MAIN PCB ASS'Y

3-3. Function of Control

UP DOWN MENU (SELECT) EXIT (DEGAUSSING) LED

Control

LED (Power Indicator)

Function

The light of power LED changes according to each state. ¡Ý on mode : Green LED. ¡Ý power saving mode : green LED blinking. When you press this button, the MENU appears.The MENU will disappear in 10 seconds if you don't operate any button. When you press EXIT button again, 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.

MENU(Sellect)

EXIT UP

This button is used to exit the value of any selected control. This button is used to increase the value of any selected control. This button is used to locate to the next control item for select. This button is used to decrease the value of any selected control. This button is used to locate to the previous control item for select.

DOWN

4.Adjustments

4-1. Adjustment Control 4-1-1. Before making Adjustments

1) Orientation When servicing, always face the monitor to east. 2) Warm-up time The monitor must be on for 30 minutes before starting alignment. Warm-up time is especially critical in color temperature and white balance adjustments. 3) Signal Analog, 0.714Vp-p positive at 75¥Ø internal termination. , 4) High Voltage Adjustment Signal : without signal Adjustment : 26KV ¡¾ 0.3KV. PROCEDURE ¨ç Disconnect the AC line cord from the power source. ¨è Connect positive end of High Voltage probe to anode cap of CRT, negative end of to GND(main chassis) ¨é First of all Disconnect AC cord and than disconnect High voltage probe. 5) Screen Voltage - signal : 640 * 480 (60Hz) - Bright : max - Contrast : max - Adjustment (SAMSUNG SDI) : 550 ¡¾ 10V , Full white

4-1-2 TURN ON THE FACTORY OSD MANUAL METHOD

1) press on the "UP" key. 2) connect the AC line cord from the power source. 3) At this time OSD menu changed factory mode.

¢Å

HV AC

OSD

OSD

VF

i

BRIGHTNESS 31.4KHz 60Hz

4-2. Display Control Adjustment

Click on the "MENU" button (OSD MENU). This menu is user's OSD manual.(user's manual)

¢Å

BRIGHTNESS 31.4KHz 60Hz

1) Click on the "MENU" button. 2) Click on the "UP"or "DOWN" and move any 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 : 520mm height : 400mm signal : 640 * 480 (60Hz) £üA-B£ü¡Â 4.0mm , £üC-D£ü¡Â 4.0mm C

DISPLAY AREA

A

B

SQUARE CORNER

D

a) Horizontal size adjustment adjustment : use to "H-SIZE", 520¡¾3mm

b) Vertical size adjustment adjustment : use to "V-SIZE", 400¡¾3mm c) Horizontal position adjustment adjustment : use to "H-POS" d) Vertical position adjustment 4-2-2 Trapezoid adjustment frequency : all mode signal pattern : cross hatch A A

B £üA-B£ü< 2.5mm

B

4-2-3 Pin balance adjustment frequency : all mode signal pattern : cross hatch £üD1£ü,£üD2£ü¡Â1mm

D1

D2

D1

4-2-4 Parallelogram adjustment frequency : all mode signal pattern : cross hatch

5mm

4-2-5 Side pin-cushion adjustment frequency : all mode signal pattern : cross hatch brightness : MIN (cut-off) contrast : MAX

C2

D1 C1

D2

£üC1£ü,£üC2£ü¡Â2.0mm, £üD1£ü,£üD2£ü¡Â2.0mm 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 adjustment menu. After using this function once, You must use again after at least 30minutes. 4-2-8 SAVE ADJUSTMENT CONDITION & REMOVE USER MODE.

4-3 Color adjustment 4-3-1 color temperature ¡Ø Set condition - measuring instrument : color analyzer (CA-100) - frequency : 640 * 480 (60Hz) - display pattern : full white , one square(20% window) - brightness : cut off - contrast : MAX ¡Ø specification - 9300K x=0.281¡¾0.02 , y=0.311¡¾0.02 - 6500K x=0.313¡¾0.02 , y=0.329¡¾0.02 4-3-2 color adjustment (9300K) a) Back raster color adjustment ¡Ø Set condition - 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 brightness to 0.01~0.02(F/L) with VR601. 5. Select B-B with UP,DOWN adjust y=0.311 and do the next selection with EXIT key. 6. Select R-B with UP,DOWN adjust x=0.281 and do the next selection with EXIT key. a) white balance / ACL adjustment ¡Ø Set condition - frequency : 640 * 480 (60Hz) - display pattern : one square(20% window) , full white - brightness : MIN (cut off) - contrast : MAX

1. Select factory mode. 2. Select COLOR TEMP with UP,DOWN key. 3. Select 9300K. 4. Select B-G with UP,DOWN adjust y=0.311 and do the next selection with EXIT key. 6. Select R-G with UP,DOWN adjust x=0.281 and do the next selection with EXIT key. 7. Select contrast icon with UP,DOWN key, adjust contrast to 50~60f/l with UP,DOWN key.

20% window pattern

front cabinet back raster

8. Select ACL key(A/C) in full white pattern and adjust ACL to 28~30f/l.

front cabinet full white back raster

¡Ø attention : If 50f/l doesn't adjust in 20% window, adjust G-G again with DOWN key. 4-3-3 color adjustment (6500K) a) white balance adjustment 1. Select factory mode. 2. Select COLOR TEMP with UP,DOWN key. 3. Select 6500K.

