LG 32LX3DC-UA32 / LX3DCS-UA (CHASSIS:AL-04CA) Service Manual ▷ View online
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1. Application Object
This instruction is for the application to the LCD TV.
2. Designation.
2.1 As this chassis is a non-charging type of chassis for
insulation of the power supply part, it may not use an
insulation type of transformer but it is better to adjust
after operating an insulation type of transformer
between the power supply line and the input side of
chassis.
2.2 Adjustment must be done according to accurate order.
However, order may be changed considering mass
production.
2.3 Adjustment must be done in environment of ambient
temperature of 25
5°C, RH 65
10% unless
specially designated.
2.4 For adjustment, input voltage of the receiver must be
maintained at 110V, 60Hz.
2.5 The receiver must be maintained in preliminary
operation status for about 15 minutes before
adjustment unless specially designated.
Perform preliminary operation after receiving
100% White Pattern (06CH).
(Or 3. White Pattern status of Ex-Adjust)
White Pattern entry method
A) Enter into Ez-Adjust by pressing the ADJ key on
the adjustment R/C.
B) 100% FULL WHITE PATTERN appears if
pressing the OK (
) key after selecting the
3.WHITE PATTERN with the CH + / - KEY.
* It is possible to heat run the set without a
separate signal generator in this mode.
separate signal generator in this mode.
Caution : Care must be taken as afterimage
phenomena may occur about the black level
part of screen If leaving pause image turned on
for more than 20 minutes (especially inner digital
pattern (13 CH), Cross Hatch Pattern (09CH)
with significant black/white contrast).
phenomena may occur about the black level
part of screen If leaving pause image turned on
for more than 20 minutes (especially inner digital
pattern (13 CH), Cross Hatch Pattern (09CH)
with significant black/white contrast).
3. Total Adjustment
3.1 EDID (Extended Display Identification Data ) / DDC
(Display Data Channel) download
3.1.1 Summary
: This function was created by VESA and is intended to
realize "Plug and Play" that the computer automatically
communicates with the monitor through mutual change
of information and re-configure user environment so
than the user can immediately use the computer
without providing direct command to the PC or
monitor.
3.2 AD9883A-Set Adjustment
3.2.1 Summary
: The AD9883A-Set Adjust is function that the A/D
converter automatically sets up optimum blacklevel
and gain and compensate RGB deviation.
- DVI EDID Data
- RGB EDID Data
ADJUSTMENT INSTRUCTION
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 FF FF FF FF FF FF 00 1E 6D 01 01 01 01 01 01
10 03 0E 01 03 98 45 27 96 08 E8 AA A1 57 49 9C 25
20 10 48 4B 4F CE 00 31 4F 31 4F 3B C0 45 40 61 45
30 01 01 01 01 01 40 C3 1E 00 20 41 00 20 30 10 60
40 13 00 B9 88 21 00 00 1E 00 00 00 FC 00 20 20 20
50 20 20 20 20 20 20 20 20 20 0A 00 00 00 FD 00 38
60 4B 1E 3E 08 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 33 32 4C 58 33 44 43 20 20 20 20 20 20 00 5C
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 FF FF FF FF FF FF 00 1E 6D 01 01 01 01 01 01
10 03 0E 01 03 18 45 27 96 08 E8 AA A1 57 49 9C 25
20 10 48 4B AF CE 00 31 4A 31 4F 3B C0 45 40 61 4F
30 01 01 01 01 01 40 C3 1E 00 20 41 00 20 30 10 60
40 13 00 B9 88 21 00 00 1E 00 00 00 FC 00 20 20 20
50 20 20 20 20 20 20 20 20 20 0A 00 00 00 FD 00 38
60 4B 1E 3E 08 00 0A 20 20 20 20 20 20 00 00 00 FC
70 00 33 32 4C 58 33 44 43 20 20 20 20 20 20 00 D2
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3.2.2 Adjustment Method
A) Enter the 100% Vertical Color Bar Pattern
(TVBAR_100) of the 720P Mode supported for entry
of component and select entry selection to
Component1 or Component2 and then select image
to 'Normal'.
of component and select entry selection to
Component1 or Component2 and then select image
to 'Normal'.
