LG 42LA6800-CA (CHASSIS:LC33B) Service Manual ▷ View online
LGE TV Research Lab.
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LC33B Adjust Specification
C2-2230
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Reform: 12. 02. 03
LG Electronics
▪ Option selection is only done for models in Non-EU
5.10.2 Method
1) Press ADJ key on the Adj. R/C, then select Country Group Meun
2) Depending on destination, select Country Group Code 05 or Country Group 17 then on
5.10.2 Method
1) Press ADJ key on the Adj. R/C, then select Country Group Meun
2) Depending on destination, select Country Group Code 05 or Country Group 17 then on
the lower Country option, select HK, CA. Selection is done using +,
- or ▶◀
KEY
6. Tool option selection and Ship-out mode and GND/Hi-pot check
6.0 Tool Option selection
▪ Method: Press Adj. key on the Adj. R/C, then select Tool option.
6.1 Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and check that the unit goes to Stand-
by mode.
6.2 GND and Hi-pot auto-check
6.2.1 Method
1) GND & Hi-pot auto-check preparation
- Check that Power Cord is fully inserted to the SET.
1) GND & Hi-pot auto-check preparation
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
2) Perform GND & Hi-pot auto-check
- Unit fully inserted Power cord, Antenna cable and A/V arrive to the auto-check process.
- Unit fully inserted Power cord, Antenna cable and A/V arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX)
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the pallet to move on to next process.
6.2.2 Checkpoint
▪ TEST voltage
- GND: 1.5KV/min at 100mA
LGE TV Research Lab.
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LC33B Adjust Specification
C2-2230
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Reform: 12. 02. 03
LG Electronics
- SIGNAL: 3KV/min at 100mA
▪ TEST time: 1 second
▪ TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND
- Hi-pot TEST = POWER CORD GND & LIVE & NEUTRAL
▪ LEAKAGE CURRENT: At 0.5mArms
▪ TEST time: 1 second
▪ TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND
- Hi-pot TEST = POWER CORD GND & LIVE & NEUTRAL
▪ LEAKAGE CURRENT: At 0.5mArms
7. Audio
No
Item
Min
Typ
Max
Unit
Remark
1. Audio practical max
Output, L/R
(Distortion=10%
max Output)
(Distortion=10%
max Output)
9
10
12
W
EQ Off
AVL Off
Clear Voice
Off
8.10
10.8
Vrms
2. Speaker (8Ω
Impedance)
9
10
12
W
EQ Off
AVL Off
Clear Voice
Off
Off
Measurement condition:
1. RF input: Mono, 1KHz sine wave signal, 100% Modulation
2. CVBS, Component: 1KHz sine wave signal 0.5Vrms
3. RGB PC: 1KHz sine wave signal 0.7Vrms
1. RF input: Mono, 1KHz sine wave signal, 100% Modulation
2. CVBS, Component: 1KHz sine wave signal 0.5Vrms
3. RGB PC: 1KHz sine wave signal 0.7Vrms
8. Preset CH information
If you turn on TV by pushing the ‘POWER ON’ or ‘P-ONLY’ key, TV catch the channel 10
DTV, 1 CADTV, 12 ATV and
2 CATV channels on line condition. Pr.2~4 of CADTV will be updated after changing channel
to CADTV channel 1.
DTV Ch name is displayed below initially, but if you do channel tuning just one time, you can
DTV, 1 CADTV, 12 ATV and
2 CATV channels on line condition. Pr.2~4 of CADTV will be updated after changing channel
to CADTV channel 1.
DTV Ch name is displayed below initially, but if you do channel tuning just one time, you can
see DTV Ch name.
Total = 25(+3) Channels
◈
DTV :
MUX No. in ‘( )’ is used for Hong Kong DTV.
MUX
Pr.
Name
CH information
LGEND
GUMI
Pyung
Taek
LGE TV Research Lab.
Establish: 12. 05. 21
LC33B Adjust Specification
C2-2230
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Reform: 12. 02. 03
LG Electronics
C-15
(I -23
)
1(82)
J2
SD 16:9 576i
O
O
O
2(83)
Interactive
Information
Channel
SD 16:9 576i
O
O
O
3(85)
High Definition
Jade
HD 16:9 1080
i
O
O
O
C-16
(
I -24
)
4(900)
CCTV-1
SD
4:3
576i
X
O
O
5(901)
CCTV-2
SD
4:3
576i
X
O
O
6(902)
CCTV-3(少儿)
SD
4:3
576i
X
O
O
7(903)
CCTV-4(音乐)
SD
4:3
576i
X
O
O
8(904)
BTV-1
SD
4:3
576i
X
O
O
9(905)
CETV-3
SD
4:3
576i
X
O
O
C-20
(I -28)
10(906
)
CCTV–HD(高淸)
HD 16:9 1080
i
O
O
O
◈
CADTV :
CHINA ONLY
MUX Pr.
Name
CH information
LGEND
GUMI
Pyung
Taek
419
(Mhz)
1
CCTV-4
SD
4 : 3
576i
O
X
X
(Pr.2~4 of CADTV will be updated automatically after changing channel to Pr.1)
◈
ATV
Pr
System
Band
Name
CH
Freq.
LGEND
GUMI
Pyung
Taek
1
PAL DK
V/UHF
D-10
C 10
200.25
O
O
O
2
PAL DK
V/UHF
K-36
C 36
695.25
O
O
O
3
PAL
I
V/UHF
I-34
C 34
575.25
O
X
X
4
PAL
I
V/UHF
I-11
C 11
231.25
X
O
O
5
PAL
I
V/UHF
I-41
C 41
631.25
X
O
O
6
PAL
I
CABLE
I-39
S 39
448.25
X
X
X
◈
CATV
Pr
System
Band
Name
CH
Freq.
LGEND
GUMI
Pyung
Taek
1
PAL DK
V/UHF
-
C 02
57.75
O
X
X
2
NTS
C
M
V/UHF
US-04
C 04
67.25
X
O
O
* Checked channels in ND MP Line
- Air: C-20(CCTV-HD), C36
- Cable: CCTV4(419Mhz), C02
- Cable: CCTV4(419Mhz), C02
9. Etc
LGE TV Research Lab.
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LC33B Adjust Specification
C2-2230
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Reform: 12. 02. 03
LG Electronics
Power Status
Main B/D Shipping Condition
AC Swithch condtion
Chassis Module Assembly
ON
N/A
Front Module Assembly
N/A
N/A
Factory incoming
ON
N/A
Final Assembly
ON
N/A
Ship-Out
OFF
N/A
9.1 SET Factoring Condition
No.
Item
Condition
Remark
1.
Power
Off
2.
Volume Level
10
3.
Main Picture Input
DTV
DTV&ATV
4.
Main Last Channel
N.A.
5.
Mute
Off
6.
ARC
16:9(DTV)
7.
PICTURE
Energy Saving
off
3D Settings
3D-on-Start Setting:off
3D Mode: Standard
3D Depth:10
3D Viewpoint:0
3D Colour Correction:on
3D Sound Zooming:on
Normal Image view:off
3D
3D Mode: Standard
3D Depth:10
3D Viewpoint:0
3D Colour Correction:on
3D Sound Zooming:on
Normal Image view:off
3D
Image
Correction:
Left/Right
Disable in 2D Mode
Picture Mode
Eco
Depending
on
Home/Store Selection.
Backlight
100
Contrast
95
Brightness
50
Sharpness
25
Colour
65
Tint
0
Colour Temp
C50