TCL LCD-27VSE User manual

27’’ LCD TV Color Monitor TCLLCD-27VSE
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Service
Service
Service
Horizontal Frequency
31.5-60kHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
8.1 Main Board.……….......................................60
8.2 Tuner Board……………………………………..62
8.3 Power Board……..……..............................64
8.4 Key Board…...................................67
8.5 IR Board …................….......................67
8.6 DC-DC Board....…………...............................68
8.7 Earphone Board..…….....…..........................69
9. Block Diagram.…….........................................70
9.1 Main Board.………………………………..….70
9.2 Power Board…..…....………………….......71
9.3 Exploded View..……….....................…..72
10. Schematic Diagram………………………...73
10.1 Main Board………..………………………..73
10.2 Power Board.....…...................................85
10.3 Tuner Board...…….......................................87
10.4 Key Board……………….………………….90
10.5 Ear
p
hone Board...…….................................91
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
1. Monitor Specification..............................………........3
2. Operating Instructions…………………….……….......4
2.1 The Use Of Remote Control..……………...................4
2.2 The Use Of Teletext……..........…...........…...........5
2.3 Front Panel Control Knobs.…............……...............6
2.4 OSD Operations.………........................…............7
2.5 How To Connect ……..............……………............14
3 Input/Output Specification…………..........................17
3.1 Input Signal Connector……..........................17
3.2 RGB Input Signal Timing.....……......................18
4. Mechanical Instructions…………………..................19
5. Repair Flow Chart.……………………………….....24
6. White Balance Luminance Adjustment….…........28
7.BOM List..…………………………....….…….....32
8. PCB Layout.………………………………....….......60

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Revision List
Version Release Date Revision Instructions TPV Model
A00 Jul.-3-2006 Initial Release E276MTNBD1TL2P

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1. Monitor Specifications
Items Specification
Panel Type 27” CMO V270B1-L01 panel
Driver Element a-si TFT active matrix
Aspect Ratio 16: 9
Pixel Number 1366 x 768
Active Display Area H x V 596.259mmx335.232mm
Pixel Pitch 0. 4365mm(H) x 0.4365mm(V)
Contrast Ratio 1000:1 (type)
Brightness 550:1 (type)
Response Time 8ms
View Angle (CR≥20) H: 176/V: 176
Display colors 16.7 million
Lamp Type/Life 60000 hr (type)
LCD Panel
Color Temperature Cool / Warm
Video Inputs AV、S-VIDEO, Component, Scart(RGB + Composite),HDMI
Audio Output Audio Output: L / R Headphone Mini-jack for stereo (3.5ø)
OSD language (default) English
Table Stand Included
Wall Mount VESA 100 x 100 mm
Power Supply AC100V~240V, 50/60Hz
Power Power Consumption <150W
Panel Tilt Forwards/Backwards/Rotation -4°/ +18° / ± 35°
Operating Tem. + 0 °C ~ + 40 °C
Storage Tem. - 25 °C ~ + 60 °C
Operating humidity 10% ~ 85%
Environment
Storage humidity 5% ~ 85%

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2. Operations Instructions
2.1 The Use Of Remote Control

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2.2 The Use Of Teletext

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2.3 Front Panel Control Knobs
Power Key : Press to turn on or off the TV.
MENU Key : Press to show the OSD menu and exit OSD menu at the TV.
Down / Up Key : Press to perform select function and channel.
-/ + Key : Press to confirm your function selection and adjustment.
Source Key : Press to select your input source.
There is a wide range of video and audio equipment that can be connected to your TV. The following connection
diagrams show you how to connect them.

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2.4 OSD Operations

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2.5 How To Connect
Remove the back plate at the back of the TV as shown on the illustration opposite. Lay the LCD TV with the screen
down on a table, as it will be easier to connect your peripheral equipment. Please take your precautions not to
damage the screen.
AV sockets (Located at the back of the TV set, on the leftside)
To display images from the connected appliance, select the input source by pressing the TV/VIDEO button on the
remote control. For some appliances, connected to the SCART socket, this selection is made automatically.