B) After waiting for more than a second after receipt of
signal, enter into 'Ez?Adjust' by pressing the ADJ Key
on the Adjustment R/C. Adjustment is automatically
done if pressing the (+) key after selecting the '1.
AD9883A-Set'.
on the Adjustment R/C. Adjustment is automatically
done if pressing the (+) key after selecting the '1.
AD9883A-Set'.
C) If adjustment is normally completed, 'AD9883£
≠
Set'
message is displayed, and if not normally completed,
'AD9883A Setup Error' message is displayed.
'AD9883A Setup Error' message is displayed.
D) If adjustment is completed, exit the adjustment mode
by pressing the ADJ key.
3.3 Color adjustment of main/subsidiary part
Color adjustment of main/subsidiary part is intended to
reduce color difference of the main/subsidiary part in the
PIP/POP/SPLIT Screen.
reduce color difference of the main/subsidiary part in the
PIP/POP/SPLIT Screen.
A) After entering inner signal, enter into the 'Ez?Adjust'
by pressing the ADJ key of the remote control for
adjustment and select the '2.VPX3226' and enter into
adjustment and select the '2.VPX3226' and enter into
the Adjustment Mode by pressing the right key (
).
B) The screen automatically becomes a TV 6CH SPLIT
Screen if entering into the Adjustment and a window
appears as below.
appears as below.
< Screen Adjustment Command Table. (RS-232) >
C) Firstly adjust '1.Contrast (Main)' so that figure of "US
6CH" character of the left main screen is shown
mostly clearly and vividly (so that saturation is not
done) and set the '2.Contrast(Sub)' to same value. In
this case, adjust it by using the volume +/- key.
mostly clearly and vividly (so that saturation is not
done) and set the '2.Contrast(Sub)' to same value. In
this case, adjust it by using the volume +/- key.
D) If adjustment is completed, exit the Adjustment Mode
by pressing the ADJ key.
<Adjustment Pattern : 720P Vertical Color Bar>
VPX3226
1. Contrast(MAIN)
1. Contrast(MAIN)
31
2. Contrast(Sub)
31
US 6CH
US 6CH
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SVC REMOCON
NO KEY
FUNTION
REAMARK
1
POWER
2
POWER ON
3
MUTE
4
P-CHECK
5
S-CHECK
6
ARC
7
CAPTION
8
TXT
9
TV/AV
10
TURBO SOUND
11
TURBO PICTURE
12
IN-START
13
ADJ
14
MPX
15
EXIT
16
APC(PSM)
17
ASC(SSM)
18
MULTIMIDIA
19
FRONT-AV
20
CH
21
VOL
22
ENTER
23
PIP CH-(OP1)
24
PIP CH+(OP2)
25
PIP SWAP(OP3)
26
PIP INPUT(OP4)
27
EYE
28
MENU
29
IN-STOP
30
STILL
31
TIME
32
SIZE
33
MULTI PIP
34
POSITION
35
MODE
36
PIP
37
TILT
38
0~9
To turn the TV on or off
To turn the TV on automatically if the power is supplied to the TV. (Use the
POWER key to deactivate): It should be deactivated when delivered.
To activate the mute function.
To check TV screen image easily.
To check TV screen sound easily
To select size of the main screen (Normal, Spectacle, Wide or Zoom)
Switch to closed caption broadcasting
To toggle on/off the teletext mode
To select an external input for the TV screen
To start turbo sound
To start turbo picture
To enter adjustment mode when manufacturing the TV sets.
To adjust the screen voltage (automatic):
In-start
To turn the TV on automatically if the power is supplied to the TV. (Use the
POWER key to deactivate): It should be deactivated when delivered.
To activate the mute function.
To check TV screen image easily.
To check TV screen sound easily
To select size of the main screen (Normal, Spectacle, Wide or Zoom)
Switch to closed caption broadcasting
To toggle on/off the teletext mode
To select an external input for the TV screen
To start turbo sound
To start turbo picture
To enter adjustment mode when manufacturing the TV sets.
