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LG 42LP860H Service Manual page 14

Chassis : ld3bf
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5. Check Commercial features
Mode info.
IR
Name
inch
Out
LP860H-ZA
42/47/55
O
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)
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Commercial Feature
Ext
DC Power
SPK
CLOCK
Pro:Idiom
Out (5V/ 12V)
Out
O
O
X
(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
O
(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
No.
Item
Audio practical
max Output, L/R
1.
(Distortion=10%
max Output)
Speaker (8 Ω
2.
Impedance)
Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
- 14 -
Min
Typ
Max
Unit
9
10
12
W
EQ Off
8.10
10.8
Vrms
AVL Off
Clear Voice Off
9
10
12
W
LGE Internal Use Only
Remark

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