4. Select B-G with UP,DOWN adjust y=0.329 and do the next selection with EXIT key. 6. Select R-G with UP,DOWN adjust x=0.313 and do the next selection with EXIT key. 4-3-4 brightness uniformity adjustment ¡Ø set condition - frequency : 640 * 480 (60Hz) - display pattern : 9 ball pattern - brightness : MIN (cut off) - contrast : MAX Measure nine brightness display in the screen.

front cabinet

4-3-5 Focus adjustment ¡Ø set condition - frequency : 640 * 480 (60Hz) - display pattern : "H" character - brightness : min (cut off) - contrast : max 1. Adjust in focus of whole screen to be the best fitted with FOCUS V/R in FBT. 4-3-6 PURITY adjustment Purity is that unnecessary colors appear in the screen except displayed color. Don't appear unnecessary colors divided with the naked eye at a distance of 50§¯ from CRT surface.

set condition - direction : east - frequency : included timing chart - display pattern : full white - brightness : MIN (cut off) - display center

Most suitable RED GREEN BLUE x=0.640 ¡¾ 0.015 x=0.295 ¡¾ 0.015 x=0.142 ¡¾ 0.015 y=0.323 ¡¾ 0.015 y=0.594 ¡¾ 0.015 y=0.066 ¡¾ 0.015

5. TROUBLESHOOTING GUIDE

5-1. Troubleshooting Guide.

NOTES ; 1. If picture does not appear, fully rotate the brightness and contrast controls clockwise. 2. Check the following circuits. No raster appear : power circuit. Horizontal output circuit. High voltage control circuit and output circuit. High voltage develops but no raster appears : Video output circuit. High voltage does not develop : Horizontal output circuit.

5-2-1. No Raster, No Video

No Power

Measure +80V output between cathode of D110 and Ground. Does appear 80V DC?

YES

Check the other secondary outputs(+250V,+130V,+80V,+12V, -12V,+12V,+6.3V ,5V Lines) Does each output appear? Check and replace D104,D105,D106 D108,IC103,IC101 Check Video and Horizontal circuits

NO

Check and replace F101,IC103

5-2-2 S-Correction failure.

1

C/S TABLE S1 S2 S3 ~17K 17~28K 29~34K 34~40K L L L H L L H H L H H H

Check S1,S2,S3 signals refer to S-correction table on the schematic

2 3 4

IC103 1pin

S1,S2,S3 signal are right at each frequency block YES Check and replace Q704,707,709,703,706,708

NO Check and replace

5-2-3 Degaussing failure

Check degauss Connector(CN102) YES Check output voltage at pin 12 of IC502 (Normal : 0V, Degaussing: 5V) Does DC voltage right? YES Check and replace Q101,D101,RL101,R101 NO

Replace IC502

5-2-3 Purity failure

Degaussing

Purity is O.K NO Degaussing circuit is right? YES Replace CRT and verify purity

YES

Done

NO

Refer to 5-2-2

5-2-4 Rotation Failure

Check tilt connection (CN402)

IC 502 pin 35

output varies NO Check and replace IC502

with different values? (DC 0V¡-5V) YES Q403,Q401,Q402 varies with different values?

NO

Check and replace Q403,Q401,Q402

YES Check and replace R-COIL of the CPT

5-2-5 Misconvergence Failure

Try readjusting convergence NO Is the convergence now within spec? NO Readjusting convergence NO Is the convergence now within spec? NO Change CPT and readjusting convergence YES Done YES Done

5-2-6 H-Linearity Failure

Check pin 36 of IC502 output varies with different value? (DC 0V¡-5V) YES Check Q702,Q701 output varies with different value? YES Check L304 output varies with different value? NO NO Check and replace IC502

Check and replace Q702,Q701

5-2-7 High Voltage Failure

Does 900Vp-p fly back pulse appear on pin 1 of FBT? YES Q602,606 base driving pulse exist? YES Q603 drain pulse exist? YES Q603 gate pulse exist? YES Pin 9 of IC602 pulse exist? NO Replace IC602 NO NO Check and replace Q603 NO Check +12V,Q602,606 NO Check and replace Q704,D708,R716

L304

Check and replace D608,610

Q602,Q606 BASE

FBT 1pin

5-2-8 User control Failure

Others

Check the voltage at pin 21 of IC502 Normal : 5V Push the EXIT Key : 0.5V Push the SEL Key : 1.5V Push the UP Key : 3.5V Push the DOWN Key : 2.5V NO Check and replace R406,R408,R409,R410

5-2-10 Dynamic Focus Failure or poor Focus

Try Readjusting double Focus NO Check the wave form at SG601 Collector.Does appear parabola wave form? YES Done

NO

Check and replace R712,T701

T701 wave form is right? YES Replace the CPT and verify focus

NO

Check and replace T701

T701

5-2-10 Visible Retrace

Is Screen voltage (550¡¾50V) right? YES Does Q201 collector pulse (35Vp-p) exist? YES Does Q201 base drive wave form exist? YES Check and replace IC201 NO Check The G1 NO Check 80V Line NO Check Screen control and FBT voltage

Q201 COLLECTOR 5-2-11 ACL Failure

Input full white pattern to monitor YES Check the voltage at pin 2 of IC502? (PWM WAVE FORM) YES Q605,Q607 base input exists? YES Check and replace pin 12 of the IC802? NO Check replace Q605, 12V NO

G1

Check replace IC502

IC502 2pin PWM

5-2-12 Micom Failure

Does 5V appear Pin6 of IC502?

