Sharp LL-T2020 Service Manual

q

SERVICE MANUAL

MODEL

CONTENTS

CHAPTER 1. OUTLINE OF THE PRODUCT,

NOMENCLATURE AND FUNCTION. . . . . . . . . . . . . . . . . . 1 - 1

CODE : 00Z

LLT2020SME

LCD MONITOR

LL-T2020

CHAPTER 2. CONNECTION, ADJUSTMENT,

OPERATION, AND FUNCTIONS. . . . . . . . . . . . . . . . . . . . .2 - 1

CHAPTER 3. DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . .3 - 1

CHAPTER 4. TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1

CHAPTER 5. WAVE FORM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1

CHAPTER 6. BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1

CHAPTER 7. CIRCUIT DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 1

CHAPTER 8. PARTS LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 - 1

Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.

SHARP CORPORATION

This document has been published to be used
for after sales servic e only.
The contents are subject to change without notice.

CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION

1. SPECIFICATIONS

■■■■ Product specifications

• LCD display
51 cm measured diagonally

Advanced Super-V and Anti Glare Low Reflection
TFT LCD module

• Resolution (max.)
UXGA 1600 x 1200 pixels

• Displayable colors (max.)
Approx. 16.77 million colors (8 bit)

• Brightness (max.)
220cd/m

• Dot pitch

0.255 (H) x 0.255 (V) mm

• Contrast ratio
350 : 1

• Angle of visibility
Left-right 170° ; Up-down 170° (contrast ratio

• Screen display size
Horizontal 408 mm x Vertical 306 mm

• Video signal
Analog: Analog RGB (0.7Vp-p) [75Ω]

Digital: DVI standard based on 1.0

2

u

10)

• Screen swivel
Approx. 90° from left through right

• Power supply
AC100 - 240V, 50/60Hz

• Temperature of operating environment
5 - 35°C

• Power consumption
53W (Not using USB hub)

(60W maximum, 3W when in power-saving mode)

• Dimensions (W x D x H) (Units: mm)
With long width screen: 450 x 228 x 438 - 498

With long height screen: 348 x 228 x 490 - 550

• Weight
Approx. 10 kg

Display area only, approx. 6.5kg

■■■■ Dimensions (Units: mm)

450

348

498

• Sync signal
Separate Sync (TTL level: +/-), Sync on Green, Composite Sync

(TTL level: +/-)

• Expansion compensation
Digital scaling

(Enlargement VGA/SVGA/XGA/SXGA etc. to full screen size.)

• Plug & Play
VESA DDC2B compatible

• Power management
VESA: based on DPMS

DVI: based on DMPM

• Input signal terminal
29 pin DVI-I x 2

• USB hub function
1 upstream port, 2 downstream ports

(selfpowered hub based on USB standard Rev 1.1)

• Height adjustment
Adjustment range: Approx. 60 mm

• Screen rotation
Clockwise 0 - 90°

• Screen tilt
Upward approx. 0 - 30° ; downward approx. 0 - 5°

438

228

550

310
348

450

490

• Analog signal cable: Approx. 2.0m

• Digital signal cable: Approx. 2.0m

• USB cable: Approx. 2.0m

• Digital signal cable, NL-C04J (purchased separately): Approx. 2.0m

• Analog signal cable, NL-C02E (purchased separately): Approx. 2.0m

• 2-input cable, NL-C03J (purchased separately): Approx. 0.25m

LL-T2020 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION

1 – 1

■■■■ Relevant signal timings (analog)

■■■■ Relevant signal timings (digital)

Display mode Hsync Vsync Dot frequency

VESA 640 x 480 31.5kHz 60Hz 25.175MHz

37.9kHz 72Hz 31.5MHz

37.5kHz 75Hz 31.5MHz

800 x 600 35.1kHz 56Hz 36.0MHz

37.9kHz 60Hz 40.0MHz

48.1kHz 72Hz 50.0MHz

46.9kHz 75Hz 49.5MHz

1024 x 768 48.4kHz 60Hz 65.0MHz

56.5kHz 70Hz 75.0MHz

60.0kHz 75Hz 78.75MHz
1152 x 864 67.5kHz 75Hz 108.0MHz
1280 x 960 60.0kHz 60Hz 108.0MHz

1280 x 1024 64.0kHz 60Hz 108.0MHz

80.0kHz 75Hz 135.0MHz

1600 x 1200 75.0kHz 60Hz 162.0MHz
US text 720 x 400 31.5kHz 70Hz 28.3MHz
Power

Macintosh
series

640 x 480 35.0kHz 66.7Hz 30.2MHz

832 x 624 49.7kHz 74.6Hz 57.3MHz
1024 x 768 60.2kHz 75Hz 80.0MHz
1152 x 870 68.7kHz 75Hz 100.0MHz

1280 x 1024 64.0kHz 60Hz 108.0MHz

80.0kHz 75Hz 135.0MHz

1600 x 1200 75.0kHz 60Hz 162.0MHz

Sun Ultra
series

1024 x 768 48.3kHz 60Hz 64.13MHz

53.6kHz 66Hz 70.4MHz

56.6kHz 70Hz 74.25MHz

1152 x 900 61.8kHz 66Hz 94.88MHz

71.8kHz 76.2Hz 108.23MHz

1280 x 1024 71.7kHz 67.2Hz 117.01MHz

81.1kHz 76Hz 134.99MHz

• Recommended resolution is 1600 x 1200.

• All are compliant only with non-interlaced.

• Frequen cies for Power M acintosh and the Sun Ultra series ar e refer­ence values. To connect, another adapter (commercially available)
may be required.

• If the monitor is receiving timing signals that are not compatible, [OUT
OF TIMING] will appear.
Follow your computer's instruction manual to set the timing so that it
is compatible with the monitor.

• If the monitor is not receiving any signal (synch signal), [NO SIGNAL]
will appear.

Display mode

Hsync Vsync Dot frequency

VESA 640 x 480 31.5kHz 60Hz 25.175MHz

37.9kHz 72Hz 31.5MHz

37.5kHz 75Hz 31.5MHz

800 x 600 37.9kHz 60Hz 40.0MHz

48.1kHz 72Hz 50.0MHz

46.9kHz 75Hz 49.5MHz

1024 x 768 48.4kHz 60Hz 65.0MHz

56.5kHz 70Hz 75.0MHz

60.0kHz 75Hz 78.75MHz
1152 x 864 67.5kHz 75Hz 108.0MHz
1280 x 960 60.0kHz 60Hz 108.0MHz

1280 x 1024 64.0kHz 60Hz 108.0MHz
1600 x 1200 75.0kHz 60Hz 162.0MHz

US text 720 x 400 31.5kHz 70Hz 28.3MHz

• Recommended resolution is 1600 x 1200.

• All are compliant only with non-interlaced.

• A computer with an output terminal conforming to DVI (DVI-D24 pin
or DVI-I29 pin) and with UXGA output capability can be connected
here.
(Depending on the type of computer to be connected, the display may
not work correctly.)

• If the monitor is receiving timing signals that are not compatible, [OUT
OF TIMING] will appear.
Follow your computer's instruction manual to set the timing so that it
is compatible with the monitor.

• If the monitor is not receiving any signal (synch signal), [NO SIGNAL]
will appear.

■■■■ The DVI-I input connector pin

(DVI-I connector with 29 pins)

C2

C1

1 7
9

17 23

No.

Function
1 TMDS data 2- 16 Hot plug detection
2 TMDS data 2+ 17 TMDS data 0­3 TMDS data 2/4 shield 18 TMDS data 0+
4 N.C. 19 TMDS data 0/5 shield
5N.C. 20N.C.
6 DDC clock 21 N.C.
7 DDC data 22 TMDS clock shield
8 Analog vertically

synchronised signal

9 TMDS data 1- 24 TMDS clock -

10 TMDS data 1+ C1 Analogue red image signal
11 TMDS data 1/3 shield C2 Analogue green image signal
12 N.C. C3 Analogue blue image signal
13 N.C. C4 Analogue horizontally

14 +5V C5 Analogue GND
15 GND

5432 8

6

15

13121110 16

14

21201918 24

22

C4

C3

No.

23 TMDS clock +

synchronised signal

C5

Function

LL-T2020 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION

1 – 2

■■■■ Power management

The monitor is based on the VESA DPMS and the DVI DMPM stan­dards.
To activate the monitor's Power Management function, both the video
card and the computer must conform to the VESA DPMS standard and
the DVI DMPM standard.

DPMS: Display Power Management Signalling

DPMS mode Screen

ON Display on 53W
STANDBY
SUSPEND Yes No
OFF No No

DMPM: Digital Monitor Power Management

DMPM mode Screen

ON Display on 53W
OFF Display off 3W

Display off 3W

Power

consumption

*

Power

consumption

*

H-sync V-sync

Yes Yes

No Yes

*

Not using USB hub

*

Not using USB hub

■■■■ DDC (Plug & Play)

This monitor supports the VESA DDC (Display Data Channel) standard.
DDC is a signal standard for carrying out Plug & Play functions on the
monitor or PC. It transfers information such as degree of resolution
between the monitor and PC. You can use this function if your PC is
DDC compliant and if it is set so that it can detect the Plug & Play mon­itor.
There are many varieties of DDC due to the differences between sys­tems. This monitor works with DDC2B.

2. PRODUCT DESCRIPTION

123 4 56 7 89

1. INPUT button To switch between the signal's input termi-

2. MENU button This button is used to pop-up, select and

c

button This button is used to select menu options

3.

ed

buttons When the OSD Menu is displayed:

4.

5. Power button

6. Power LED T hi s L E D i s l i t g r e e n w h e n i n u s e a nd

7. DVI-I input terminal The c om pute r's dig ital R GB o u tput te rmin a l

8. USB port (upstream: 1 port)

9. USB port (downstream: 2 ports)

10. Security lock anchor By connecting a se curity lock (commer cially

11.Power terminal

12.Main power switch

13. Ventilation openings Note: Never block the ventilation openings

nals.

close the OSD (On Scree Display) Menu.

when the OSD Menu is displayed.

These buttons are used to increase or
decrease the value of a selected option.

When the OSD Menu is not displayed:

These buttons are used to adjust back­light brightness.

orange when in power-saving mode.

or analogue RGB output terminal can be
connected here.

For a digital signal input: It can be con­nected to a computer with a DVI-com patible
output terminal (DVI-D24 pin or DVI-I29 pin)
and which has UXGA output ability.
Depending on the computer to be con­nected, correct display may or may not be
possible.

available) to the security lock an chor, the
monitor is fixed so that it cannot be trans­ported.

The security slot wor ks in conjunc tion with
Kensington Micro Saver Security Systems.

as this may lead to overheating inside
the monitor and result in malfunction.

10 11

13

12

LL-T2020 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION

1 – 3

■■■■ Height adjustment, angle adjustment, rotation (long height/width)

Caution:

• Pressure from hands on the LCD panel could cause damage.

• Be careful not to allow your fingers to be pinched.

1) Height adjustment

Adjust to an easy to view height.

Approx. 60mm

3) Rotation (long height/width)

The display can be rotated for a long height or width to suit the dis­played content.

• Before rotating, move the display to its uppermost position. If the dis­play is rotated while it is set low, it will contact the stand and could
lead to damage.

• The display can only be rotated through a range of 90°. Applying
excessive force may cause malfunction.

