DOWNLOAD LG 22LG3DDH (CHASSIS:LA96E) Service Manual ↓ Size: 4.45 MB | Pages: 36 in PDF or view online for FREE

Model
22LG3DDH (CHASSIS:LA96E)
Pages
36
Size
4.45 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
22lg3ddh-chassis-la96e.pdf
Date
PREV: LG 22LG3DCH (CHASSIS:LA76A) Service Manual

LG 22LG3DDH (CHASSIS:LA96E) Service Manual ▷ View online

8. All Source Audio
Make sure you
can’t hear any audio.
↓ OK
Check Mstar AUDIO_MASTER_CLK
R606
→
NO
Replace Mstar(IC100)
or Main board
↓ OK
Check Mstar I2S Output
R604, R605, R606
→
NO
Check signal line
Or replace IC100
↓ OK
Check IC600 Power
24V, 3.3V, 1.8V.
→
NO
Check Regulaor
IC601.IC3001
↓ OK
Check Output Signal
P1400 1,2,3,4 PIN
→
NO
Replace NTP(Audio AMP)
IC600
↓ OK
Check Connector & P600
→
NO
Replace connector
if found to be damaged.
↓ OK
Check speaker resistance
and connector damage.
→
NO
Replace speaker.
9. Digital TV Audio
Check Tuner 5V Power
TU1001 4Pin
→
NO
Check IC1002
Check IC1003
↓ OK
Check IF_P/N Signal
→
NO
Bad Tuner. Replace Tuner.
→
NO
Bad Tuner. Replace
Tuner.
↓ OK
Check Check Demodulator Input
Clock(X1005)
→
NO
Replace X1005
↓ OK
Check IC1004(LGDT) Output
- AR1070, AR1071
→
NO
Replace IC1004
↓ OK
Check Output Signal
P1400 1,2,3,4 PIN
→
NO
Replace NTP(Audio AMP)
IC600
↓ OK
Check Connector & P600
→
NO
Replace connector
if found to be damaged.
↓ OK
Check speaker resistance
and connector damage.
→
NO
Replace speaker.
10. Analog TV Audio
Check RF Cable
↓ OK
Check Tuner 5V Power
TU1001 4Pin
→
NO
Check IC1002
Check IC1003
→
NO
Bad Tuner. Replace
Tuner.
↓ OK
Check SIF buffer signal.
→
NO
Check SIF Signal line.
↓ OK
Follow procedure All source audio
trouble shooting guide.
→
NO
Replace Mstar(IC100)
or Main board
11. Pillow Speaker Audio
Check Switch
SW1500 Location(Pillow Speaker)
↓ OK
Check Connection & JK1500
→
NO
Replace Connector if found to be
damaged
D-sub RGB
HDMI 
1
Side AV
CVBS, L/R
DDR2 (512Mbit)
Qimonda / Hynix
NAND Flash
(256Mb)
Digital AMP
NTP3100A
RS-232C (Ctrl./SVC)
I2S
EEPROM
512Kb
RGB/H/V
Hal
f-N
IM Tu
ner
DDR_Data[0:15], DQS, DM …
Addr.[ ], ctrl. data
MAX3232
Saturn6
Saturn6
(ATSC 
(ATSC 
US)
US)
MPEG2/4
Linux
Scaler
PIP : x
Headphone(opt)
Data [0 … 7]
IF +/-
SIF
TU_CVBS
Reset / IF_AGC …
SDA/SCL_5V 
JTAG
CLK,TDI,TDO,MS,RST
Addr[0…1], CS …
Audio L/R
Audio L/R (for RGB)
Audio L/R 
Out
RX/TX
RX/TX
JACK PACK
JACK PACK
at REAR
at REAR
JACK PACK
JACK PACK
at SIDE
at SIDE
SCL, SDA_3.3V
TR Buffer
VSB
Demod.
X-tal
Reset Switch
Reset IC
12MH
z
TS In[0…7]
TS_clk, SOP, Val
H/P Amp.
EEPROM
EEPROM
Data[16:31]
DDR2 (512Mbit)
Qimonda / Hynix
AV
Component 1
Y Pb Pr, L/R
CVBS, L/R
Speaker Out(8ohm)
USB2.0
SCL, SDA_3.3V
IO Expander
SCL, 
SDA_3.3V
GPIO
DP/DM
O.C. Protector
+5V
+5V
LCD Module
LVDS
MPEG2,
LINUX
AMP
PTC
MPI Control
IR OUT
26LG3DDH
Universal Pillow
PILLOW_SPK
P_CH_UP, P_ON_OFF, P_CH_DN
Audio AMP 
TPA3124D2PWPR
Mechanical Switch
DET_PILLOW
Page of 36
Display

LG 22LG3DDH (CHASSIS:LA96E) Service Manual ▷ Download

RANDOM: