Read LG 42LH250C (CHASSIS:LD91Z) Service Manual online
RGB
COMPONENT
F-SCART
BUF_TS_CLK/ERR/SYN/DATA[0]
DDR2 SDRAM
(1Gb)
IC300
NAND Flash
HYNIX
IC102
USB
Digital amp
(NTP3100L)
IC701
COMP_Y/Pb/Pr
SC1_CVBS_IN
DSUB_ R/G/B
I2S
Tune
r
(T
DFW
-G23
5
D1)
T
U
100
0
LCD Panel
-19/22/26/32/42LH250C ( Only 42inch FHD )
74LV
C541A
Bu
ffer
IC502
CI Slo
t
(P
50
0)
0)
74LCX244
Bu
ffer
IC501
PCM_A[0:7]
FE_VMAIN
PCM_A[0:7]
SDDR_D[0:15]
DDR2 SDRAM
(512Mb)
IC301
TDDR_D[0:15]
SDDR_A[0:12]
Mstar S6
LGE3369A
(DVIX)
(IC100)
MP6211DH
USB Power
IC402
USB Power
FE_TS_DATA[0:7] Æ CI_MDI[0:7]
SC1_R/G/B
DTV/TV_VOUT
SC1_L/R_IN,
FE_AM_AUDIO,COMP_L/R_IN,
PC_L/R_IN
TDDR_A[0:12]
TPA6110A
IC700
Head
Phone
RS-232C
MAX3232CDR
IC403
SPDIF
SPDIF_OUT
DSUB_H/VSYNC
HP_L/ROUT
L/R
CI_TS_DATA[0:7]
PCM_D[0:7] Æ CI_DATA[0:7]
CI_ADDR[0:7]
AUDIO IN
DGB_TX/RX
HPD1/2, HDMI_CEC
TMDS[0:7] ( Data, Clock (+/-))
USB_DM/DP
EEPROM
AT24C512
(IC105)
EEPROM
AT24C512
(HDCP)IC107
I2C
LVDS
Serial Flash
IC104
For Triton
Serial Flash
IC103
For Boot
KIA7027
(IC101)
Voltage Detector
74LX1G14C
(IC108)
Schmitt Trigger
Reset
5V_HDMI_1/2
HDMI 1/2
Block diagram
Main Block
External
Speaker
Volume
Control
RJ45
Audio L/R
Control + / -
Control 0/1/2/3
74LX1G14C
(IC904)
Buzzer
(BU900)
PWM
LED Clock
B/D
PIC16F819
(IC901)
I2C
KEY1/2
LED_G/R & IR
IR & Control
B/D
IR_OUT
(To RS232 / HDMI)
TPA3124
IC702
74AC08
IC1100
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