• Do not apply excessive force when the cable is connected.

To set to long height

Gently turn in the clockwise direction (to 90°).

2) Angle adjustment

Adjust to an easy to view angle.

approx. 5

approx. 30

approx. 45

approx. 45

To set to long width

Gently turn in the counterclockwise direction (to 90°).

Note: The orientation of the display can be changed using Pivot Soft-

ware.

LL-T2020 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION

1 – 4

CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

1. CONNECTING THE MONITOR AND TURNING THE MONITOR ON AND OFF

Caution:

• When connecting, ensure that both the monitor and computer are
switched off.

• Be careful not to overly bend the cable or add extension cords as
this could lead to a malfunction.

Cable storage

If necessary, excess cable can be housed in the stand.

1. Remove the cover.
Gently pull the top of the cover towards yourself.

2. Run cable along the back of the stand.
Pass cable in front of the stand, and then bring it through the back.

3. Refit the cover.
Be careful not to pinch the cable.

• If the cover is hard to refit, do not force it.

Check whether cables are trapped.

Caution: If the display is to be rotated, first house the cable, and then

check while gently turning the display. If it cannot be turned,
rehouse the cable with sufficient slack. (If there is insufficient
cable length, rotation will be impossible. Forcing rotation may
cause cable disconnection.)

1-1. Connecting the monitor to a computer

The accessory signal cable enables connection of two computers.
(One analog and one digital connection.)

• To achieve an analog and digital connection for two computers, a
separately sold signal cable is required.

• The separately sold 2-input cable enables connection of two comput­ers to the DVI-I input terminal.

• When using the 2-input cable, set the connecting input terminal
[INPUT-1] or [INPUT-2] to [2LINES] under the MODE SELECT-1
Menu.

■■■■ Analog connection

Connect the analog signal cable to the analog RGB output terminal of
the computer.

• If the display is to be rotated, first house the cables with the dis­play in the long height position, so there is sufficient length when
the display is turned.

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

Input terminal 1 and 2
You can connect to
either side.

Analog signal cable

• Paying attention to connector direction, firmly insert the signal cable
to terminal, and then tighten the screws at both sides.

2 – 1

Analog RGB output
terminal

If connecting to a D-sub 15 pin 2 row Apple Power Macintosh, attach a
Macintosh conversion adapter (commercially available) to the analog
signal cable.

■■■■ When connecting using a separately sold 2-input cable

The separately sold 2-input cable (NL-C03J) enables connection
between the DVI-I input terminal on the monitor and the two PCs.
(One analog and one digital connection.)

1. Connect the 2-input cable to the DVI-I input terminal of the monitor,
and then connect the analog signal cable (comm ercially available)
and the digital signal cable to the 2-input cable.

Macintosh conversion adapter

Note: If connecting to the Sun Ultra series, a conversion adapter (com-

mercially available) may be required.

■■■■ Digital connection

Connect the digital signal cable to the digital RGB output terminal of the
computer.

• For digital RGB connection, the monitor has an input for connecting
to a computer with a DVI-compatible output connector (DVI-D 24 pin
or DVI-I 29 pin) and UXGA output capability.
(Depending on the type of computer to be connected, the display may
not work correctly.)

• Use the accessory digital signal cable or an NL-C04J cable (sold sep­arately).
If using other commercially available digital signal cables, correctly
display may not be achieved. UXGA resolution m ay not be av ailable
when using the NL-C01E digital signal cable.

Input terminal 1 and 2
You can connect to
either side.

Input terminal 1 and 2
You can connect to
either side.

mini D-sub 15 pin

Analog signal cable

2-input cable
(purchased
separately)

DVI-D24 pin

(commercially available)

Digital signal cable

• For analog connection, use the commercially available analog
signal cable (both ends should be mini D-sub 15 pin).

2. Connect each signal cable to the computers.

Analog RGB output terminal

Analog signal cable

Digital signal cable

Digital RGB output
terminal

• Paying attention to connector direction, firmly inse rt the signal cable
to terminal, and then tighten the screws at both sides.

Set the monitor as follows when establishing a digital connection with a
Power Mac using an ADC-DVI adapter made by Belkin. (Operation has
been checked with the Power Mac G4 M7627J/A)

• Perform settings with the Power Mac power supply off.

1. After connecting the power cord, turn on the monitor's main power.

2. Press the

e

button and d button simultaneously, and while doing

this press the POWER button (i.e. turn the power on).

MAC DIGITAL

INPUT-1
INPUT-2

OFF
OFFONON

3. Set the input terminal to which the Belkin ADC-DVI adapter is con­nected to ON.
Use the

c

button to select [INPUT1] or [INPUT2], and use the

ed

buttons to select [ON] and [OFF].

• Do not set to [ON] if you are not using a Belkin ADC-DVI adapter,

as this may result in incorrect display.

4. Press the power button, and turn off the monitor power.
This completes setting.

Digital RGB output terminal

Digital signal cable

• Paying attention to connector orientation, firmly insert the signal
cable into the PC, and then tighten the screws at both sides.

Note:

• When using the 2-input cable, set the connecting input terminal
[INPUT-1] or [INPUT-2] to [2LINES] under the MODE SELECT-1
Menu.

• The monitor connected to the 2-input cable by analog connection
may not be automatically recognized and setup under Plug & Play.
Perform storage of setup information manually.

1-2. Connecting the monitor to a power source

Power terminal

AC outlet

Power cord

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

2 – 2

1-3. Connecting a USB device

This monitor is equipped with a USB standard (Rev. 1.1) self-powered
hub.

Downstream (2 ports)

Each of these ports enables connection of a USB device with working
current up to 500 mA.

Upstream (1 port)

This enables connection of a USB compatible computer or USB hub.
Note:

• If a USB cable is required, please use the one included.

• Before connecting, ensure that the shape of the USB cable con­nector is correct.

• For information regarding the USB function (such as set-up) please
refer to the operation manual of the computer to be connected.

• Some computers, OS and other devices may not be able to be acti­vated. To ascertain a certain device's USB compatibility, please
contact the manufacturer of the device.

Upstream

3. Turn on the computer.

Turn on the

Press power button

computer power
supply.

ON

When a signal is input from the computer, the power LED lights up
green, and the screen is displayed (After power is turned on, it may
take a little time until the screen is displayed.)

• If the input terminal to which the computer is connected has not
been selected, the screen will not be displayed. If necessary, per­form input terminal switching. (right column)

Notes: (when using an analog signal)

• If us ing the monitor for the first time or after having changed the
system settings during use, perform an automatic screen adjust­ment.

• When connecting to a notebook, if the notebook computer's screen
is set so that it is displaying at the same time, the MS-DOS screen
may not be able to display properly. In this case, change the set­tings so that only the monitor is displaying.

USB cable

Downstream

1-4. Turning the power on

1. Turn on the main power of the monitor.

Main power switch

• When switching the main power switch on and off, always wait for
an interval of at least 5 seconds. Rapid switching may result in
malfunction.

2. Press the monitor's POWER button.
The power LED will light up orange.

1-5. Changing between input terminals

Use the INPUT button to switch between signal input terminals.

When not using a 2-input cable

Select [INPUT-1] Select [INPUT-2]

INPUT-1

< >

The input signal type (ANALOG/DIGITAL) is
displayed within angle brackets < >.

When using a 2-input cable

When selecting the input terminal connected to the 2-input cable, the
input terminal [INPUT-1] or [INPUT-2] is displayed, followed by the sym­bol for analog [-A] or digital [-D].
(Example when connecting the 2-input cable to input terminal 2 [INPUT­2])

INPUT INPUT

Select [INPUT-2]

(analog)

INPUT

Select [INPUT-1]

INPUT-1

< >

INPUT-2

< >

<ANALOG>
or <DIGITAL>

Select [INPUT-2]

(digital)

INPUT-2-A

<ANALOG>

Note: When there is no input signal, [NO SIGNAL] is displayed.

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

2 – 3

INPUT

INPUT-2-D

<DIGITAL>

1-6. Turning the power off

1. Turn the computer off.

2. Press the monitor's POWER button.
The Power LED will disappear.

Turn the computer off Press power button

OFF

If the monitor will not be used for a long time, turn off the main power
switch of the monitor, and remove the power plug from the outlet.

1-7. Instructions for attaching a VESA compliant arm

An arm or stand based on the VESA standard (comme rcially available)
can be attached to the monitor.
Procurement of the arm or stand is at the customer's discretion.

■■■■ Arms or stands able to be used

Attachments must satisfy the following.

• Compatible with the VESA standard.

• Have a gap of 100 mm x 100 mm between the screw holes on the
section to be attached.

• Not be likely to fall off or break off after being attached to the monitor.

■■■■ How to attach the arm or stand

• Be careful not to overly bend the cable or add extension cords as this
could lead to malfunction.

• While following these instructions, please also refer to the installation
instructions in the operation manual included with the arm or stand.

1. Remove the cable.

2. Spread out a soft cloth on a suitable horizontal surface.

3. Being careful not to damage the monitor, gently lay the monitor on it
display-side down.

4. Remove the four screws and then remove the stand from the moni­tor.

Note:

• The stand is specially made for use with this monitor. Once having
removed the stand, never attempt to attach it to another device.

• Once having removed the screws, store them together with the
stand and if the stand is ever re-attached be sure to use the original
screws.
Using different screws could lead to a malfunction.

Caution:

Do not disassemble the stand. Parts may spring out and cause
injury.

5. Attach the arm to the monitor with the four screws.

Caution:

Securely grasp both the display and stand, and gently tip over.
When the monitor is inclined, the stand may suddenly pop out and
cause injury.

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

Note: The screws used to attach the arm should be M4 screws with a

length of 6 mm ~ 8 mm protruding from the surface to be
attached. Using different screws could lead to malfunction or
may lead to the monitor falling off, internal damaged, personal
injury.

6~8mm

Screw used to attach arm
Arm
Part of monitor to which arm is attached

2 – 4

1-8. Information about the Pivot Software (Long height/width display)

When rotating the display, change the display orientation using Pivot
Software.

Compatible operating systems (OS) for the Pivot Software that comes
with the monitor:

Windows 98/2000/Me/XP
Macintosh OS 8.x - 9.1

• Depending on the graphics accelerator, it may be impossible to use
Pivot Software, even with a compatible OS.

For production information and inquiries regarding Pivot Software:

Portrait Displays, Inc.
(http://www.portrait.com)

■■■■ Installation of Pivot Software

For Windows

1. Quit all applications being used.

2. Load the accessory CD-ROM into the CD-ROM drive of the com­puter.

3. Open the [My computer] CD-ROM.

4. Double click on the [Pivot] folder.

5. Double click on [SETUP.exe].

6. Click [Next].

7. Choose [I accept the tems in the License Agreement].

8. Click [Next].

9. Input your Customer information [User Name] and [Organization].

10. Click [Next].

11. Click on [Install].
Installation will begin.

12. When the message indicating installation is finished is displayed,
click [Next].

13. Click on [Finish].

14. Click on [Yes] and restart the computer.

For Macintosh

1. Quit all applications being used.

2. Load the accessory CD-ROM into the CD-ROM drive of the com­puter.

3. Open the CD-ROM.

4. Double click on the [Pivot] folder.

5. Select the desired language.

6. Double click on [Install MacPortrait].

7. Drag the [MacPortrait Install] icon onto the desired disk.
Installation will begin.

8. When the message indicating installation is finished is displayed,
click on [Restart].

■■■■ Switching display direction

For Windows

1. Click the right mouse button or click the left mouse button on at
the lower right of the screen.

2. Select [Rotate], [Rotate to 0] or [Rotate to 90].

Rotate: The display direction switches.
Rotate to 0: The display direction is switched to long width.
Rotate to 90: The display direction is switched to long height.

