1. Manuals
  2. Brands
  3. Diamond View Manuals
  4. Monitor
  5. DV154
  6. Service manual

Diamond View DV154 Service Manual

Hide thumbs Also See for DV154:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Manual
Diamond View LCD Monitor
DV154 / DV154B
February 2003
Manual Contents
Section
1. Engineering Specifications
2. Circuit Operation Theory
3. Alignment procedure
4. Trouble Shooting
5. DV154 Parts List
6. DV154B Parts List
7. Schematic Diagrams
8. Assembly
Service Guide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DV154 and is the answer not in the manual?

Questions and answers

Related Manuals for Diamond View DV154

Summary of Contents for Diamond View DV154

  • Page 1 Diamond View LCD Monitor DV154 / DV154B February 2003 Manual Contents Section 1. Engineering Specifications 2. Circuit Operation Theory 3. Alignment procedure 4. Trouble Shooting 5. DV154 Parts List 6. DV154B Parts List 7. Schematic Diagrams 8. Assembly Service Guide...

  • Page 2: Table Of Contents

    DV154/154B LCD Monitor Service Guide Engineering Specification Table of Contents 1. INTRODUCTION ..........................2 2. OPERATIONAL SPECIFICATION....................3 2.1 P ..........................3 OWER SUPPLY 2.2 S ..........................3 IGNAL INTERFACE 2.3 V ........................4 IDEO PERFORMANCE 2.4 S ............................4 CAN RANGE 2.5 P...

  • Page 3: Introduction

    DV154/154B LCD Monitor Service Guide Engineering Specification 1. Introduction This specification describes DV154, a 15.0” analog interface color TFT LCD monitor with speakers supported. The display supports up to 1024x768/75Hz resolution & refresh rate and 262,144 colors with dithering. The features summary is as below,...

  • Page 4: Operational Specification

    DV154/154B LCD Monitor Service Guide Engineering Specification 2. Operational Specification 2.1 Power supply Item Condition Spec OK N.A Remark √ Universal input full range 90~264VAC /47~63Hz Input Voltage range √ Input Current range 90 ~ 264VAC < 2.0 Arms √...

  • Page 5: Video Performance

    DV154/154B LCD Monitor Service Guide Engineering Specification Signal Assignment Signal Assignment Red video PC5V (+5 volt power) Green video Sync Ground Blue video Ground Ground Ground H-Sync (or H+V) Red Ground V-sync Green Ground Blue Ground 2.3 Video performance Item...

  • Page 6: Operational & Functional Specification

    DV154/154B LCD Monitor Service Guide Engineering Specification √ 800x600 37.88(P) 60.32(P) 40.00 1024X768 VESA √ 800x600 48.08(P) 72.19(P) 50.00 1024X768 VESA √ 800x600 46.86(P) 75.00(P) 49.50 1024X768 VESA √ 1024x768 48.36(N) 60.00(N) 65.00 1024X768 VESA √ 1024x768 56.48(N) 70.10(N) 75.00...

  • Page 7: Audio Performance

    DV154/154B LCD Monitor Service Guide Engineering Specification 3.5 Audio performance Item Condition Spec OK N.A Remark Preamp + Power amp √ (1)Output power 1 Wrms/CH @ 1KHz Real output √ <10% (2)THD (@ 1W) √ (3)S/N ratio 40dB Speaker Driver √...

  • Page 8: User Controls

    DV154/154B LCD Monitor Service Guide Engineering Specification 5. User Controls 5.1 User’s hardware control definition Item Condition Spec OK N. Remark √ Monitor Power button √ Enter button √ Right/Inc. button √ Left/Dec. button √ Exit button √ Auto key button √...

  • Page 9: Mechanical Characteristics

    DV154/154B LCD Monitor Service Guide Engineering Specification 6. Mechanical Characteristics 6.1 Dimension Item Condition Spec OK N. Remark √ Refer to Table 6 Bezel opening 304.1 228.1 √ Monitor without Stand L x W x H mm 354.1 x 316 x 64.5 mm √...