YES IC502 Pin8 and pin8 wave form are right? YES IC502 Pin 5 is over than 4.5Volt ? YES All input/output value are right? YES Done NO NO Check and replace R507 NO Check and replace X501,C512,C513

X501

Check and replace IC502

5-2-13 No Raster

Does fly back pulse at collector of Q712 appear? YES Check the Pin 26 of IC301.Does 12Vp-p pulse appear? YES Does the wave form at pin 8 of T703 appear? NO Check and replace Q714,Q715,Q713 NO NO Check D712,D715 and 80V Line

IC301 26pin

Check and replace IC301

YES Check the voltage PIN 7 of IC701 Does 12V DC appear? YES Does the wave form at pin 4 of IC701 appear? YES Check heater voltage 6.3V NO Check and replace IC701 NO Check the 12V line

T703 8pin

5-2-14 No Video

Check signal cable and connector YES IC802 Pin5,Pin8,Pin10 video input are right? YES IC802 Pin21,Pin24,Pin26 video output are right? YES Q802R,G,B video output are right? YES R,G,B cathode wave forms are right? YES G2 voltage are right? (550¡¾50V) YES G1 voltage are right? (-45 ¡¾10V) YES Check and replace CPT NO Check screen,CPT socket, and FBT NO Check R806R,G,B and Q801R,G,B NO Check Q803 and 12V,80V Line NO Check and replace IC802 NO Check R,G,B Cable conector

R,G,B Cathode wave form

5-2-15 Abnormal & Invariable H-size

IC 301 Pin24 output parabola level variable? YES Does T303 Pin8 pulse is appear?? YES Check some parts around T702 are they OK? YES Check and replace Q710? NO Check and replace T303? NO Check and replace IC301 and 12V,80V Line?

IC301 24pin

5-2-16 OSD failure

Check CN401 YES IC801 Pin5, Pin10 wave forms are right? YES When you click on the "MENU" botton. IC801 Pin13,Pin14,Pin15,Pin12 wave forms are right? YES When you click on the "MENU" botton. IC502 Pin10,Pin11, wave forms are right? YES Check and replace IC802 NO Check IC502 and SDA,SCL Line NO Check and replace IC801,5V Line NO Check and replace Q801,Q802

V-FLY

H-FLY

5-2-17 V-deflection failure

Does 12V DC appear at Pin2 of IC201? Does -12V DC appear at Pin5 of IC201? YES IC 301 Pin 13,Pin 23 output exist? YES IC 502 Pin 33 output exist? YES Check and replace IC201? NO NO NO Refer to No power supply

Check and replace IC301?

Check and replace IC502?