For Macintosh

Choose [ROTATE Now] from at the lower right of the screen.

Each time [ROTATE Now] is selected, the display direction switches.
Note:

• Rotation of the display to match the display direction is done manu­ally.

• The display direction on the OSD menu is switched using [OSD
PIVOT] on the [MODE SELECT-2] menu.

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

2 – 5

2. ADJUSTMENT

2-1. ADJUSTMENT METHOD

1) Resetting all adjustment values. 7) SET/RESET of Usage Time
While pressing + , turn on the power.

2) ADJUSTMENT menu reset (Analog only)

MENU

3) Adjustment lock and lock release
While pressing

4) Adjusting the backlight
Adjust with and

5) Checking product information
While pressing , turn on the power.

6) Aging
While pressing + , turn on the power.

8) Display adjustment

MENU

ADJUSTMENT AUTO

(Analog only)

GAIN

MENU

CONTROL

(Analog only)

COLOR

MENU

CONTROL

MENU

MENU

, turn on the power.

While pressing

simultaneously.Press +

SET/RESET USAGE TIME

INPUT

While pressing

USAGE TIME

MANUAL RESET

10000
1000
100
10
1

CLOCK
PHASE
H-POS
V-POS

AUTO
BLACK LEVEL
CONTRAST

COLOR MODE (sRGB, STD, VIVID)

(Adjust with .)and
(Adjust with .)and
(Adjust with .)and
(Adjust with .)and

(Adjust with .)and
(Adjust with .)and

0
0
0
0
0

(Adjust with .)and

, turn on the power.

RESET
x 10000

(Adjust with .)and

x 1000

(Adjust with .)and
(Adjust with .)and

x 100

(Adjust with .)and

x 10

(Adjust with .)and

x 1

MENU

MODE SELECT-1

MENU

MODE SELECT-2 OSD

MENU

WHITE BALANCE WHITE BALANCE

GAMMA
HUE

SATURATION
6 COLORS

INFORMATION

LANGUAGE

SCALING
400 LINES

(Analog only)

(Adjust with .)and
(Adjust with .)and
(Adjust with .)and

MENU

OFF TIMER

INPUT-1
INPUT -2

(Adjust with .)and
(Adjust with .)and

OSD H-POSITION

(Adjust with .)and
(Adjust with .)and

MENU

MENU

COOL STD

MENU

RED HUE
YELLOW
GREEN
CYAN
BLUE
MAGENTA

(Display)

(Adjust with .)and

MENU

(Adjust with .)and

OSD V-POSITION
OSD PIVOT

(Select with .)

MENU

WARM USER

MENU

*Same as RED.

(When ON, Adjust with .)and

(Adjust with .)and
(Adjust with .)and

(Adjust with .)and

R-CONTRAST
G-CONTRAST
B-CONTRAST

(Adjust with .)and
(Adjust with .)and
(Adjust with .)and

(Adjust with .)and

SATURATION

(Adjust with .)and

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

2 – 6

2-2. ADJUSTMENT ITEM LIST

BUTTON ITEM ADJUSTMENT DESCRIPTION

MENU MENU 1:

MENU 1

ADJUSTMENT

MENU 2:
GAIN CONTROL

MENU 3:
COLOR CONTROL

4

MENU 2

4

MENU 3

4

MENU 4

4

MENU 5

4

MENU 4:

MENU END

MODE SELECT-1

MENU 5:
MODE SELECT-2

c
ed

POWER ON, OFF

MANUAL CLOCK 0~255 CLOCK: The figure below demonstrates how to adjust so that vertical

PHASE 0~31 PHASE: The figure below demonstrates how to adjust so that horizontal

H-POS 0~ H-POS (horizontal positioning) and
V-POS 0~

AUTO Automatic screen adjustment

MANUAL BLACK

AUTO GAIN CONTROL Menu

COLOR MODE sRGB, STD, VIVID STD: Displays image with th e color tone results from o riginal scheme of

WHITE BALANCE COO L • STD • WARM

GAMMA -10~10 Adjust so that dark and bright images are easy to see. If the screen is dark

HUE -20~20 Hue can be adjuste d . (
SATURATION -50~50 Color saturation can be adjusted. (

6 COLORS RED, YELLOW,

IINFORMATION A model name (MODEL), a s erial no. (S/N), an d usage tim e (USAGE

OFF TIMER ON (1 - 23 hours) • OFF Power is automatically shut off when the set time elapses.
INPUT-1 1LINE • 2LINES Set [1 LINE] wh en con necting d igital o r an alog signal cabl es to a DVI-I
INPUT-2 1LINE • 2LINES

OSD H-POSITION OSD H-POSITION (OSD horizontal position)

OSD V-POSITION OSD V-POSITION (OSD vertical position)

OSD PIVOT OFF (lands cape) •

LANGUAGE 7 countrys

SCALING 0~4 SCALING (Level of scaling)

400 LINES 640 • 720 400 LINES (degree of resolution)

LEVEL
CON-

TRAST

0~100 BLACK LEVEL: Total screen brightness can be adjusted while watching

0~100 CONTRAST: While watching the color pattern, adjustments can be made

(5 levels),
USER R • G • B:
0~255

GREEN, CYAN,
BLUE, MAGENTA

ON (portrait )

DEUTSCH, ENGLISH,
ESPANOL,
FRANCAIS, ITAL­IANO, NETHER­LAND, SVENSKA

0~31 Adjusting the backlight

V-POS (vertical positionin g)

AUTO: Every menu option is automatically adjusted using the Auto

sRGB: sRGB is international standard of color representation specified by

VIVID: Displays an image with dynamic and VIVID primary colors .
WHITE BALANCE Menu

USER

and hard to see, increas e the nume rical v al ue. If it is br ight and ha rd t o see ,
lower the numerical value. (

At the minimum value, the screen is black and white.
Hue (HUE) and saturation (SATURATI ON) may be adjusted by color.

TIME) of the display can be ch ecked.

input terminal (INPUT-2) on the display.
Set [2LINES] when connec ting a 2-input cable.

The orientation of the OSD display can be changed.

LANGUAGE

Select the item

flicker noise is not emitted. (

flicker noise is not emitted. (

To center the screen image within the boundaries of the screen, adjust
the left-right (H-POS) values and the up-down (V-POS) values. (
tons)

Options in the ADJUSTMENT Menu can be adjusted automatically
(CLOCK, PHASE, H- POS V-POS).

ed

ed

buttons)

the color pattern. (

so that all graduations appear. (

Gain Control function.

liquid crystal panel.
IEC (International Electrotechnical Commission). Color conversion

is made in taking account of liquid crystals characteristics and rep­resents color tone close to it original image.

COOL : Color tone bluer than standard

• : Color tone slightly bluer than standard

STD : Color tone standard setting

• : Color tone slightly redder than standard

WARM : Color tone redder than standard
R-CONTRAST :
G-CONTRAST :
B-CONTRAST :

e

button for blue-green

d

button for red

e

button for purple

d

button for green

e

button for yellow

d

button for blue

ed

buttons)

ed

The position of the OSD display can be moved to the left and right.
(

ed

buttons)

The position of the OSD display c an be m ov ed u p and do wn. (

Messages displayed on the screen and OSD Menu contents can be
changed to the following languages.

Dutch, English, French, German, Spanish, Italian, Swedish.

The sharpness of the im age can be adjusted. (

You can specify the horizontal resolution of a 400-line screen when
using US text, etc.(

640: 640 u 400 dot mode
720: 720

ed

buttons)

u

400 dot mode (US text etc.)

ed

buttons)

ed

buttons)

buttons)

buttons)

ed

buttons)

ed

buttons)

ed

ed

buttons)

but-

LL-T2020 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS

2 – 7

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

1. SEPARATING DISPLAY UNIT FROM STAND UNIT

1) Remove the screw A. Separate the display unit 1 from the stand unit 2.

2. DISASSEMBLING DISPLAY UNIT

1) Remove the screw B and then remove the display cover 3.

C

2) Remove the screw

3) Remove the connecto r pin

4) Remove the connectors (

6

.

5) Remove the screw

6) Remove the connecto r

7) Remove the screw

8) Remove the screw

9) Remove the connecto rs (

10) Remove the display mask unit

11) Remove the screw (
(

I, J, K, L

12) Remove the board angles (

13) Remove the connector

14) Remove the screw
switch angle

15) Remove the key unit
the connector

P

and then remove the shield pl ate 4.

a

and screw D. Remove the USB board 5.

b, c, d, e

G

and then remove the PS switch cover 7.

f

and screw H. Remove the power supply board 8.

I

and then remove the shield pl ate 9.

J

and then remove the connector locking se at F.

g, h, i

L, M, N, O

).

M, N

j

from the LCD unit O.

P

. Remove the key

.

Q

and then remove

k

.

) and screws (E, F). Remove the main board

) and screw K. Remove the inverter board G.

H

.
). Remove the LCD angles

).

I

9

I

g

10

J

K

i

J

10

C

11

h

c

d

1

A

A

b

F

6

F

2

e

17

4

C

C

C

3

O

a

5

16

19

F

F

E

D

L

j

13

H

f

H

12

L

20

8

7

G

21

P

k

14

M

C

B

B

B

B

B

B

18

LL-T2020 DISA SSEMBLY AND ASS EM BLY

3 – 1

15

N

N

3. DISASSEMBLING STAND UNIT

2
3
4
5

7

1) Remove the screw A. Separate the arm unit 1 from the base unit 2.
) Remove the cable cover 3.
) Remove the screw B and then remove the base arm cover 4.
) Remove the screw C and then remove the base arm cover 5.
) Remove the screw D and then remove the base arm install angle 6.

E

6) Remove the screw
) Remove the base arm an gle 8.

8) Remove the screw

9) Remove the screw

10) Remove the screw

11) Remove the screw

the hinge unit

12) Remove the screw

from the stand cover

and then remove the slide guide 7.

F

and then remove the slide arm cover 9.

G

and then remove the slide arm cover F.

H

and then remove the slide arm angle G.

I

and then remove the hinge covers (H, I) from

J

.

J

and then remove the stand base plates (K, L)

M

.

1

2

13

A

A

12

I

17

14

10

I

H

11

H

9

F

3

4

B

D

8

G

16

15

J

5

J

C

J

D

B

7

B

E

6

LL-T2020 DISA SSEMBLY AND ASS EM BLY

3 – 2

CHAPTER 4. TROUBLESHOOTING

Check whether the following cables are connected correctly.
In addition, check whether the PCs video mode is properly set to the signal timing which meets this machine.

Attached cables
Dedicated AC adapter
Dedicated analog signal cable (DVI-A cable)
Dedicated digital signal cable (DVI-D cable)

The display does not work. (with analog connection, DVI-A cable use)

Green LED comes on when the power button is
pressed?

(Yes)

Remove the analog signal cable. After a short
while time, the LED color changes form green
to orange.

(Yes)

B/L is lit?

(Yes)

The screen is displayed properly in each video
mode?

