LG 47LY960H, Руководство по обслуживанию

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Only for training and service purposes
5. Tool option selection and Ship-out
mode and GND/Hi-pot check
5.1. Tool Option selection
▪ Method: Press Adj. key on the Adj. R/C, then select Tool
option.
5.2. 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.
5.3. GND and Hi-pot auto-check
5.3.1. Method
(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.
- 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.
5.3.2. Checkpoint
▪ TEST voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
▪ 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 0.5 mArms
6. Audio
Measurement condition:
1. RF input: Mono, 1KHz sine wave signal, 100% Modulation
2. CVBS, Component: 1KHz sine wave signal 0.5Vrms
7. Check Commercial features
7.1. External SPK Out
7.1.1. Equipment & Condition
▪ Jig (Speaker out JIG) or Oscilloscope
7.1.2. Check the speaker out
(1) Connect external speaker to speaker out port with phone
jack on TV side as below.
(2) Check the Max. speaker output is 1W or not. Sine wave
with 1KHz will be displayed.
(3) Press Vol. control button up/down in turns and check the
waveform of Oscilloscope.
Mode info. Commercial Feature
Name IR Out DC Power Out
(5V/ 12V)
Ext SPK Out External Clock Pro:Idiom
LY96*H O O O X O
Button of Vol. control Waveform of Oscilloscope
UP(+)
DOWN(-)
No. Item Min Typ Max Unit Remark
1.
Audio practical
max Output, L/R
(Distortion=10%
max Output)
9 10 12 W
EQ Off
AVL Off
Clear Voice Off
8.10 10.8 Vrms
2.
Speaker (8 Ω
Impedance)
9 10 12 W