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Diamond View DV155 Service Manual

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___________________________________________________________________________________________
DIAMOND VIEW
_________________________________________________________________
Service Manual for Diamond View
TFT Monitors: DV155 & DV155B
___________________________________________________
___________________________
___
The release of this document is under control of the company. Extra copies
of this document must be by written permission of the product manager.
______________________________________________________
________________________
___

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  • Page 1 ___________________________________________________________________________________________ DIAMOND VIEW _________________________________________________________________ Service Manual for Diamond View TFT Monitors: DV155 & DV155B ___________________________________________________ ___________________________ The release of this document is under control of the company. Extra copies of this document must be by written permission of the product manager.

  • Page 2: Table Of Contents

    7. NECESSARY EQUIPMENT LIST 8. BLOCK DIAGRAM 9. CONDUCTOR VIEW 10. SCHEMATIC DIAGRAM 11. EXPLODED VIEW 12. TROUBLE SHOOTING HINTS 13. REPLACEMENT PARTS LIST 14. SPARE PARTS LIST 15. AUTO BALANCE _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 2 of 44...

  • Page 3: Warning

    Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt within this service information by anyone else could result in serious injury or death. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 3 of 44...

  • Page 4: Safety Precautions

    1 milliamp. In the case of a measurement exceeding the 1 milliamp value, a rework is required to eliminate the chance of a shock hazard. AC VOLTMETER 0.15u 1500 Earth Ground To Metal Parts _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 4 of 44...

  • Page 5: Dimensions

    Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ 1. DIMENSIONS (Unit: mm) 1.1 Front View (ID1) 1.2 Top View _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 5 of 44...
  • Page 6 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ 1.3 Rear View 1.4 Side View _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 6 of 44...

  • Page 7: General Information

    2.2.8 Superior display performance High contrast: 400: 1(Typical) High brightness: 250 cd / m2 (Typical) Wide view angle: 120 / 90 degrees (H/V) 2.2.9 Special function VESA DDC2B (Display Data Channel) Compatible _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 7 of 44...

  • Page 8: Specifications

    0.297 mm Response time Typical 25 ms View angle (L/R/T/B) 60/60/55/45 degrees Color coordinate white x=0.312,y=0.318 3.4. CONNECTORS 3.4.1 AC inlet: CEE22 typed connector 3.4.2 Audio: Line-in receptacle PHONEJACK STEREO _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 8 of 44...
  • Page 9 < 1 Watts < 30 seconds Remark: In case of “no signal“ Power LED must be amber. At first power on w/o signal LED will be green + message on screen. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 9 of 44...
  • Page 10 + / + - /- + / + + / + Note: *Indicates horizontal front / back porch includes borders # Indicates vertical front / back porch includes borders 3.5.6 General performance _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 10 of 44...
  • Page 11 -20°C - +60° C Humidity: 10% - 85% Height: 3000 m Air pressure: 700 - 1060 mbar Transport (packed) Temperature: -30°C - +60° C Humidity: 5% - 95% Height: 12000 m _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 11 of 44...
  • Page 12 Signal cable with Mini D-Sub 15P connectors, Length: 1.8 meter. 3.11. RELIABILITY MTBF > 30000hrs (demonstrated MTBF) For LCD panel: The brightness is still more than 50% of the original brightness after: typ. 20.000 hours _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 12 of 44...

  • Page 13: Theory Of Operation

    Panel interface (Pin 66~137) The MST8016 driver interface is highly programmable. It supports dual bus / dual port for XGA drivers. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 13 of 44...
  • Page 14 P6.0 (KEY in) Control button input P3.1 (VGA SDA) EDID data connect to VGA port P3.5 (VGA SCL) EDID clock connect to VGA port P1.4 (Reset) Provide Reset signal for MST8016 _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 14 of 44...
  • Page 15 TDA7496 can directly drive 8 ohms speaker, does not require output coupling capacitor, bootstrap capacitor, or snubber network. Audio line-in are fed into pin 4,8 of the AN7522. The output power is controlled by the DC voltage of pin 39 from MTV312 I / O port. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 15 of 44...