(Yes)

No error.

1

(No)

(No)

(No)

(No)

Perform 1

Perform 2

Perform 3

Perform 4

AC cable is connected to the power supply
unit?

(Yes)

The power supply unit is switched on?

(Yes)

SW101 is on 1st pin side?

(Yes)

Input signal port is the one to which analog
signal cable is connected?

(Yes)

Test terminal LD811 is DC+5V?

(Yes)

Test terminal LD608 is DC+3.3V?

(Yes)

Test terminal LD815 is DC+5V?

(Yes)

Test terminals LD401, LD402, and LD403 are
DC+3.3V?

(Yes)

Test terminal LD623 changes its level when
POWER switch is turned on and off?

(No)

Check AC cable connection.

Check power supply unit switch.

(No)

(No)

Check SW101 and circuits around IC101.

Press INPUT key to switch over to the

(No)

correct input signal port.

Check circuits around IC801.

(No)

Check circuits around IC601.

(No)

Check DC+5V power supply line (DV5A)
and POWER_CTL1 signal and circuits

(No)

around Q807.

Check circuits around IC401.

(No)

Check the connection line of LD623, and

(No)

check the CN601, SW PWB and cable.

(Yes)

4th pin of IC602 is in H level (DC+5 V)?

(Yes)

C610-side terminal signal of X601 is normal?

(Yes)

Check RESET circuit around IC602.

(No)

(No)

Check IC602 and clock circuit around X601.

LL-T2020 TROUBLESHOOTING

4 – 1

continued from 1

(Yes)

Signal waveforms of test terminals LD304,
LD305 (LD317, LD318) are normal?

(Yes)

Signal waveforms of test terminals LD312,
LD323 (LD313, LD324) are normal?

(Yes)

Signal waveforms of 31st and 32nd pins of
IC402 are normal?

(Yes)

48th pin of IC602 is in H level (DC+3.3V)?

(Yes)

LD613 is H in level (about DC+1.9V)?

(Yes)

Check SW PWB and SW cable and their
connections.

2

The port from which the analog signal cable
was removed is the input signal port selected?

(Yes)

48th pin and 49th pins of IC602 are in H level
(DC+3.3V)?

Check analog signal cable and CN101

(No)

(CN201).

(No)

Check circuits around IC301 and IC302.

Check SDA and SCL signals and circuits

(No)

around IC402 and IC602.

(No)

Check circuits around IC602.

(No)

Check Q601 and its surrounding circuit.

Press INPUT key to switch over to the

(No)

correct input signal port.

(No)

Check circuits around IC602.

(Yes)

LD613 and LD616 are in H level (about
DC+1.9V)?

(Yes)

Check SW PWB and SW cable and their
connections.

3

Test terminal LD801 is DC+12V?

(Yes)

LD807 is in H level (DC+5V)?

(Yes)

LD808 is less than DC+1.0V at maximum
brightness?

(Yes)

1st pin of CN2, CN3, CN4, CN5, CN6, and CN7
on inverter PWB unit is about 790 Vrms? (Use
caution not to get electric shock accident. Use
a high-voltage probe (more than 100:1) for
measuring voltage.)

(Yes)

Check lamp inside LCD module.

(No)

Check Q601 and its surrounding circuits.

When CN802 cable is removed, check the

(No) (No)

LD801 is DC+12V.

(Yes)

Check inverter unit, inverter cable and their
connections.

Check BL_EN signal and circuits around

(No)

CN802.

Check BRT_VR signal and circuits around

(No)

IC604.

(No)

Replace inverter PWB unit with a new one.

Check the power unit and cable and their
connections, and DC+12V power supply
line.

LL-T2020 TROUBLESHOOTING

4 – 2

4

Test terminal LD815 is DC+5V?

(Yes)

Test terminals LD401, LD402, and LD403 are
DC+3.3V?

(Yes)

Test terminal LD806 is DC+5V?

(Yes)

Test terminals LD405, LD523, and LD701 are
DC+3.3V?

(Yes)

Test terminal LD801 is DC+12V?

(Yes)

Test terminal LD501 is DC+2.5V?

(Yes)

LD816 is DC+12.0V?

(Yes)

Check DC+5V power supply line (DV5A),
POWER_CTL1 signal, and circuits around

(No)

Q807.

(No)

Check circuits around IC401.

Check DC+5V power supply line (PV5) ,
POWER_CTL3 signal, and circuits around

(No)

Q807.

(No)

Check circuits around IC403.

When CN802 cable is removed, LD801 is

(No)

DC+12V?

(Yes)

Check inverter unit, inverter cable and their
connections.

Check DC+2.5V power supply line (DV25),
POWER_CTL4 signal, and circuits around

(No)

IC802.
Check DC+12V power supply line (LCDV),

POWER_CTL2 signal, and circuits around

(No)

Q803.

Check the power unit and cable and their

(No)

connections, and DC+12V power supply
line.

36th pin of LC602 is in H level (DC+5V)?

(Yes)

Signal waveform of test terminal LD565 is
normal?

(Yes)

The entire LCD screen is white?

(No)

The entire LCD is black?

(No)

The size of LCD screen is abnormal?

(No)

(No)

Check circuits around IC601.

(No)

Check clock circuit around IC501 and X501.

Clock (R508) and DE (R502) signal outputs

(Yes)

are normal?

(No)

(Yes)

Check circuits around IC701, and CN701
and LCD module.

Test terminal of LD701 is DC+12V?

(Yes)

(No)

(Yes)

Check circuits around X601 and IC602.

ADJUSTMENT and MODE SELECT are set

(Yes) (No)

properly?

(Yes)

Signal waveform of test terminal LD502 is
normal?

(No)

(Yes)

Check circuits around IC502.

Check circuits around IC502.

Check circuits around CN701.

Adjust according to "screen adjustment
procedure".

Check PLL circuits around IC402.

LCD screen jitters or flickers?

(No)

ADJUSTMENT and MODE SELECT are set

(Yes) (No)

properly?

(Yes)

Check circuits around IC301, IC302, and
IC402.

LL-T2020 TROUBLESHOOTING

4 – 3

Adjust according to "screen adjustment
procedure".

continued from 4

LCD screen color is abnormal?

(No)

Display is normal in composite sync and sync­on-green signal input.

(Yes)

Adjustment settings are stored after display
screen is adjusted?

(Yes)

AUTO function of GAIN CONTROL operates
properly?

(No)

GAIN CONTROL and WHITE BALANCE

(Yes) (No)

are set properly?

(Yes)

Analog color signal output (C302, C303,
C305, C319, C320, and C322) is normal?

(Yes)

Digital color signal output of IC402 (ID0
ID47) is normal?

(Yes)

Digital color signal output of IC502 (OD0
OD47) is normal?

(Yes)

Check circuits around IC701, and CN701
and LCD module.

Check circuits around IC402, IC404, and

(Yes)

IC602.

(No)

check circuits around IC602 and IC605.

Digital color signal output of IC402 (ID0

(Yes)

ID47) is normal?

(Yes)

(No)

(No)

(No)

(No)

Adjust according to "screen adjustment
procedure".

Check circuits around IC402.

Check circuits around IC402 and IC502.

Check circuits around IC502 and IC701.

Check circuits around IC402 and IC404.

Check circuits around IC602.

Check circuits around IC402.

Input is changed over properly?

(Yes)

No error.

(No)

The display does not work. (with digital connection, DVI-D cable use)

(No)

Display is normal in analog input?

(Yes)

Input signal port is the one to which digital
signal cable is connected?

(Yes)

LD101 and LD201 are in H level (DC+5V)?

(Yes)

Waveforms of IC103s and 201s 1st and 2nd
pins change normally when resolution is
changed?

(Yes)

Test terminals LD110, LD111, LD112, LD113,
LD210, LD211, LD212, LD213 are DC+3.3V?

(Yes)

CN101 and 201 signals (at 1st, 2nd, 9th, 10th,
17th, 18th, 23rd, and 24th pins) are normal?

(Yes)

IC102 and IC202 signal output (ID0 ID47,
HIS, IVS, ICK, IACT) are normal?

(Yes)

Check circuits around IC502.

First, check with analog signal input.

Press INPUT key to switch over to the

(No)

correct input signal port.

Check CN101 and 201, and signal source

(No)

and digital signal cable.

Check circuits around IC101, IC103 and

(No)

IC201.

Check circuits around IC104 and IC203.

(No)

Check CN101 and 201, and signal source

(No)

and digital signal cable.

(No)

Check circuits around IC102 and IC202.

LL-T2020 TROUBLESHOOTING

4 – 4

CHAPTER 5. WAVE FORM

Waveform measurement condition: Input each of the display patterns
and measure the waveform (tinming chart).

Wave-form

No.

1 LD565 REFCK Arbitrary
2 IC601 of 2PIN XTAL Arbitrary
3 LD305, LD318 VSYNC Arbitrary
4 LD304, LD317 HSYNC Arbitrary
5 LD502 ICK Arbitrary
6 LD504 VS Arbitrary
7 LF505 IHS Arbitrary
8 IC701 of 10PIN DCLK Arbitrary
9 IC701 of 9PIN DEN Arbitrary

10 LD300, LD301,

Measurement

point

LD302

Name of

waveform

RGB OUT 16 monochromatic

Display pattern

gradation patterns

CAUTION

Oscilloscope: Tektronix644 B
Input signal: VESA1600 x 1200

H: 75kHz V: 60Hz
DOTCLK: 162MHz

WAVE FORM 1: REFCK (LD565)

Frequency: 81MHz
Display screen: Arbitrary

2V/DIV, 10ns/DIV

WAVE FORM 2: XTAL (IC601 of 2PIN)

Frequency: 24MHz
Display screen: Arbitrary

1V/DIV, 25ns/DIV

GND

WAVE FORM 3: VSYNC (LD305, LD318)

Frequency: 60Hz
Display screen: Arbitrary

1V/DIV, 5ms/DIV

GND

GND

WAVE FORM 4: HS YNC (LD304, LD317)

Frequency: 75kHz
Display screen: Arbitrary

1V/DIV, 5µµµµs/DIV

GND

LL-T2020 WAVE F ORM

5 – 1

WAVE FORM 5: ICK (LD502)

Frequency: 81MHz
Display screen: Arbitrary

1V/DIV, 5ns/DIV

WAVE FORM 8: DCLK (IC701 of 10PIN)

Frequency: 81MHz
Display screen: Arbitrary

1V/DIV, 5 ns / D IV

GND

WAVE FORM 6: VS (LD504)

Frequency: 60Hz
Display screen: Arbitrary

1V/DIV, 5ms/DIV

GND

GND

WAVE FORM 9: DE N (IC701 of 9PIN)

Frequency: 75kHz
Display screen: Arbitrary

1V/DIV, 5µµµµs/DIV

GND

WAVE FORM 7: IHS (LD505)

Frequency: 75kHz
Display screen: Arbitrary

1V/DIV, 5µµµµs/DIV

GND

WAVE FORM 10: RGB OUT ( LD300, LD301, LD302)

Display screen: 16 monochromatic gradation patterns

0.5V/DIV , 5µµµµs/DIV

GND

LL-T2020 WAVE F ORM

5 – 2

CN2

8PIN

USB-CN

DATA-[1,2]

CN1

DATA-

IC3

USB-CN

uPD72012

4PIN

OUT[1, 2]

