Read LG 72LEX9S-CA (CHASSIS:LC03N) Service Manual online
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5.4 Tool Option check
Push ‘IN-START’ key of the Adj. R/C, then check
Push ‘IN-START’ key of the Adj. R/C, then check
Model
Tool 1 Tool 2 Tool 3 Tool 4 Tool 5 Menu
72LEXS9-CA
57792 21783 54876 14764 2035
6.1 Method
- Check that Power Cord is fully inserted to the SET.
- 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)
- 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 Check point
- TEST voltage
▪ GND: 1.5KV/min at 100mA
▪ SIGNAL: 3KV/min at 100mA
- TEST time: 1 second
- TEST POINT
▪ GND TEST = POWER CORD GND & SIGNAL
CABLE METAL GND
LIVE & NEUTRAL
- LEAKAGE CURRENT: At 0.5mArms
Tool option1~5.
(If loose, re-insert)
7. Audio test
- Measurement condition
▪ RF input : Mono, 1 ㎑ sine wave signal, 100% Modulation
▪ AV, Component : 1 ㎑ sine wave signal 0.5Vrms
▪ RGB PC : 1 ㎑ sine wave signal 0.7Vrms
No
Item
Min Typ Max Unit
Remark
9.0 10.0 12.0 W
1.
Audio practical
max utput, L/R
(Distortion=10%
max Output)
8.5 8.9 9.8 Vrms
EQ / AVL
/ Clear Voice
Off
-
2. Speaker
Ω Impedance)
10.0 15.0 W
EQ / AVL
/ Clear Voice
On
8. Motion remocon test
1) equipments : RF remocon to test, IR-KEY-CODE
2) Check condition of AA battery which is used for
(recommendation : changing battery every LOT.
3) Method
- Paring with set by pushing ‘MUTE(START)’ key.
- Check displaying cursor or not after pushing
‘OK’ key.
- Disconnect paring mode with set by pushing
‘VOL+(STOP)’ key.
9. 3D function test
※ Equipment and pattern
- Equipment : pattern generator MSHG
-600 or MSPG-6100 which support HDMI 1.4
- Pattern : HDMI mode No.872 , pattern No. 83
(8
remocon to test
RF-remocon before testing.
1) Connect HDMI cable and input pattern to 3D test
(Fig1) at HDMI mode.
[ Fig1 : HDMI mode No.672 and pattern No.83 ]
2) Push ‘OK’ key and enter 3D mode after displaying
OSD to enter 3D mode.
3) Check displaying below pattern(Fig2) without 3D
glasses.
[ Fig2 : 3D mode without 3D glasses ]
9.1 IR Emitter test
1) Start 3D pattern test
2) Check turning on the lamp of IR test or not.
If IR tester receive normal signal from 3D
IR emitter, lamp turns on as below picture.
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