  • Page 16: Disassembly Instructions

    1) remove four large screw "1" from the rear cover 2) remove the back cover 2. Bezel removal 1) remove screw "1" & “2” from the Bezel 2) remove the bezel _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 16 of 44...
  • Page 17 4) remove cable 4 & 5 then remove Power/Inv board 4. AD board removal 1) remove cables 1, 4 & 5 2) remove screw “2” & “3” 3) remove the AD board _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 17 of 44...

  • Page 18: Control Location

    2. Perform Auto configuration. POWER POWER Switch Power ON/OFF LED Status Color Status Description Green Normal status Enter Sleep Mode status or use “Power + Auto” key enter Amber factory mode _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 18 of 44...
  • Page 19 This menu will display about 45 seconds. Auto Configuration When user press the select/Auto key under none OSD status will trigger this dialog appear and perform Auto Configuration procedure. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 19 of 44...
  • Page 20 5 seconds for testing the power consumer. Out Of Range When user input the video signal out of spec this dialog will appear about 20 seconds. And then enter the Sleep mode. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 20 of 44...
  • Page 21 Adjust the horizontal position of the picture. Color Adjustment There are four items for color adjustment: 9300K: Bluish white 6500K: Reddish white User defined: Red, Green, Blue. Adjust to set your own color level. _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 21 of 44...
  • Page 22 VERSION: Display F/W version and panel vender and DDC serial no. /A: LG panel /B: CPT panel /C: Hanstar panel /D: Sharp panel _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 22 of 44...

  • Page 23: Necessary Equipment List

    3 Video Generator: Chroma 2000, 2135,2250 or equivalent like test program (Display Mate) 4 Color Analyzer: Minolta CA110, Chroma or equivalent 5 Watt / Power Meter 6 10 Times Magnifier 7 Multimeter 8 Oscilloscope _____________________________________________________________________________________________________________________________ DV155 & DV155B service manual Page: 23 of 44...

  • Page 25: Block Diagram

    8. BLOCK DIAGRAM L5TD Block Diagram Main Board LCD Monitor Button & LED Board CPU(with Flash ROM) Myson MTV312 DDC signal PC VGA port R, G, B x 6 bits x dual pixel = 36bits Panel power, clock, Hs, Vs, DEN TFT LCD MSTAR MST8016...

  • Page 26: Conductor View

    Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ 9. CONDUCTOR VIEW Main Board Silkscreen Top _________________________ __________________________________________ ________________________________ DV155 & DV155B Page: 26...
  • Page 27 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ Main Board Top Layer _________________________ _______ ___________________________________ ________________________________ DV155 & DV155B Page: 27...
  • Page 28 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ Main Board Button Layer _________________________ __________________________________________ ________________________________ DV155 & DV155B Page: 28...
  • Page 29 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ Button Board Silkscreen Button Board Layer Bottom _________________________ __________________________________________ ________________________________ DV155 & DV155B Page: 29...

