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TV and Video
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Flat Panel Television
LG Electronics
- page 33
Models:
22LN45**-Z*
MPEG2/4, DVB-C
MPEG2/4, DVB-T
MPEG2/4, DVB-T2
MPEG2/4,DVB-S
1
33
33
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33 pages, 6.69 Mb
Contents
Main
Page
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
General Guidance
Before returning the receiver to the customer,
Leakage Current Cold Check(Antenna Cold Check)
SERVICING PRECAUTIONS
Page
SPECIFICATION
1. Application range
2. Requirement for Test
3. Test method
4. Model General Specification
Page
5. Timing
5.1. RGB/HDMI (PC)
5.2. HDMI (DTV)
5.3. Component
ADJUSTMENT INSTRUCTION
1. Application Range
2. Designation
3. Main PCB check process
* Boot le Download
3.1. EDID Process
3.1.1. EDID download
3.1.2. RGB EDID Data
3.1.3. HDMI EDID Data
3.2. Function Check
4. Total Assembly line process
4.1. Tool option & ADC Check
4.2. Model name & Serial number download
4.2.1. Model name & Serial number D/L
4.2.2. Method & notice
4.3. Function Check
4.3.1. Check display and sound
4.3.2. PCMCIA CARD Check
4.3.3. PIP Check
4.3.4 HDMI MHL Function Inspection(HDMI2 Port only)
4.5. DPM Operation check
4.6. Model name & SW version & Adjust check
4.6.1. Model Name& SW Version Check
4.6.2. Adjust Check
4.7. Outgoing condition Configuration
TROUBLE SHOOTING
1. No Power
2. No Picture
3. No Video - Digital TV
4. No Video - Component
5. No Video - RGB
6. No Video - HDMI
7. No Audio
BLOCK DIAGRAM
LGE2121-MS10
Option(Only for DVB)
- ATSC: TDSS-H501F (Half NIM)
Option
EXPLODED VIEW
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
AR101
DIMMING
SERIAL FLASH MEMORY
A0h
MODEL OPTION
DSUB
PHM_ON
Memory
MODEL_OPT_3 MIU1-NO_DDR
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
DSUB RGB USB(SIDE)
RS232C(SIDE)
INTERFACE
4 12
HDMI
HDMI_2 With MHL
HDMI_1 CEC
MODULE&CONTROL
6 12
IR/LED and Control
0~0.7V
NC
PIN23 LGD
IR_OUT(Ready)
Headphone block
AUDIO AMP
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
POWER
8 12
AMP_VCC Control
R842 22K
PANEL POWER CONTROL
Not used : only for small(ready)
5V TO 1.15V DCDC CONVERTER M1 Core
LED DRIVER
R1137 0.1 1W
1%
IC1100 DT1641AS
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
2G 1600
K4B1G1646G-BCK0
1G 1600
DDR 12 12
IC1201
* Option name of this page : CI_SLOT CI Region (because of Hong Kong)
CI DETECT
120915 BufferIC change 0ITO742440D ->0ISTLPH048A OE H
DIR L
LINPUT HIGH-Z
NETCAST4.0 EU(DVB-T/C)_TUNER_BLOCK
Close to TUNER
close to TUNER
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
GP4L_S7LR2
SCART / COMPONENT&CVBS
Gain=1+Rf/Rg