LG 42LN57XX / 42LN5700 / 42LN570T / 42LN570Y / 42LN5710 / 42LN5720 (CHASSIS:LB33B) Service Manual ▷ View online
4. Tuner Block Diagram
MTK A2
TDSQ-
G501D
G501D
[RESET] 2
AG24 [ADIN6_SRV]
AF19[OPCTRL1]
AJ19 [OPCTRL0]
[SLC] 3
[SDA] 4
[+3.3V_TUNER] 5
[+.1.8V_TUNER] 7
[T/C_DIF[P]] 10
[T/C_DIF[N]] 11
[ERROR] 16
[SYNC] 17
[VALID] 18
[MCLK] 19
[D0-7] 20-27
[+1.23V_S2_DEMOD] 30
[S2_RESET] 31
[+3.3V_S2_DEMOD] 32
[S2_F22_OUTPUT] 33
[LNB] 36
[S2_SCL] 34
[S2_SDA] 35
AM27 [ADCINP_DEMOD]
AN27 [ADCINN_DEMOD]
/TU_RESET1
IC2_SCL6
IC2_SDA6
+1.8_TU
+3.3V_TU
IF_P
IF_N
IF_AGC
ADCINP_DEMOD
ADCINN_DEMOD
33
Ω
33
Ω
Attenuator
5. Video/Audio In Block Diagram
MTK A2
[CVBS2P]
Jack Side
SoC Side
JK501
COMP1_Y/AV1_CVBS
COMP1_Pb
COMP1_Pr
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
COMP1_Y/AV1_CVBS_SOC
COMP1_Pb_SOC
[PB0P]
[PR0P]
[AIN4_L_AADC]
COMP1_Pb_SOC
COMP1/AV1/DVI_L_IN_SOC
[AIN4_R_AADC]
COMP1/AV1/DVI_R_IN_SOC
6. Audio Out Block Diagram
SPDIF_OUT
IC8101
Audio AMP
NTP7513
LPF
COMP1/AV1/DVI_L_IN_SOC
COMP1/AV1/DVI_R_IN_SOC
[ASPDIF0]
AUD_LRCH
HP_L/ROUT_MAIN
HEAD PHONE
LPF
4P WAFER
[AL0_ADAC]
[AR0_ADAC]
MTK A2
[AOLRCK]
[AOSDATA0]
AUD_LRCK
AUD_SCK
[AOBCK]
[STB_SDA]
[STB_SCL]
I2C_SDA1
I2C_SCL1
IC3000
MICOM
MICOM
AMP_MUTE
[AIN4_L_AADC]
[AIN4_R_AADC]
JK501
AUD_MASTER_CLK
[AOMCLK]
[OPCTRL4]
AMP_RESET_N
IC6100
TPA6138A2PWR
HP AMP
JK3602
JK3700
LPF
SPEAKER_L
SPEAKER_R
WOOFER
SIDE_HP_MUTE
HP_L/ROUT_AMP
7. HDMI
HDMI1
HDMI2
HDMI3
C
E
C
_
R
E
M
OT
E
E
RENESAS
MICOM
HDMI_CEC
MTK A2
Q3001
DDC_SCL_1_SOC
DDC_SCL_2_JACK
DDC_SDA_2_JACK
DDC_SCL_3_JACK
DDC_SDA_3_JACK
TMDS Link 8bits
HDMI_ARC
DDC_SDA_1_SOC
X-tal
32.768kHz
TMDS Link 8bits
TMDS Link 8bits
WOL_CTL
SIL1292
I2C_SCL4
I2C_SDA4
5V_BUS
OCP
5V_MHL
MHL_DET
TMDS Link or MHL Link
Click on the first or last page to see other 42LN57XX / 42LN5700 / 42LN570T / 42LN570Y / 42LN5710 / 42LN5720 (CHASSIS:LB33B) service manuals if exist.