  • Page 30: Schematic Diagram

    Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ 10. SCHEMATIC DIAGRAM Main Board 100/6 VGA_SDA_O SDA-VGA 0.047u RED+IN 100/6 RED+ RED+IN RED-IN DDC-SDA GREEN+IN 0.047u GREEN-IN RED-IN 75/6/F 100/6 RED- IN-H BLUE+IN BLUE-IN IN-V 0.047u GREEN+IN 100/6 GREEN+ DDC-SCL 100/6 DSUB_5V_O DSUB_5V...
  • Page 31 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ VPLL VDVI VDPLL VDD3V3 CX601T02001/8 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6 LVACKP RA0P LVACKM RA0N RED+ FB2P RIN0 RA1P RED- FB2N RIN0M RA1N GREEN+ FB1P GIN0 RA2P FB1N GREEN- GIN0M RA2N FB0P SOGIN...
  • Page 32 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ Q7 SI2301DS VCC12 Q9 SI2301DS VDD3V3 LCDVDD LCDVCC L CDVDD LCDVCC 2200P/6 47K/6 0.1U/6 330U/16V 2200P/6 47K/6 0.1U/6 330U/16V 2200P/6 2200P/6 100K/6 82K/6 10K/6 100K/6 Q10 DTC144EUA DTC144EUA VDDCTRL_1 VDDCTRL_2 FB0N FB0P FB1N BB2P...
  • Page 33 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ VCPU VCPU VCPU 0.1U/6 2K/6 2K/6 SCL_O 1U/6 SDA_O VDD3V3 VDD3V3 VDD3V3 VDD3V3 24LC16B PARAME 82K/6 EEPROM VCPU VDD3V3 100/6 10K/6 1K/6 100/6 470/6 470/6 1N4148/NC PWR KEY KEY_O CX601T02001/6 VDD3 KEY_IN IN_O 100/6 CX601T02001/6 P1.0...
  • Page 34 Diamond View DV155 & DV155B _____________________________________________________________________________________________________________________ Button Board POWER ON/OFF POWER ON/OFF HDK632R-ST TO BOARD CN10 POWER ON/OFF KEY 1 LEDG LEDR R100 HDK632R-ST 4606-05-05P-R 220/8 DOWN DOWN DOWN R101 HDK632R-ST 330/8 LEFT LEFT LEFT HDK632R-ST R102 560/8 RIGH RIGH...
  • Page 35 11. EXPLODED VIEW...
  • Page 36 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 12. Trouble Shooting Hints 1. No Power NO POWER Check CN6 Change in AD board?? 14pins cable Change 14pin cable Check CN6 pin 8, 10 Check CN6 pin1,4 Change In AD board ? 3.3V correct ?
  • Page 37 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 2. No Audio NO AUDIO Check connector Correct it CN2 ? Check IC301 pin 1,5 Correct it Audio input ? Check 3, 10 of IC301 OSD control Volume, mute Mute, Volume Check IC301 Correct it...
  • Page 38 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 3. 3. No Characters, Missing one Color No Characters Missing Color Check VGA cable Check CN2 VGA cable? Check U2 output? Check CN7 Change CN7 adjust LCD connectors? Re-adjust Check FFC _________________________ _______ ___________________________________ ________________________________ DV155 &...
  • Page 39 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 13. REPLACEMENT PARTS LIST 13.1 Scaler Board Part Number Location Part Description 1L5TZZZMT09 L5TL-M LCD MONITOR(CPT) 1 22L5TMB0007 L5TD M/B ASSY 2 38L5TCS0005 L5TD M/B S/S ASSY 3 AJ08016FF01 1 U2 IC(128P) MST8016(85MHZ,FQFP) 3 AJ00312VP18...
  • Page 40 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 3 CS13903J902 1 R25 RES CHIP 390 1/10W +-5%(0603) 3 CS14703J908 2 R43,R44 RESISTOR CHIP 470 1/10W+-5%(0603) 3 CS21003J906 7 R14,R17,R46,R57,R58, RES CHIP 1K 1/10W +-5%(0603) R60,R61 3 CS22003J909 4 R15,R18,R33,R34 RES CHIP 2K 1/10W +-5%(0603)
  • Page 41 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 14. SPARE PARTS LIST Material Descripition Q'ty 21L5TSB0050 L5TL-M SCALAR/B ASSY (CPT) AS0201260C1 ADP/INV W/AUD W/OSW ADP-26AFDA 90~264V1A 23L5TBB0038 L5TL-B BUTTON/B ASSY 32L5TLSMT00 L5TL-M LCD BEZEL SUB ASSY(CPT) AA0150XG216 LCD (TFT) CLAA150XG08 V2(15",1024*768,XGA DN002514005 SPEAK ASSY L70L FG-2514H8 1.5WX2...
  • Page 42 Diamond View DV155 & DV155B ________________________________________________________________________________________________________ 15. Auto White Balance Procedure Connect signal to monitor. The display signal need contain real black and full white. Press "Auto" button (don't release) when power ON (LED display Amber). Press OSD select FACTORY 2, Auto Color, RUN (For AD converter calibration on R, G and B gain, offset).

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