Read LG 55LP860H (CHASSIS:LD33B) Service Manual online
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5. Check Commercial features
5.1. External SPK Out
5.1.1. Equipment & Condition
▪ Jig (Speaker out JIG) or Oscilloscope
5.1.2. Check the speaker out
1) Connect the External Speaker : check the sound
Connect oscilloscope, you can see this waveform.
5.2. IR Out and DC Power Outlet (5V/12V)
(1) Equipment & Condition
▪ Jig (commercial check JIG)
▪ Special 232C Cable for commercial check Jig
▪ Power only mode
▪ PCB mode (instart menu -> menu -> Configuration Setup
-> RS232 DC Power Outlet )
(2) Check the power out & IR out - commercial check jig
1) Connect each other RS232c port on the Commercial
Check JIG
2) Press RED Color Button on SVC Remote-control in
power only mode (or PCB mode)
3) Check the LED of jig board
- +5 V / +12 V LED (OK condition: Turn On)
- IR LED (OK condition: blinking)
(3) Check the power out & IR out - mini jig
1) Connect mini jig on RS232c port
2) Press RED Color Button on SVC Remote control in
power only mode (or PCB mode)
3) Check the LED of mini jig
(4) Pro:Idiom Check
1) Connect the RF Cable
2) Turn to the Pro:Idiom channel (No. 333)
3) Check the video & sound
** Only displayed at “POWER ONLY” mode
6. Audio
Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
Mode info.
Commercial Feature
Name
inch
IR
Out
DC Power
Out (5V/ 12V)
Ext
SPK
Out
CLOCK Pro:Idiom
LP860H-ZA 42/47/55
O
O
O
X
O
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
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