IC201 5 pin

IC201 1 pin

6. PART LIST

6-1. KT-1982F PART PIST 10 -2 1 11 1 K -29 4 O T K 2 9 4 0 0 T 1 F,K R E M INP BAS 'Y 1 A C S M INM N A A AUL 10 -1 1 30 2 1 N 0 9 3 5 P0 9 2 FT E 1 P SQ 0 C 78 10 -1 1 30 2 1 N 0 9 3 5 P1 1 4 FT E 1 P SQ 1 C 70 11 -6 1 6 R A F 6 1 5 D 1 S 2 5 H S S 26 -Y TU IC O E -P WR 1 E 10 AIC 3 11 -K 3 8 A A 58 1 A 5 AX AK 3 A IC P M -O A P 1 E 60 AIC 1 11 -K 3 8 A A 88 C 1 A 8 3C AK 3 3 IC W -P M 1 E 70 AIC 1 11 -K 4 1 G A 31 Z 1 A 3 AZ AK 4 A IC C -S R 1 E 12 AC 0 11 -K 7 0 A A 50 B 1 A 5 0B AK 7 0 IC W -P M 1 E 60 AIC 2 11 -K 7 0 E K 7 5 1 A 8 5X A A 80 IC E U A O -R G L T R 1 E 10 AIC 6 11 -K 7 R F K 7 1 1 A 8 12 A A 8R 2 IC E U A O -R G L T R 1 E 10 AIC 3 11 -K 24 0 A 5 4 8 D 1-D B0 1 S C 4 AS 2 C 0 4 C IC -I2C 1 E 50 AIC 1 11 -L 8 7B A L V 7 1 TV 1 A T 81 -B IC H T O P E 1 E 10 -P O OC U L R AIC 1 11 -S H 8 AH 74 C 6D C 4 C 6 PIC 1 74 C 6A D H 8 /T 7 H 8 A 1 E 50 AIC 3 11 -S 6 88 A S V 8 (T A9 1 ) 1 TV 8 A T 68 8 D 1 6 IC IM B S -T E A E 1 E 30 AIC 1 11 -T A 1 2C D 8 72 1 D 8 7 AT A 1 IC 1 E 20 AIC 1 11 -W62 1 A T 2 1 1 T 9 X AW6 P IC C -M U 1 E 50 AIC 2 12 -1 0 R J A 1 W1 H 1 0 1 5 8 /2 .5O M RS C RO E. AB N 1E 2 AR 10 12 -1 0 R J A 1 W6 H 1 0 6 8 5 /4 .8O M RS C RO E. AB N 1E 6 AR 18 12 -1 0 47 8 1 W0 7 H 1 0 R J A /2 .4 O M RS C RO E. AB N 1E 2 AR 06 12 -1 1 00 5 1 W1 O M 1 0 0 J A /4 0 H RS C RO E. AB N 1E 4 AR 02 12 -1 1 00 8 1 W1 O M 1 0 0 J A /2 0 H RS C RO E. AB N 1E 7 AR 42 12 -1 1 00 5 1 W1 O M 1 0 5 J A /4 5 H RS C RO E. AB N 1E 4 AR 03 12 -1 4 00 4 1 W4 O M 1 0 7 J A /6 7 H RS C RO E. AB N 1E 7 AR 45 12 -1 4 00 5 1 W4 O M 1 0 7 J A /4 7 H RS C RO E. AB N 1E 1 AR 01 12 -1 7 00 5 1 W7 O M 1 0 5 J A /4 5 H RS C RO E. AB N 1E 7 AR 36 12 -1 2 00 5 1 W2 0 O M 1 1 7 J A /4 7 H RS C RO E. AB N 1E 1 AR 20 12 -1 3 00 4 1 W3 0 O M 1 1 3 J A /6 3 H RS C RO E. AB N 1E 1 AR 23 12 -1 5 00 5 1 W5 0 O M 1 1 6 J A /4 6 H RS C RO E. AB N 1E 3 AR 02 12 -1 7 00 4 1 W7 0 O M 1 1 5 J A /6 5 H RS C RO E. AB N 1E 7 AR 31 12 -1 0 00 5 1 W1 K H 1 2 1 J A /4 OM RS C RO E. AB N 1E 7 AR 02 12 -1 0 R F A 1 W1 O M % 1 2 1 8 4 /6 .8K H 1 R S M TA E. E L 1E 1 AR 07 12 -1 0 R J A 1 W1 O M 1 2 1 8 5 /4 .8K H RS C RO E. AB N 1E 5 AR 25 12 -1 0 R J A 1 W2 O M 1 2 2 4 4 /6 .4K H RS C RO E. AB N 1E 7 AR 30 12 -1 0 R F A 1 W3 O M % 1 2 3 9 5 /4 .9K H 1 R S M TA E. E L 1E 6 AR 34 12 -1 0 R J A 1 W3 O M 1 2 3 9 4 /6 .9K H RS C RO E. AB N 1E 5 AR 16 12 -1 0 R J A 1 W7 O M 1 2 7 5 4 /6 .5K H RS C RO E. AB N 1E 7 AR 49 12 -1 0 R F A 1 W8 O M % 1 2 8 2 4 /6 .2K H 1 R S M TA E. E L 1E 2 AR 17 12 -1 0 R F A 1 W9 O M % 1 2 9 1 4 /6 .1K H 1 R S M TA E. E L 1E 3 AR 07 12 -1 1 00 5 1 W1 K H 1 1 3 0 F A /4 0 O M% R S M TA E. E L 1E 6 AR 32 12 -1 1 00 4 1 W1 K H 1 3 5 J A /6 5 O M RS C RO E. AB N 1E 2 AR 02 12 -1 2 00 5 1 W2 K H 1 1 3 2 F A /4 2 O M% R S M TA E. E L 1E 7 AR 28 12 -1 2 00 4 1 W2 K H 1 1 3 7 F A /6 7 O M% R S M TA E. E L 1E 2 AR 12 12 -1 3 00 8 1 W3 K H 1 3 3 J A /2 3 O M RS C RO E. AB N 1E 1 AR 17 12 -1 3 00 4 1 W3 K H 1 1 3 9 F A /6 9 O M% R S M TA E. E L 1E 5 AR 17 12 -1 3 00 4 1 W3 K H 1 3 9 J A /6 9 O M RS C RO E. AB N 1E 6 AR 10 12 -1 1 00 5 1 W1 0 K H 1 4 0 J A /4 0 O M RS C RO E. AB N 1E 6 AR 17 12 -1 1 00 8 1 W1 0 K H 1 4 2 J A /2 2 O M RS C RO E. AB N 1E 1 AR 11 12 -1 1 00 5 1 W1 0 K H 1 4 5 J A /4 5 O M RS C RO E. AB N 1E 1 AR 08 12 -1 2 00 5 1 W2 0 K H 1 1 4 0 F A /4 0 O M % R S M TA E. E L 1E 6 AR 33 12 -1 2 00 5 1 W2 0 K H 1 4 7 J A /4 7 O M RS C RO E. AB N 1E 6 AR 15 12 -1 3 00 4 1 W3 0 K H 1 4 3 J A /6 3 O M RS C RO E. AB N 1E 7 AR 41 12 -1 3 00 8 1 W3 0 K H 1 4 3 J A /2 3 O M RS C RO E. AB N 1E 1 AR 14 12 -1 3 00 4 1 W3 0 K H 1 4 9 J A /6 9 O M RS C RO E. AB N 1E 6 AR 14 12 -1 8 00 4 1 W8 0 K H 1 4 2 J A /6 2 O M RS C RO E. AB N 1E 1 AR 27 12 -1 0 00 8 1 W1 M H 1 5 1 J A /2 OM RS C RO E. AB N 1E 6 AR 23 12 -3 0 00 B 1 1 O M 1 01 J B W H RS M R E. O 1E 1 AR 13 12 -3 0 00 C 2 1 O M 1 01 J B W H RS M R E. O 1E 7 AR 38 12 -3 0 R J F 3 1 O M 1 0 1 2 E W .2 H RS M R E. O 1E 7 AR 48 12 -3 0 33 B 1 0 3 O M 1 0 R J B W .3 H RS M R E. O 1E 6 AR 19 12 -3 1 00 C 2 1 O M 1 05 J B W 5 H RS M R E. O 1E 7 AR 35 12 -3 4 00 E 3 4 O M 1 07 J F W 7 H RS M R E. O 1E 7 AR 01 12 -3 8 00 C 2 8 O M 1 02 J B W 2 H RS M R E. O 1E 7 AR 20 12 -3 1 00 E 3 1 0 O M 1 10 J F W 0 H RS M R E. O 1E 7 AR 15 12 -3 2 00 E 3 2 0 O M 1 12 J F W 2 H RS M R E. O 1E 7 AR 22 12 -3 0 R J F 3 6 K H 1 2 6 8 E W .8 O M RS M R E. O 1E 1 AR 18 12 -3 1 00 BB 1 1 0 K H 1% 1 48 F W 8 OM RS M R E. O 1E 1 AR 02 12 -8 0 00 8 1 W1 O M 1 0 1 J A /2 H RS F S BE E. UEL 1E 7 AR 32 12 -6 0 4 0 T 6 0V 0 O MT 2 3 V 1 N 3 T1 0K H /P R S A IA L E .V R B E 1 E R0 AV 6 1 12 -1 9 0 24 6 V2 KT W Y M 3 0 C 2 T 3 24 /P(D ,O ) P 1 E 73 AC 3 12 -1 F 1 4 2 0V10 KT 3 0 A0 0 T 5 4 /P M P 1 E 64 AC 0

30 -1 2 14 0 7 29 10 32 -1 1 00 4 1 10 JA 32 -1 3 00 4 1 13 JA 32 -1 4 00 4 1 17 JA 32 -1 0 R J A 1 2 2 44 33 -1 0 02 R 7 1 0 GA 34 -0 2 80 X 9 56 4 X 32 -1 0 00 4 1 21 JA 35 -3 1 05 0 8 11 02

