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ImageQuest L80A Technical & Service Manual

Multiscanning color monitor
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L80A
Multiscanning Color Monitor
TECHNICAL SERVICE MANUAL

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Summary of Contents for ImageQuest L80A

  • Page 1 L80A Multiscanning Color Monitor TECHNICAL SERVICE MANUAL...

  • Page 2: Safety Precaution

    L80A Technical Service Manual Safety Precaution WARNING Service should not be attempted by anyone unfamiliar with the necessary precautions on this monitor. The followings are the necessary precautions to be observed before servicing. 1. When managing this monitor , cover with shield plate to avoid to scrach on LCD surface.

  • Page 3: Control Description

    Control Description Front View Support Modes V Frequency H Frequency Pixe Resolution (Hz) (kHz) Polarity Polarity Clock 640 x 400 70.0 31.32 25.056 720 x 400 70.1 31.5 28.322 720 x 400 85.0 37.9 35.500 640 x 480 59.9 31.5 25.175 640 x 480 37.5...

  • Page 4: Video Input Signal

    L80A Technical Service Manual Video Input Signal Recommended signal are shown below •Video Signal Video level : 0 to 700mV Polarity : positive Video Input : RGB separated Analog level Sync input : H-Sync(TTL level) V-Sync (TTL level) •Waveform Video input(R.G.B) 700mV •...

  • Page 5: Video Input Terminal

    Video Input Terminal 1. Analog A 15 Pin D-sub connector is used as the input signal connector Pin and input signals are shown in the table below. Pin Description SEPARATE SYNC/ SIGNAL DDC 1/2B PIN NO. GREEN BLUE RETURN RED GROUND GREEN GROUND BLUE GROUND LOGIC GROUND...
  • Page 6 L80A Technical Service Manual 2. Digital 24 Pin DVI-D Interface connector is used as the input signal connector Pin and input signal are shown in the table below. Pin Description SEPARATE SYNC/ SEPARATE SYNC/ PIN NO. DDC 1/2B PIN NO.

  • Page 7: Connecting With External Equipment

    Connecting with External Equipment Cautions Be sure to turn off the power of your computer before connecting the monitor. 15 pin D-sub cable (Analog RGB) DVI-D cable (Digital RGB) --6--...

  • Page 8: Theory Of Operation

    L80A Technical Service Manual Theory of Operation 1. DC/AC INVERTER Input voltage : DC 12V Input current : 2.0A(Max) Output current : 6m Arms(TYP) Frequency(switching) : 50KHz Output power : 19.2W(TYP) On/off control voltage : 5.0V 2. DPMS MODE Reference to DPMS files...

  • Page 9: Clock Phase

    On Screen Controls & LED Indicator The menu for screen setting adjustment is located in the OSD and can be viewed in one of five languages OSD feature andmain funcrions are as follows: The OSD adjustments available to you are listed below. BRIGHTNESS Adjust the brightness of the screen.

  • Page 10: Color Control

    L80A Technical Service Manual COLOR CONTROL Color temperature affects the tint of the image. With lower color temperatures the image turns reddish and with higher temperatures bluish. There are three color settings available: Mode 1(a cool white), Mode 2(a warm white) or USER. With the USER setting you can set individual values for red, green and blue.

  • Page 11: Source Select

    SOURCE SELECT This menu is used to choose the desired input signal source. There are four signal sources available : • Analog RGB : 15 pin D-sub, Analog signal • Digital RGB : 24 pin DVI-D, Digital signal • S-Video : MINI DIN, Separate video signal •...
  • Page 12 L80A Technical Service Manual Getting Fine Picture Step 1. At first Display, a full screen, such as, Window's background or "H" character should be achieved by using Editor (ex: Notepad. exe) Step 2. Adjust the screen to the center of the Display(LCD), by using the top and bottom display controls.

  • Page 13: Specification

    Specification SIZE 18.1” Viewable diagonal Dot Pitch 0.2805mm LCD Module Contrast Ratio 300 : 1(TYP) Brightness 200 cd/m (TYP) Response Time 27ms (TYP.) Signal Analog R.G.B Signal / TMDS Signal Input Connector 15 pin D-SUB Connector/Digital 24Pin DVI H-Freq 31.0 kHz~80 kHz SYNC V-Freq 56Hz ~ 87 Hz...

