TCL LCD32B67 SERIES User manual

TCLLCD32B67
S
SE ER RV VI IC CE E M MA AN NU UA AL L
LCD TV MONITOR
LCD32B67 SERIES
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS
BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF
THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES,
ERRORS OR OMISSIONS.
MANUFACTUREDATA ：NOV.- 04-2005

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Revision List
Revision Date Modification TPV Model
A00 NOV.- 04-2005 First version release; EJF5MSNDC2TLTM

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TABLE OF CONTENTS
1. SPECIFICATIONS FOR LCD TV...........................................................…………...………….. 2-9
1-1 GENERAL SPECIFICATIONS …................................................…………....……………….. 2-9
1-2 LCD TV DESCRIPTION ..................................................…………...……………………….. 9
2. PRECAUTION AND NOTICES .................................................……………..………………… 10
2-1 ASSEMBLY PRECAUTION ..........................................................…………..………………. 10
2-2 OPERATIONG PRECAUTION .....................................................…………..………………. 10
2-3 STORAGE PRECAUTION …........................................................…………..………………. 10
2-4 HIGH VOLTAGE WARNING .......................................................…………...……………….. 10
3. INPUT/OUTPUT SPECIFICATION..............................………………......................………….. 11-12
3-1 CONNECTOR DESCRIPTION……………………………………………………………………. 11
3-2 FACTORY PRESET DISPLAY MODES………………..…..……………………………………. 12
4. ADJUSTMENT.........................................................................……………...……….…………. 13
4-1 ADJUSTMENT CONTROL FUNCTION..............................................………...……………. 13
4-2 ADJUSTMENTS METHOD .............................................................…………...……………. 13
4-3 FRONT PANEL CONTROL KNOBS ................................................…………..……………. 13
5. REPAIR FLOW CHART................................................................………….....……………….. 14-17
6. WHITE-BALANCE, LUMINANCE ADJUSTMENT……………………………………..………… 18-19
7. MECHANICAL INSTRUCTIONS…………………………………………………………………… 20-24
8. SOFTWARE FLOW CHART………………………………………………………..….………… 24-26
9. PARTS LISTING OF CABINET(BOM)…………………………………………..…….………….. 27-54
10. PCB LAYOUT..………………………………………..........................……………...…………… 55-60
10-1 MAIN BOARD PCB LAYOUT.………………………………………………………………….. 55
10-2 IO/TUNER BOARD……………………………………………………………………………… 57
10-3 ADAPTER BOARD PCB LAYOUT……………………………………………………………… 58
10-4 KEY BOARD PCB LAYOUT……………………………………………………………………. 60
10-5 IR BOARD……………………………………………………………………………………….. 60
10-6 PHONE JACK BOARD…………………………………………………………………………. 60
11. BLOCK DIAGRAM ........................................................………………………….……………… 61
11-1 MAIN BOARD BLOCK DIAGRAM……………………………………………………………… 61
11-2 MECHANICAL OF CABINET FRONT DIS-ASSEMBLY…………………………………… 62
12. SCHEMATIC DIAGRAM……………………………………………………………………………. 63
12-1 MAIN BOARD…………………………………………………………………………………….. 63
12-2 ADAPTER BOARD………………………………………………………………………………. 73
12-3 IO/TUNER BOARD………………………………………………………………………………. 75

