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Eastern Digital Co V700P Service Manual

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SERVICE MANUAL
COLOR MONITOR
700 SERIES
V700P
V702P
V710FD
V720FD
PROVISION
By
Eastern Digital Co.,Ltd.

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Summary of Contents for Eastern Digital Co V700P

  • Page 1 SERVICE MANUAL COLOR MONITOR 700 SERIES V700P V702P V710FD V720FD PROVISION Eastern Digital Co.,Ltd.
  • Page 2 THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS LIABILITY FOR CHANGES, ERRORS OR OMISSIONS, PRINTED DATE : DEC.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS PAGE 1. SPECIFICATIONS....................2. PRECAUTION AND NOTICES................2-1 SAFETY PRECAUTIONS ................2-2 PRODUCT SAFETY NOTICE ............... 2-3 SERVICE NOTES ................... 2-4 HIGH VOLTAGE WARNING ............... 3. OPERATING INSTRUCTIONS................4. ADJUSTMENT......................4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS ....... 4-2 MAIN ADJUSTMENTS ................. 4-3 ADJUSTMENT METHOD ................

  • Page 4: Specifications

    1. SPECIFICATIONS FOR 700 SERIES COLOR MONITOR 17inch 90 Degrees Defection, 0.27mm Dot Pitch, Non-Glare Screen. Display Size:320(H)×240(V)mm (max.) Scanning Frequencies Horizontal 30KHZ～70KHZ Vertical 50～120HZ Input Video Signal Mode 1 Mode 2 Mode3 Mode 4 Mode 5 RGB Analog RGB Analog RGB Analog RGB Analog RGB Analog...

  • Page 5: Precaution And Notices

    10. Humidity: 20﹪ to 85﹪ Relative, Non-Condensing Weight: 17″(700E/7001D): 16.5Kgs(Net), 19Kgs(Gross) • 12. Carton Dimensions 17″(700E/7001D): 542(L) ×485(W) ×470(H) ㎜ 13. External Connection: 15 Pin D-type Connector AC Power Cord 14. Regulations: FCC, CE, CCEE. 2. PRECAUTIONS AND NOTICES SAFETY PRECAUTIONS Observe all caution and safety related notes located inside the display cabinet.

  • Page 6: High Voltage Warning

    HIGH VOLTAGE WARNING Operation of monitor outside of cabinet or with back removed may cause a serious shock hazard. Work on this model should only be performed by those who are thoroughly familiar with precautions necessary when working on high voltage equipment.

  • Page 7: Operating Instructions

    3. OPERATING INSTRUCTIONS This procedure gives you instructions for installing. Position the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduit ground.

  • Page 8: Adjustment

    4. ADJUSTMENT 4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS Approximately 30 minutes should be allowed for warm up before proceeding. Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory. 4-2 MAIN ADJUSTMENTS 7001D MODEL: FUNCTION LOCATION...
  • Page 9 3. White balance and luminance adjustment: A. Bias (low light) adjustment: <Ⅰ> 9300°K Color temperature <a> Enter factory Setting menu, and select 9300°K Color temperature. <b> Input Signal F5 (Background Adj. Signal)/mode 1 (640×480 Fh: 31.6KHZ) H:300 ±5mm <c> Image Size: 700model V:225±5mm <d>...
  • Page 10 RELATIVE PLACEMENT OF TYPICAL COMPONENTS Purity Magnets 6-pole Convergence Magnets 4-pole Convergence Magnets Deflection Yoke 6. Convergence adjustment A. Produce a magenta crosshatch on the display. B. Adjust the focus for the best overall focus on the display. Also adjust the brightness to the desired condition. C.

  • Page 11: Circuit Description

    5. CIRCUIT DESCRIPTION 5-1 MICRO CIRCUIT IC301 is CPU, This CPU has the following functions. 1. Detect timing mode by sensing the horizontal frequency, vertical frequency, the polarity of Hor. Sync and Ver. Sync. 2. Keyboard scan control. ² 3. Geometry control internal D/A converters and I C bus control.
  • Page 12 5-5 TRANSISTOR & DIODE CIRCUIT LOCATION CIRCUIT FUNCTION DESCRIPTION D701 ~ D704 Bridge Rectifier for AC Source D705、D706 Clamp Diode for Snubber CKT D713 Rectifier for Output Voltage D714 Rectifier for Output Voltage D715 Rectifier for Output Voltage D716 Rectifier for Output Voltage D717 Rectifier for Output Voltage D603...

