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COLOR MONITOR
SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

MODEL: VX930

VX930

SELECT

CHASSIS NO. : CA-111
FACTORY MODEL: EG994G

Содержание VX930

Страница 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL VX930 VX930 MENU SELECT CHASSIS NO CA 111 FACTORY MODEL EG994G ...

Страница 2: ...Image Size 365 8 x 274 3mm 14 40 x 10 80 Preset Image Size 350x 262 mm 13 78 x 10 31 4 2 Display Color Full Colors 4 3 Display Resolution 1600 x 1200 75Hz Non Interlace 4 4 Video Bandwidth 203 MHz 5 ENVIRONMENT 5 1 Operating Temperature 5 C 40 C Ambient 5 2 Relative Humidity 5 90 Non condensing 5 3 Altitude 10 000ft 6 DIMENSIONS with TILT SWIVEL Width 464mm 18 27 inch Depth 494mm 19 45 inch Height...

Страница 3: ...esign Soldering must be inspected for the cold solder joints frayed leads damaged insulation solder splashes or the sharp points Be sure to remove all foreign materials IMPLOSION PROTECTION All used display tubes are equipped with an integral implosion protection system but care should be taken to avoid damage and scratching during installation Use only same type display tubes X RADIATION The only...

Страница 4: ...60 004 16 666 15 880 0 786 0 062 0 124 0 600 1024 X 768 60Hz Yes MODE 6 37 500 26 667 20 317 6 349 0 508 2 032 3 810 75 000 13 333 12 800 0 533 0 027 0 080 0 427 640 X 480 75Hz Yes MODE 7 31 469 31 780 25 420 6 356 0 640 3 810 1 906 70 082 14 270 12 710 1 557 0 413 0 064 1 080 720 X 400 70Hz Yes MODE 8 79 976 12 504 9 481 3 022 0 119 1 067 1 837 75 025 13 329 12 804 0 525 0 013 0 038 0 475 1280 X ...

Страница 5: ...ange blink 3 Select Button Use this button to enter a selection in the on screen display 4 Buttons Use these buttons to choose or adjust items in the on screen display 5 MENU Button Use this button to enter or exit the on screen display OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW AC Power Socket Signal Connector ID Label Front Control Panel VX930 MENU SELECT Power ON OFF Button See Front Control P...

Страница 6: ...CONTROL LOCATIONS VR801 High Voltage Adjustment 27kV VR901 B Adjustment 190V Line ...

Страница 7: ...WIRING DIAGRAM 7 P451 P201 P401 P301 P302 G2 P702 P801 P402 P902 S S Signal Cable AC Socket FBT ...

Страница 8: ...ri ghtness Control 160V 40V 15V 12V MICOM WP62P1 SCL SDA H V Sync PWM Control Signal 12V 15V 190V DY CDT Heater 6 3V I2C I2C I2C H V Sync H V R G B Bias Bri ghtness R G B Contrast H Drive B Drive 15V I2C BRIGHTNESS CONTRAST H V POSITION H V SIZE ROTA TION SPCC PIN BALA NCE PA RALLELOGRAM TRAPEZOID TOP CORNER BOTTOM CORMOR H V MOIRE H CONVERGENCE COLOR CONTROL RECALL LA NGUAGE OSD TIME DEGAUSS INOF...

Страница 9: ...ut the circuit consists of Q913 and Q915 becomes off mode It s power consumption is below 8W 5 X ray Protection This circuit detects the rectified DC voltage comes from the FBT pin 4 If the high voltage of the FBT reaches up to about 30kV abnormal state H V control IC802 detects It stops B voltage supplied to the FBT T701 and high voltage is not be generated In the normal state the high voltage is...

Страница 10: ...abola wave from the TDA4841 IC801 and amplifies these waves to offer to the FBT T701 18 H V Blanking and Brightness Control This circuit eliminates the retrace line by supplying a negative pulse to the G1 of the CDT The brightness control circuit is used to control of the screen brightness by changing the video Black level 19 Image Rotation Tilt Circuit This circuit corrects the tilt of the screen...

Страница 11: ...nd 6 Adjust H POSITION as arrow keys to center of the screen 7 Adjust H SIZE as arrow keys to 350 2mm 8 Adjust V POSITION as arrow keys to center of the screen 9 Adjust V SIZE as arrow keys to 262 2mm 10 Adjust TILT as arrow keys to be the best condition 11 Adjust SIDE PIN Side Pincushion as arrow keys to be the best condition 12 Adjust TRAPEZOID as arrow keys to be the best condition 13 Display c...