IC2

uPD16857

FLG[1,2]

CTL[1,2]

IC1

3.3V

X62FP3302

5V

USB PWB

5V

Invertor Unit

/ /LED

SW PWB

Power/Input/Menu/Selct/

Lamp

LCD Panel

Lamp

DATA+[1,2]

X1

4MHz

DATA+

12V

CN803

CN802

PV33/AV33/DV33/

Regulator LM317

Regulator

12V

3.3V

DV5 DV5A

5V

PQ1CY1032Z

OV33/AD33

V33

3.3V

IC601

IC104/203/401

Regulator LM317

AV5

IC801

12V

Regulator LM317

PV5

Regulator

BL_EN

LV33

3.3V

IC403

LCDV

PQ20WZ11

12V

IC803

DV25

2.5V

gulator
Re

PQ1CZ21H2Z

BRT_VR

IC802

RXD

CN601

DAC

Reset

EEPROM

TXD

KEY

IC604

IC603

IC605

SDA/SCL SDA/SCL

POWER_CTL

MPU

IC602

A / D-DDC

X601

IC103

CN701

LVDS

IC701

Transmitter

DATAX

Logic

IVS

IACT

ICK(B)

IC202

STROBE_X

IC504

SCLK_X

XCLDWN

HREF1

HREF2

ASIC

IC404

AUTO & AGC

IC501

PDO2

SDET2

VS

PD2

X501

IHS/IVS

TMDS

10MHz

ID[0..47]

SII161B

Clock

OD[0..47]

iLS-L001

Scaling Chip

IHS

IC402

HIN1

Generator

IC502

HIN2

DEN

DCLK

CTL

ACT

PD1

SDET1

IHS/IVS

TMDS

ID[0..47]

SII161B

I

IC102

PDO1

ICK(B)

SDA

SCL

ICK(B)

IHS/IVS

ID[0..47]

COMSYN

ADC

AD9888-170

VIN2

VIN1

CN801

Unit

Power

CHAPTER 6. BLOCK DIAGRAM

SCL

SDA

IC101

MAIN PWB

Switc h

SW101

LL-T2020 BLOCK DIAGRAM

RX

SCL

SDA

IC302

Buffer

VS1

HS1

DVI- I

CN101

RGB1

Comparator

IC301

RX

RGB2

IC201

A/D-DDC

SCL

DVI- I

SDA

CN201

HS2

VS2

6 – 1

B

B

B

D

D

D

D

1/9

12345678

12345678

12345678

12345678

C

C

C

C

B

A

21

21

21

21

3

3

3

3

CHAPTER 7. CIRCUIT DIAGRAM

POWER SUPPLY PWB

D

D

D

D

C

C

C

C

LL-T2020 CIRCUIT DIAGRAM

7 – 1

87654

87654

87654

87654

B

B

B

B

A A

A A

A A

A

B

B

B

D

D

D

D

C

C

C

C

B

A

2/9

12345678

12345678

12345678

12345678

LD101

23

D101

RB715F

DV5

SW101

SSSS916900

R101

4.7kJ

C109

0.1uF

10111213141516

OE

VCC

S

1B1

IC101

FST3257

R102

47kJ

3
2
1

MD1

D103

UDZS5.6B

1234567

R108

47kJ

R107

47kJ

4B1

1B21A2B1

R109 0J

RXD

3B14A4B2

2B22AGND 3A

TXD

ID[0..47]

3B2

89

1234

R111 0J

DV5

R112

47kJ

Q101

23

DTC143EE

INP1B

Q102

IMH4A

6

1

DV5

R127

47kJ

5

R114

47kJ

DV5

Q103

23

DTC143EE

R113

4.7kJ

INP1A

R123

4.7kJ
BANKSEL

L : BANK0

H :

BANK1

910111213

14

VCC

WPB

DDCENA

BANKSEL

10uF(3216)

C116

C119 0.1uF

R120

4.7kJ

R119

4.7kJ

R118

4.7kJ

R117

4.7kJ

1

ICK

IACT

IHS

IVS

SCL_MON

DUAL_PCB

BANK0 : ANALOG

BANK1 : DIGITAL

BU9882F

SCL_PC0

SDA_PC0NCSCL_PC1

SDA_PC1NCGND SDA_MON

IC103

12345678

1

DV5

AV33_2

LD113

PV33_2PV33_1 AV33_1

LD112

LD111

LD110

FB102

BLM18PG600SN1

L101

L102

NLC322522T-220K

C123

10uF

C122

EMPTY(22uF/16V(WT))

+

INPUT

3

OUTPUT

R125

220F

2

ADJ

1

IC104

LM317EMP

R126

360F

C121

EMPTY

C120

0.1uF

DV5A

FB103

BLM18PG600SN1

NLC322522T-220K

TMDS_SDET1

TMDS_PDO1

TMDS_PD1

C127

10uF

C126

10uF

C125

10uF

C124

10uF

21

21

21

21

3

3

3

3

DVI1

D102

UDZS5.6B

R106

RX1-

11814

RX1+

FB101

BLM18PG600SN1

5V

GND

RX3-

RX3+

R105

R104

R103

10kJ

15

HP

GND

RX0-

VS1

124567910121316171820212324

3

VS

SCL

SDA

GND

RX2-

RX4-

RX2+

RX4+

CN101

D

D

D

D

DV33_1

OV33_1

75J

75J

75J

RX0+

ID34

ID46

EMPTY

ID27

ID26

ID25

ID24

RA103 33J x4

INPUT 2

C

C

C

C

RA104 33J x4

ID37

ID32

ID36

ID38

ID39

ID35

ID43

ID47

ID44

ID42

ID41

ID40

ID45

ID33

RA106 33J x4

RA105 33J x4

C115

100pF

C114

0.1uF

AV33_1

C113

100pF

C112

0.1uF

C111

100pF

C110

0.1uF

R121 33J

R116 33J

R115 33J

R122 33J

49

50

DE

QO0

QO1

CTL3

OVCC

ODCK

OGND

QO2

VSYNC

HSYNC

51

QO3

52

QO4

53

QO5

54

QO6

55

QO7

56

OVCC

57

OGND

58

QO8

59

QO9

60

QO10

61

QO11

62

QO12

63

QO13

64

QO14

65

QO15

66

VCC

67

GND

68

QO16

69

QO17

70

QO18

71

QO19

72

QO20

73

QO21

74

QO22

75

OGND

QO23

OVCC

AGND

RX2+

RX2-

AVCC

AGND

AVCC

7677787980818283848586878889909192939495969798

LDS102

LDS104

LDS103

PV33_1

C118

100pF

C117

0.1uF

ID31

ID29

ID30

ID28

RA102 33J x4

C108

0.1uF
RA101 33J x4

C107

0.1uF

C106

0.1uF

C105

0.1uF

C104

0.1uF

C103

0.1uF

C102

0.1uF

C101

0.1uF

RED1

GREEN1

BLUE1

HS1

R110

19

22

C1C2C3C4C5

GND

GND

RX5-

RXC-

RX5+

AHSY

RXC+

ARED

ABLUE

ANGND

AGREEN

SD-74320-1004

ID1

ID3

ID14

ID5

QE22

RX0+

LDS107

ID15

ID13

ID10

ID8

ID2

ID4

QE19

QE20

QE21

RX0-

AGND

RXC+

LDS109

LDS108

ID11

ID0

ID12

ID9

RA110 33J x4

RA109 33J x4

2627282930313233343536373839404142434445464748

QE14

QE15

QE16

QE17

QE18

OVCC

OGND

QE13

25

QE12

24

QE11

23

QE10

22

QE9

21

QE8

20

OGND

19

OVCC

18

QE7

17

QE6

16

QE5

15

QE4

14

QE3

13

QE2

12

QE1

11

QE0

10

PDO

9

SCDT

8

STAG_OUT/SYNC

7

VCC

6

GND

5

PIXS/M_S

4

ST

3

PD

2

S_D

1

RXC-

AVCC

EXT_RES

PVCC

PGND

RESERVED

OCK_INV

99

100

510J

R124

ID7

ID6

RA108 33J x4

RA107 33J x4

VCC

GND

CTL1

CTL2

QE23

IC102

THC63DV161

RX1+

RX1-

AGND

AVCC

AGND

LDS105

LDS106

B

B

B

B

ID21

ID20

ID22

ID16

ID18

ID23

ID19

ID17

RA112 33J x4

RA111 33J x4

0J

R132

R130

0J

R128

EMPTY

R133

EMPTY

R131

EMPTY

R129

0J

87654

87654

87654

87654

A A

A A

A A

A

LL-T2020 CIRCUIT DIAGRAM

7 – 2

B

B

B

D

D

D

D

3/9

12345678

12345678

12345678

12345678

1

DV5

23

D201

RB715F

R210

R209

R208

R207

R201

4.7kJ

LD201

D203

UDZS5.6B

C

C

C

C

R211

4.7kJ
BANKSEL

L : BANK0

H :

BANK1

910111213

14

VCC

WPB

DDCENA

BANKSEL

10uF(3216)

C209

C210 0.1uF

4.7kJ

4.7kJ

4.7kJ

4.7kJ

ID[0..47]

SCL_MON

DUAL_PCB

BANK0 : ANALOG

BANK1 : DIGITAL

BU9882F

SCL_PC0

SDA_PC0NCSCL_PC1

SDA_PC1NCGND SDA_MON

IC201

12345678

1234

Q202

IMH4A

5

6

R212

47kJ

DV5

1

Q201

23

DTC143EE

DV5

INP2B

DV5

R213

4.7kJ

B

OV33_2DV33_2

LD213

LD212

OV33_1

R222

47kJ

R218

47kJ

Q203

23

DTC143EE

INP2A

IVS

IACT

ICK

IHS

LD211

DV33_1

LD210

FB202

BLM18PG600SN1

FB203

BLM18PG600SN1

C222

10uF

C221

EMPTY(22uF/16V(WT))