  • Page 10: Certification

    DV154 /154B LCD Monitor Service Guide Engineering Specification 7. Certification Item Condition Spec OK N. Remark √ ISO14000 Environment Green design API Doc. 715-C49 Requirement √ Blue Angel German Standard √ E-2000 Switzerland √ USA Standard √ EN61000-3-2 Harmonics √...

  • Page 11: Appendix: Physical Dimension Front View And Side View

    DV154/154B LCD Monitor Service Guide Engineering Specification Appendix: Physical Dimension Front View and Side view . 1 P HYSICAL IMENSION RONT IEW AND IDE VIEW...

  • Page 12: Circuit Operation Theory

    VESA standard. DV154 offers audio function with 2 speakers. II. Block diagram The DV154 consists of a head and a stand (base). The head consists of a LCD module with 2 lamps, a power board (include AC/DC, DC/DC, inverter and panel power), a control board and interface BD.

  • Page 13: Interface Board

    DV154/154B LCD Monitor Service Guide Circuit operation theory III. Circuit operation theory: A.) HEAD: A-1.) Interface board diagram: Interface Board Green & Blue Scaling module & PC_Hsyn Vblank Vsync VBLANK Hsync (/H+V) (a) Circuit operation theory: A basic operation theory for this interface board is to convert analog signals of Red, Green and Blue to digital signals of Red, Green and Blue.
  • Page 14 DV154/154B LCD Monitor Service Guide Circuit operation theory DDC data is store in 24C04(EEPROM). When MCU working, it will read DDC data from 24C04 then put those data to DDC RAM of MTV312. Those data related to LCD monitor specification.
  • Page 15 DV154/154B LCD Monitor Service Guide Circuit operation theory Fig. 2 #2 Rectifier and filter AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output voltage is 1.4*(AC input). (See Fig.3) TR601 BD601 SCK083...
  • Page 16 DV154/154B LCD Monitor Service Guide Circuit operation theory When the Q601 turns on, energy is stored in the transformer. During Q601 turn-off period, the stored energy is delivered to the secondary of transformer. R607, C607 and D601 is a snubber circuit. R615 is current sense resistor to control output power. (See Fig.4)
  • Page 17 DV154/154B LCD Monitor Service Guide Circuit operation theory R702 C705 C706 2200P 2200P 1/4W 5V-FIX L702 F702 D702 (5A) SB360 (SHORT) C707 C708 R704 1000U 470U 1/4W 105C 105C Fig. 5 #5 PWM Controller The current mode control IC UC3842B is used to control PWM. When the VCC terminal of it gets 16V, IC601 turns on. +5V will be set up at Pin8 through soft start circuit, which includes R617, C611, D606 and D605.
  • Page 18 DV154/154B LCD Monitor Service Guide Circuit operation theory C606 100U C618 105C R623 D604 C617 1N4148 105C Q601 SSS6N60A Q603 105C H945 R612 R610 (OPEN) 100K R613 ISSEN R616 IC601 3842B R617 (1%) R614 R615 100K D606 COMP 1N4148 C614...
  • Page 19 DV154/154B LCD Monitor Service Guide Circuit operation theory +5V-FIX R709 IC602 1/4W PC123 R711 9.1K (1%) C711 R622 IC702 R712 TL431 (1%) Fig. 7 #7.Audio Speaker: Connect with PC Audio output DC POWER AUDIO Connect with INPUT INPUT 8 ohm/2W...
  • Page 20 DV154/154B LCD Monitor Service Guide Circuit operation theory (c) Led: It indicates the DPMS status of this LCD monitor; green light means DPMS on (Normal operating condition). Amber light means DPMS off (Power off condition). Inverter Circuit Operation Theory Block Diagram:...
  • Page 21 DV154/154B LCD Monitor Service Guide Circuit operation theory Fig. 8 The Tl1451AC incorporates on a single monolithic chip all the functions required in the construction of two pulse-width modulation control circuits. Designed primarily for power supply control, the TL1451AC contains an on-chip 2.5V regulator two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage...
  • Page 22 DV154/154B LCD Monitor Service Guide Circuit operation theory 3.2 Royer Circuit Fig. 9 Royer circuit use the characteristic of transformer saturation to oscillate. When the DC power inject, Q739 or Q740 will turns on, and the current Ic increases. After a period, the transistor will leave the saturation status and Vce increase. The result cause the voltage of primary coil get lower .

