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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise" und „Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
1.
Introduction ..................................................................................................................................2
2.
Electrical Requirements ...............................................................................................................3
3.
Vl-901 Display Control Board ...................................................................................................18
4.
VK901 Control Panel Board ......................................................................................................23
5.
Inverter Board.............................................................................................................................24
6.
DC/DC Power and Audio Ckt Vm-902 .....................................................................................26
7.
Troubleshooting..........................................................................................................................28
8.
Mechanical Requirements ..........................................................................................................33
9.
Power Line Transient Test (Iec 61000-4-4 Fast Transients/Burst) ............................................39
10. Power Line Surge Test (IEC 61000-4-5 Surge) .........................................................................42
11. Enviroment Requirement ...........................................................................................................43
12. Regulation Compliance ..............................................................................................................44
13. Quality and Reliability ...............................................................................................................46
Appendix A: PCBA Assembly................................................................................................... 47
Appendix B: DISPLAY UNIT ASSEMBLY............................................................................. 55
Parts Lists.................................................................................................................................... 60
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
TFT LCD MONITOR
July 2002
No. 0533
CML190SXW
CML190SXWB
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
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Table of Contents
Related Manuals for Hitachi CML190SXW
Summary of Contents for Hitachi CML190SXW
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Page 1: Table Of Contents
No. 0533 CML190SXW CML190SXWB SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual. Data contained within this Service manual is subject to alteration for improvement. -
Page 2: Introduction
1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 19” MICRO-PROCESSOR based Multi- mode supported high resolution color LCD monitor, This monitor can be directly connected to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of optional special display card. -
Page 3: Electrical Requirements
2. ELECTRICAL REQUIREMENTS 2.1 Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light: 225 lux Viewing distance : 50 cm in front of LCD panel Warrn up time All specifications: 30 minutes Fully functional: 5 seconds Measuring Equipment:... - Page 4 XGA 1024 X 768 (60/70/75 Hz) SXGA 1280 X 1024 (60/70/75 Hz) standard resolution Pixel pitch : 0.098x3mm(H) x 0.294mm(V) Display Dot : 1280 x (RGB) x 1024 Pixel Clock : 25.2 – 135.0MHz θ Contrast ratio: 500 : 1 (typical) = 0˚...
- Page 5 • Lamp Voltage 700 Vrms typ. • Lamp Current 7mA rms.( typ). 4 Lamp • Weight 3200g . • Optical Specifications The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or equivalent state with the methods shown in Note(4).
- Page 6 Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. Luminance with all pixels white (Gmax) Luminance with all pixels black (Gmin) Note 3) Definition of Response time: Sum of T...
- Page 7 Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min, the measurement should be executed .Measurement should be executed n a stable, windless ,and dark room.30 min after lighting the back-light. This should be measured in the center of screen.
- Page 8 Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) Bmin =100∗ ∗ ∗ ∗ Bmax Bmax: Maximum brightness Bmin: Minimum brightness...
- Page 9 Note 8) Definition of Crosstalk (Refer to the VESA STD) The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin = x100 % Lmin Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two.
- Page 10 2.4 Input Signals 2.4.1 Video input • Type Analog R, G, B., Digital TMDS • Input Impedance 75 ohm +/- 2% • Polarity Positive • Amplitude 0 - 0.7 +/- 0.05 Vp • Display Color same as LCD panel 2.4.2 Sync input •...
- Page 11 Supported Timing FH(KHZ) SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL TIMING FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH PORCH PORCH FOREQ.(MHZ) (DOT/LINE) (DOT/LINE) (DOT/LINE) 640x350 31.469 25.175 VGA-350 70.087 – 640x400 24.83 – 21.05 NEC PC9801 56.42 – 640x400 31.469 – 25.175 VGA-GRAPH 70.087 640x400...
- Page 12 2.4.4 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display “Out of Range” warning menu at this mode. 2.4.5 Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector PIN NO.
- Page 13 Digital Video input Connector: DVI-D (T.B.D) Table 4-3-3. Pin assignment for DVI-D (24pin) connector Pin – Assignment of DVI –D connector : TX2- TX1- 17 TX0- TX2+ TX1+ 18 TX0+ Shield (TX2 / TX4) Shield (TX1 / TX3) 19 Shield (TX0 / TX5) 20 NC 21 NC DDC-Serial Clock...