  • Page 13: Trouble Shooting Chart

    6.TROUBLE SHOOTING CHART 6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS 75V , 12V CHECK MAIN PC BOARD CHECK POWER SA VING CIRCUIT, IC701,Q701 CHECK THE HIGE VOLTAGE OF CRT ABOUT 23.5 ~ 25KV CHECK FAILSAFE CKT Q603, Q604 RELA TIVE CKT. CHECK THE VOLTAGE OF CRT HEATER ABOUT 6.3V CHECK CRT' S HEA TER...
  • Page 14 2.ABNORMAL VIDEO LEVEL ON SCREEN CHECK THE VOLTAGE OF IC801 PIN 2, 16 ABOUT 8V CHECK 8V RELA TIVE CIRCUIT CHECK THE SIGNAL INPUT OF R.G.B. ABOUT 0.7Vpp CHECK SIGNAL CABLE OR INTERFACE CARD CHECK IC801 PIN 11 ABOUT 10Vpp CHECK THE RELA TIVE CIRCUIT OF Q802 OR CLAMP CHECK THE VIDEO OUTPUT OF IC801...

  • Page 15: Abnormal Display

    6-2 ABNORMAL DISPLAY 1.NO SIGNAL ON SCREEN CHECK VIDEO IC VCC ABOUT 8V CHECK THE 12V PIN OF P803 CONNECTOR CHECK THE OUTPUT VOLTAGE OF IC801 PIN 13, 15, 18 ABOUT 3Vpp CHECK THE RELA TIVE CIRCUIT OF Q802 & IC801 CHECK THE B+ VOLTAGE OF VIDEO PCB ABOUT 75V CHECK THE 80V RELATIVE CIRCUIT...

  • Page 16: No Blanking

    6-3 NO BLANKING CHECK THE RELA TIVE CIRCUIT OF BLANKING CHECK THE RELA TIVE CIRCUIT OF Q623,Q624,Q625 ON MAIN PCB CHECK C825, R845 ON VIDEO PCB, CHECK G1 RELA TIVE CIRCUIT P803 PIN4 ON VIDEO PCB 6-4 HOR./OSC/DEF/HV CIRCUIT FAULT 1.

  • Page 17: Abnormal Horizontal Deflection

    6-5 ABNORMAL HORIZONTAL DEFLECTION 1. ABNORMAL HORIZONTAL SIZE READJUST H-SIZE FUNCTION CHECK THE RELATIVE CIRCUIT OF Q605, Q606, & Q607 CHECK FBT VOLTAGE ABOUT 67V AT FH=31KHz CHECK THE RELATIVE CIRCUIT OF SMPS. CHECK THE HV OF CRT ABOUT 24.5KV 2.

  • Page 18: Abnormal Vertical Scanning

    6-6 ABNORMAL VERTICAL SCANNING 1. ABNORMAL VERTICAL SIZE READJUST V-SIZE FUNCTION V ALUE CHECK THE IC601 ABOUT 11.8V PIN 2 CHECK D501, R509 RELA TIVE CIRCUIT CHECK VERT. AMP CIRCUIT IC501 CHECK THE VOLTAGE OF IC301 RELA TIVE CIRCUIT READJUST V-SIZE FUNCTION V ALUE CHECK IC601 PIN 21, 22, 23 RELA TIVE CIRCUIT 2.

  • Page 19: Side-Pin Cushion Distortion

    6-7 SIDE-PIN CUSHION DISTORTION READJUST SIDEPIN FUNCTION V ALUE CHECK IC601, Q605, Q606, Q607 RELA TIVE CKT. 6-8 POOR FOCUS READJUST FOCUS CONTROL CHECK T901,Q902, FOCUS LEAD WIRE, CRT SOCKET & CRT...

  • Page 20: Power Supply Trouble Shooting Chart

    6-9 POWER SUPPLY TROUBLE SHOOTING CHART BEFORE CHECK SW.REG. PLEASE REFER TO THE POWER SUPPLY BLOCK DIAGRAM POWER SUPPLY OUTPUT: (A) VARIABLE OUTPUT : 67V - 168V (DEPENDING UPON H.SYNC FREQUENCY) CONSTANT OUTPUT : 6.3V, 12V, -12V, 75V 67V , 20V , 12V CHECK MAIN PC BOARD CHECK POWER SA VING CIRCUIT, Q707, Q708...

