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T49V20NCM5CC01 Service Manual
TABLE OF CONTENTS
PAGE
1. PRECAUTION AND NOTICES ------------------------------------------------------------------------------------- 1
1.1. SAFETY PRECAUTIONS ---------------------------------------------------------------------------------------- 1
1.2. PRODUCT SAFETY NOTICE ----------------------------------------------------------------------------------- 1
1.3. SERVICE NOTES -------------------------------------------------------------------------------------------------- 1
2. SERVICE TOOL & EQUIPMENT REQUIRED ---------------------------------------------------------------- 2
3. SPECIFICATIONS ----------------------------------------------------------------------------------------------------- 2~4
3.1. PRODUCT SPECIFICATIONS ---------------------------------------------------------------------------------- 2
3.2. FACTORY SUPPORTING MODES----------------------------------------------------------------------------- 3
3.3. INPUT TERMINALS ---------------------------------------------------------------------------------------------- 4
4. EXPLODED VIEW AND PARTS LIST --------------------------------------------------------------------------- 5
4.1. EXPLODED VIEW ------------------------------------------------------------------------------------------------ 5
5. BLOCK DIAGRAM ---------------------------------------------------------------------------------------------------- 6
6. Main Board Service Chart -------------------------------------------------------------------------------------------- 7~12
6.1. Main Board --------------------------------------------------------------------------------------------------------- 7~8
6.2. Main Board interface definition --------------------------------------------------------------------------------- 9~12
7. Power Board Service Chart ------------------------------------------------------------------------------------------- 13~17
7.1. Power Board ------------------------------------------------------------------------------------------------------- 13~14
7.2. Power Board interface definition-------------------------------------------------------------------------------- 15~17
8. SCHEMATIC DIAGRAM -------------------------------------------------------------------------------------------- 18~29
9. PCB LAYOUT ----------------------------------------------------------------------------------------------------------- 30~33
10. TROUBLE SHOOTING FLOW CHART ------------------------------------------------------------------------- 34~50
11/23/2016
T49V20NCM5CC01 Service Manual
1. PRECAUTION AND NOTICES
1.1. SAFETY PRECAUTIONS
This TV is manufactured and tested on a ground principle that a user's safety comes
first.However, improper use or installation may cause damage to the TV as well as to
the user.Carefully go over the following WARNINGS before installation and keep this guide
handy .
WARNINGS:
This TV should be operated only at the correct power sources indicated on the label on the
rear end of the TV. If you're unsure of the power supply in your residence, consult your
local dealer or power supply company.
Use only the special power adapter that comes with this TV for power input.
Do not try to repair the TV yourself as it contains no user-serviceable parts. This
TV should only be repaired by a qualified technician.
Do not remove the TV cabinet. There are high-voltage parts inside that may cause electric
shock to human bodies, even when the power cord is unplugged.
Stop using the TV if the cabinet is damaged. Have it checked by a service technician.
Put your TV only in a clean, dry environment. If it gets wet, unplug the power cable
immediately and consult your service technician.
Always unplug the TV before cleaning it. Clean the cabinet with a clean, dry cloth.
Apply non-ammonia based cleanser onto the cloth, not directly onto the TV screen.
Keep the TV away from magnetic objects, motors, and transformer.
Do not place heavy objects on the TV or power cord.
1.2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections
and the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltages, wattage, etc. Before replacing any of these
components read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety characteristics as specified in the parts list may
create shock, fire, or other hazards.
1.3. SERVICE NOTES
1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
2. Keep wires away from high voltage, high temperature components and sharp edges.
3. Keep wires in their original position so as to reduce interference.
4. Usage of this product please refer to user's manual.
-1- 11/23/2016
T49V20NCM5CC01 Service Manual
2. SERVICE TOOL & EQUIPMENT REQUIRED
1. SIGNAL GEN.
2. MULTIMETER
3. OSCILLOSCOPE
4. SCREW DRIVER
5. IRON
6. ABSORBER
7. SOLDER
8. DUMMY LOAD (8ohm/50W)
3. SPECIFICATIONS
3.1. PRODUCT SPECIFICATIONS
LCD Panel 49" TFT panel : BOEI490WU1
Power Management
DPMS compatible
< 0.5W
Displayable Resolution UHD(RGB) 3840X2160 (max.)
Pixel Dimension 0.27963(H)