DOWNLOAD Sony KDL-46HX820 / KDL-55HX820 Service Manual ↓ Size: 4.45 MB | Pages: 56 in PDF or view online for FREE

1.-13 Attach Cover Ant (L EL)

1.-14 Attach Plug

-8-

POWER

GREEN:LED
RED: LED

Green Lights at Power On
Red Lights when recording ( only 
applicable in Japan and Europe models)

STANDBY

RED: One LED

Red Lights during standby

g

g

y

TIMER/PIC OFF

ORANGE/GREEN: Orange Lights during Timer activation 

and Green Lights during Picture Off.

Two LEDs

Blinking Pattern

Status

Picture Off/
Connecting/Tim

Standby LED Power /REC

Off

Off

Self Diagnosis

Off

RED Blink

Off

Standby
( by remote control off only )

Off

RED Lit

Refer to Blinking pattern of Self 
Di

i

d

Power On

Off

Off

GREEN

Connecting/Tim

Power Off
( by power button or AC off )

Off

Off

E

f

l ID

ORANGE

Off

GREEN Bli k

Off

Test Reset finish

ORANGE Lit

Red

GREEN Lit

Software Updating

ORANGE
Blink

RED Lit

Software Updating finish

ORANGE Lit

Off

GREEN Lit

Aging mode

Off

Off

GREEN Blink

Self Diagnosis

Off

RED Blink

Off

Blinking:0.5sec On / 0.5sec Off

Off

End of Aging mode

Off

GREEN Blink

Blinking:5sec On / 1sec Off

Blinking:3sec On / 3sec Off

Bli ki

0

O / 0

Off

Diagnosis mode

When safety shutdown occurs, Standby LED display reports the cause by using the lightning
patterns as indicated below. 

[REC][Sleep Timer][Power ON]

ORANGE

Off

RED

[Picture Off][On Timer][REC][Power ON]

GREEN

Off

RED

Error of panel ID

ORANGE
Blink

Off

GREEN Blink

Blinking:0.5sec On / 0.5sec Off

p

3.0sec

3.0sec

0 5sec

0.

5sec

3.0sec

0.5sec

Example: The figure above shows LED display when SHUTDOWN is caused by Balancer

Error. It repeats flashing for a specified number of times in 0.5sec/cycle and has a 3 seconds
interval of lighting off. Please note that a 3 seconds interval of lighting off is fixed regardless of abnormal state types.

-9-

Main Board (B*)

Harness (B* or/and G*)

Power Supply Board (G*)

Main Power Error

2

Main Board (B*)

Speaker

Power Supply Board (G*)

Main Board (B*)

Main Board/ DC Alert Error/ 

Audio Error

3

Power Supply Board (G*) and/or (G**)

LD Board 

Panel

Power Supply Board (G**)

Harness (G*/G**, Panel), LVDS Harness

4

Balancer Error/ MM SPI Error/ 

VLED Error

T Con  Error/ HFR Error/ FRC  

Panel (Tcon)

Main Board (B**)

TCon 

Panel Module

Harness(Tcon or/and LD Board)

Error

Panel ID NVM Error

5

FFC Connector
LD Board
Main Board (B*)

Light Source(Panel Module)

Power Supply Board (G*) and/or (G**)

6

Backlight Error

Main Board (B*)

Panel 

Wifi 

Main Board (B*)

Harness(Tcon or/and HEM Board)

8

Software Error

Temperature Error

7

Segment

Size

B*

Board 

Type

G*

Board 

Type

G**

Board 

Type

Harness(Tcon or/and HEM Board)

HEM Board

Tcon (Board)

EmItter Error  (3D models)

10

–10–

Type

Type

Type

2b-2

46

BATL

G5AW

2b-2

55

BATL

G6AW

G7A

Note: Details refer to Troubleshooting Section.

Green LED 

Blinking

No

Power

Remote

Network

Audio

2

3

4

5

6

7

8

10

Green LED 

non-stop 

Blinking

No Green Power 

LED (Dead Set)

Stationary 

colored 
lines or 

dots       

No video 

One of 

Inputs

No video 
all Inputs

No Remote

Wireless

can't connect

No Audio

Reference 

Symptoms - Shutdown. Power LED

blinking red diagnostics sequences

Video

 - missing or distorted

g

(

)

p

p

B* BOARD













G* BOARD







H* BOARD（IR）





HEM BOARD



RF Module（RF）





SPEAKER



Skype Module

Wifi Module





LD  BOARD



LVDS CABLE

TCON



LCD Panel









POWER POWER POWER

PANEL

(TCON)

PANEL

(Backlight)

TEMP

Software

EMIT-TER

AUDIO

FAN

(N/A)

: Most likely defective part

Note: Details refer to Troubleshooting Section.

: Most likely defective part.

: 

Secondary possible defective part.

: 

Not Applicable for this model.

Segment

Size

B*

Board 

Type

G*

Board 

Type

G*

Board 

Type

H* 

Board 

Type

–11–

Type

Type

Type

Type

2b-2

46

BATL

G5AW

HLT2

2b-2

55

BATL

G6AW

G7A

HLT2