LG 50PH4700-DD (CHASSIS:PB32A) Service Manual ▷ View online
Comp (Y)
Comp (Pb)
p (
)
Comp Y/CVBS
R3609
Comp Pb
R3612
Comp Pr
R1618
Comp (Pr)
Comp (Pr)
Comp Y/CVBS
Comp Pb
Comp Pr
( )
Comp Y/CVBS
C374
Comp Pb
C372
Comp Pr
C373
1920 X 1080 (i)
Dot Freq : 74.25 MHz
H - Freq : 33.75 kHz
V – Freq : 60 Hz
V – Freq : 60 Hz
SYSTEM
A:DDR3x16 512 X 2
Commercial only
6. RGB Video Trouble Shooting (Commercial only)
A:DDR3x16_512 X 2
B:DDR3x16_256 X1
= 1.25GB
X-TAL
(27MHz)
eMMC
(4GB)
Commercial only
F/Nim
Silicon Tuner
Serial TS
Demodulator
Cable
Serial TS
PH6700 only
USB2
MTK A2
USB1
USB2
USB3
USB2
USB3
USB1
NVRAM
(256KB)
USB0
CVBS
CVBS
LVDS
HD : 51P
FHD : 80P
USB3
Wi-Fi
HDMI1
HDMI2
HDMI3
HDMI RX
MHL Bridge
SIL1292
Audio
AMP
I2S Out
RGB,H/V
With EEPROM
PC-RGB
HDMI3
SIL1292
L/R In
CVBS
AV / COMP
HYBRID
PC-AUDIO
COMP
I2C
Sub Micom
(Renesas)
X-TAL
(32.768kHz)
CVBS/COMP _LR
COMP/ LR
SPDIF OUT
RS-232C
OPTIC
Eth
t
UART
RF Emitter
Module
COMP/ _LR
LAN
Ethernet
6. RGB Video Trouble Shooting (Commercial only)
Check Signal Format
Is it supported signal?
Y
Check RGB Cable
Check RGB JK3609
N
Y
Replace Jack
Y
Check RGB Signal and resistance
R3624/R3625/R3629
N
Replace It & Recheck
Y
Check Sync Signal
R3627/R3628
N
Y
Maybe LGE2122 (IC105)
Replace one of R3627/R3628
& Recheck`
has problems
RGB (R)
Commercial only
RGB (G)
RGB R
R3624
RGB G
R3625
RGB B
R3629
RGB (B)
RGB R
C205
800 X 600 (p)
Dot Freq : 40 MHz
RGB B
C209
RGB G
C207
800 X 600 (p) Dot Freq : 40 MHz
H - Freq : 37.879 kHz
V – Freq : 60.317 Hz
V – Freq : 60.317 Hz
C209
C207
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