KDL-40Z4500, KDL-46Z4500, KDL-52Z4500 (serv.man3) - Sony TV Service Manual (repair manual). Page 6

– 5 –

2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the
cause by using the lightning patterns as indicated below.

Example:

The figure above shows LED display when
SHUTDOWN is caused by DC_ALERT 2. It repeats
flashing for a specified number of times in 0.3sec/
cycle and has a 2 seconds interval of lighting off.
Please note that a 2 seconds interval of lighting off
is fixed regardless of abnormal state types.

In standby mode, press the following sequence of buttons in
quick succession on the remote commander as shown below:

The following menu appears as shown below:

2.0 sec

2.0 sec

0.3 sec

0.3 sec

 LED Typ e

       Description

Remark

Status

Display

Power LED

 

Remark

 POWER

  

Green: LED

    Green lights at power ON.

 STANDB

Picture Off/
Timer

Y

 

Red: One LED

 

Red lights during standby.

  Green/Amber
  : Two LEDs

   Green lights during Picture 
   OFF and amber lights 
   during Timer activation.

POWER ON

 

Green lights

OFF

in a normal state.

STANDBY

OF

OFF

F

Red lights

Red flashes

Microcomputer is

in a sleep state.

Failure

Classify the trouble
causes by the no.
of red blinking.

Standby LED

Microcomputer is

POWER

HOME
MENU 

OK

INPUT 

SELECT 

VOLUME 

CHANNEL 

REMOTE 
SENSOR

LIGHT

SENSOR 

  POWER

INDICATOR 

 STANDBY

INDICATOR  

     PICTURE OFF/

TIMER INDICATOR 

i+

5

-

(ON SCREEN                            (DIGIT 5)                                (VOLUME -)                            (TV POWER)
   DISPLAY)

Note that this differs from 
entering the service mode 
(volume   +   )