- Page 14 2.5 CONTROLS 2.5.1 Control panel (monitor front panel) 1. Power LED, will be green when monitor is on; be amber when in power saving mode. 2. Adjust decrease. 3. Adjust increase. 4. Function select counter-clockwise. 5. Function select clockwise. 6. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) Note: When OSD Menu is off, press button 2 and 3 at the same time can activate “Auto Adjustment”...
- Page 15 Description: • Brightness: Brightness adjustment, the range from 0 to 100. • Contrast: Contrast adjustment, the range from 0 to 100. • H. Position: Horizontal position adjustment. • V. Position: Vertical position adjustment. • Phase: Focus adjustment, the range from 0 to 31,32 steps. •...
- Page 16 Other features: Intellectual-Auto LCM999 can start the Auto-Adjustment automatically when input a new display mode at first time. After the adjustment, LCM999 will remember this mode and switch to optimized condition automatically for this mode whenever encounter this mode again. Total 21 recent used modes are recorded into LCM999. VESA DPMS Functionality When signaled by the host CPU, LCM999 show a black screen about 3 seconds.
- Page 17 2.7 POWER SUPPLY 2.7.1 input Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply. 2.7.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 Hz over the specified input voltage range. 2.7.3 Quick specification review •...
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Page 18: Vl-901 Display Control Board
3. VL-901 DISPLAY CONTROL BOARD 3.1 Description The VL-901 display control board is design to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor. 3.2 Features •... - Page 19 3.3 BLOCK DIAGRAM...
- Page 20 3.4 Connector Locations 3.5 Connector Type Location Type Maker Number of pins 74320-4004 MOLEX 1211-15 E&T 6905-40 E&T 4300-10 E&T 4500-07 E&T 3.6 Connector pin assignment 3.6.1 CN2 Pin NO. Signal Comment R-Video Red Video Input. G-Video Green Video Input. B-Video Blue Video Input.
- Page 21 3.6.2 CN4 Terminal No. Symbol Function 36,37,38 5V POWER SUPPLY TXE0- LVDS EVEN OUTPUT DATA PAIRS TXE0+ LVDS EVEN OUTPUT DATA PAIRS TXE1- LVDS EVEN OUTPUT DATA PAIRS TXE1+ LVDS EVEN OUTPUT DATA PAIRS TXE2- LVDS EVEN OUTPUT DATA PAIRS TXE2+ LVDS EVEN OUTPUT DATA PAIRS TXECLK-...
- Page 22 3.6.4 J1 Pin NO. Signal Comment LED-Y Power saving mode LED-G Monitor is ON KEY-POWER Power ON/OFF key KEY-DOWN Function select counter-clockwise key KEY-R Adjust up key KEY-L Adjust down key KEY-UP Function select counter-clockwise key 3.6.5 CN1 Digital Video input Connector: DVI-D Pin-Assignment of DVI-D(24 pin) connector 1 TX2- TX1-...
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Page 23: Vk901 Control Panel Board
4. VK901 Control Panel Board 4.1.1 Description The VK-901 is designed to offer a user interfaced control panel which passes and receives signals to and from VL-901 display control board. 4.1.2 Connector and Switch Locations 4.1.3 Connector type Location Type Maker Number of pins 4500-10... -
Page 24: Inverter Board
5. INVERTER BOARD 5.1 Description The Inverter board is designed for lighting up the back-lights of LCD module. 5.2 Electrical characteristics 5.2.1 FOR Fujitsu PANEL FLC48SXC8V MIN. TYP. MAX. COMMENT INPUT VOLTAGE 11.4V 12.0V 12.6V 12V±5% Vin=12V, INPUT CURRENT -------- Vbrite=3.3V Normal BACKLIGHT --------... - Page 25 5.3 Connector locations 5.3.1 Connector type CM999-E04 Location Type Maker Number of pins JN2, JN3, SM02 (8.0)B-BHS JN4, JN5 85205-1200 E&T 5.3.2 Connector pin assignment 5.3.2.1 J2,J3,J4,J5 Pin NO. Signal Comment High voltage for lamp Low voltage (common) 5.3.2.2 JN1 Pin NO.
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Page 26: Dc/Dc Power And Audio Ckt Vm-902
6. DC/DC POWER and Audio CKT VM-902 6.1 Input: +12V/5A from AC adapter 6.2 Output: ITEM Output Voltage Max Load. Min Load Tolerance Ripple & Noise(max) 2.1A 0.1A ±5 % 200mVpp 6.3 Efficiency: 80 % min at Maximum Load. 6.4 Connector Locations 6.4.1 Connector type for VM-902 Location Type... - Page 27 6.4.3.1 J802 FOR I/F CKT Pin No Signal Comment Pin 1,2,3,4 +12V From adapter +12V power 5,6,10,11,12 Pin 8 Supply for I/F CKT ON/OFF Control ON>3.0V OFF <2.0V Pin 7 ON/OFF Lamp Current Control (0V to 3.3V) , Pin 9 BRIGHT 3.3V for max brightness 6.4.3.2 J803 FOR M/B CKT...