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1. SPECIFICATIONS FOR LCD TV
1-1 GENERAL SPECIFICATIONS
Items Specification
Screen Size 32” TFT-LCD Panel (CMO)
LCD Panel Resolution 1366×768 (60Hz)
TV Tuning System PAL B/G、D/K、I、NTSC M,SECOM
TV Function Sound System NICAM 、A2、BTSC
AV1 RCA ×1 Audio L/R×1
RCA ×1
AV2 S-Video×1 Audio L/R×1 (Share)
Component Y,Pb/Cb,Pr/Cr x 1 Audio L/R ×1
RF RF×1
Video Inputs
HDMI HDMI×1
Signal Input Digital:DVI
Signal Input Analog: D-Sub 15 pin (detachable cable)
PnP compatibility DDC 2B
Input frequency Analog: FH: 31.5KHz to 48KHz FV: 60Hz to 75Hz
Recommended 1366 x 768 (60Hz)
PC Input
Input Audio Headphone Mini-jack for stereo (3.5ø)
Video Output Output TV/AV1/AV2 Video output (RCA)
Speaker (built-in): Two 10 watt speakers
Headphone Mini-jack for stereo (3.5ø)
Audio Output Audio Output: L / R
Line Output (RCA L/R)
Other Function PIP
OSD language Simplified Chinese / English
Table Stand Included
Power Supply AC100V~240V, 50/60Hz
Power Power Consumption <140 W
Temperature 0 °C ~ + 40 °C
Storing temperature - 25 °C ~ + 60 °C
Environment
Operating Humidity 10% to 85% non-condensing
720 x 400 (70Hz)
640 x 480 (60/75Hz)
800 x 600 (60/75Hz)
1024 x 768 (60Hz)
VGA/DVI support
form
1280 x 720(60Hz)
Dimension W x H x D (with chassis and cabinet) 696 x 443 x 250 (mm)
Weight (net) Kg (w/o Accessories) 17Kg
Accessories Remote Controller, Batteries (AAA×2), AC Power Cord, D-sub Signal Cable,
Audio Cable, User’s Manual

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TO USE THE MENUS
1. Press the MENU button repeatedly to display each menu
2. Use the cursor up/down to select a menu item or adjust the setting of Menu item.
3. Use the cursor left/right to enter a submenu or enable the function.
4. Press the MENU button to exit the menu.
MAIN MENU
Press the MENU button into the main OSD (On Screen Display). Adjust item include VIDEO ADJUST, AUDIO
ADJUST, CH SETTING, COLOR, LANGUAGE, SCREEN MODE, SLEEP TIMER, RESET.
Video Adjust
1: Contrast, Brightness and Saturation are adjusted from 0 to 100.
2: TINT User can adjust the favorable tint while the TV system is NTSC,PAL system can’t support.The adjustment
range is 0 to 100.
3: Black Level is adjusted from 0 to 100.
4: Sharpness is adjusted from -5 to+5.
You can adjust picture contrast, brightness, saturation, tint, black level and sharpness to the levels you prefer.
5: Blue Screen for when no video input screen will be blue or blank. If it’s ON, the screen will be in blue. If it’s OFF,
the screen will be blank. Preset is ON.
6: 3D Mute When the signal is not well,user can start up the function.
7. Reset is set up to default value.

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When adjust any item sub-OSD will show up like this.
Audio Adjust
1. Volume is adjusted from 0 to 100.
2. Bourdon is is adjusted from 0 to 100.
3. Alt is adjusted from 0 to 100.
4. BBE Vi VA ON or OFF is for your alternative (when BBE is started , BOURDON and ALT can’t be adjusted).
5. RESET is set up to default value.
You can adjust picture Volume, Bass and Treble to the levels you prefer.
When adjust any item sub-OSD will show up like this.
PIP
1. PIP function is turn on /off small picture
2. Position is move for small picture
3. SIZE big picture or small picture,which is for your choice
4. Source is choose from TV /AV1/AV2/S VIDEO
5. Audio select is choose from MAIN/SUB

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Sleep Timer is for set a time period after which the TV should switch itself to standby. The counter runs from 30 > 60
> 90 > 120 minutes.
The timer begins to count down from the number of minutes selected after the display has disappeared.
Note: To view the remaining time, press the SLEEP button once. To cancel the sleep time, repeatedly press the
SLEEP button until--- APPEARS. If you turn the TV off after setting the sleep time, the setting will be erased. Set it
again.
Set up
1. Video System is used for TV broadcasting system,AUTO/NTSC/PAL.
2. Audio System is used for the TV broadcasting audio system, DK system is widely used in China mainland.
3. CH SEARCH Is used for search all the TV programs and memorized them into the interior stock.
There are 120 channels in total for TV.If the remote control is pressed beyond 120 channels,the channel
will be returned back to the previous one automatically.
4. Manu Scan for search TV Program channel by channel.
After scan a new program, press MENU key, it will be automatically saved in the last channel.
5. Frequency tuning Tuning of the frequency for the channel so as to get the better effect.
6. CH SWAP save the location of current channel and destination channel for each other .

