Self Diagnostic Function; Overview Of Control Buttons; Led Display Control; Led Pattern - Sony KLV-28R412B Service Manual

Self Diagnostic Function

2-1. Overview of Control Buttons

LED Indicator
• Lights up in green when you select "Picture Off".
• Lights up in amber when you set the timer or
"Photo Frame Mode".
• Lights up in green when the TV is turned on.
• Flashes while the remote is being operated.

2-2. LED Display Control

Status LED Colour
Power Off ( AC Off and *1) OFF
Power On Green
Standby( by remote control
OFF
off only )
Picture Off Green
Set "Sleep Timer" Amber
Set "On Timer" ( Power On ) Amber
Set "On Timer"( Standby ) Amber
Picture Frame Amber
Failure Red Blinking
Amber/Green
Error of panel ID
6
Blinking
Amber
Software Updating
Blinking
SECTION 2
SELF DIAGNOSTIC FUNCTION
Amber = Red + Green
Remarks
*1 power switch off (by touch button)
The number of LED blinking indicates
cause of failure.
Blinking:0.5sec Amber/ 0.5sec Green
Blinking: 1sec On / 1sec Off
R410/412/413/420/422/423/424/425/426/427/428/430/433/435/
450/453/455/470/472/473/475/477/478/480/483/485/M5/M10B

2-3. LED Pattern

When safety shutdown occurs, Standby LED display reports the cause by using the lightning
.
patterns as indicated below
0.5sec
0.5sec
Example: The figure above shows LED display when SHUTDOWN is caused by Audio
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.

2-4. Standby LED Error Display

The Number of Standby LED Detection Items
(RED blinking)
2 Main Power Error
3 Audio Error
4 Panel Power Error
5 Panel I2C COMM Error
6 Backlight Error
3.0sec 3.0sec
Board Error Item
AC adapter Error
B* board Error
B* board Error
B* or Source board Error
B* board Error
B*Board Type:
B* Board Type
Size
PAN ASIA, CHINA EUROPE, AMERICA
28" BIS
32" BIS
40" BIS
48" BIS
ITC3
CHASSIS
-
BIL
BIL
BIL
8