Страница 12: ... command 20 Adjust ABL to 34 1FL of the luminance 21 Exit from the program 5 Input EDID Data 1 Display color 15 0 cross hatch pattern at Mode 8 2 EEPROM Write EDID command and confirm EDID Write OK message of monitor 3 Exit from the alignment program 4 Power switch OFF ON for EDID data save 6 Adjustment for Focus 1 Display H character in full screen at Mode 8 2 Adjust two Focus control on the FBT ...

Страница 13: ...BLE IN BRIDGE DIODE D901 TROUBLE IN FUSE F901 TROUBLE IN IC901 CHECK FUSE OK CHECK D901 BRIDGE DIODE NO YES YES NO NO CHECK C907 VOLTAGE 145VDC at 110V input 310VDC at 220V input TROUBLE IN D912 D911 Q902 ZD901 TROUBLE IN IC901 Q901 YES NO CHECK D912 D911 Q902 ZD901 YES ...

Страница 14: ...IN 18 19 20 PIN 6 5V CHECK IC303 PIN 1 3 5 PIN10 12V PIN 6 80V TROUBLE IN P301 SIGNAL CABLE PC SIGNAL TROUBLE IN IC302 P302 TROUBLE IN IC303 TROUBLE IN CDT SOCKET or CDT NO YES NO NO YES YES CHECK R G B CATHODE VOLTAGE TROUBLE IN IC304 NO YES NO CHARACTER ...

Страница 15: ...VOLTAGE AT D926 CATHODE 190V D923 CATHODE 80V D922 CATHODE 15V Q912 COLLECTOR 15V D921 CATHODE 6 3V CHECK IC401 MICOM PIN 6 5V HIGH IC801 PIN 10 15V HIGH ROTATE SCREEN CONTROL KNOB TROUBLE IN IC401 MICOM IC801 TROUBLE IN CDT SOCKET BOARD TROUBLE IN PRIMARY CIRCUIT OF T901 TROUBLE IN P302 SIGNAL CABLE AMBER MIN GREEN OK YES NO YES NO ...

Страница 16: ...FLECTION NO V DEFLECTION ONE HORIZONTAL LINE CHECK IC601 Pin 3 15V CHECK IC601 PIN 7 47V TROUBLE IN 15V LINE TROUBLE IN T701 PIN 4 D704 TROUBLE IN IC601 V CIRCUIT NO NO YES YES CHECK IC801 PIN 12 13 TROUBLE IN IC801 NO YES ...

Страница 17: ... INTO DPM MODE TROUBLE IN X401 IC401 TROUBLE IN IC401 TROUBLE IN IC401 TROUBLE IN T901 or PC NO H V SYNC SIGNAL INPUT H V SYNC NO NO NO DPMS TABLE Mode Item NORMAL STAND BY SUSPEND OFF H V SYNC ON ON OFF ON ON OFF OFF OFF LED GREEN AMBER AMBER AMBER VIDEO NORMAL OFF OFF OFF YES YES CHECK B LINE 12V 15V 80V 5V TROUBLE IN B LINE NO YES STAND BY SUSPEND OFF MODE FAILURE ...

Страница 18: ...HECK IC401 PIN 6 5V CHECK Q920 COLLECTOR VOLTAGE 15V CHECK P901 CHECK RL901 TROUBLE IN IC401 MICOM TROUBLE IN Q920 TROUBLE IN P901 TROUBLE IN RL901 TROUBLE IN TH901 DEGAUSSING COIL NO DEGAUSSING NO NO NO NO YES YES YES YES ...

Страница 19: ...MES IN CHECK IC301 PIN 18 V PULSE COMES IN CHECK IC301 PIN 13 14 15 IS THERE ANY SIGNAL WHEN OPERATING FRONT CONTROL NO OSD TROUBLE IN IC302 TROUBLE IN P302 TROUBLE IN P302 TROUBLE IN IC301 IC401 YES YES YES NO NO NO CHECK IC301 PIN 4 5V TROUBLE IN P302 NO YES ...

Страница 20: ...EXPLODED VIEW C A B 9 15 15 15 15 11 12 16 14 10 5 8 6 7 18 1 4 17 20 2 20 1 19 VX 93 0 ME NU SE LE CT 3 2 13 ...

Страница 21: ...COIL DEGAUSSING 75D 437 GET 0 45MM 110T 16 5 OHM L1330 CS990E CDT EARTH CS990E TIN WIRE BRAID 96 METAL ASSEMBLY FRAME EG994G_MX LOCAL FBT FLY BACK TRANSFORMER FQM19A008 EB990G SAMSUNG 19 FBT FLY BACK TRANSFORMER Y268202 EB990G HITACHI 19 FILTER CIRC EMC 02MD1 DELTA BK W O GND CABLE D SUB UL 2990 9C 7 5 AT 1870MM BLACK 9930 EG784G DM CABLE D SUB UL 2990 9C 7 5 AT 1870MM BLACK 9930 EG784G GM SHIELD ...