K -29 4 O TE T 1 ,K R K 1 W1 0 O M /6 0 H 1 W3 0 O M /6 3 H 1 W4 0 O M /6 7 H 1 W2 O M /6 .4K H D L 0 3 RE P L -3 6 1,G E N3 I 5 68 4 2 -0 1 W1 K H /6 OM R 11 5 AT P G T 0 T A IN

S A U LT TA S -M N A AC S 'Y RS C RO E. AB N RS C RO E. AB N RS C RO E. AB N RS C RO E. AB N L D T X2 E ,K -X 8 WF R AE RS C RO E. AB N S IT HT C 9 0 W C A T1 7

1 P ST C WP B C A TS C 1 E 4 AR 06 1 E 4 AR 07 1 E 4 AR 08 1 E 4 AR 10 1 E 42 AD 0 1 E N 03 AC 4 2 E 4 ,R 0 AR 05 4 9 4 E W 1 W02 W03 W04 AS 40 .S 4 .S 4 .S 4

6-2. DIFFERENT PART LIST BY MODEL MODEL NOCKT. NO KT- 2914F KT- 2914DF KT- 2914DF 1 CRT SDI SDI LGP 2 C727 472,1.6KV M 332,1.6KV M 332,1.6KV M PP PP PP 3 C710 224,250V MPP 224,250V MPP 224,250V M PP 4 C709 564,250V MPP 524,250V MPP 524,250V M PP 5 C705 274,250V MPP 224,250V MPP 224,250V M PP 6 C702 104,250V MPP 104,250V MPP 104,250V M PP 7 T303 SCT- 82D SCT- 82D SCT- 82D 8 R730 2.4K,1/6W 1% 2.4K,1/6W 1% 2.4K,1/6W 1% 9 R215 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 11 T701 ET- 14 ET- 14 ET- 14 12 C706 103,250V MPP 103,250V MPP 103,250V M PP 13 R715 100, 3W 100, 3W 100, 3W 14 R113 1,1W 1,1W 2.2, 3W CRT 15 SINGLE DOUBLE DOUBLE SOCKET

KT- 2114DF KT-2114F ORION SDI 332,1.6KV MPP 332,1.6KV MPP 304,250V M PP 334,250V MPP 824,250V M PP 824,250V MPP 334,250V M PP 394,250V MPP 204,250V M PP 224,250V MPP SCT-82 SCT- 82 3.6K,1/6W 1% 3.6K,1/6W 1% 1.2, 1/2W 1.2, 1/2W 4.7, 1/2W 4.7, 1/2W NONE NONE NONE NONE NONE NONE 1,1W 1,1W SINGLE SINGLE

7. BLOCK DIAGRAM

AC INLET SOCKET

SWITCHING IC ( 6S1265R)

SWITCHING MODE

LINE FILTER

BRIDGE DIODE FEEDBACK CONTROL

POWER SUPPLY

DEGAUSSING

5V 6.3V 12V 14V -14V 85V 130V 250V

R,G,B INPUT OSD PROCESSOR ( WT6802 )

VIDEO AMP ( KA2506 )

VIDEO OUTPUT

CRT

CUT-OFF CONTROL

I©÷C

I©÷ C

I©÷ C

DPMS OUTPUT - SUSP END - OFF

MICRO

LED CONTROL

I©÷C

CONTROLLER UNIT

H/V SYNC INPUT ADJUST KEY TLIT

SYNC PROCESSOR (STV6888 or TDA9116 )

VERTICAL OUTPUT ( TDA8172 )

DEFLECTION YOKE

- HIGH V OLTAGE - H.FOCUS - V.FOCUS - SCREE N

( WT62P1 )

HORIZO NTAL DRIV E CIRCUIT

FLYBACK OUTPUT STAGE DEFLECTION TRANS

DYNAMIC FOCUS CIRCUIT B RIGHT CONTROL

I©÷ C

DDC 2BI - H/V SIZE - H/V POSI - S-PIN - TRAP - PARA - PIN BAL - ACL - TILT - DEG

S-CORRECTI ON CIRCUIT (S1~S4)

TLIT CONTROL

HIGH V OLTAGE P RO TECTIO N CIRCUIT

HIGH V OLTAGE DRIV E CIRCUIT

HIGH VOLTAGE OUTPUT STAGE

HIGH VOLTAGE REGULATION

TILT COIL

8. CONNECTING DIAGRAM

* CN407 & CN409orCN406= GGA/EGA * CN405 & CN404= VGA/SVGA 15PIN VGA SIGNAL IN CN407 CN405 CN406 5PIN,6PIN SIGNAL INPUT CN401 CN409 ¨Ø ¨Ø CN801

