Thursday, November 12, 2015

SONY KDL-22EX550 - KDL-22EX553 - KDL-22EX555 - KDL-26EX550 - KDL-26EX553 - KDL-26EX555 - KDL-32EX650 - KDL-32EX653 - KDL-32EX655 LED FLASHING AND SERVICE MODE

SONY KDL-22EX550 - KDL-22EX553 - KDL-22EX555 - KDL-26EX550 - KDL-26EX553  - KDL-26EX555 - KDL-32EX650 - KDL-32EX653 - KDL-32EX655 

LED FLASHING AND SERVICE MODE

SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash. The number of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY LED will flash a set number of times to
indicate the possible cause of the problem.
If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .
SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:
To Bring Up Screen Test
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
DISPLAY >  CHANNEL 5 >VOLUME - > TV POWER

LED BLINKING CODES
STBY LED
Flash time

Service menu Item
name
(Screeen Display)
Diagnostic Item Description


2
MAIN_POWE
Main 12 V failure
3



DC_ALERT
Main 5.0/3.3/1.2 V failure
AUD_PROT
Audio amp. protection
HDMI_EQ
HDMI equalizer/switch I2C NACK
TU_DEMOD
Tuner or demodulator I2C NACK
4
-
Not used
5
P_ID_ERR
Panel ID EEPROM I2C NACK (Also panel power failure is a suspect)
6
BACKLITE
Backlight failure
 7
TEMP_ERR
Over temperature protection
TEMP_ERR
Temp. sensor I2C NACK

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen.
After you have completed the repairs, clear the result display to “0”.
Clearing the Self Check Diagnostic List
1. Error history and Error count : Press the Channel 8 => Channel 0 .
2. Panel operation time : Press the Channel 7 => Channel 0 .
Exiting the Self-diagnostic screen
To exit the Self Diagnostic screen, turn off the power to the TV by pressing the POWER button on the remote or the POWER button on the TV.
REAR COVER REMOVAL

HOW TO ENTER SERVICE MODE
1) Turn on the main power switch to place this set in standby mode.
2) Press the buttons on the remote commander as follows, and entering service mode.
3) Service mode display.
Note: First of all, when you enter Service Mode, you can see “Digital” service mode. Whenever you press “OPTIONS
DISPLAY >  CHANNEL 5 >VOLUME + > TV POWER CHANGE DATA
Note: “Digital” service mode don’t have to Save. (except “002 MODEL” and “005 CHPRSET” category)
1) Change Data of “Digital” service mode. (except “003 DIG_SRV_MODE” category)
a. Press “2 / 5” on remote to select (up / down) category.
b. Press “1 / 4” on remote to select (up / down) Item.
c. Press “3 / 6” on remote change (up / down) data.
2) Change Data of “Digital” service mode. ( “003 DIG_SRV_MODE” category)
“003 DIG_SRV_MODE” is one category of “Digital” service mode.
Please note because this operation is special.
a. Press “2 / 5” on remote to select “003 DIG_SRV_MODE”.
b. Press “1 / 4” on remote to select (up / down) Item.
c. Press “0 / 10” on remote to select item.
d. Press number key “1”~”9” directly. “*” stamp move.
e. Press “12 / enter / select” to decide and advance next step. Press “return”, when returning on the previous page.
SAVE CHANGING DATA
1) Write data for “Chassis” or “VPC” service mode
a. Press “Mute” on remote.
It shows green “SERVICE” changes to green “WRITE”.
b. Press “0” or “enter” on remote. Green “WRITE” changes to red “WRITE”. It indicate writing is processing.
c. After a while, red “WRITE” changes to green “SERVICE”. Writing process is done at this point.
2) TV reboot is necessary for applying data change.
WHITE BALANCE ADJUSTMENT
Note: Please execute this adjustment if necessary.
Change Data of “VPC” service mode. (“006 WB” category)
a. Press “1” or “4” on remote to select WB adjustment menu.
b. Change data by pressing “3” or “6”. Each range of these items is 0~255.
c. Press “mute”
”0” on remote to save the data.
“SERVICE” comment is changed to “WRITE”, indicating writing process.
d. After a while, “WRITE” comment returns to “SERVICE”, which means writing process is done.
VCOM ADJUSTMENT
Note: Please execute this adjustment if necessary.
1) Change Data of “VPC” service mode.
a. Select “002 VCOM” category by pressing “2 / 5” on remote.
b. Select “000 ENABLE” item by pressing “1 / 4” on remote.
c. Change ENABLE from “0” to “1” to enable VCOM adjustment.
d. Select “002 VCOM” category by pressing “2 / 5” on remote.
e. Select “001 ADJUST” item by pressing “1 / 4” on remote.
f. Change data by pressing “3 / 6” on remote controller.
g. Finish the adjustment when the picture seems OK.
Attention:
-Every time the data changed by pressing “3 / 6” Key, the VCOM pattern will display for 5s and in the mean time OSD will disappear, After the 5s period, VCOM pattern
will disappear and OSD will display again.
The 5s time can be adjust by data change.
-If pressing the “3/6” key again during the 5s period, the VCOM pattern display time will be extended to another 5s.
SET TO SHIPPING CONDITION
How to do shipping condition.
a. Move to “Digital” service mode.
Press “8” on remote.
It shows green “SERVICE” changes to green “RST-”.
Press “mute” on remote.
Added green “EXE” after green “RST-” .
d. Press “0” on remote. Green “EXE-RST” changes to red “EXE-RST”. It indicate writing is processing.
After a while, red “EXE-RST” changes to green “SERVICE”.
And all LED lights.
Writing process is done at this point.