  • Page 14: Critical Parts Specification

    L80A Technical Service Manual Critical Parts Specification 1. LCD Module HT18E22-200 is a A-Si TFT active matrix color liquid crystal comprising amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. a built-in backlight display area contains 1280X1024 pixels and can display full color (16.7M colors)
  • Page 15 AD9884A MC68HC705BD7B FEATURES FUNCTIONAL BLOCK DIAGRAM 140 MSPS Maximum Conversion Rate 500 MHz Analog Bandwidth AD9884A 0.5 V to 1.0 V Analog Input Range 400 ps p-p PLL Clock Jitter OUTA Power-Down Mode CLAMP 3.3 V Power Supply OUTB 2.5 V to 3.3 V Three-State CMOS Outputs OUTA Demultiplexed Output Ports CLAMP...

  • Page 16: Pin Configuration

    L80A Technical Service Manual PIN CONFIGURATION PIN 1 IDENTIFIER SOGIN AD9884A TOP VIEW PINS DOWN (Not to Scale) CKINV CLAMP NC = NO CONNECT --15--...
  • Page 17 KS0127B MC68HC705BD7B MULTISTANDARD VIDEO DECODER/SCALER The KS0127B converts analog NTSC, PAL or SECAM 100 PQFP video in composite, S-video, or component format to digitized component video. Output data can be selected for CCIR 601 or square pixel sample rates in either YCbCr or RGB formats.
  • Page 18 L80A Technical Service Manual PIN ASSIGNMENT - 100 PQFP 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 60 59 58 57 56 55 54 53 52 51 VDDA VDD3...

  • Page 19: General Description

    MF28F400B1 MC68HC705BD7B FEATURES PIN ASSIGNMENT (Top View) • Seven erase blocks: 44-Pin SOP 16KB/8K-word boot block (protected) Two 8KB/4K-word parameter blocks (FA-1) Four main memory blocks • SmartVoltage Technology (SVT): 3.3V ±0.3V or 5V ±10% V 5V ±10% or 12V ±5% V •...
  • Page 20 L80A Technical Service Manual 48-PIN PLASTIC TSOP I (12mm x 20mm) FB-2 .795 (20.19) .780 (19.81) .727 (18.47) .0197 (0.50) .010 (0.25) .721 (18.31) PIN #1 INDEX .475 (12.07) .469 (11.91) .010 (0.25) .006 (0.15) .010 (0.25) .004 (0.10) .007 (0.18) SEE DETAIL A .005 (0.12)
  • Page 21 PW164 MC68HC705BD7B This specification provides detailed product information for the PW164-XX ImageProcessor. Table 1 contains a device list for the PW164-XX Family. Figure 1 depicts the PW164 Block Functional Diagram. Typical applications include: ⇒ LCD Monitors ⇒ Plasma Displays ⇒ Projection Displays Table 1.
  • Page 22 L80A Technical Service Manual 3.0 Package Outline 0.950 24.13 1.063 0.025 0.050 27.0 0.635 1.270 Still Air 1 m/s Θ 23.9 18.3 Θ 256-pin TBGA Package --21--...
  • Page 23 THC63LVDM83A THC63LVDR84A MC68HC705BD7B THC63LVDF83A General Description Features The THC63LVDM83A/F83A transmitter ¡ 28:4 Data channel compression at up to converts 28 bits of CMOS/TTL data into 245 Megabytes per sec throughput ¡ LVDS(Low Voltage Differential Signaling) data Wide Frequency Range: 20 - 70 MHz stream.
  • Page 24 L80A Technical Service Manual PIN OUT RECEIVER DEVICE TRANSMITTER DEVICE THC63LVDM83A/THC63LVDF83A THC63LVDR84A/THC63LVDF84A LVDS GND LVDS GND LVDS VCC LVDS VCC LVDS GND LVDS GND TCLK- RCLK- R/F(N/C)* TCLK+ RCLK+ LVDS GND LVDS GND PLL GND PLL GND PLL VCC PLL VCC...
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  • Page 56 ABS 94-HB 6201290200 COVER FRONT ABS 94-HB 6242027802 SHEET PROTECT PET T=0.1 PART NO PART NAME DESCRIPTION QT'Y REMARK DRAWN PLANNED CHECKED APPROVED ANGLE TITLE SCALE EXPLODED VIEW L80A DWG NO. SHEET SIZE B42100***01A TAMP 031-2 FILE NAME : EXPLODED VIEW...

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