PIN NO. ¨ç ¨è CN4 06 R-IN G-IN B-IN GND V-S YNC H-SYNC CN409 R-IN G-IN B-IN GND H/V -SYNC

CN404 ¨Ø

CN411

¨é ¨ê ¨ë ¨ì

CN807

CN401

9. SCHEMATIC H/V 12V R103 TH101Q101 180K,1W 5 1 5V.3V 9OHM KSC1008R104 R102 130VV CN801 R101 DEGAUSS 12VCN411130V 5 47,1/4W 10K 1K R105 C1031 6.3V 1612V C801 5V +5V 130V 24 BD R R802 R106 CN411 3SDA 35 1K 220K 0.01U,500V 2SCL 6.8K 2 SCL L801 L802 R803 46 SDA 3 100U,16V 1 V_FLY G CN102 57 11 9 D101 C102 R-CUTT 1N4148 0.015U,M3 H-FLY 0.1U,50V1K Q801 68H-FLYBD 2N3904 22 9 + VSS 79 8 B IC801 0.01U,M 4 ACL-OC803R-OSD C804 1 2K,1/4W,F 10V-BLK R80610K 8 ACL-O 1 14 Q801R DE-COIL 8mm 9 VSSA 6 1.5K,5W R-GAIN KSP44 RL101 C1064 1 C105R107 5 V-BLK1KC80515 1N4148 R801R 910 R805N.C D803 2 16 +5V 10U,160V HR-CR7 7 3BLK 0.22U,M 1 8 VCO L801R 11 C808G-OSD 4 13 9 VDDA B-OSD 1.2UH IC101 14V 10 11G10.0047U,M R808+12V 14V-1 G1 12 SDA 5 11 680 H-S 0.22U,M D102 0.022U,M 3 LTV817 13 13 SCL 6VDD N.C R804R R806R 12V 4.7V 2 KA431BD 11 12 R810TEST H_FLYD801R +6.3V11 100 V-SQ802 7 12 2N3904 R808R 100,1/2W CN803 4.7K SDA 8 9 390 R812 220 1N4937 2200P,250VAC C108 IC102 L101 SCL 3.9K 1.5K UF4004C112 R811 10 12V 11 T101 D104 + WT6802L805 D803R 200V CN804 H-F 100R815390 1 18 C109 TH102 D103 R109 1N4148 SG801RGT-1P C110 C111 8D13 C116 17 1N4148680 BD 15*10*30 CN805 Q802R 11 V-F 1N4148 28+ KSP92 0.22U,275VAC R111 D105 1000U,16V 1 R819 1 B/U L1030.01U,500V + C801R L806 GT-1P 120K,1/2WC113 11 1U,100V,BP GT-1P BD 2 D106 IC802 C810 BD1000P,2K C816 CN807 100 R-OSD C813L807 T102 + 12 1 UF5404 0.1U,50V33,1/4WC803R R810R CN808 LF-40T 27 220U,16V D804RQ804R SG8021 23 G-OSD 316 1000U,16V CN806 R821 2G-OUT BD 33,1/4W10P,50V68K,1/4W G2 R822 10V R809R GT-1P 26 L808 UF5404 6.3V R-OUT C812R-CLP 34 R824 3G-CLP B-OSD R-OUT 1 C814 25 VI/OSD C815 45 C117 470U,16V IC103 C119 R113 B-OUT100 4 VCC3 R-INBDR825 Q805R KSP92 1.5KV 24 0.1U,50V 1 56K 56 C114GND D108 +-14V G-OUT0.1U,50V 1.,1W 100 6 GND3 C817 23 L809 VCC1 6 1N4148 5B-OUT KSP2222A 1 4 100K,1/2W 7B-CLP 22 R114220U,400V 414 GND1 330K,1/2WVFB 15 R115 2470P,1K 8 BLK 33,1/4WR813R Q806R 300V 21 C805R 12V UF4007 G-IN R814R 560 200K,1/2W 6 UF1G 0.1U,50V C819 R826 68,1/4W R812R SG803 33P,50V DRAIND121 1D107 9 CLP 20 BD VCC2 1N4148 10 0.1U,50V KSP44 C122 VS/S 31GF6 L104 19 B-IN 390 C120 0.1U,50VC121 BD 200K 3 5 813 VCC GND(L) 18 0.22U,275VAC 220P,2K 130V R831 18K 12 100 17 80V ACL-O G-CT ABL R-CT 13 16 SCL 11 R814390 R835 G-CUTT-GAIN R832 100 SCL + 6S1265R L105 + BD 15 R116 D109 D110 SDA 14 SDA B-CT BD47U,250V 4.7,1/4W 12 C101 L106 UF4004 R833 100 G1 100 + KA2506 + R834 B-CUTT-GAIN 100 AC-IN 33U,50VR118 31GF6 250V C125 711 CN103 C123 +6.8K,3W + 11 1U,50V 10 22 D112 C823 R836 100 D113 220U,16V 10mm 90~264Vac 31GF6 31GF6 SPT-82 L107 T103 BD C128 D114 0.1U,M 1N4148 C129 H_SYNC_IN INPUT 15P SIGNAL V_SYNC_IN R119 R120 R-IN D-SUB 180,1W 60T + VGA SVGA G-IN /EGA-Comp B-IN CGA-Comp 270,1/4W R123 OSD D116D117 BD 330C130 UF4007 D115 0.0022U,M 5VCN403SW401 COMPOSITE-INControl C131 12V R405 T104 L108 1N4148 47U,350V L109 BD R-IN 1 3 R406 1K 180UH D118 H-OUT2200P,250VAC 14V G-IN 2 4 100 KEY SW402 B-IN 14V-1 CN401 470 R124UG8JT R125 R126 R407 3 2 R408 390,1/2W LED 1K 1M,1/2W 1N4937 330 SW403 C1321M,1/2W 14V-1 1 + IC105 5V 4 1 IC104 0.001U,M 1 KA78R12 1 8 FB D119 C133VCC 1 3 R127 C135 LEVELR409 5.1V 0.7Vpp CN409 2.5Vpp 180P,50V Q102IC106 4 470U,16V 2 GND OUT 7 V-CTRL 5V 2 LED SW404 C137DRV KA7805 3 SUSPEND VIDEO LEVEL R403 2 R410 15,1/4W CN404 CN406 VIDEO R401 CN402 2.4K CN405 CN407 8.2K 1 D402 220P,50V 7N60IN 820K 3SYNC-I+C945YC 6 C/T C1384.7K Q401 2 1 24 15K,1/4W R128 220U,16V Q103 C3203 I-SENSE R129 R130 10,1/4W MC33260 Q402 D120 4 5 G-OUT D401 + ROTATION Q403 V_SYNC_IN ROTATION 12V GBU6J R131 R531 R532 H_SYNC-1 R-OUT 1N4148 C3202 4.7U,50V IC503/A B-OUT C402 C401 1001 C515 H_SYNC_IN(C/S) 0.1U,M H_SYNC_IN(C/S) 1M,1/2W PFC-OptionR533 3680P,50V R-OUT R404 A1270 6 220K R701 5 B-OUT C514 4 47K2470IC503/B G-OUT 220P,50V 74HC86 R537 IC503/C 47,3W C406 1K 10 74HC86 5.6V1 CN410 C/S S2 1K,1/4W S1ÀÌÇÏR703 S3C3198 GT-1P R413 R53511 V_SYNC_IND403 IC503/D 100 0.1U,50V 117KTABLE Q701 10013 1K L H_LIN L Q702C3203 L R702 R534 8R518 90.1U,MV_SYNC-1 33P,50V419 12V 0.15U,250V 1.5K CN701 100 74HC86 C516 12 C403 418 C404 L H 2 8.2K R536 C517 100P,50V 33P,50V 33P,50V 1 47K 329K~34K R705 H H 74HC86 R417 R R 18K C702 L V-DY 100C405 R706 R709 L 100 100 R708 217K~28K + 80V H H C502 0.01U,M 1N4148 1.2K 434K~38K D701 R201 12V 5V C501 22K V-FLY 100K H 10U,50V 18 1,1/2W R205C201 IC501 SCLQ704 R710 C945YC R202 V-BLK C301 R301 A0 SDA Q703 D-FOCUS VCC S1 19N20 1.2K R522 15K A1 NC R712 R715 0.1U,M + + 1000P,50V 100 36 A2 SCL 12V 10K,3W 47 100,3W C303 GND SDA