Thursday, November 05, 2015

HOW TO ENTER SERVICE MODE SONY KDL-52S4100 LED BLINKING CODE AND POWER SUPPLY CIRCUIT

SONY KDL-52S4100 

SERVICE MODE LED BLINKING CODE AND POWER SUPPLY 

RESETTING TO FACTORY DEFAULTS AFTER BOARD REPLACEMENT
1. Turn on the TV.
2. While holding down the UP button on the remote control, press the POWER button on the TV. The Initial Setup screen displays.
3. Select the language for the TV, then press the ENTER button on the remote control.
4. To start Auto Program, press the ENTER button on the remote control to select OK.
NOTE: Allow 30+ minutes for Auto Program to complete.
5. Using the customers information, reset their adjustments.
SELF DIAGNOSIS
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 .
LED BLINKING CODES
STBY LED Flash time
Diagnostic Item Description
2
Main Power Over Voltage Protection
3


DC_ALERT
DTT Error
Audio Abnormal Detection
4
Panel Balancer Error
5


T-CON Error
HFR Error
Panel ID NVM Error
6
Back Light Error (Panel Inverter)
7


Thermal Error
RGB sensor I2C Error
FAN Error (Not Detected. Display Only)

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 -> POWER ON
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
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.
DISPLAY > CHANNEL 5> VOLUME + > POWER ON 
Note: First of all, when you enter Service Mode, you can see “Digital” service mode.
Whenever you press “OPTIONS” or “JUMP” on remote, each service mode is changed.
“Digital” -> “Chassis” -> “Sub”
WHITE BALANCE ADJUSTMENT
Note: Please execute this adjustment if necessary.
Change Data of “Digital” service mode. (“006 WB” category)
a. Press “0” or “10” on remote to enter WB adjustment mode.
b. Press number key “1”~”6” directly. “*” stamp move.
c. Press “12 / enter / select” to decide and advance next step.
When returning on the previous page, press “return”.
d. Change data by number key “0”~”9” directly. (0-255)
e. Press “12 / enter / select” to save data.
It shows red “WRITE”. It indicate writing is processing.
f. Writing process is done at this point.
SAVE CHANGING DATA
1) Change Data of “Chassis” or “Sub” service mode
2) Write data for “Chassis” or “Sub” 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.
3) TV reboot is necessary for applying data change.
CHANGE DATA
Note: “Digital” service mode don’t have to Save. (except “002 MODEL” 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 “0 / 10” on remote to select item.
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.
3) Write data for “Digital” service mode. ( “002 MODEL” category)
Note: This procedure operation, when replaced the B board.
Note: Do not write a wrong segment or destination information in Product ID.
When the wrong setting is written, TV may not operate.
000 SEG …..
Product ID - segment information
001 DEST
….Product ID – destination information
a. Change data for each model.
b. Press “0” or “enter” on remote.
It shows red “WRITE”. It indicate writing is processing.
c. Writing process is done at this point.
CHANGE THE EMITTER OUTPUT LEVEL
Note: To reduce the emitter LED output power strength.
Change Data of “Sub” service mode
a. Select “001 TD” category by pressing “2 / 5” on remote.
b. Select “000 EMIT_STR” item by pressing “1 / 4” on remote.
c. Change data from “0” to “1” by pressing “3 / 6” on remote.
0: Strong (Default)
1: Weak
d. Save & Reboot

POWER SUPPLY CIRCUIT 
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