Страница 22: ...V Z F TA52 C410 0CK1040K945 0 1UF 50V Z F TR C417 0CK1040K945 0 1UF 50V Z F TR C452 0CE106CF638 10UF SHL SD 16V M FM5 TP 5 C453 0CE106CF638 10UF SHL SD 16V M FM5 TP 5 C454 0CK1040K945 0 1UF 50V Z F TR C455 0CK1040K945 0 1UF 50V Z F TR C459 0CK1010K515 100PF 50V K B TR C601 0CZZTFT001Q ECQB1H183JM3 MATSUSHITA 50V C602 181 288B MKT 100V 104JTR PHS26104 C603 0CK1020W515 1000P 500V K B TS C604 0CE477C...

Страница 23: ...S AL LOC NO PART NO DESCRIPTION SPECIFICATION D201 0DL305029BA LTL 305DJ 0C2 TP LITEON D301 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D302 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D303 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D304 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D305 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D306 0DS141489AB 1N4148 TP GRANDE DO 34 500MW D307 0DS124409AA 1SS244 TP ROHM KOREA...

Страница 24: ...FG SAMWHA 2 5 5 0MM FB304 125 155A BFD3510R2FG SAMWHA 3 5 10MM RADIAL DATE 2002 04 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION FB305 125 155A BFD3510R2FG SAMWHA 3 5 10MM FB306 125 022J FERRITE KQ 1 JS 3 5 5 0MM AXIAL FB307 125 022J FERRITE KQ 1 JS 3 5 5 0MM AXIAL FB308 125 022J FERRITE KQ 1 JS 3 5 5 0MM AXIAL FB309 125 155J BFS2550A0FG SAMWHA 2 5 5 0MM FB310 125 155J BFS2550A0FG SAMWHA 2 5 5 ...

Страница 25: ...31 0RD0472Q609 47 1 4W 3 5 TA52 R332 0RD0472Q609 47 1 4W 3 5 TA52 R333 0RD0472Q609 47 1 4W 3 5 TA52 DATE 2002 04 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R334 0RD1000Q609 100 1 4W 3 5 TA52 R335 0RD1000Q609 100 1 4W 3 5 TA52 R336 0RD1500Q609 150 1 4W 3 5 TA52 R337 0RD1800Q609 180 1 4W 3 5 TA52 R338 0RD1200Q609 120 1 4W 3 5 TA52 R339 0RD1004Q609 1M OHM 1 4 W 3 4 5 TA52 R340 0RD1004Q609 1M OH...

Страница 26: ...102F409 11K 1 6W 1 TA52 R827 0RN1002F409 10K 1 6W 1 TA52 R830 0RD1002Q609 10K 1 4W 3 5 TA52 DATE 2002 04 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R831 0RN1002F409 10K 1 6W 1 TA52 R835 0RD4700Q609 470 OHM 1 4 W 3 4 5 TA52 R836 0RD1002A609 10K OHM 1 2 W 7 0 5 TA52 R837 0RN1202F409 12K 1 6W 1 TA52 R838 0RD0101Q609 1 1 4W 3 5 TA52 R841 0RD5601Q609 5 60K 1 4W 3 5 TA52 R842 0RMZTWD001A 4 7 OHM 5...

Страница 27: ...ELTA BK W O GND SG301 6918TAT005E MTAS 201M GIGA AXIAL TAPING SG302 165 004A AG20PT 152F L3N S 23 HANDOK SG303 6918TAT005E MTAS 201M GIGA AXIAL TAPING SG304 6918TAT005E MTAS 201M GIGA AXIAL TAPING SG305 6918TAT005E MTAS 201M GIGA AXIAL TAPING SG701 165 004A AG20PT 152F L3N S 23 HANDOK SW201 140 058D SKHV10911A LGEC NON 12 20 SW202 140 058D SKHV10911A LGEC NON 12 20 SW203 140 058D SKHV10911A LGEC N...

Страница 28: ...L E0 E2 SDA SCL WC Vcc Vss DESCRIPTION Chip Enable Input Serial Data Address Input Output Serial Clock Write Control Supply Voltage Ground 1 PSDIP8 BN 0 25mm Frame 8 1 1 SO8 MN 150mil Width TSSOP8 DW 169mil Width 8 8 Logic Dirgram KA3843B Current Mode PWM Controller 8 2 7 5 7 6 5 1 3 4 5V VREF SET RESET INTERNAL BIAS LOGLC U V L O 36V OSCILLATOR R PWM LATCH C S COMP ERR AMP S T 1 3 1 2 VREF 1V Vcc...

Страница 29: ... 30 SCHEMATIC DIAGRAM ...

Страница 30: ... 32 UIT BOARD 4 MAIN BOARD Solder Side 2 CONTROL BOARD Solder Side ...

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