DOWNLOAD LG 32LD550 (CHASSIS:LA02B) Service Manual ↓ Size: 4.9 MB | Pages: 58 in PDF or view online for FREE

Model
32LD550 (CHASSIS:LA02B)
Pages
58
Size
4.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ld550-chassis-la02b.pdf
Date
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LG 32LD550 (CHASSIS:LA02B) Service Manual ▷ View online

15. Headphone Audio
Check Component Cable
for damage or open conductor.
Check HP/BT OUT_Signal
(input of IC300)
ok
ok
No
Replace C304 ~ 307
14. SPDIF Audio
Check AV Cable for damage
for damage or open conductor
Check JK8400
& Signal Line
ok
ok
No
Replace Jack
Follow procedure 
‘8. All source audio’
trouble shooting guide.
Follow procedure 
‘8. All source audio’
trouble shooting guide.
Check  L302 (+3.3V_NORMAL)
ok
No
Replace L302
Check IC300 & HP_L/R_OUT
ok
No
Replace IC300
Check JK300
& Signal Line
ok
No
Replace Jack (JK300)
D-sub RGB
HDMI 1
Side AV
CVBS, L/R
DDR2 (128Mbit)
Nanya
NAND Flash
(4GB)
Digital Audio (Optic)
USB1
Digital AMP
NTP7000L
RS-232C (Ctrl./SVC)
4x1 
HDMI Switch
NXP
I2S
NVRAM
RGB/H/V
DDR_Data[0:15], DQS, DM …
Data[16:31]
Addr.[ ], ctrl. data
MICOM
(uPD)
MAX3232
BCM3549
BCM3549
(ATSC)
(ATSC)
Data [0 … 7]
X-tal
AV
Component 1
Y Pb Pr, L/R
CVBS, L/R
HDMI4
Addr[0…1], CS …
Component 2
Y Pb Pr, L/R
Audio L/R
Audio L/R (for RGB)
HDMI 2
HDMI 3
SPDIF
DP/DM/ +5V
RX/TX
54MHz(3
rd
overtone)
JACK PACK
JACK PACK
at REAR
at REAR
JACK PACK
JACK PACK
at SIDE
at SIDE
SCL, SDA_3.3V
SCL, SDA_3.3V
LCD Module
(FHD, 120Hz)
USB2
Wireless Ready
IF +/-
SIF
TU_CVBS
Reset / IF_AGC …
SDA/SCL_5V 
RF
TDVJ
-
H001F
DP/DM/ +5V
MCLK
LAN
FRC_URSA3
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
HP_L/R
Earphone
DDR3 (1Gbit)
Hynix
LVDS_60Hz
LVDS_120Hz
D-sub RGB
HDMI 1
Side AV
CVBS, L/R
DDR2 (128Mbit)
Nanya
NAND Flash
(4GB)
Digital Audio (Optic)
USB1
Digital AMP
NTP7000L
RS-232C (Ctrl./SVC)
4x1 
HDMI Switch
NXP
I2S
NVRAM
RGB/H/V
DDR_Data[0:15], DQS, DM …
Data[16:31]
Addr.[ ], ctrl. data
MICOM
(uPD)
MAX3232
BCM3549
BCM3549
(ATSC)
(ATSC)
Data [0 … 7]
X-tal
AV
Component 1
Y Pb Pr, L/R
CVBS, L/R
HDMI4
Addr[0…1], CS …
Component 2
Y Pb Pr, L/R
Audio L/R
Audio L/R (for RGB)
HDMI 2
HDMI 3
SPDIF
DP/DM/ +5V
RX/TX
54MHz(3
rd
overtone)
JACK PACK
JACK PACK
at REAR
at REAR
JACK PACK
JACK PACK
at SIDE
at SIDE
SCL, SDA_3.3V
SCL, SDA_3.3V
LCD Module
(FHD, 120Hz)
USB2
Wireless Ready
IF +/-
SIF
TU_CVBS
Reset / IF_AGC …
SDA/SCL_5V 
RF
TDVJ
-
H001F
DP/DM/ +5V
MCLK
LAN
FRC_URSA3
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
HP_L/R
Earphone
DDR3 (1Gbit)
Hynix
LVDS_60Hz
LVDS_120Hz
D-sub RGB
HDMI 1
Side AV
CVBS, L/R
DDR2 (128Mbit)
Nanya
NAND Flash
(4GB)
Digital Audio (Optic)
USB1
Digital AMP
NTP7000L
RS-232C (Ctrl./SVC)
4x1 
HDMI Switch
NXP
I2S
NVRAM
RGB/H/V
DDR_Data[0:15], DQS, DM …
Data[16:31]
Addr.[ ], ctrl. data
MICOM
(uPD)
MAX3232
BCM3549
BCM3549
(ATSC)
(ATSC)
Data [0 … 7]
X-tal
AV
Component 1
Y Pb Pr, L/R
CVBS, L/R
HDMI4
Addr[0…1], CS …
Component 2
Y Pb Pr, L/R
Audio L/R
Audio L/R (for RGB)
HDMI 2
HDMI 3
SPDIF
DP/DM/ +5V
RX/TX
54MHz(3
rd
overtone)
JACK PACK
JACK PACK
at REAR
at REAR
JACK PACK
JACK PACK
at SIDE
at SIDE
SCL, SDA_3.3V
SCL, SDA_3.3V
LCD Module
(FHD, 120Hz)
USB2
Wireless Ready
IF +/-
SIF
TU_CVBS
Reset / IF_AGC …
SDA/SCL_5V 
RF
TDVJ
-
H001F
DP/DM/ +5V
MCLK
LAN
FRC_URSA3
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
DDR2 (128Mbit)
Nanya
HP_L/R
Earphone
DDR3 (1Gbit)
Hynix
LVDS_60Hz
LVDS_120Hz
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