C506 25 0.01U,M R524 C704 C41DC -14V 8.2K 1U,50V C305 V-FOCUS +14V 100 220P,2K IC201 IC301 R303 + 33P,50V R717 C503C505 R716 R718 18K TDA8172 H-SYNC-2SDA 1 SDA H-S-I 32 100 C504 1.2K IC502 2 VCC ACL 1 V-S-I10U,50V S2 Q706 V-S-I 31 100 33P,50V R719 100K C707T701 V-SYNC-2SCL 42 R514V_SYNC1 1000P,500V D+ D- R515 3 SCL 30 UN-LOCK 102,100V(PP) UNLOCK R304 PWM2 1K 41 4 GND 29 Q707 FC1 6.8K R307B-OUT R513 2 H-S-I 1K H_SYNC1R720 DFT-82 PWM1 27K,F 40 C945YC C706 5 H-OUT 2.2K 3 PWM4 H-SIZE PLL2C 39 1.2K19N20 82,2W + PWM0 R516 3.9K 0.012U,250V 6 X-RAY 47U,50V PWM3 27 H-OUT 5 PWM5 CO R308 38 R519 RESET 12V 7 28R309 2610K,F C508 4 PWM6 H_LIN HGND 6 PWM7 ROTATION 37 R3059.1K EW-OUT VDD R517 10K0.47U,63V(MP) 8 V-OUT RO 25 V-OUT1GND 4.7K C307 C708 Q708100K,1/2W 1U,50V 9 24 H-SIZE 1036 R521H_SYNC-2 R722 3.3U,50V,BP R721 R724 + C308 V-CAP PLL1F SDA 7 H-S-O V_SYNC-2 220,3W CN701 19N20 8 V-S-O OSC0 100 35 18K 100K R726 L701 1 1023 H-POS SCL 1134 R523 C309 7R5 2 9 CLAMP OSC1 100 LINEARITY C 0.15U,M H-FOCUS C310 1122 SDA2 R723 R310 VRB DEGAUSS 1219 C205C207 H-FLY 21 H-FLY C311 1.2K SCL2 S3 470U,16V 2.7K VEHT V-REF 0.47U,63V(MP) 1233 Q709 UF4004 PB3 PWM12 C945YC 1418 COMP 312 1332 R210 1U,50V VGND PB2 R211 0.22U,M L3011320 C208 1517 V-OUT1 V-OUT24.7U,50V REG-IN R311 0.0047U,M 150UH VGA-CAP R526 31 R525H/V-ADJ D7033T303 1430 PB1 PWM10 29 S3 1.2K 16 C2.7K SUSPEND 1.8K,1/4W R725 0.27U,250V 250V 10K,F 1.5,1/2W,F I-SENSE 1K HEHT LED 100 PWM11 R312 UN-LOCK 2.7K C710 52 H-DY 1527 PB0 PWM9 R212 R213 R216 1628 22K TDA9116 PROTECTION S2 IRQ PWM8 S1 6.8K,F 1.5,1/2W,F 1726 R505 PC7C509 SCL1 C713 D704 9 47U,350V R727 6 SCT-82D R728 1825 BAV21 PC6 1000P,500V 12K,F 22K,1/4W,F C711 H-SIZE8 L702 V-OUT2 12V MUTE PC1 R529 100 PC5 PC0 5V 12V R214 10U,50V X-RAY SDA1 PC4 30K,F R729 R731 BD + R730 C209 1.5,1/2W,F5V7X-RAY X501 1924 + KA358 PC3 PC2 47K 750 3K KEY 2122 R217 12VR2153PROTECTION 2023 + 4.7U,50V R601 5R602 IC601/A2.2K 5.6K 5.6K 6 + WT62P1 1 + R530 6.3V 2 12MHz 2.2K C714 R733 330P,1K Q710 11N40 C601 C512 10U,50V IC601/B 22P,50V D601 C716 L602 + 4.7K 100P,1K D70512VT702 R734 L7035.6K 47UH R603 KA35880V FUSEABL H-FLY1N4148 34 FUSEABLE BD 22,1/2W H/V R732 H-FLY R604 R605 L601HV V-F KSP92 H-F C604 Q601 12V C718 D60212K,F BD D604 0.47U,63V(MP) Q711 16 1,1/2W G2D605 4.7V MUTE D706GTT-82 T601 1N4148 1N4148 C719 R609 6.2K R607 R613 22U,50V1N4148 R 614 C603 D707 5.1K 2.2K 1 14 390K C607 0.1U,250V(MP) D603 UF1G C720 1N4148 0.47U,63V(MP) A733YC R737 V-FLY 47,3W 0.01U,M R610 C724D711 R611 1K 2 -47U,50V IC602 2N3904 BAV21 1 R608 R735 C5584 39K 1.5K + 1 + Q602 D608 + 16 D607 Q603 G1 C723 R736D709 SSS10N60 2 HF 270K,1/4W 1K 33U,50V Q712 6.8K 15 1N4148 + - VREF T703 1N4148 VF R615 3 HDT-82 L704 3 OUT1D610 C602 13 COMP 14 R618 100U,160V R616 GUR460 4 G2 12V VR601 1 UF4004BD D710 1K 6.8,1/4W +6 12 C725 6R738 R741 0.047U,M 13 100K 330K 12V 1N4148 C609 R621DEAD GUR460 D611 6 C2 12 0.056U,M 4VCCR619 IC701 R620 8 10,1/2W R747 C726VI R746 71.2,3W 11 1VREF 8 1N4148CT 6.8K7 C2 RT COMP Q604 5 E1 0.33,1W UF4004 R617 ACL Q713 11 200K,1/4W,F R744 R742 10K D612 10 5 8 Q605 27 GND Q607 4N200.027U,M6.8K 680P,50V 4.7,1/4W R745 VFB 2N3904 100 C729 0.0047,1.6K OUTC730 47 3 6 C732 C1 ISENSE C616 9 2N3906 7 10 2N3904 C728 5 0.1U,50V KA7500B470 L605 33U,50V D614 2.7K C737BD C733 D715 R624 L604 1K RT/CT D613 +8R630 R625 1K 1N4148C6145.1KQ606BD D615 + UF4007 R629 0.0022U,M 1.2,3W 7.5K 4GND BD C617 D616 9 UF4007 R622 12V 1000P,500V R749 KA3883C + C618 Q714C731 UF4004 100V,472J(PP) C945YC FQM19A002 + H-OUT R748 1U,50V L705 0.22U,63V(MP) C735 C736 220U,16V 220U,16V R633 75K Q715 C619 A733YC 0.01U,50V R631 R751 C734 R750 H/V_ADJ 330P,50V 18K ACL-O R632R634 3.3U,50V,BP 200K,1/4W,F + 10K,1/4W,F C622 C621 0.1U,250V(MP) SG601 22K D-FOCUS 4.7U,50V 3.9K,1/4W,F 1N4148 1.5KV D617 D809D807 D810D808 C834 D806 D811 3.3U,50V C822 0.1U,50V C806 100P,50V C807 100P,50V R827 R828 R829 R506 10K R507 220 C615 10U,250V C513 + R508 C620 4.7K R623 3.3U,50V,BP 1M,1/2W 22P,50V R509 4.7K R628 R510 4.7K 4.7K R511 4.7K R512 4.7K R752 22,1W D712 DTV56F C727 C717 0.0047,1.6K 0.0033U,M C722 0.022U,M R739 18K R740 D708 75K 1N4148 C709 C705 R402 0.56U,250V 10,1/4W 0.22U,250V 1U,50V C712 D702 D7140.047U,M 1N4007GP 1N4148 C721 10U,50V 75,1/4W C701 1U,50V C715 0.01U,500V + 2 D404 6 6 5.6V 5 5 4 4 3 3 2 2 1 1 1 R4142 120 3 R4154 120 6 120 C507 R4165 100P,50V 6 6 R501 4.7K 5 5 4 4 R502 4.7K 3 3 R503 10K 2 2 R504 4.7K 1 1 5 5 4 4 3 3 2 2 1 1 1 R411 100 2 3 4 R412 6 100 5 C802R 0.1U,M 33 22 Q803R KSC3503 R805R 2 33,1/4W 33 2 R807R 33,1/4W C804R 0.1U,250V R811R 47K 2 3 R802R 3.3K 330K R803R D805R 3 BAV21 2 R804 R807 R809 R813 3 2 3 2 + + + + + + + +

