LG 42LV4400 LC420EUG-RDV2-7R1 (serv.man2) Service Manual ▷ View online
CONFIDENTIAL – DO NOT COPY
Page 5-4
File No. SG-0000034
AV/Composite Video (CVBS) Connector
a. Frequency: H: 15.734KHz V: 60Hz (NTSC)
b. Signal level: Video ( Y + C ):1Vp-p
Sync (H+V):0.3V below Video (Y+C)
c. Impedance: 75Ω
d. Connector type: RCA Jack
a. Frequency: H: 15.734KHz V: 60Hz (NTSC)
b. Signal level: Video ( Y + C ):1Vp-p
Sync (H+V):0.3V below Video (Y+C)
c. Impedance: 75Ω
d. Connector type: RCA Jack
Component video Connector
a. Frequency: H: 15.734KHz V: 60Hz (NTSC-480i)
a. Frequency: H: 15.734KHz V: 60Hz (NTSC-480i)
H: 31KHz V: 60Hz (NTSC-480p)
H: 45KHz V: 60Hz (NTSC-720p)
H: 33KHz V: 60Hz (NTSC-1080i)
H: 67.5KHz V: 60Hz (NTSC-1080P)
b. Signal level: Y: 1Vp-p Pb: ±0.350Vp-p Pr: ±0.350Vp-p
c. Impedance: 75Ω
d. Connector type: RCA Jack
PC audio in
a. Signal level: 0.5Vrms
b. Impedance: 47KΩ
c. Frequency: 20Hz-20KHz
d. Connector type: RCA Jack
PC audio in
a. Signal level: 0.5Vrms
b. Impedance: 47KΩ
c. Frequency: 20Hz-20KHz
d. Connector type: 3.5
mini jack
Video audio in
a. Signal level: 0.5Vrms
b. Impedance: 47KΩ
c. Frequency Response: 20Hz-20KHz
d. Connector type: RCA L/R
Digital Audio Out (Optical)
a. Peak emission wave length: 630 – 690
μ
m
b. Transmission Speed:
13.2M bps (Max)
c. Connector type:
Optical fiber transmitter
CONFIDENTIAL – DO NOT COPY
Page 5-5
File No. SG-0000034
Analog Audio out
a. Signal level:
2 Vrms (Max)
b. Impedance:
1.5KΩ
c. Frequency Response:
20Hz-20KHz
d. Connector type:
RCA L/R
CONFIDENTIAL – DO NOT COPY
Page 6-1
File No. SG-0000034
Chapter 6 Main Board I/O Connections
J4
C
ONNECTION
[Main BD to Power BD]
Pin
Description
1 +5VSB
2 +5VSB
3 +5VSB
4 GND
5 GND
6 GND
7 GND
8 +12V
9 +12V
10 +12V
11
POWER SW ON OFF
12
BL ON OFF
13 Lamp
Status
14 PWM
DIM
J9
C
ONNECTION
[Main BD to LED Logo]
Pin
Description
1
5VSB
2
NC
3
WHITE
J14C
ONNECTION
[Main BD to IR Light Sensor BD]
Pin
Description
1 OIRI_in
2 IR_POWER
3 GND
4 LS_SCL
5 LS_SDA
6 LIGHT_SENSOR_DETECT
CONFIDENTIAL – DO NOT COPY
Page 6-2
File No. SG-0000034
J3
C
ONNECTION
[Main BD to Key pad BD]
Pin
Description
1 +5VSB
2 GND
3 ENCODER
A
4 GND
5 ENCODER
C
J5
C
ONNECTION
[Main BD to SPEAKER
]
Pin
Description
1 R+
2 R-
3 L+
4 L-
TCN3
C
ONNECTION
[I2C
INTERFACE]
Pin
Description
1 N.C.
2 SDA_TPS
3 SCL_TPS
4 GND
Click on the first or last page to see other 42LV4400 LC420EUG-RDV2-7R1 (serv.man2) service manuals if exist.