  • Page 22: Block Diagram

    IC801 SIGNAL IC802 LM1279N 24.5KV CABLE LM2439T PRE.AMP. FOCUSG2HVG1 FUNCTION KEY +/- OR ENCODE IC803 OSD SWITCH OSD-1 IC IC301 IC601 Q603,T601 Q604,T602 (FBT) TDA9109 VERT.&HOR.OSC HOR.DRIVER HOR.O/P Q705,Q706 X-RAY PROTECTION Q707,Q708 POWER Q606,Q605,Q607 IC501 PINCUSHION & TDA8172 H-SIZE CONTROL VERT.O/P Q603,Q624,Q625 BLANKING CIRCUIT...

  • Page 23: Smps Block Diagram

    Q707 Q708 OUTPUT OUTPUTS RECTIFIED DEGAUSSING RECTIFIED T701 -12V & & C.K.T SMOOTHED SMOOTHED POWER Q705 8.5V TRANSFORMER 6.3V Q706 RECTIFIED START & L715 R708,R709 SMOOTHED V ARI. TRANSFORMER Q701 POWER IC301 POWER CONTROL ON/OFF & MOOSFET SWITCH PWM O/P 67V-168V IC701 V ARIABLE...

  • Page 24: Ic Block Diagrams

    9. IC BLOCK DIAGRAMS IC301 MTV112MN3 H-SIZE BRIGHTNESS CONTRAST WRITE PROTECT SELECT RESET HSCL VOLUME HSDA TEST ROTATION H.SYNC DEGUASS STAND BY V.SYNC IN H-OUT SUSPEND MUTE V-OUT POWER INDICATE SYSTEM SETUP SYSTEM SETUP IC802 LM2439T IC802 LM2439T IC802 LM2439T IC802 LM2439T Vin 1 Vin 2...
  • Page 25 IC302 24C04 HV GENERATOR MEMORY EEPROM ARRAY CONTROL CONTROL (128X8) LOGIC LOGIC XDEC PAGE LATCHES YDEC SENSE AMP R.W CONTROL IC601 TDA9302H IC302 24C04 FLYBACK IC803 OSD-1 IC GENERATOR POWER AMPLITIER V.SYNC THERMAL PROTECTION H-SYNC OSD B OSD G OSD R...
  • Page 26 IC701 3842 IC901 3842 SET/ Vref Vref RESET U.V.L.O. INTERNAL LOGLC BIAS 1/2 Vref C.S. COMP COMP. LATCH OSCILLATOR Ct/Rt IC801 LM1279 RED OSD IN GREEN OSD IN VCC1 BLUE OSD IN RED VIDEO IN RED OUT R CLAMP CAP RED DRIVE GREEN VIDEO IN VCC2...
  • Page 27 IC601 9109/2511 PLL1F HPOSITION HEL Y PLL2C HOUT HGND PHASE/FREQUENCY H-DUTY HOUT PHASE PHASE VGND COMP ARA TOR SHIFTER BUFFER (5 bits) COMPARA TOR H-PHASE(7 bits) BGND SAFE FREQ SAFETY SYNC INPUT FREE H/HVIN Spin Bal PROCESSOR 2bits XRAY SYNC SELECT RUNNING 6 bits...

