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KDL-46HX855/55HX855  

20

 

Several models use a LVDS FFC Connector from the Main Board to the 

TCON Board. Currently there are three different types of connectors that 

are used. 

CAUTION: 
 

Refer to the illustration below when disconnecting or connecting the 

LVDS FFC Connector. Regardless of the connector type, DO NOT 

remove the LVDS FFC Connector by the reinforcement tab only. 

Correct

Incorrect

CAUTION: 
 

The LVDS FFC Connector can be inserted into the Main Board upside 

down. If it is inserted upside down, the pins on the LVDS FFC Connector 

will short-circuit and damage the board.

Inserted Correctly

Inserted Incorrectly

CAUTION: 
 

Regardless of the connector type, DO NOT remove the LVDS FFC 

Connector by the reinforcement tab only. 

1.  Slightly tilt the Main Board connector release away from the LVDS FFC 

Connector.

2.   Gently wiggle the LVDS FFC Connector to detach it from the Main 

Board.

Main Board

Reinforcement 

Tab

Tilt away from LVDS

1.  Gently press down on the release tab of the Main Board connector.

2.  Correctly holding onto the LVDS FFC Connector, pull out the connector 

while continuing to hold down the release tab of the Main Board 

connector.

Press down

Main Board

Reinforcement 

Tab

1.  Gently press down on the 2 release tabs of the Main Board connector.

2.  Correctly holding onto the LVDS FFC Connector, pull out the connector 

while continuing to hold down the release tabs of the Main Board 

connector.

Reinforcement 

Tab

Press down

Main Board

CAUTION: 
 

DO NOT insert the LVDS FFC Connector into the Main Board upside 

down. 

1.  While holding onto the LVDS FFC Connector, gently tilt the Main Board 

connector release towards the Main Board then slide the LVDS FFC 

Connector straight in.

Main Board

Reinforcement 

Tab

Tilt away from LVDS

1.  Gently press down on the release tab of the Main Board connector.

2.  Holding onto the entire LVDS FFC Connector, insert the LVDS FFC 

Connector into the Main Board connector.

Main Board

Reinforcement 

Tab

Press down

1.  Gently press down on the 2 release tabs of the Main Board connector.

2.  Holding onto the entire LVDS FFC Connector, insert the LVDS FFC 

Connector into the Main Board connector.

Reinforcement 

Tab

Press down

Main Board

KDL-46HX855/55HX855  

21

 

101 

1-458-353-21 

WIRELESS LAN CARD

 102  1-754-811-11  ANTENNA
 

 

 

(KDL-46HX855 ONLY)

 102  1-754-750-11  ANTENNA
 

 

 

(KDL-55HX855 ONLY)

 103  1-754-820-11  ANTENNA
 

 

 

(KDL-46HX855 ONLY)

 103  1-754-821-11  ANTENNA
 

 

 

(KDL-55HX855 ONLY)

 

104 

4-297-980-41 

BRACKET, SIDE (METAL C)

  105 

A-1873-550-B 

BAPS BOARD, COMPLETE

 

 

AFTER REPLACING THE MAIN BOARD, YOU MUST UPDATE THE      

 

 

SOFTWARE TO THE LATEST VERSION

 

106 

4-297-984-41 

BRACKET, UNDER (METAL C)

 

107 

A-1842-446-A 

HL BOARD, MOUNTED

 

108 

1-858-712-11 

SPEAKER BOX ASSEMBLY

 

109 

A-1843-430-A 

HEM3 BOARD, MOUNTED

 

110 

1-489-986-21 

SWITCH UNIT

 

111 

1-474-386-11 

G6 BOARD, COMPLETE

 

 

 

(KDL-46HX855 ONLY) 

 

111 

1-474-385-11 

G7 BOARD, COMPLETE

 

 

 

(KDL-55HX855 ONLY) 

 

112 

4-298-004-01 

SPACER (B)

 

113 

4-408-119-01 

CUSHION (PWB G)

  

ORDER THIS PART WHEN REPLACING THE POWER BOARD

 

 

114 

1-858-711-11 

SPEAKER BOX ASSEMBLY (WOOFER)

 

 ◇

 

4-256-393-01 

SCREW, +PSW M3X6 W12

  

●

 

2-990-421-41 

SCREW (+PSW) (M3X6)

109

107

106

101

102

103

114

105

104

108

110

111

112

113

J

Spacer(B) 

F

E

A

I

H

C

B

D

G

NOTES:
Refer to 

“Handling the LVDS FFC Connector” on page 20 

to disconnect the LVDS Connector.

The Cushion(PWB G) is not included with the Power Supply Board (G6/G7) and must be replaced when replacing the Rear Cover.
The Spacer(B) is not included with the Power Supply Board (G6/G7) and must be reattached to the replacement Board.

A

  Detach the Side Bracket and Bottom Bracket from BAPS Board.

