LG 55LW9800 Service Manual page 19

5. GND and Internal Pressure check
5.1 Method
1) GND & Internal Pressure auto-check preparation
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
2) Perform GND & Internal Pressure 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.
5.2 Checkpoint
• 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
- Internal Pressure TEST = POWER CORD GND & LIVE &
NEUTRAL
• LEAKAGE CURRENT: At 0.5mArms
6. EYE-Q Operation check
Step 1) Turn on the TV.
Step 2) Press EYE button in adjust remote control.
Step 3) Stay 6 seconds with Eye Q sensor hidden located on
the front of the set.
Step 4) Check the "Sensor Data" on the screen and check
whether the value is lower thanafter 6 seconds, the
value does not go below 10, Eye Q sensor is not
working properly. Then, change the sensor.
Step 5) Remove hand from the Eye Q II sensor and stay for 6
seconds.
Step 6) Check whether the "Back Light (xxx)" value has risen
on the screen. If after 6 seconds and the value still
does not go high, the eye Q II sensor is not working
properly. Replace the sensor.
<Step1>
<Step4>
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
<Step2> <Step3>
<Step5>
7. Magic Motion Remote Control
Inspection
(47/55LW9500-NA, 60LW9600-NA,
42/47/55LW7700-NA, 447/55LW7700-
UA, 42/47/55LW7500-NB)
- Required Instruments: Inspection RF-remote control,
Inspection IR-KEY-CODE remote control.
- Prior to the test, AA battery for the RF-remote control should
be adequate. (Change the battery for each LOT is
recommended)
- Test procedures
a) Press the 'START' key on the controller to pair with the
set.
b) Press the 'OK' key in the controller and check whether the
cursor appears on the set.
c) Press 'Vol+ (STOP)' key to de-pair with the set.
8. Audio
No Item Min
1. Audio practical max 9.0
Output, L/R
8.5
(Distortion=10%
max Output)
2. Speaker (8Ω
Impedance)
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
- 19 -
Typ Max Unit
10.0 12.0 W 47/55LW9500-NA
Measurement
47/55LW9600-NA
8.9 9.8 Vrms
condition
60LW9600-NA
EQ Off
47/55/60LW9500-UA
AVL Off
42/47/55LW7700-NA
Clear Voice
47/55LW7700-UA
Off
42/47/55LW7500-NB
10.0 15.0 W Measurement 47/55LW9500-NA
condition
47/55Lw9600-NA
EQ On
60LW9600-NA
AVL On
47/55/60LW9500-UA
Clear Voice On
42/47/55LW7700-NA
47/55LW7700-UA
42/47/55LW7500-NB
LGE Internal Use Only
Remark