  • Page 23: Alignment Procedure

    DV154/154B LCD Monitor Service Guide Alignment Procedure 1. Alignment procedure (for function adjustment) The list of necessary alignment for a LCD monitor: Items Description Remark Timing adjustment Preset timing Auto color balance adjustment Color temperature adjustment C1, C2 & C3...
  • Page 24 DV154/154B LCD Monitor Service Guide Alignment Procedure D. Color adjustment : 1. Setup input timing UVGA7, white pattern . 2. Enter factory setting area (press “EXIT” & “Enter” plus “power on”). 3. Confirm auto color balance adjustment had already done.
  • Page 25 DV154/154B LCD Monitor Service Guide Alignment Procedure F. Command definition : MCU COMMAND LIST FUNCTION BYTE1 BYTE2 BYTE3 BYTE4 write EEPROM bank0 write EEPROM bank1 read EEPROM bank0 read EEPROM bank1 enter factory mode exit factory mode clear(including auto phase)
  • Page 26 DV154/154B LCD Monitor Service Guide Alignment Procedure 2. Wire Dressing and assembling concern A. Lamp wire into holder panel wire : B. AC socket ground wire fix at standoff:...
  • Page 27 DV154/154B LCD Monitor Service Guide Alignment Procedure C. D-sub wire fix at standoff : D. Control board touch bracket-panel :...
  • Page 28 DV154/154B LCD Monitor Service Guide Alignment Procedure E. Add a gasket for TCO99...

  • Page 29: Trouble Shooting

    DV154/154B LCD Monitor Service Guide Trouble Shooting 1. No Display or display is unstable: Interface Board: No picture or picture unstable Power off Turn on power Are cables plug in Plug all wire then turn on power connectors? switch again.

  • Page 30: Button Function

    DV154/154B LCD Monitor Service Guide Trouble Shooting 2. BUTTON function: 2.1 Control Board OSD is unstable or not working Is control BD not connecting? Plug control BD then retry Is bottom switch normally? Replace control BD then retry Replace Control BD...
  • Page 31 DV154/154B LCD Monitor Service Guide Trouble Shooting 3. OSD function: OSD doesn’t work Is control BD working? Replace control BD Check interface BD...