  • Page 28: Parts Listing

    PART No. SPECIFICATION LOCATION REMARKS 003-000-700E Plastic Material Code Label 005-000-700E Carton 005-002-7001D Carton FOR 7001D 400-117-D200 17″CRT 441-001-700E Rotation Coil 550-001-700E Lens for LED 600-151-0301X 1500mm Power Cable 610-151-1321X 1500mm Signal Cable 627-001-6417 CRT Grounding Wire 640-003-0020 3.0×20mm Shrinking Tube 641-002-1512 150mm Black Wire Tie 650-651-0102...
  • Page 29 110-101-0856 100Ω 1/8W R309 ±5% 110-101-0856 100Ω 1/8W R310 ±5% 110-101-0856 100Ω 1/8W R501 ±5% 110-101-0856 100Ω 1/8W R601 ±5% 110-101-0856 100Ω 1/8W R311 ±5% 110-101-0856 100Ω 1/8W R514 ±5% 110-101-0856 100Ω 1/8W R312 ±5% 110-101-0856 100Ω 1/8W R513 ±5% 110-101-0856 100Ω...
  • Page 30 110-122-0456 1.2K 1/4W R910 ±5% 110-123-0856 1/8W R674 ±5% 110-1R5-0256 1.5Ω 1/2W R507 ±5% 110-150-0256 15Ω 1/2W R617 ±5% 110-152-0856 1.5K 1/8W R675 ±5% 110-152-0856 1.5K 1/8W R689 ±5% 110-152-0856 1.5K 1/8W R668 ±5% 110-152-0856 1.5K 1/8W R903 ±5% 110-152-0856 1.5K 1/8W R673...
  • Page 31 110-363-0856 1/8W R503 ±5% 110-392-0856 3.9K 1/8W R611 ±5% 110-392-0856 3.9K 1/8W R714 ±5% 110-393-0856 1/8W R650 ±5% 110-4R7-0856 4.7Ω 1/8W R731 ±5% 110-470-0856 47Ω 1/8W R906 ±5% 110-470-0856 47Ω 1/8W R901 ±5% 110-470-0856 47Ω 1/8W R715 ±5% 110-470-0856 47Ω 1/8W R306 ±5%...
  • Page 32 110-473-0856 1/8W R641 ±5% 110-473-0456 1/4W R621 ±5% 110-473-0456 1/4W R631 ±5% 110-473-0456 1/4W R625 ±5% 110-474-0456 470K 1/4W R678 ±5% 110-474-0856 470K 1/8W R605 ±5% 110-474-0856 470K 1/8W R623 ±5% 110-474-0856 470K 1/8W R627 ±5% 110-474-0856 470K 1/8W R629 ±5% 110-475-0256 4.7M...
  • Page 33 113-470-3059 47Ω R683 ±5% 113-473-2059 R709 ±5% 113-501-3059 500Ω R615 ±5% 113-R51-2059 0.51Ω R510 ±5% 113-R51-2059 0.51Ω R738 ±5% 113-514-2059 510K R912 ±5% 113-821-3059 820Ω R739 ±5% 131-102-0577 Ф 6 Horizontal VR701 ±20% 131-102-0573 Ф 6 Vertical VR602 ±20% 131-102-0573 Ф...
  • Page 34 200-101-2523 100uF/25V 105℃ C510 ±20% 200-101-2523 100uF/25V 105℃ C634 ±20% 200-101-2523 100uF/25V 105℃ C732 ±20% 200-101-2523 100uF/25V 105℃ C640 ±20% 200-101-2523 100uF/25V 105℃ C639 ±20% 200-101-0123 100uF/100V ±20% 105℃ C726 200-102-2522 1000uF/25V ±20% 85℃ C720 200-2R2-5023 2.2uF/50V 105℃ C632 ±20% 200-220-0323 22uF/220V 105℃...
  • Page 35 207-104-1472 0.1uF/50V C610 ±20% 207-104-1472 0.1uF/50V C641 ±20% 207-104-1472 0.1uF/50V C513 ±20% 207-104-1472 0.1uF/50V C509 ±20% 207-104-1472 0.1uF/50V C302 ±20% 207-104-1472 0.1uF/50V C512 ±20% 207-104-1472 0.1uF/50V C303 ±20% 207-104-1472 0.1uF/50V C612 ±20% 207-104-1472 0.1uF/50V C506 ±20% 207-104-1472 0.1uF/50V C305 ±20% 207-104-1472 0.1uF/50V C647...
  • Page 36 218-103-0252 0.01uF/250V C650 ±5% 218-104-0252 0.1uF/250V C644 ±5% 218-104-0252 0.1uF/250V C638 ±5% 218-104-0252 0.1uF/250V C636 ±5% 218-154-0552 0.15uF/50V C503 ±5% 218-334-0552 0.33uF/50V C609 ±5% 218-474-0552 0.47uF/50V C502 ±5% 219-474-0262 0.47uF/250VAC ± 10% MPP X-CAP,UL C701 226-103-0152 0.01uF/100V C604 ±5% 226-103-0152 0.01uF/100V C716 ±5%...
  • Page 37 310-023-C945 2SC945P TR. NPN 310-023-C945 2SC945P TR. NPN 310-031-D667 2SD667C TR. NPN Q618 310-070-P122 TIP122 TR. NPN Q607 310-123-4523 BU4523AX TR. NPN Q604 310-230-F422 BF422 TR. NPN Q625 310-230-F422 BF422 TR. NPN Q622 310-230-F422 BF422 TR. NPN Q603 310-230-F422 BF422 TR.
