72LZ9700-TA (CHASSIS:LB03N) - LG TV Service Manual (repair manual). Page 13

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- Auto checking

• Auto checking is doing in “Power Only”.
• Checking the result of searched (check that is in list or not)
• Go out of checking mode pushing button “Exit”.

- Manual checking

• Push the button “Power Only” and “Exit”.
• Push the button hot key “Bluetooth”.
• Checking the result of searched (check that is in list or not)
• Go out of checking mode pushing button “Exit.

- After final inspection, press In-Stop key of the Adj. R/C and

check that the unit goes to Stand-by mode.

- Check that Power Cord is fully inserted to the SET.

(If loose, re-insert)

- 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.

• 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

NEUTRAL

• LEAKAGE CURRENT: At 0.5 mArms

Measurement condition:
1. RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
2. CVBS, Component: 1 KHz sine wave signal 0.4 Vrms
3. RGB PC: 1 KHz sine wave signal 0.7 Vrms

No.

Item

Min.

Typ.

Max.

Unit

1. 

Audio practical max

9.0

10.0

12.0

W

EQ Off

Output, L/R

AVL Off

(Distortion=10 %

8.5

8.9

9.8

Vrms

Clear Voice Off

max Output)

2. Speaker 

(8 

Ω

10.0

15.0

W

EQ On

Impedance)

AVL On

Clear Voice On