LG 32LT777H (CHASSIS:LA2FZ) Service Manual ▷ View online
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5.1.3. Equipment connection
5.1.4. Adjustment Command (Protocol)
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
Explanation
CMD
DATA
ID
Wb
00
00
Begin White Balance adj.
Wb
00
ff
End White Balance adj.
(internal pattern disappears )
(2) Adjustment Map
Adj. item Command
(lower caseASCII)
Data Range
(Hex.)
CMD1
CMD2
MIN
MAX
Cool
R Gain
j
g
00
C0
G Gain
j
h
00
C0
B Gain
j
i
00
C0
Medium
R Gain
j
a
00
C0
G Gain
j
b
00
C0
B Gain
j
c
00
C0
Warm
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
5.1.5. Adjustment method
5.1.5.1 Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.1.6. Reference (White Balance Adj. coordinate and
color temperature)
(1) Luminance: 204 Gray, 80IRE
(2) Standard color coordinate and temperature using CS-1000
(over 26 inch)
5.1.7. Reference (White Balance Adj. coordinate and
color temperature)
※
LT Series (don’t use G Gain fix(172))
▪ Luminance: 204 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Coordinate
Temp
△
uv
X
Y
Cool
0.269
0.273
13,000K
0.0000
Medium
0.285
0.293
9,300K
0.0000
Warm
0.313
0.329
6,500K
0.0000
▪ Standard color coordinate and temperature using
CA-210(CH 14)
(1) LGD
Mode
Coordinate
Temp
△
uv
X
Y
Cool
0.269±0.002
0.273±0.002
13,000K
0.0000
Medium
0.285±0.002
0.293±0.002
9,300K
0.0000
Warm
0.313±0.002
0.329±0.002
6,500K
0.0000
(2) O/S Module(AUO, CMI, Sharp,IPS…)
Mode
Coordinate
Temp
△
uv
X
Y
Cool
0.271±0.002
0.276±0.002
13,000K
0.0000
Medium
0.287±0.002
0.296±0.002
9,300K
0.0000
Warm
0.315±0.002
0.332±0.002
6,500K
0.0000
▪ Standard color coordinate and temperature using
CA-210(CH-14) – by aging time
(1) Edge LED models (applied only LGD Module) in LGERS
GP4
Aging time
(Min)
Cool
Medium
Warm
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
279
288
295
308
319
338
2
3-5
278
286
294
306
318
336
3
6-9
277
285
293
305
317
335
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-149
270
274
286
294
310
324
9
Over 150
269
273
285
293
309
323
Color Analyzer
Computer
Pattern Generator
※
Signal Source
Probe
RS-232C
RS-232C
RS-232C
※
If TV internal pattern is used, not needed
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5.2. Tool Option selection
▪ Method: Press Adj. key on the Adj. R/C, then select Tool
option
Model
32LT777H-UA
(LGD)
37LT777H-UA 42LT777H-UA 47LT777H-UA
tool option 1
4100
5
6
7
tool option 2
8389
8389
8389
8389
tool option 3
9229
9229
9229
9229
tool option 4
13006
13006
13004
13004
tool option 5
4315
4187
4187
4187
tool option 6
1305
1305
1305
1305
Tool option 7
128
128
4224
4224
Commercial
Tool Option
1555
1555
1555
1555
Country Group
02
02
02
02
● Tool option can be reconstructed by Software
5.3. EYE-Q Check
Step 1) Turn on the TV..
Step 2) Press 'EYE button' on the adjustment remote-
controller.
Step 3) Cover 'Eye Q sensor' on the front of set with your
hands, hold it for 6 seconds.
Step 4) Check "the Sensor Data" on the screen, make certain
that Data is below 10. If Data isn’t below 10 in 6
seconds, Eye Q sensor would be bad. You should
change Eye Q sensor.
Step 5) Uncover your hands from Eye Q sensor, hold it for 6
seconds.
Step 6) Check "Back Light(xxx)" on the screen, check data
increase . You should change Eye Q sensor.
5.4. Wi-Fi MAC Address Check
5.4.1. Using RS232 Command
Command
Set ACK
Transmission
[A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
5.4.2. Check the menu on in-start
5.5. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Installer menu -> 119 -> 253 -> Menu
Step 3) Select Start Connection Button in Network Connection.
<Step 2>
<Step 5>
<Step 6>
<Step 3>
<Step 4>
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Step 4) If the system finds any AP like blow PIC, it is working
well
5.6. HDMI ARC Function Inspection
5.6.1. Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
5.6.2. Test method
(1) Insert the HDMI Cable to the HDMI ARC port from the
master equipment (HDMI1)
(2) Check the sound from the TV Set
(3) Check the Sound from the Speaker or using AV & Optic
TEST program (It’s connected to MSHG-600)
* Remark: Inspect in Power Only Mode and check SW version
in a master equipment
6. Check Commercial features
Model info.
Commercial Feature
Name
inch
IR Out
DC
Power
Out
(12V)
Ext
SPK
Out
RJP
(RJ-45
inter-
face)
Pro:Idiom
LT770H-UA 32/37/42/47/55
O
O
O
O
O
6.1. External SPK Out
6.1.1. Equipment & Condition
▪ Jig (Speaker out JIG) or Oscilloscope
▪ Power only mode
6.1.2. Check the speaker out
1) Connect the External Speaker : check the sound
Connect oscilloscope, you can see this waveform
6.2. IR Out and DC Power Outlet (12V)
6.2.1. Equipment & Condition
▪ Jig (commercial check JIG)
▪ Special 232C Cable for commercial check Jig
▪ Power only mode
▪ PCB Mode (installer menu -> 118 -> 9 )
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6.2.2. Check the power out & IR out – commercial
check jig
(1) Connect each other RS232c port on the Commercial Check
JIG
(2) Press RED Color Button on SVC Remote-controller in
power only mode (or PCB Mode)
(3) Check the LED of jig board
- +12V LED (OK condition: Turn On)
- IR LED (OK condition: blinking)
6.2.3. Check the power out & IR out – mini jig
(1) Connect mini jig on RS232c port
(2) Press RED Color Button on SVC Remote-controller in
power only mode (or PCB Mode)
(3) Check the LED of mini jig
6.2.4. Check the power out & IR out – New jig
(1) Of the DFT process performance tests showing Waite
Massage automatically scan pause
(2) Adjust the remote control Press any Key IR Out Make sure
that only Nomal LED blinks.
(3) ETC Key -> red Pressing the Info Key
i) 5V Out Output 3 seconds
ii) 5V output OFF
iii) 12V Out Output 3 seconds
iv) 12V output OFF(Given the ST output time adjustable)
(4) Nomal LED, 5V LED, 12V LED flicker worker using the
PASS.
(5) After the check is complete automatic test is initiated.
6.3. RJP Check
6.3.1. Initial setting
(1) Select Power switch ( up ) as the picture
(2) Set the Switch No.5 to ON (up) as the picture
Others should be set to OFF (down)
6.3.2. Checking Guide
(1) Press the P-ONLY key of R/C
(2) Press the Exit key of R/C
(3) Connect with the TV through RJP cable (wait for the JIG
on)
(4) RJP Pin check is carried out automatically
(5) The result is shown as below
(6) If RJP Pin check finished or you check other function, must
remove the RJP cable from TV
* RJP Cable : Direct LAN Cable
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