+

1

INPUT

3

OUTPUT

R220

220F

2

ADJ

1

IC203

LM317EMP

DV5A

R221

C220

EMPTY

C219

0.1uF

FB204

BLM18PG600SN1

FB205

360F

BLM18PG600SN1

C226

10uF

C225

10uF

C224

10uF

C223

10uF

A

21

21

21

21

3

3

3

3

TMDS_PDO2

TMDS_PD2

TMDS_SDET2

DVI2

D202

UDZS5.6BR203

R205

11814

RX1-

RX1+

FB201

BLM18PG600SN1

15

5V

GND

RX3-

RX3+

R204

R202

10kJ

HP

GND

VS2

124567910121316171820212324

3

VS

SCL

SDA

GND

RX2-

RX4-

RX2+

RX4+

CN201

RX0-

DV33_2

OV33_2

75J

75J

75J

OVCC

PVCC

RA209 33J x4

ID15

RA210 33J x4

2627282930313233343536373839404142434445464748

QE15

OGND

PGND

RESERVED

99

100

ID13

ID14

QE14

OCK_INV

R219

ID8

ID12

ID11

ID10

ID9

QE13

25

QE12

24

QE11

23

QE10

22

QE9

21

QE8

20

OGND

19

OVCC

18

QE7

17

QE6

16

QE5

15

QE4

14

QE3

13

QE2

12

QE1

11

QE0

10

PDO

9

SCDT

8

STAG_OUT/SYNC

7

VCC

6

GND

5

PIXS/M_S

4

ST

3

PD

2

S_D

1

510J

ID46

ID30

ID26

ID29

ID27

ID31

ID28

ID25

C208

0.1uF

RA202 33J x4

RA201 33J x4

C207

0.1uF

C206

0.1uF

C205

0.1uF

C204

0.1uF

C203

0.1uF

C202

0.1uF

C201

0.1uF

HS2

RED2

GREEN2

BLUE2

R206

EMPTY

19

22

C1C2C3C4C5

GND

GND

RX5-

RXC-

RX0+

RX5+

AHSY

RXC+

ARED

ABLUE

ANGND

AGREEN

SD-74320-1004

INPUT 1

ID34

ID24

ID38

ID35

ID39

ID37

ID36

RA204 33J x4

RA203 33J x4

ID43

ID47

ID42

ID32

ID44

ID45

RA205 33J x4

AV33_2

RA206 33J x4

ID40

ID41

R216 33J

R215 33J

R214 33J

49

50

QO0

QO1

VSYNC

QO2

HSYNC

51

QO3

52

QO4

53

QO5

54

QO6

55

QO7

56

OVCC

57

OGND

58

QO8

59

QO9

60

QO10

61

QO11

62

QO12

63

QO13

64

QO14

65

QO15

66

VCC

67

GND

68

QO16

69

QO17

70

QO18

71

QO19

72

QO20

73

QO21

74

QO22

75

OGND

QO23

OVCC

AGND

7677787980818283848586878889909192939495969798

LDS202

C216

100pF

C215

0.1uF

C214

C213

C212

C211

PV33_2

100pF

0.1uF

100pF

0.1uF

C218

100pF

C217

0.1uF

ID33

ID6

ID3

ID5

ID0

ID1

ID2

ID4

ID7

R217 33J

RA208 33J x4

RA207 33J x4

DE

VCC

GND

CTL1

CTL2

CTL3

OVCC

ODCK

OGND

RX2+

RX2-

AVCC

AGND

AVCC

RX1+

RX1-

LDS204

LDS203

IC202

AGND

LDS205

QE23

THC63DV161

AVCC

AGND

LDS206

QE16

QE17

QE18

QE19

QE20

QE21

QE22

RX0+

RX0-

AGND

RXC+

RXC-

AVCC

EXT_RES

LDS207

LDS208

LDS209

RA211 33J x4

RA212 33J x4

ID21

ID22

ID19

ID17

ID20

ID16

ID18

ID23

R228

R227

0J

R225

0J

R223

EMPTY

EMPTY

R226

EMPTY

R224

0J

87654

87654

87654

87654

B

B

B

D

D

D

D

C

C

C

C

B

A A

A A

A A

A

LL-T2020 CIRCUIT DIAGRAM

7 – 3

B

B

B

D

D

D

D

C

C

C

C

NF2

NF1

B

NF1

A

NF2

4/9

R302

R301

C302

0.047uF(B)

FB301

MMZ1608D301B

R303

180J

270J

10kJ

RIN1

C303

R306

Q301

2SA1610

12345678

12345678

12345678

12345678

SOG1

1000pF(B)

150J

R305

R304

GIN1

C305

0.047uF(B)

FB302

MMZ1608D301B

R310

180J

10J

10kJ

R308

270J

Q302

2SA1610

R307

10kJ

BIN1

4

5

1

QB

C313

EMPTY

R327

EMPTY

R326

2.2kF

GND

R325

2.2kF

R324

EMPTY

LE B

LE AV-IN A-

5

Q306

EMPTY(FMG8A)

1

23

C316

EMPTY

910111213

V+

IN B-

HREF1

IN A+ IN B+

C317

EMPTY

HREF2

R331

680F

R330

680F

4

4

5

Q305

EMPTY(FMG8A)

1

23

EMPTY

C310

HIN2

R318

33J

AV5

C311

0.1uF

EMPTY(FMG8A)

23

C312

EMPTY

EMPTY

14

QB

QAQAGND

AD8612

IC301

12345678

Q304

C309

HIN1

0.047uF(B)

FB303

MMZ1608D301B

R316

180J

R317

33J

LD312

R313

10J

R312

10kJ

LD313

R333

R332

C319

0.047uF(B)

FB304

MMZ1608D301B

R334

180J

270J

10kJ

RIN2

C320

R337

Q307

2SA1610

SOG2

1000pF(B)

150J

R336

R335

10kJ

GIN2

C322

0.047uF(B)

FB305

MMZ1608D301B

R341

180J

10J

Q308

2SA1610

R339

270J

R338

10kJ

BIN2

4

4

5

4

Q310

EMPTY(FMG8A)

Q311

EMPTY(FMG8A)

1

23

23

C326

EMPTY

C329

EMPTY

C327

EMPTY

VIN2

VIN1

C324

0.047uF(B)

R349

FB306

MMZ1608D301B

R347

180J

R344

10J

R343

10kJ

33J

AD33

141312111098

C328

0.1uF

IC302

SN74LVC14A

R348

33J

LD323

LD324

1234567

5

5

Q312

EMPTY(FMG8A)

1

23

1

C330

EMPTY

C333

EMPTY

C334

6A6Y5A5Y4A

VCC

1A1Y2A2Y3A3YGND

EMPTY

21

21

21

21

3

3

3

3

4Y

R315

270J

Q303

2SA1610

R321

10J

R320

R314

10kJ C307

AV5

C301

0.1uF

DV5

1

D305

DAN217U

32

D304

DAN217U

32

D303

DAN217U

32

D302

DAN217U

32

D301

DAN217U

32

AV5

R309

EMPTY

R311

C306

EMPTY

LD309

10uF(B)

1

LD307

1

C304

10uF(B)

1

1

LD305

LD304

LD303

LD302

LD301

10kJ

AV5

C318

0.1uF

C315

33pF

C314

R319

EMPTY

R322

LD311

C308

10uF(B)

EMPTY

R323

330J

330J

R329

4.7kJ

R328

4.7kJ

DV5AV5

D310

DAN217U

32

D309

DAN217U

32

D308

DAN217U

32

D307

DAN217U

32

D306

DAN217U

32

1

R340

LD318LD317

LD316

LD315

LD314

EMPTY

LD320

LD319

C321

10uF(B)

C323

10uF(B)

1

1

1

1

R346

270J

R345

10kJ

R342

EMPTY

R352

10J

Q309

2SA1610

R351

10kJ

C332

33pF

C331

R350

EMPTY

R353

330J

LD322

C325

10uF(B)

EMPTY

R354

330J

R356

4.7kJ

R355

4.7kJ

GREEN1

ANALOG INPUT

RED1

D

D

D

D

BLUE1

VS1

HS1

C

C

C

C

LL-T2020 CIRCUIT DIAGRAM

7 – 4

87654

87654

87654

87654

VS2

RED2

GREEN2

B

B

B

B

BLUE2

HS2

A A

A A

A A

A

B

B

B

D

D

D

D

ID[0..47]

5/9

12345678

12345678

12345678

12345678

ID3

ID1

ID6

ID0

ID2

ID5

ID7

ID4

ID31

ID29

ID28

ID25

ID30

ID26

ID27

ID24

C

C

C

C

ID12

ID14

ID10

ID13

ID33

ID32

ID34

ID15

ID9

ID11

ID8

ID18

ID19

ID17

ID38

ID35

ID37

ID36

ID22

ID21

ID16

ID39

ID23

ID20

B

ID40

ID45

ID42

ID44

ID46

ID43

ID41

ID47

A

FB401 BLM18PG600SN1

RA401 33J x4

R404 10J

RA411 33J x4

C444

C443

C442

C441

RA412 33J x4

21

21

21

21

0.1uF

R413

10kJ

0.1uF

C445

0.1uF

0.1uF

0.1uF

VIN2

R415

3.3kF
3900pF(B)

C450

C448

0.039uF(B)

HIN2

HIN1

VIN1

C447

1000pF

3

3

3

3

DGA4

RA408 33J x4

RA407 33J x4

C423

0.1uF

VDD

GND

DGB3

DGB2

DGB1

DGB0

DGA7

DGA6

DGA5

IC4 0 2

AD9888

SOGIN0

GAIN0VDGND

SOGIN1

GAIN1VDGND

C424

0.1uF

C422

0.1uF

0.1uF

DGB5

DGB4

BAIN0VDGND

C425

0.1uF

DGB6

DGB7

BAIN1

C427

VDD

BMIDSCVVDVD

C426

RA410 33J x4

RA409 33J x4

0.1uF

C436

0.1uF

6566676869707172737475767778798081828384858687888990919293949596979899

VDD

GND

GND

GND

GND

C428

0.1uF

GND

DBA7

DBA6

DBA5

DBA4

DBA3

DBA2

DBA1

DBA0

GND

GND

CKINV

CLAMP

SDA

SCLA0VD

0.1uF

C429

0.1uF

DBB0

64

DBB1

63

DBB2

62

DBB3

61

DBB4

60

DBB5

59

DBB6

58

DBB7

57

VDD

56

GND

55

CKEXT

54

COAST

53

PVD

52

GND

51

FILT

50

GND

49

PVD

48

PVD

47

GND

46

HSYNC0

45

VSYNC0

44

HSYNC1

43

VSYNC1

42

GND

41

GND

40

VD

39

GND

GNDVDVD

C435

0.1uF

C437

0.1uF

C438

0.1uF

RA402 33J x4

R406 33J

R405 33J

IHS

COMSYN

RA404 33J x4

RA403 33J x4

DRB7

103

DRB6

104

DRB5

105

DRB4

106

DRB3

107

DRB2

108

DRB1

109

DRB0

110

GND

111

VDD

112

0.1uF

C408

0.1uF

R407 33J

C407

10uFR409

AD33

IVS

DRA7

113

DRA6

114

DRA5

115

DRA4

116

DRA3

117

DRA2

118

DRA1

119

DRA0

120

GND

121

VDD

122

DATACK

123

DATACKB

124

HSOUT

125

SOGOUT

126

VSOUT

127

GND

128

C413

EMPTY

RA406 33J x4

RA405 33J x4

C415

0.1uF

C417

0.1uF

100

101

102

VDD

VDD

GND

GND

GND

DGA3

DGA2

DGA1

DGA0

VD

REF BYPASS

GND

GND

RAIN0VDVD

RAIN1

RMIDSCVVDGND

123456789

1011121314151617181920212223242526272829303132333435363738

C418

0.1uF

C421

C414

0.1uF

C416

0.1uF(B)

C419

0.1uF

C420

0.1uF

R401 ENPTY

R402 0J

R416 0J

C401

EMPTY

ICK

ADC

R403 EMPTY

ICK1

C412

EMPTY

+

LD403

LD402

LD401

R410

33J

FB402

BLM18PG600SN1

C402

33pF

LD404

C406

10uF

+

C405

EMPTY(22uF/16V(WT))

INPUT

3

OUTPUT

R408

2

ADJ

1

IC401

LM317EMP

C404

EMPTY C409

DV5A

C403

0.1uF

D

D

D

D

220F

FB403

360F

C411

C410

BLM18PG600SN1

10SVP33M

10uF

RIN1

BIN1

GIN1

SOG1

RIN2

SOG2

BIN2

GIN2

SDA

SCL

LD405

C434

10uF

FB404

BLM18PG600SN1

LD406

LV33

C432

EMPTY(22uF/16V(WT))