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HEADPHONE SOCKET (LOCATED AT THE BACK OF THE TV SET, ON THE RIGHTSIDE)
When headphones are connected, the sound of TV set is cut.
Adjust headphones volume level by using + / - buttons on the remote control.
To switch off the sound of the headphone press the button on the remote control.
HDMI SOCKET (High-Definition Multimedia Interface)
(Located At The Back Of The TV Set, Near The Power Input Socket)
This socket allows the connection to all appliances fitted with an HDMI socket.
The standard HDMI allows a digital transmisson of video and audio data using only one connector.
It gives you the possibility to obtain very high quality images.
In this case it is necessary to use an HDMI connecting cable.
Make sure the appliance output is set to be HDMI output.
To display images from the connected appliance, select the input source (HDMI) by pressing the TV/VIDEO button
on the remote control.
PC IN SOCKET (Located At The Back Of The TV Set, Near The HDMI Socket)
Allows to connect a PC to the TV set

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Connect the PC IN D-sub socket located at the back of the TV set to the output of PC equipment through a mini
D-sub 15 pin cable. Connect the stereo PC IN audio jack located at the back of the TV set (near the D-sub socket) to
the audio output socket on the computer through an audio cable. To display images from the connected appliance,
select the input source (PC) by pressing the TV/VIDEO button on the remote control.

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3. Input/Output Specification
3.1 Input Signal connector
This procedure gives you instructions for installing and using the LCD TV display.
Lay the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord
must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical
conduct ground. If the AC outlet in your location does not have provisions for the grounded type plug, the installer
should attach the proper adapter to ensure a safe ground potential.
Connect the 15-pin D-SUB color display shielded signal cable to your signal system device and lock both screws on
the connector to ensure firm grounding. The connector information is as follow:
1
6
11 15
5
10
15 - Pin Color Display Signal Cable
Pin No. Description
1 Red Video
2 Green Video
3 Blue Video
4 N/C
5 GROUND
6 Red Video Ground
7 Green Video Ground
8 Blue Video Ground
9 No Pin
10 Sync. Ground
11 N/C
12 Serial Data for DDC
13 Horizontal Sync.
14 Vertical Sync.
15 Serial Clock for DDC
Apply power to the display by turning the power switch to the "ON" position and allow about ten seconds for Panel
warm-up. The Power-On indicator lights "GREEN" when the display is on.
With proper signals feed to the display, a pattern or data should appear on the screen, adjust the brightness and
contrast to the most pleasing display, or press auto-adjust to get the best picture-quality.
This TV (with PC function) has power saving function following the VESA DPMS. Be sure to connect the signal
cable to the PC.
If your TV requires service, it must be returned with the power cord.

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3.2 RGB Input Signal Timing
Sync Polarity Presence Screen Mode
Dots×Lines
Horizontal
Frequency
(KHz)
Vertical
Frequency
(Hz) Horizontal Vertical Horizontal Vertical Normal
(4:3) FULL (16:9)
720×400 31.47 70.08 NEG POS YES YES YES YES
640×480 31.50 60.00 NEG NEG YES YES YES YES
640×480 37.50 75.00 NEG NEG YES YES YES YES
640×480 37.86 72.81 NEG NEG YES YES YES YES
800×600 37.90 60.32 NEG NEG YES YES YES YES
800×600 46.90 75.00 NEG NEG YES YES YES YES
800×600 48.08 72.19 NEG NEG YES YES YES YES
1024×768 48.40 60.00 YES YES YES YES YES YES
1280×768 47.7 60 YES YES YES YES YES YES

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4. Mechanical Instructions
Step Figure Description
Preparation
Lay the
LCD-TV on a
flat, soft and
clean surface.
Remove
the base
and stand
Remove the
hinge cover
and the
screws on the
stand to
remove the
stand and
base.
Remove
the back
cover
Remove the
seven screws
mark in red to
remove the
back cover.

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Remove
The hinge
plate
Remove the
six screws to
remove the
hinge plate
1、Remove the
eleven screws
Remove
the shield
2.Push the
shield as the
arrowhead
direction.