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7. CH SKIP if the setting is ON,the channel is shielded. Pressing the figure key will be entered
into;otherwise,pressing the program key(up and down) is useless.If the channel is to be resumed, it must be
set OFF.
PC Adjust
1. Auto tune is the function auto-sizing for VGA input.
2. Contrast, Brightness, Focus, Clock, H Position, V Position and Color are the functions for PC adjustment.
Color for you can adjust the color temperature you prefer.

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USE THE REMOTE CONTROL
POWER
Press to turn on/off the TV.
The TV is never completely
powered off unless it is
physically unplugged or or
turn off the power switch on
the side.
Video/S-Video
Select your input source to
VIDEO or S-VIDEO
Component/T-LINE
Select your input source to
Component or T-LINE
VGA/DVI
Select your input source to
VGA or DVI
.
TV
Select your input source to
TV
0~9/100 Digit buttons
To select a TV channel
SLEEP
With this key you can set a
time period after which the
TV should switch itself to
standby. Press the key
repeatedly to select the
number of minutes. The
counter runs from
0,15,30,45,60,90,120
minutes. The timer begins
to count down from the
number of minutes
selected after the display
has disappeared.
PIP
Select PIP on/off to display
PC and other sources at
the same time((This
function will be in effect
only during the VGA and
DVI input stage).
VOL
Press ▲or▼to adjust the
volume.
CH
Press ▲or ▼to browse
through the TV channels
which are not erased.
DISPLAY
(1) Display Channel number
when use RF input.
(2) Display input source
when use other input
except TV RF input.
MUTE
Temporarily interrupt the
sound or restore it.
RECALL
To display the previously
selected TV channel.
EFFECT
You can choose your prefer
mode of User 、STEREO 、
CINEMA、NEWS、DDAS、BBE
ViVA
NICAM
To select Mono /Stereo/Sound
A /Sound B/Sound AB from
TV RF input.
WIDE
Includes 3 modes: Press
repeatedly to select
4:3 /16:9 /
16:9 non-Linear
SWAP
Not support.
MENU
Press repeatedly to display OSD menu.
SOURCE
Press this button to display selected source, press ▲
button to select.
OK
Press the button to confirm selection.
MENU Left/Right button
use this button to confirm selection or adjust the desired
parameter; otherwise, to increase/decrease the volume.
Menu Up/Down button
When in menu mode, use this button to select to the
up/down; otherwise, to change TV channels

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1. Input Source Select:
Press repeatedly Source button to select TV, AV1, AV2, S-VIDEO, COMPONENT or PC mode.
2. Input Video Signal:
S-Video level 0.7Vpp: NTSC / PAL / SECAM
Composite Video level 0.7Vpp: NTSC / PAL / SECAM
Video signal termination impedance 75 Ohm
3. Scanning Frequencies:
Horizontal: 31.5 KHz ~ 48.36 KHz
Vertical: 60 Hz ~75 Hz
4. PC factory Preset Timing: 7
Follow VESA standard timing.
Input signal tolerance : H tolerance ± 1 K, V tolerance ±1 Hz
5. Power Source:
Switching Mode Power Supply
AC 100 ~ 240 V ± 5%, 50/60 ± 3Hz Universal Type
6. Operating Temperature: + 0°C ~ + 40°C
Storage Temperature: - 25°C ~ + 60°C
7. Humidity:
Operating: 10% ± 85% RH
Storage : 5% ~ 85% RH
8. Weight for packed: 20.5 Kg
9. External Connection:
RF Input Connector, 15Pin D-type Connector, 24Pin DVI Connector , AC power-Cord
10. View Angle: 176°(Horizontal) / 176°(Vertical)
12. Plug and Play: VESA DDC2B
13. Power saving: VESA DPMS
1-2 LCD TV DESCRIPTION
The LCD TV will contain a main board (include audio), a switching power board, an IR board, a function
keyboard, a DPF Board and an Ear phone board. The main board and power board will house the flat panel to
control logic I2C bus, DDC, brightness control logic for LCD panel, DC-DC conversion to supply the
appropriate power to the whole board and transmitting TTL level signals into LCD Module to drive the LCD
display circuit.
The inverter board will drive the sixteen CCFLs (Cold Cathode Fluorescent Tube).The switching power
board will provides the power ON/OFF to control the TV and control LED indicator for DPMS.
The function keyboard and Remote Control will provide the OSD control signal to the Main Board.