INPUT

3

OUTPUT

2

ADJ

1

IC403

LM317EMP

C431

PV5

C430

C

C

C

C

LD409

LD408

LD407

C433

10uF

+

R411

220F

R412

360F

10uF

0.1uF

C440

LD413

LD412

LD411

LD410

ID[0..47]

0.1uF

C439

0.1uF
ID7
ID6
ID5
ID4
ID3
ID2ID22
ID1
ID0
ID31
ID30
ID29
ID28

B

B

B

B

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

R414

330J

VPOL

LD414

VSS

REG8

1VDD
REG9

VPOLOUT
REG10
REG11
REG12

VSS

REG13
REG14
REG15

1VDD

VSS

TST_EN
RD17
RD16
RD15
RD14
RD13
RD12
RD11
RD10
RD27
RD26
RD25
RD24

VSS

1VDD

RD23

RD22

123456789

C446

0.1uF

ID25

ID26

ID27

HPOL

SCLK

VS_IN

HS_IN

VSS

SCK

COAST

VSYNCO

HSYNCO

TST_EN1

HPOLOUT

RD21

RD20

GD17

GD16

GD15

GD14

GD13

101112131415161718192021222324

ID14

ID24

ID15

ID11

ID10

ID12

ID13

ASIC_CSSIRESET

C449

CS

DIN

RESET

IC40 4

GD12

GD11

GD10

ID9

ID8

SO

0.1uF

VSS

1VDD

REG7

DOUT

S1L50753F26P

VSS

ADCK

1VDD

HSYNC

C451

0.1uF

IHS

ICK1

LD415

LD416

REG6

VSYNC

IVS

LD417

LD418

REG4

REG5

CSYNC1

CSYNC2

ID39

COMSYN

REG3

GD27

LD419

ID38

REG2

GD26

LD420

ID37

REG1

GD25

LD421

LD422

C452

0.1uF

51525354555657585960616263646566676869707172737475

1VDD

REG0

VSS

50

BD20

49

BD21

48

BD22

47

BD23

46

BD24

45

BD25

44

BD26

43

BD27

42

1VDD

41

VSS

40

BD10

39

BD11

38

BD12

37

BD13

36

BD14

35

BD15

34

BD16

33

BD17

32

VSS

31

GD20

30

GD21

29

GD22

28

GD23

27

1VDD

26

GD24

VSS

25

ID36

A A

A A

A A

A

ID40
ID41
ID42
ID43
ID44
ID45
ID46
ID47

C454

0.1uF
ID16

ID17
ID18
ID19
ID20
ID21

ID23
ID32

ID33
ID34
ID35

C453

0.1uF

87654

87654

87654

87654

LL-T2020 CIRCUIT DIAGRAM

7 – 5

B

B

B

B

DCLK

CLAMP

C

C

C

C

DEN

OD[0..47]

D

D

D

D

6/9

12345678

12345678

12345678

12345678

A

LD506

LD505

LD504

LD503

LD502

LD501

OD41

OD43

OD37

OD44

OD45

OD46

HSCMP

ID22

165

LD534

166

OD47

R502 33J

RA501 33J x4

LD541

LD535

LD539

C518

0.1uF

C519

0.1uF

OST

VDD

VDD

GND

GND

GND

OACT

IVSOB

ID23

CVDD

RSB

CGND

ID24

167

168

169

170

CD43

CD44

CD45

OD46

OD47

OVSB

OHSB

ID25

ID26

ID27

ID28

ID29

ID30

ID31

ID32

CVDD

VDD

171

172

173

174

175

176

177

178

179

180

COMSYN

SCLK

SISOICK

LD531

C515

0.1uF

C516

0.1uF

100

101

102

103

104

VDD

VDD

C511

0.1uF

C510

0.1uF

C509

0.1uF

C508

0.1uF

C504

0.1uF

C507

0.1uF

C506

0.1uF

GND

CGND

VDD

OSDCK

105
106
107
108
109
110
111
112
113
114

SI

115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156

SYNSPO

OSDVSB

OSDHSB

CVDD

OSDDE

OSDDI0
OSDDI1
OSDDI2

OSDDI3
CSB
SPL
SCK

SO

CVDD

ICK

CGND

COMSYN
IVSB
IHSB
IACT

IFLD
ID0
ID1

VDD

CVDD

YUVCK
GND
GND

CGND
ID2
ID3
ID4
ID5
ID6
ID7
ID8
ID9

ID10
ID11
ID12
ID13
ID14
ID15

CGND

TEST0

TEST1

TEST2

TEST3

TEST4

TEST5

TESTO

VDD
VDD

CVDD

GND

ID16

ID17

ID18

ID19

ID20

ID21

157

158

159

160

161

162

163

164

IHS

IACT

VS

L001_CS

OD39

OD40

OD36

OD42

OD38

33J x4

RA502

RA503 33J x4

C521

0.1uF

C525

0.1uF

C522

0.1uF

VDD

VDD

GND

GND

GND

CVDD

CGND

IC502

iL S-L001

GND

GND

CGND

ID33

ID34

181

182

183

184

185

OD35

OD36

OD37

OD38

OD39

OD40

OD41

OD42

ID35

ID36

ID37

ID38

ID39

ID40

ID41

ID42

ID43

ID44

186

187

188

189

190

191

192

193

194

195

OD28

OD33

OD32

OD35

OD29

OD31

OD34

OD30

RA505 33J x4

RA504 33J x4

C533

0.1uF

C531

0.1uF

C527

0.1uF

5354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899

VDD

VDD

GND

GND

ID45

196

197

OD27

OD28

OD29

OD30

OD31

OD32

OD33

OD34

ID46

ID47

198

CVDD

VDD

52

VDD

51

GND

50

CGND

49

OCK

48

GND

47

VDD

46

OD26

45

OD25

44

OD24

43

GND

42

OD23

41

VDD

40

OD22

39

OD21

38

GND

37

OD20

36

OD19

35

OD18

34

VDD

33

OD17

32

GND

31

OD16

30

OD15

29

OD14

28

GND

27

GND

26

CGND

25

VDD

24

CVDD

23

OD13

22

OD12

21

OD11

20

OD10

19

GND

18

VDD

17

OD9

16

OD8

15

OD7

14

GND

13

OD6

12

OD5

11

VDD

10

OD4

9

OD3

8

GND

7

OD2

6

OD1

5

OD0

4

GND

3

CVDD

2

VDD

1

VDD

CGND

PLLVSS

PLLPADO

PLLPADI

PLLEN

PLLTEST

PLLVDD

VDD

REFCK

199

200

201

202

203

204

205

207

208

206

OD26

OD27

R508 33J

RA506 33J x4

C544

0.1uF

C543

0.1uF

C542

0.1uF

C541

0.1uF

C540

0.1uF

C539

0.1uF

C538

0.1uF

C537

0.1uF

OD17

OD22

OD20

OD25

OD24

OD23

OD19

OD21

RA507 33J x4

C545

0.1uF

OD11

OD12

OD10

OD13

OD15

OD16

OD14

OD18

RA509 33J x4

RA508 33J x4

RA510 33J x4

OD2

OD9

OD8

OD0

OD7

OD1

OD4

OD3

OD6

OD5

RA511 33J x4

RA512 33J x4

21

21

21

21

3

3

3

3

C502

10uF

FB501

BLM18PG600SN1

LD508

LD507

ID0

ID5

ID6

ID7

ID2

ID3

ID4

ID1

ID[0..47]

C501

10uF

DV25

C503

West Umeda

D

D

D

D

ID8

ID9

10pF(CH)

LD522

LD521

ID14

ID12

ID15

ID11

ID13

ID10

LD523

FB502

BLM18PG600SN1

LD524

LV33

IC501

X501

ICS307-02

SMD-49(24.00MHz)

C505

10pF(CH)

C514

0.1uF

C512

10uF

XCLDWN

DATA_X

16151413121110

X2

NC

NC

PDTS

DATA

X1/ICLKNCVDDNCGND

1234567

C513

0.01uF

LD526

LD525

ID16

ID18

ID17

STROBE_XSCLK_X

NC

CLK1

SCLK STROBE

CLK2

NC

89

LD537

C532

0.1uF

0.1uF

R503

20kF

R505

75F

LD565

R504

EMPTY

C530

EMPTY

C529

EMPTY

678

S0

VDD

FSOUT

C534

EMPTY

XIN

XOUTS1LF VSS

IC503

EMPTY(IMIFS781BZB)

R506

EMPTY

123

45

B

B

B

B

C536

0.01uF

C546

0.1uF

141312111098

2D

2Q

2Q

2PR

VCC

2CLK

2CLR

1CLR1D1CLK

1PR1Q1Q

CLAMP

GND

VS

87654

87654

87654

87654

A A

A A

A A

A

IC504

TC74LCX74FT

1234567

C535

EMPTY

R507 0J

PLL_EN

IVS

ID39

0.1uF

10uF

EMPTY

C528

LD562

ID45

ID43

ID47

ID44

ID41

ID42

ID40

ID46

LD563

FB505

EMPTY(BLM18PG600SN1)

LD564

C526

0.01uF

C520

LD536

C517

0.1uF

ID24

ID22

ID19

ID20

ID21

ID23

RESET

C

C

C

C

0.1uF

ID35

ID32

ID26

ID31

ID30

ID27

ID25

ID28

ID29

FB504

CL33

FB503

OSC501

ID37

ID36

ID38

ID34

ID33

C524

LD549

C523

BLM18PG600SN1

BLM18PG600SN1

LD548

R501

4

VCC

CNT

GND OUT

EMPTY(DSO751SV(60MHz))

1

23

LL-T2020 CIRCUIT DIAGRAM

7 – 6

B

B

B

D602

UDZS5.6B

LD621

LD620

V33

C608

B

LD623

LD622

R626

330J

R625

EMPTY

ADTRG/IRQ2/P90

20

IRQ1/P91

19

IRQ0/P92

18

RD/P93

17

WR/P94

16

IOS/AS/P95

15

EXCL/P96

14

WAIT/P97

13

VSS

12

TxD0/P50

11

RxD0/P51

10

SCK0/P52

9

VCC2

8

STBY

7

NMI

6

MD0

5

MD1

4

EXTAL

3

XTAL

2

RES

1

C609

0.1uF

R624

47kJ

V33

5

VCC

0.1uF
M/R

SUB

IC603

PST598I

1234

B

B

B

B

GND VOUT

HREF1

BRT_VR

HREF2

R629 680F

45

AO2

AO3

C611

1000pF

47kJ

X601

C610

10pF(CH) R627

V33

AO4GND

SDA

SCL

IC604

M62334FP

678

LD624

V33

SMD-49(10.00MHz)

C612

10pF(CH)