B

  Remove screws and disconnect connectors from BAPS Board 

 

(Refer to

 “Handling the LVDS FFC Connector” on page 20 

instructions)

C

  Remove screws and disconnect connectors from G6/G7 Board. 

 

(Reattach the Spacer(B) to the replacement Power Supply Board before attaching the Board to the LCD Panel) 

D

  Slide-out Left and Right Speakers, then disconnect connectors.

E

  Release clips and disconnect connector from HL Board.

F

  Release clips and disconnect connector from HEM3 Board.

G

  Lift up Switch Unit and disconnect connector.

H

  Remove screws from Antennas.

I

  Remove screws and disconnect connector from Wireless LAN Card.

J

  Remove screws and disconnect connector from Speaker Box.

KDL-46HX855/55HX855  

22

Use the following precautionary guidelines when handling the LCD Panel Assembly to avoid material degradation or 

screen coating degradation.

A   

After removing the boards and connectors, note where the frame is on the LCD Panel. (Figure 1)

B  

Lift the LCD Panel by holding the top and bottom of the panel no less than 200mm from the edge with your palms on the 

back of the panel. (Figure 2)

C  

When setting the LCD Panel down, gently place the panel onto a soft cloth on a flat surface. (Figure 3)

200mm

200mm

FIGURE 2

CAUTIONS:
DO NOT lift the panel by holding the short side of the panel or by only holding the glass. (Figure 4 & 5)
DO NOT hold the panel with your palms on the front glass or by holding the panel at the corners of the panel. (Figures 6)
DO NOT place the panel down on its edge. (Figure 6)

CAUTION: The LCD Panel

bends when holding the short

side of the panel. 

FIGURE 1

FIGURE 3

FIGURE 4

FIGURE 6

FIGURE 5

KDL-46HX855/55HX855  

23

 

157 

4-408-577-01 

SHEET (METAL) UNDER

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

158 

4-426-131-01 

CUSHION, SR (M)

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

 

159 

4-298-303-02 

FRAME (46), SEL

 

 

 

(KDL-46HX855 ONLY)

 

159 

4-298-318-02 

FRAME (55), SEL

 

 

 

(KDL-55HX855 ONLY) 

 

160 

4-297-992-41 

SHEET, INSULATION (G6 46)

 

 

 

(KDL-46HX855 ONLY) 

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

 

160 

4-297-993-41 

SHEET, INSULATION (G7)

 

 

 

(KDL-55HX855 ONLY) 

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 
 

●

 

2-990-421-41 

SCREW (+PSW) (M3X6)

 

151 

NA 

LCD PANEL ASSEMBLY (P-MOD)

  

FOR ALL LCD PANEL AND TCON BOARD PART NUMBER  

 

   

 

 

INFORMATION REFER TO THE LCD PANELS SERVICE MANUAL

 

152 

4-298-305-01 

CLIP (M)

 

153 

4-300-810-01 

SHEET, THERMAL (ATREYU)

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

154 

4-408-435-01 

SHEET (METAL) SIDE

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

155 

4-426-130-01 

CUSHION, SR (L)

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

 

156 

4-421-301-01 

CUSHION FRM(BU)

 

 

 

(KDL-55HX855 ONLY) 

  

ORDER THIS PART WHEN REPLACING THE LCD PANEL

151

153

154

156

155

157

156

Corner

Block(R)

158

160

159

Corner
Block(R)

152

NOTE: The Thermal(Atreyu)Sheet, Sheet(Metal)Side, Sheet(Metal)Under, SR(L)Cushion, SR(M)Cushion, Cushion FRM(BU), Insulation 

Sheet(G6) and Insulation Sheet(G7) are not included with the LCD Panel and must be replaced when replacing the LCD Panel.

A

  Remove all the Clips from the LCD Panel.

B

  Remove screws from right and left Corner Joint.

C

  Remove screws from right and left Corner Block.

D

  Gently lift up Frame to detach from LCD Panel.

D

C

B

A

CAUTION: When cleaning the TV, be sure to unplug the power cord to avoid any chance of electric shock.

 

;

Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water.

 

;

If using a chemically pretreated cloth, please follow the instruction provided on the package.

 

;

Never use strong solvents such as a thinner, alcohol or benzine for cleaning. 

 

;

Periodic vacuuming of the ventilation openings is recommended to ensure proper ventilation.

 

;

Do Not

 use paper towels, any type of abrasive pad, rags, rubber or vinyl materials to clean the screen. Using these 

materials could easily scratch the screen which may result in permanent damage.

 

;

Do Not

 use any cleaning product containing alkaline/acid cleaner, scouring powder, or volatile solvent, such as alcohol, 

ammonia, benzine, thinner or insecticide. Using any of these harsh cleaners may result in permanent damage to the 

screen.

 

;

Do Not 

spray water or detergent directly onto the TV screen . If liquid drips into the bottom of the screen it may cause a 

failure.