To adjust the screen voltage (automatic):
In-start
mute
Adjust
AV(Enter into W/B adjustment mode)
W/B adjustment (automatic):
After adjusting the screen W/B adjustment Exit two times (Adjustment completed)
To enter into the adjustment mode. To adjust horizontal line and sub-brightness.
To select the multiple sound mode (Mono, Stereo or Foreign language)
To release the adjustment mode
To easily adjust the screen according to surrounding brightness
To easily adjust sound according to the program type
To check component input
To check the front AV
To move channel up/down or to select a function displayed on the screen.
To adjust the volume or accurately control a specific function.
To set a specific function or complete setting.
To move the channel down in the PIP screen.
To use as a red key in the teletext mode
To move the channel in the PIP screen
To use as a green key in the teletext mode
To switch between the main and sub screens
To use as a yellow key in the teletext mode
To select the input status in the PIP screen
To use as a blue key in the teletext mode
To set a function that will automatically adjust screen status to match
the surrounding brightness so natural color can be displayed.
To select the functions such as video, voice, function or channel.
To set the delivery condition status after manufacturing the TV set.
To halt the main screen in the normal mode, or the sub screen at the PIP screen.
Used as a hold key in the teletext mode (Page updating is stopped.)
Displays the teletext time in the normal mode
Enables to select the sub code in the teletext mode
Used as the size key in the PIP screen in the normal mode
Used as the size key in the teletext mode
Used as the index key in the teletext mode (Top index will be
displayed if it is the top text.)
To select the position of the PIP screen in the normal mode
Used as the update key in the teletext mode (Text will be
displayed if the current page is updated.)
Used as Mode in the teletext mode
To select the simultaneous screen
To adjust screen tilt
To manually select the channel.
After adjusting the screen W/B adjustment Exit two times (Adjustment completed)
To enter into the adjustment mode. To adjust horizontal line and sub-brightness.
To select the multiple sound mode (Mono, Stereo or Foreign language)
To release the adjustment mode
To easily adjust the screen according to surrounding brightness
To easily adjust sound according to the program type
To check component input
To check the front AV
To move channel up/down or to select a function displayed on the screen.
To adjust the volume or accurately control a specific function.
To set a specific function or complete setting.
To move the channel down in the PIP screen.
To use as a red key in the teletext mode
To move the channel in the PIP screen
To use as a green key in the teletext mode
To switch between the main and sub screens
To use as a yellow key in the teletext mode
To select the input status in the PIP screen
To use as a blue key in the teletext mode
To set a function that will automatically adjust screen status to match
the surrounding brightness so natural color can be displayed.
To select the functions such as video, voice, function or channel.
To set the delivery condition status after manufacturing the TV set.
To halt the main screen in the normal mode, or the sub screen at the PIP screen.
Used as a hold key in the teletext mode (Page updating is stopped.)
Displays the teletext time in the normal mode
Enables to select the sub code in the teletext mode
Used as the size key in the PIP screen in the normal mode
Used as the size key in the teletext mode
Used as the index key in the teletext mode (Top index will be
displayed if it is the top text.)
To select the position of the PIP screen in the normal mode
Used as the update key in the teletext mode (Text will be
displayed if the current page is updated.)
Used as Mode in the teletext mode
To select the simultaneous screen
To adjust screen tilt
To manually select the channel.
Shortcut keys
Shortcut keys
Shortcut keys
Use the AV
key to enter
the screen
W/B
adjustment
mode.
key to enter
the screen
W/B
adjustment
mode.
Shortcut keys
Shortcut keys
Shortcut keys
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TROUBLESHOOTING
No power
Connector connection
Replace Power_board
Replace Power_board
Power On key
OK
Power supply Check
connector connection status.
Stand voltage check:
D-board P810 '+5V-STDBY
Stand voltage check:
A-board P818 #5Pin 5V
Check 15V or 5V
of Lips
Connection
of power supply part :
Check wiring status of the 13-pin
connector
Connection
of power supply part :
Check wiring status of the 15-pin
connector
Power on signal level :
D-board P811 'power0' 3.3V
D_board main voltage:
P810 '+3.3V', '+6V-P',
'12V-P', '+30V-P'
Fail
Fail
Fail
Fail
Fail
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Replace Power_board
Replace D_board
MICOM IC803
MICOM IC803
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