R206 C203 0.47,1/2W 31 F101 2200P,250VAC 470U,16V 53S250V3.15A C136 C204 0.068U,630V 0.1U,50V R207 D606 1.2,1/2W 1N4148 1 IN(-) 2N3904 5.6K 2 Q201 VCC C613R612 C606 100V,472J(PP) D202C945YC 0.1U,50V UF4004 C608 3R204 FLY 4.7K 1 4 C206 2 1U,50V 220U,16V 3 4 GND 2 1 1 2 5 OUT 6 C139 VCC 1U,50V 0.1U,50V R112 7 IN(+) 200K,1/2W 1 1 R208 4.7K R209 3 2 C107 390,1/2W 0.01U,M + D111 R110 UF4007 4 8 C306 0.056U,M C302 R306 + 4.7U,50V 2 1.2K GND C313 3 2 120P,50V 4 8 2 3 R626 10K,3W C612 C126 0.001,1.6K 100U,160V UF4007 R121 C610 220P,2K R627 220K,1/2W R117 C118 10K,3W 33K,1/2W R122 C304 220K,1/2W + C127 470U,16V 0.1U,M 470U,16V R302 R108 150K,1/4W 560,1/4W

C820 0.01U,500V 7 HT 1 GND G1 4 D812 G2 1N4937 2 7 FOCUS-V R830 FOCUS-H 220,1/2W8

C809 0.01U,500V

10. PRINT CIRCUIT BOARD

10-1 MAIN

247mm

247mm

10-2 VIDEO

98mm

128mm

25mm

150mm

Information

\KT-2914\KT-

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