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Page 28: Troubleshooting
7. TROUBLESHOOTING 7.1 Main Procedure... - Page 29 7.1.1 Power Circuit Troubleshooting...
- Page 30 7.1.2 Backlights Troubleshooting...
- Page 31 7.1.3 Performance Troubleshooting...
- Page 32 7.1.4 Function Troubleshooting...
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Page 33: Mechanical Requirements
8. MECHANICAL REQUIREMENTS 8.1 Vibration and Shock All testing shall be done in each of three mutually perpendicular axes, referenced to the position of the system as it is in front of the user (i.e., front-to back, side-to-side, and top-to- bottom). - Page 34 Back Side Left Side Right Side 8.3 Dimension Size and Weight Dimension size 433 (W) x 447 (H) x 235 (D) Net Weight 6.5Kg Gross Weight 8.5Kg...
- Page 35 8.4 Gap Spec. 8.4.1 The step between front bezel and back cover shall be within specification. Back Cover & Bezel Gap 0.8 mm ≤ A ≤ 1.2 mm Back Cover & Bezel Alignment 0 mm ≤ D ≤ 0.8 mm Back Cover &...
- Page 36 Back Cover & Cable Cover Gap 0.8 mm ≤ B ≤ 1.2 mm...
- Page 37 Base Cover & Neck Cover Gap 0.8 mm ≤ C ≤ 1.2 mm 8.4.2 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not be larger than 1.0mm.
- Page 38 The distance of the LCD display unit from left side to right should not be larger than E - F <=4.0mm. Tilt Base Rotation Tilt up 25 ± 1°/ down 5 ±1° 8.5 Swivel Base Rotation Swivel Right 45 ±1° / Left 45 ±1° 8.6 Plastic Material Front Bezel ABS 94HB, 94V-0 Back Cover ABS 94HB, 94V-0...
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Page 39: Power Line Transient Test (Iec 61000-4-4 Fast Transients/Burst)
8.7 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.5 mm CM999 9. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) TEST CONDITIONS & PROCEDURE: (Follow IEC 61000-4-4) Test Condition : The condition is based on operating with 50Ω load. - Page 40 9.1 Peak Voltage: 2 KV (applies the Level 3 typical Industrial Environment” of IEC 61000-4-4) 9.2 Polarity : + / - 9.3 Repetition Frequency of the impulse : 5 KHz. ± ± ± ± 9.4 Rise-Time : 5ns ± ± ± ± 9.5 Impulse Duration: 50 nS 9.6 Relation to Power Supply: Asynchronous ±...
- Page 41 WAVESHAPE...
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Page 42: Power Line Surge Test (Iec 61000-4-5 Surge)
10. Power Line Surge Test (IEC 61000-4-5 Surge) 10.1 Climatic Condition The climatic conditions shall be within the following ranges: ° ° ° ° ° ° ° ° 10.1.1 Ambient Temperature: 15 C to 35 10.1.2 Relative Humidity: 10% to 75% 10.1.3 Atmospheric Pressure 86kPa(860 mbar)to 106kPa (1060mbar) Note: The temperature and relative humidity should be recorded in the test report. -
Page 43: Enviroment Requirement
11. ENVIRONMENTAL REQUIREMENTS 11.1 Operating Temperature 5°C ~ 40°C Relative Humidity 20% to 80% Altitude Sea level to 8000ft 11.2 Storage or Shipment Temperature -20°C ~ +60°C Relative Humidity 5% to 85% Altitude Sea level to 40,000ft 11.2.1 TEST PROCEDURE: •... -
Page 44: Regulation Compliance
12. REGULATION COMPLIANCE 12.1 This product comply to the most current revisions of following regulations: UL/CUL Standard for Safety of Information Technology Equipment including Electrical Business Equipment {UL 1950/ CSA C22.2 NO950} EN 60950/CB Scheme Safety of Information Technology Equipment including Electrical Business Equipment MPR 1990:8 Test methods for visual display units. - Page 45 12.2 Electrostatics Discharge (ESD) E.S.D Test This test follow the IEC 61000-4-2 Discharge Voltage Level : Criteria Contact Discharge (KV) Air Discharge(KV) Class C ±4 ±4 Class B ±6 ±8 Class A ±8 ±15 Class A : Temporary degradation or loss of function or performance which requires operator Intervention or system reset.
