Read LG 50LA6650 (CHASSIS:LA33B) Service Manual online
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Model
Tool 1
Tool 2
Tool 3
Tool 4
Tool 5
Tool 6
Tool 7
42LA6650-UA
132
45585 29592 61425 14742
1354
47659
47LA6650-UA
133
45585 29592 61425 14742
1354
47659
50LA6650-UA
4230
45585 28592 61725
6294
1354
46635
55LA6650-UA
135
45585 29592 61425 14742
1354
47659
47LA6900-UD
165
45585 29592 61425 14742
1354
47659
55LA6900-UD
167
45585 29592 61425 14742
1354
47659
50LA6900-UE
4230
45585 28592 61725
6294
1354
46635
47LA7400-UD
181
45585 29592 61425 14742
1354
47659
55LA7400-UD
183
45585 29592 61425 14742
1354
47659
60LA7400-UD
47LA6450-UA
101
45585
6536
61725 14374
1353
42155
※
Tool option can be reconstructed by Software
5.3. Local Dimming Inspection
(1) Press ‘TILT” key of the Adj. R/C and check moving
patterns. The black bar patterns moves from top to bottom.
If a local dimming function does not work, a whole screen
shows full white.
<Local dimming All model except for 32LA6600-NE>
5.4. Magic Motion remote controller Check
5.4.1. Test equipment
▪ RF-remote controller for check, IR-KEY-CODE remote
controller.
▪ Check AA battery before test. A recommendation is that a
tester change battery every lots.
5.4.2. Test
(1) Make pairing with TV set by pressing “Start key(Wheel
key)” on RCU.
(2) Check a cursor on screen by pressing ‘Wheel key” of RCU
(3) Stop paring with TV set by pressing “Back+ Home” key of
RCU
5.4.3. Applied models
Chassis
Model Name
Magic RF receiver
LA33B
42/47/50/55LA6650-UA
Built-in
47/55LA6900-UD
50LA6900-UE
32/39/42/47/50/55/
60LN5700-UA/UH
Dongle
32/39/42/47/50/55/
60LN5750-UH
32LN570B-UH
47/55LN5790-UH
47/55LA6450-UA
※
Dongle Model : An USB dongle-type receiver will be
supplied in form of accessory.
So this pairing test is not necessary for these models
5.5. Wi-Fi MAC Address Check
5.5.1. Using RS232 Command
Command
Set ACK
Transmission
[A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
5.5.2. Check the menu on in-start
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