R628

47kJ

1

Q602

DTC143EE

23

MD1

C606

0.1uF

POWER_CTL1

C

C

C

C

123456789

CN601

09FLZ-SM1-TB

LD618

LD614

LD617

LD613

LD616

FB602

FB607

FB604

FB603

FB605

FB606

R617

330J

R616

330J

V33

R611

47kJ x6

R610

R609

R608

SO

SI

RESET

R604

47kJ

V33

R605

EMPTY

R607 100J

R606 100J

LD611

C607

40

AVSS

AVCC

P70/AN0

P71/AN1

P72/AN2

P73/AN3

P74/AN4

P75/AN5

P76/AN6/DA0

P77/AN7/DA1

P42/TMRI0/SCK2

41

P43/TMCI1

42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60

C

C

C

C

P40/TMCI0/TxD2/IrTxD

P41/TMO0/RxD2/IrRxD

P44/TMO1

P45/TMRI1
P46/PWX0
P47/PWX1

VCC1

P27/A15
P26/A14
P25/A13
P24/A12
P23/A11

P22/A10
P21/A9
P20/A8

VSS

P17/A7
P16/A6
P15/A5
P14/A4

A3/P13

A2/P12

A1/P11

61626364656667686970717273747576777879

POWER_CTL2

POWER_CTL3

POWER_CTL4

A0/P10

LD610

D0/P30

LD612

D1/P31

LVDS_PD

PLL_EN

IC60 2

D2/P32

D3/P33

TMDS_PD1

V33V33

HD64F2134AVFA10

D4/P34

D5/P35

D6/P36

D7/P37

TMDS_PDO1

TMDS_PDO2

TMDS_PD2

LD615

R613

R612

R619

R618

R620

R622

R621

R623

VS_IN

HS_IN

0.1uF

21222324252627282930313233343536373839

P61/FTC/CIN1/KIN1

P63/FTC/CIN3/KIN3

P64/FTC/CIN4/KIN4

P65/FTC/CIN5/KIN5

P67/CIN7/KIN7/IRQ7

P62/FTC/CIN2/KIN2/TMIY

P66/FTOB/CIN6/KIN6/IRQ6

VSS

P80

P81

P82

P83

TxD1/IRQ3/P84

RxD1/IRQ4/P85

80

HPOL

VPOL

TMDS_SDET2

TMDS_SDET1

R615

EMPTY

R614

EMPTY

TXD

RXD

BLM18AG121SN1x6

100J x6

P60/FTC/CIN0/KIN0

SCK1/IRQ5/P86

LD619

D

D

D

D

7/9

12345678

12345678

12345678

12345678

V33

1234

Q601

IMH4A

5

6

BL_EN

INP1B

INP1A

C605

10uF

D601

R601

10uF

UDZS5.6B

220F

R602

360F

SCLK

R603 100J

XCLDWN

MPU

INP2A

INP2B

NF2

NF1

SCLK_X

STROBE_X

DATA_X

LD607

LD604

LD606

LD603

LD602

LD605

LD601

LD609

V33

FB601

BLM18PG600SN1

CL33

LD608

C604

+

C603

100uF/16V(WT)

INPUT

3

OUTPUT

2

ADJ

1

IC601

LM317EMP

C602

10uF

DV5

C601

0.1uF

D

D

D

D

LD625

123

AO1

VCC

C613

ASIC_CS

L001_CS

A

21

21

21

21

R635

2.2kF

R632

EMPTY

V33

0.1uF

LD628

LD629

LD627

LD626

123

A0A1A2

SCLKWPVCC

IC605

R630 100J

SDA

BR24C16FV

R631 100J

V33

SCL

678

R634

47kJ

R633

47kJ

A A

A A

A A

A

3

3

3

3

45

GNDSDA

87654

87654

87654

87654

LL-T2020 CIRCUIT DIAGRAM

7 – 7

B

B

B

BLON

RBIN0-

VCC

RBIN0+

VCC

VSS

RBIN1-

VSS

RBIN1+

RBIN0-

RBIN0+

B

RBIN1+

RBIN1-

VSS

VSS

2928302726252423222120

RBIN2-

RBIN2+

VSS

CKBIN-

CKBIN+

VSS

313233343536373839

RBIN3-

RBIN2-

RBIN3+

RBIN2+

RBIN3-

RBIN3+

VSS

40

SELLVDS

R704

4.7kJ

LV33

RBCLKIN-

RBCLKIN+

10J

R706

EMPTY

D

D

D

D

8/9

12345678

12345678

12345678

12345678

C

C

C

C

RACLKIN-

R701

LCDV

150uF/25V(WT)

RACLKIN+

10J

10J

R702

CN701

VCC

VCC

RAIN0-

RAIN0+

VSS

VSS

VSS

RAIN1-

RAIN1+

VSS

RAIN2-

RAIN2+

VSS

CKAIN-

CKAIN+

VSS

RAIN3-

RAIN3+

RAIN2-

RAIN3-

RAIN2+

RAIN3+

VSS

19

BM40B-SRDS-G-TF

125

6

34789

101112131415161718

C706

0.1uF

+

C705

RAIN0-

RAIN0+

RAIN1+

RAIN1-

A

21

21

21

21

3

3

3

3

LD701

LD702

FB701

BLM18PG600SN1

LV33

R703 10J

18

27

36

45

18

27

36

TC1+

R24

TCLK1-

R25

OD5

OD6

TD1-

TCLK1+

R26

R27

OD7

IC701

C708

45

C709

TB2-

TA2-

TB2+

TA2+

TD1+

LVDS GND

THC63LVD823

VCC

GND

G20

G21

G22

G23

0.1uF RN703 10J*4

OD9

OD11

OD8

OD10

OD12

18

27

36

45

RN702 10J*4

RN701 10J*4

C707

C702

EMPTY(22uF/16V(WT))

+

12

C704

0.1uF
R10

51

R11

52

R12

53

R13

C701

10uF

OD31

OD30

OD32

OD33

OD34

OD35

OD36

OD37

OD38

OD39

OD40

OD41

OD42

OD43

OD44

OD24

OD25

OD26

OD27

OD28

OD29

54
55
56

R14

57

R15

58

R16

59

R17

60

G10

61

G11

62

G12

63

G13

64

G14

65

G15

66

G16

67

G17

68

B10

69

B11

70
71
72

B12

73

B13

74

B14

75

C703

0.1uF

0.1uF

TB1-

TA1-

TC1-

TB1+

TA1+

LVDS VCC

LVDS GND

VCC
GND

VCC
GND

B15

B16

B17

R20

R21

R22

R23

7677787980818283848586878889909192939495969798

OD46

OD45

OD47

OD0

OD4

OD2

OD1

OD3

0.1uF

TC2-

TC2+

LVDS VCC

G24

G25

G26

OD14

OD13

OD15

TCLK2-

G27

OD16

TD2-

TCLK2+

B20

B21

OD17

99

OD18

TD2+

B22

18

27

RN704 10J*4

26272829303132333435363738394041424344454647484950

LVDS GND

B23

100

OD19

R705

36

45

C711

0.1uF

PLL GND

25

PLL VCC

24

PLL GND

23

TEST5

22

TEST4

21

TEST3

20

/PDWN

19

6/8

18

OE

17

MODE0

16

MODE1

15

TEST2

14

TEST1

13

RS

12

R/F

11

CLKIN

10

DE

9

VSYNC

8

HSYNC

7

B27

6

B26

5

GND

4

VCC

3

B25

2

B24

1

C710

0.1uF

OD20

OD21

OD22

OD23

R709

4.7KJ

R710

EMPTY

R708

EMPTY

R707

4.7kJ

LVDS

87654

87654

87654

DEN

DCLK

OD[0..47]

B

B

B

D

D

D

D

C

C

C

C

B

LVDS_PD

A A

A A

A A

A

87654

LL-T2020 CIRCUIT DIAGRAM

7 – 8

B

B

B

D

D

D

D

1234567

CN802

LD810

LD809

LD808

LD807

B7B-PH-SM3-TBT

C807

2.2uF/35V(WT)

+

R802

R801

LCDV

4.7kJ

4.7kJ

LD816

F804

FB804

BLM41PG600SN1

1

Q803

DTC143EE

23

1

Q802

DTC143EE

23

BL_EN

PTZ13B

D807

C826

47uF/16V(WT)

+

S1.8

R812

7.87kF

D802

C806

C813

UDZS5.6BR806 0J

0.1uF

C827

0.1uF

0V:MAX

BRT_VR

0.1uF

R813

2.2kF

C830

0.1uF

9/9

12345678

12345678

12345678

12345678

C

C

C

C

IC802

PQ1CZ21H2ZP

ON/OFF
OADJ
COM
VOUT
VIN

DV25

LD812

C815

470uF/16V(UX)

L804

CDRH127/220uH

5
4
3
2
1

PTZ3.6B

D805

C817

2200pF(B)

R809

3.3kF

R807

3.3kF

C816

0.1uF

+

SFPB76

D804

C818

150uF/25V(WT)

+

F802

S0.7

C819

R810

47kJ

0.1uF

LD813

Q806

DTC143EE

23

POWER_CTL4

B

10uF

100uF/16V(WT)

PV5

L802

LD806

CDRH73/10uH

678

SGS

Q807

123

AV5

C805

10uF

+

C804

47uF/16V(WT)

L806

DV5A

DDD

GD

HAT1025R

45

LD814

DV5

L805

CDRH73/10uH

123

4

CN803

B4B-PH-SM3-TBT

F803

S1.0

USB5

C825

+

L807

CDRH73/10uH

C824

1

LD815

C823

+

C822

NLC322522T-220K

C821

10uF

+

C820

100uF/16V(WT)

A

10uF

47uF/16V(WT)

21

21

21

21

3

3

3

3

POWER

+

C829

150uF/25V(WT)

3

D806 DAN202U

D

D

D

D

4531

GND

OADJ

VOUTVIN

ON/OFF

IC803

12

2

+

C828

150uF/25V(WT)

LD803

LD805

LD801

LD804

PQ20WZ11

1

Q804

23

EMPTY(DTC143EE)

POWER_CTL2

H : ON

L : OFF

Z : OFF

PWGND

R805

EMPTY

FB801

BLM41PG600SN1

123456789

CN801

B12B-PH-SM3-TBT

FB802

BLM41PG600SN1

C

C

C

C

LD811

IC801

FB803

BLM41PG600SN1

101112

H : ON

L : OFF

PQ1CY1032Z

Z : ON

ON/OFF
OADJ
COM
VOUT
VIN

F801

C811

C809

C808

5
4
3
2
1

S1.8

2200pF(B)

470uF/16V(UX)

470uF/16V(UX)

L803

CDRH127/47uH

R811

47kJ

PTZ6.8B

D803

R803

3kF

R804

1kF

C810

0.1uF

+

+

SFPB76

D801

C814

0.1uF

+

C831

2.2uF/35V(WT)

R814

47kJ

R815

10kJ

+

C812

220uF/25V(WT)

B

B

B

B

R808

47kJ

Q805

DTC143EE

1

23

POWER_CTL3

1

Q808

DTC143EE

23

POWER_CTL1

A A

A A

A A

A

87654

87654

87654

87654

LL-T2020 CIRCUIT DIAGRAM

7 – 9

CHAPTER 8. PARTS LAYOUT

MAIN PWB

LL-T2020 PART S LAYOUT

8 – 1

LL-T2020 PART S LAYOUT

8 – 2

POWER SUPPLY PWB

LL-T2020 PART S LAYOUT

8 – 3

q

COPYRIGHT  2002 BY SHARP CORPORATION

All rights reserved.

Printed in Japan.

No part of this publication may be reproduced,

stored in a retrieval system, or transmitted.

In any form or by any means,

electronic, mechanical, photocopying, recording, or otherwise,

without prior written permission of the publisher.

SHARP CORPORATION
Digital Document Systems Group
Products Quality Assurance Department
Yamatokoriyama, Nara 639-1186, Japan

2002 December Printed in Japan

t