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Page 46: Quality And Reliability
Ambient temperature : 15°C to 35°C Relative humidity : 30% to 60% 13. QUALITY AND RELIABILITY 13.1 QUALITY ASSURANCE Unless otherwise specified in this specification or the applicable purchase order, the supplier shall be responsible for maintaining a statistical process program or performing inspections that are sufficient to assure that the parts supplied meet the requirements specified herein. -
Page 47: Appendix A: Pcba Assembly
Appendix A: PCBA Assembly... - Page 48 J802 BLKON +12V U801 SI8051S/DIP/TO-220 L802 56UH/DIP ZD801 E&T_98115-1203/DIP/2.0mm 6.2B C804 E&T_4500-12/DIP/2.0mm 104 50V/CC5D D803 D804 C810 C805 SB140 SB140 1000U/10V 104 50V/CC5D BRIGHTNESS J803 J803 BLK_on_off BRIGHTNESS E&T_98115-1003/DIP/2.0mm <> Bri_ADJ E&T_4500-07/DIP/2.0mm(CM999) E&T_4500-10/DIP/2.0mm (CM988) HITACHI Audio and D/D No. 0533...
- Page 49 KEY LEFT KEY LEFT GPIO1/PWM1 Power PCDETECTD PCDETECTD KEY ONOFF KEY ONOFF PBIAS LCDON PPWR PPWR BRI_ADJ BLKON PBIAS GPIO0/PWM0 BRI_ADJ 7. Power 3. Input Connectors 4. gm5115 5. Display HITACHI No. 0533 Ctrl/B VL-901 - VGA Input - 1...
- Page 50 PCDETECTA 3.3V_DVDD Pins 6/7/8 are R/G/B return lines resp. C120 SN74LVC14APWR SN74LVC14APWR 0.1uF Vsync SHT-4 Hsync SN74LVC14APWR SN74LVC14APWR 3.3V_DVDD SHT-4 5.6V 220pF 5.6V 220pF NC/ZD1 DALC208SC6 VGA_BLU VGA_GRN PCDETECTA VGA_RED HITACHI No. 0533 Ctrl/B VL-901 - VGA Input - 2...
- Page 51 RMDATA1 FLASH_OEn ROM_DATA1 RMDATA0 ROM_DATA0 Reserved ROM_OEn ROM_OEn Reserved 32-Pin PLCC Socket gm5115 Family PQFP208 0.1uF SW PUSHBUTTON NC/CN3 E&T 96113-0512 3.3V_DVDD +3.3V Reset /RESET Reset Circuit MCP809-300 BAV99L SIZE HITACHI No. 0533 Ctrl/B VL-901 - VGA Input - 3...
- Page 52 47uF 18pF 470pF 470pF KEY RIGHT SI9435_SO8 KEY LEFT Keyboard Connector KEY UP LCDON LED_G SHT-4 PPWR SHT-4 Molex_53261-1090 2N3906 / NC 47K / 4.7K 2SC2411K NC/47uF 75 / 100 HITACHI No. 0533 Ctrl/B VL-901 - VGA Input - 4...
- Page 53 PLLVCC DBBLU5 TXIN20 DBBLU6 TXIN21 PLLGND DBBLU7 TXIN22 PLLGND 0.1uF 0.01uF LVDS_GND TXIN23 Connect LVDS grounds to GND TXIN24 at one single point only. TXIN25 LVDS_GND TXIN26 DISP_CLK TXCLKIN LVDS_3.3V HITACHI No. 0533 Ctrl/B VL-901 - VGA Input - 5...
- Page 54 APL1117-25uC BLM21P300S BLM21P300S 100uF 0.01uF 0.1u F 0.1uF 100uF 100uF 100uF BLKON PBIAS Vout BRI_ADJ SHT-4 APL1117 C102 SOT-223 47uF LVDS_3.3V APL1117-3.3V ADJ/GND C100 Vout 0.1uF 100uF 0.1uF 100uF APL1085 -33CE SOT-252 ADJ/GND HITACHI No. 0533 Ctrl/B VL-901 - Power...
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Page 55: Appendix B: Display Unit Assembly
Appendix B: DISPLAY UNIT ASSEMBLY... -
Page 60: Parts Lists
THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA... - Page 61 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: csgswe@hitachi -eu.com Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi -eu.com HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...