  • Page 38 322-010-R104 HER104 Diode D602 322-010-R104 HER104 Diode D606 322-010-R104 HER104 Diode D603 322-010-R108 HER108 Diode D705 322-010-R108 HER108 Diode D706 322-010-R108 HER108 Diode D901 322-010-R108 HER108 Diode D902 322-020-R205 HER205 Diode D714 322-020-R205 HER205 Diode D715 322-030-R303 HER303 Diode D713 322-020-L207 RL207 Diode...
  • Page 39 446-001-0306 3.5×6mm Core Inductor L707 446-001-0306 3.5×6mm Core Inductor L706 446-001-2813 28×13mm Magnetic Core 511-100-0002 26D Color CRT Socket 512-008-0001 8pin DIP Socket IC302 630-002-1001 0.6mm 2pin Housing P703 630-002-2002 1.6mm 2pin Degaussing Housing P702 630-002-5002 L1.1mm 2pin Square Housing P706 630-004-3001 2.5mm...
  • Page 40 622-206-9101 0.6×7.5mm Jumper J171 622-206-9101 Ф 0.6×7.5mm Jumper J174 622-206-9101 Ф 0.6×7.5mm Jumper J175 622-206-9101 Ф 0.6×7.5mm Jumper J176 622-206-9101 Ф 0.6×7.5mm Jumper J177 622-206-9101 Ф 0.6×7.5mm Jumper J182 622-206-9101 Ф 0.6×7.5mm Jumper J186 622-206-9101 Ф 0.6×7.5mm Jumper J192 622-206-9101 Ф...
  • Page 41 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper J166 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper J181 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф 0.6×10mm Jumper 622-206-1001 Ф...
  • Page 42 Ф 3×8mm Screw Round-head with washer ISO 703-008-3033 Ф 4×8mm Screw Round-head with washer ISO 703-008-4003 Ф 3×10mm Screw Round-head with washer TP1 703-010-3013 FOR 7001D 703-014-3013 Ф 3×14mm Screw Round-head with washer TP1 710-003-Ф 313 Ф 3mm 710-6R9-3012 Ф 6.9mm 711-006-0030 Ф...
  • Page 43 110-103-0856 1/8W R835 ±5% 110-103-0856 1/8W R829 ±5% 110-104-0256 100K 1/2W R846 ±5% 110-105-0856 1/8W R828 ±5% 110-105-0856 1/8W R831 ±5% 110-105-0856 1/8W R834 ±5% 110-154-0856 150K 1/8W R839 ±5% 110-154-0856 150K 1/8W R843 ±5% 110-154-0856 150K 1/8W R841 ±5% 110-201-0856 200Ω...
  • Page 44 200-100-5023 10uF/50V 105℃ C836 ±20% 200-100-5023 10uF/50V 105℃ C813 ±20% 200-100-5023 10uF/50V 105℃ C814 ±20% 200-100-5023 10uF/50V 105℃ C812 ±20% 200-100-5023 10uF/50V 105℃ C807 ±20% 200-100-5023 10uF/50V 105℃ C803 ±20% 200-100-5023 10uF/50V 105℃ C802 ±20% 200-100-5023 10uF/50V 105℃ C801 ±20% 200-101-2523 100uF/25V 105℃...
  • Page 45 310-230-F422 BF422 TR. NPN Q806 310-230-F422 BF422 TR. NPN Q804 320-006-4148 IN4148 Diode D805 320-006-4148 IN4148 Diode D810 320-006-4148 IN4148 Diode D815 320-006-4148 IN4148 Diode D818 320-006-4148 IN4148 Diode D812 320-006-4148 IN4148 Diode D819 320-006-4148 IN4148 Diode D806 320-006-4148 IN4148 Diode D814 320-006-4148...

  • Page 46: Pcb Layout

    120-005-700E Heat Sink for LM2439T 121-000-700E Shield for CRT Board 700-008-3033 Ф 3×8mm Screw Round-head ISO 710-003-Ф 313 Ф 3mm 711-013-0032 Ф 3.2mm Spring Washer PARTS LIST OF KEYBOARD PART No. SPECIFICATION LOCATION REMARKS 100-300-700D Key Board 110-152-0856 1.5K 1/8W FOR 7001D ±5% 110-302-0856...
  • Page 48 11-2 CRT BOARD LAYOUT...

  • Page 49: Schematic Diagram

    12 SCHEMATIC DIAGRAM...

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V720fdV702pV710fd

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