LG 65LA970T-DA (CHASSIS:LT34E) Service Manual ▷ View online
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5.4. LAN Inspection
1) LAN Port connection with PCB
2) Network setting at MENU Mode of TV
3) Setting automatic IP
4) Setting state confirmation
5) If automatic setting is finished, you confirm IP and MAC
Address
5.5. WIDEVINE Key Inspection
1) Confirm Key input Data at the “IN START” MENU Mode
5.6. Model name & Serial number D/L
5.6.1. Notice
1) Serial number D/L is using of scan equipment.
2) Setting of scan equipment operated by Manufacturing
Technology Group.
3) Serial number D/L must be conformed when it is produced in
production line, because serial number D/L is mandatory by
D-book 4.0
4) Check the model name In-start menu -> Factory name
displayed (ex 42LV5500-DD)
5) Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LV5500-DD)
5.6.2. Method : Auto
1) Press “Power on” key of service remocon.(Baud rate : 115200
bps)
2) Connect RS232 Signal Cable to RS-232 Jack
3) Write Serial number by use RS-232.
4) Must check the serial number at Instart menu
5.6.3. Method : Manual
* If the TV set is downloaded By OTA or Service man, Sometimes
model name or serial number is initialized.
( Not always) It is impossible to download by bar code scan, so
It need Manual download.
1) Press the ‘instart’ key of ADJ remote controller.
2) Go to the menu ‘6.Model Number D/L’ like below photo.
3) Input the Factory model name or Serial number like photo.
5.7. Wi-Fi MAC ADDRESS CHECK
5.7.1. Notice
1) Using RS232
Command
Set ACK
Transmission [A][l][][Set ID][][20][Cr]
[O][K][x] or [N][G]
2) Check the menu on in-start
5.8. Local Dimming Inspection (Optional)
5.8.1. Edge LED models with local dimming
1) Press ‘TILT” key of the Adj. R/C and check moving pat-
terns. The black bar patterns moves from left to right. If local
dimming function does not work, a whole screen shows full
white.
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5.9. GND and HI-POT Testing
5.9.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
5.9.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
automatically
5.9.3. Check Point
(1) Test voltage
3 Poles : GND: 1.5KV/min at 100mA / SIGNAL: 3KV/min at
100mA
(2) TEST time: 1 second
(3) TEST POINT
3 Poles : GND Test = POWER CORD GND and SIGNAL
CABLE GND.
Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
5.10. Motion Remote controller Inspection
5.10.1. Equipment
Motion remote controller for test, IR-KEY-CODE remote
controller for test
Check battery before test. (Recommend : Change battery for
every Lot.)
5.10.2. Process
1) If you select the ‘start key(wheel)’ on the controller, you can
pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select the
‘Wheel Key’ on the controller .
3) You must remove the pairing with the TV Set by select ‘Back
+ Home Key’ on the controller.
5.11. Audio
No
Item
Min Typ Max
Unit
Remark
1
Audio practical
max Output, L/R
(Distortion=10%
max Output)
9.0
10.0 12.0 W
Measure-
ment
condition
(TBD)
8.5
8.9
9.8
Vrms
2
Speaker (8Ω
Impedance)
10.0 15.0 W
Measure-
ment
condition
(TBD)
▪ Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.4Vrms
(3) RGB PC: 1 KHz sine wave signal 0.7Vrms
5.12. 3D Function test
5.12.1. Equipment
Pattern Generator MSPG-3233, HDMI mode 37, pattern No. 81
5.12.2. Equipment
1) Connect HDMI (HDMI mode 371, Pattern No. 81)
2) Insert 3D Mode, Select side by side mode.
3) Without 3D-glasses, Like below figure.
4) With 3D left-glass, Like below figure. (Center is RED)
5) With 3Dright-glass, Like below figure.(Center is Blue)
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5.13. HDMI ARC Function Inspection
5.13.1. Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
5.13.2. 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
.
5.14. Camera Function Inspection
(1) Objective : To check how it connects between Camera and
PCBA normally, and their Function
(2) Test Method : This Inspection is available only Power-Only
Status.
- Slide Camera Up.
- Camera’s Preview picture apeears on TV Set.
- Slide Camera Down.
5.15. PIP/W&R Function Inspection
(1) Objective : To check the connection between sub tuner and
PCBA, and their Function
(2) Test Method : This Inspection is available only Power-Only
Status.
- Press exit key of the Adj. R/C and Press PIP key.
- Check that the SUB TUNER pop up window on the TV Set.
- Check that the normal operation (picture, sound) of DTV
on the TV Set
5.16. Outgoing condition Configuration
■ When pressing IN-STOP key by SVC remocon, Red LED
are blinked alternatively. And then automatically turn off.
(Must not AC power OFF during blinking)
<Slide Down Status>
<Slide Up Status>
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EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
A22
A2
A7
A10
AT
1
AG1
90
0
20
0
CAM
1
201D
200D
31
0
40
0
41
0
700
71
0
54
0
541
530
120
510
121
52
1
LV
1
* Set + Stand
Dual Play
(Option)
(Option)
AG2
LV
2
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