  • Page 32: Power Board

    DV154/154B LCD Monitor Service Guide Trouble Shooting 4. Power Board Backlight didn't shine Replace new fuse PF751 broke? LED shined? Plug CN701 again PWM existed? Check BLT_ADJ Plug CN701 again 3.3V existed? or checking I/F BD (BLT_ADJ) signal existed or checking I/F BD...
  • Page 33 Model: DV154 Page: 1 PART NO. DESCRIPTION LOCATION ==== ============ ============================== ================================= 1 55.L6301.001 FP557A XN05/MRT MV I/F BD-MI 2 02.02404.002 IC EEPROM AT24C04-10PI-2.7 DI 3 04.00431.030 IC V.R. TL431C TO-92T 3P 4 09.1061D.01C CAP EL 10U 16V M RF5 5 09.10712.01C...
  • Page 34 59 23.4L630.001 SPK*2 2W 8 OHM 400MM 60 34.L4602.022 WAIT FOR FUTURE USAGE 61 34.L5501.021 SHD-MAIN SPTE 0.3T 62 40.L3303.171 LBL SPEC LR DIAMOND 63 42.L4604.001 CVR HINGE ABS-HB 002 64 42.L4612.001 CLIP TA-7 NY66 65 42.L4617.002 HLD PNL WIRE FR-ABS 66 46.L4601.021...
  • Page 35 Model: DV154B PART NO. DESCRIPTION LOCATION ============ ============================== ================================ 1 55.L6301.001 XN05/MRT MV I/F BD-MI 2 02.02404.002 IC EEPROM AT24C04-10PI-2.7 DI 3 04.00431.030 IC V.R. TL431C TO-92T 3P 4 09.1061D.01C CAP EL 10U 16V M RF5 5 09.10712.01C CAPACITOR EL 100U 25V M RF5 6 09.22514.01C CAP EL 2.2U 50V M RF5 7 09.22713.01C...
  • Page 36 61 23.4L630.001 SPK*2 2W 8 OHM 400MM 62 34.L4602.022 WAIT FOR FUTURE USAGE 63 34.L5501.021 SHD-MAIN SPTE 0.3T 64 40.L3303.171 LBL SPEC LR DIAMOND 65 42.L4604.001 CVR HINGE ABS-HB 002 66 42.L4612.001 CLIP TA-7 NY66 67 42.L4617.002 HLD PNL WIRE FR-ABS 68 46.L4601.021...
  • Page 37 Diamond View monitor (1 of 2)
  • Page 38 Diamond View monitor (2 of 2)
  • Page 39 G-B1 TP53 G-B2 20K2006030 G-B3 TP54 TP55 DENA TP56 TP77 20L2043045 G-B4 G-B5 B-B0 B-B1 B-B2 B-B3 B-B4 B-B5 RN10 DENA D-DE D-VSYNC D-HSYNC BEAD R116 D-CLK NO(CS0603) Diamond View Monitor DV154 Interface BD - Output Connector (1 of 6)
  • Page 40 100P 100P CON9 50V J 50V J 50V J 50V J 50V J 50V J 2N3906 3.3V_MCU +3.3V_MCU 2N3906 R110 47 R111 0 PC_5V 4.7K ZD3.3V PC5V_OFF 2N3904 Diamond View Monitor DV154 Interface BD - LCD Control (2 of 6)
  • Page 41 +3.3V_MCU +3.3V_MCU LED_AMB IRQ- LED_GRN 3.3V_MCU SOFT_SW 3.3V_MCU ENTER TP13 EXIT TP14 I-KEY TP15 TP16 R112 R113 TP17 TP76 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K CON10 R114 R115 3.3V_MCU Diamond View Monitor DV154 Interface BD - MCU (3 of 6)
  • Page 42 50V K 0.01u 1000 50V J 50V J 150P 5600P 50V J 50V J XIN/CLK MOUT XOUT R100 Diamond View Monitor 50V J R126 R123 R124 2781A 12MHZ open DV154 Interface BD - Mascot V (4 of 6) 50V J...
  • Page 43 50V K +3.3V_MCU CON16 BAV99 OPEN OPEN OPEN EPS1 MCU_VSYNC VSYNC M-VSYNC 74LVC14 74LVC14 3.3V_MCU 50V J HSYNC 0.1U 25V K M-HSYNC 74LVC14 74LVC14 50V J MCU_HSYNC Diamond View Monitor 74LVC14 74LVC14 DV154 Interface BD - VGA Input (5 of 6)
  • Page 44 Screw Holes Optical Points OP15 OP17 OP10 OP11 OP12 OP13 OP14 OP16 OP18 HOLE-V8 HOLE-V8 HOLE-V8 HOLE-V8 Diamond View Monitor DV154 Interface BD - Screw Hold (6 of 6)
  • Page 45 Diamond View DV154 assy drawing ITEM Part number Description Qty. 60.L6309.001 ASSY BZLMEA/AU 002 AUDIO FP557 56.07L67.011 LCDM 17" M170E5-L01/CMO 60.L6306.002 ASSY BKT-PNL(AU) AUDIO FP567 42.L4617.002 HLD PNL WIRE FR-ABS FP557A 55.L7302.XXX PCBA SPS BD E151FPB CMO 55.L7301.XXX PCBA I/F BD E151FPB CMO 34.L5501.021...
  • Page 46 DV154 DV154 assy drawing...
  • Page 47 Diamond View DV154B assy drawing ITEM Part number Description Qty. 60.L6309.011 ASSY BZL-MEA/AU 861 AUDIO FP557 56.07L67.011 LCDM 17" M170E5-L01/CMO 60.L6306.002 ASSY BKT-PNL(AU) AUDIO FP567 42.L4617.002 HLD PNL WIRE FR-ABS FP557A 55.L7302.XXX PCBA SPS BD E151FPB CMO 55.L7301.XXX PCBA I/F BD E151FPB CMO 34.L5501.021...
  • Page 48 DV154B Diamond View DV154B...

This manual is also suitable for:

Dv154b

Table of Contents