SONY KLV-27HR3 SERVICE MODE LED BLINKING CODE AND POWER SUPPLY CIRCUIT

SONY KLV-27HR3 SERVICE MODE LED BLINKING CODE AND POWER SUPPLY CIRCUIT

SONY KLV-27HR3 

SERVICE MODE LED BLINKING CODE AND POWER SUPPLY CIRCUIT 

SELF DIAGNOSTIC SOFTWARE

The identification of errors within the WA1 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be displayed through the LED (Series of flashes which must be counted).

LED Error Code

LED ERROR CODES	ERROR DESCRIPTION
2	A BOARD ERROR
3	B BOARD ERROR
4	PANEL ERROR
5	EEPROM ERROR
6	IICBUS ERROR
9	TUNER ERROR
10	SOUND PROCESSOR ERROR
11	PANLE TV-SVP ERROR
12	CXA2163 ERROR
13	PORT EXPANDER 1 ERROR
14	PORT EXPANDER 2 ERROR

Service adjustments to this model can be performed using the supplied remote Commander RM-Y1108.

How to enter into the Service Mode

1. Turn on the power to the TV set and enter into the stand-by mode.
2. Press the following sequence of buttons on the Remote Commander.

(ON SCREEN DISPLAY)  > (DIGIT 5) > (VOLUME +) > (TV)

‘TT—’ will appear in the upper right corner of the screen. Other status information will also be displayed.
Move to the corresponding adjustment item using the up or down arrow buttons on the Remote Commander.
Press the right arrow button to enter into the required menu item.
Press the ‘Menu’ button on the Remote Commander to quit the
Service Mode when all adjustments have been completed.

White Balance adjustment (C/O

1. Select AV1.
2. Change the TV to Personal Mode and set the following registers.
Contrast - Max
Brightness - 50
Colour - 50
Backlight - Max
3. Input PAL CVBS 20 IRE Full Field Signal to AV1.
4. Enter the ‘SERVICE MENU’ using the cursor keys on the remote
commander.
5. Adjust CutOff registers:
NORMAL_PAL_RC (R cutoff)
NORMAL_PAL_BC (B cutoff)

Secam White Balance adjustment (C/O

1. Select AV1.
2. Change the TV to Personal Mode and set the following registers.
Contrast - Max
Brightness - 50
Colour - 50
Backlight - Max
3. Input SECAM CVBS 20 IRE Full Field Signal to AV1.
4. Enter the ‘SERVICE MENU’ using the cursor keys on the remote
commander.
5. Adjust CutOff registers:
SECAM_OFFSET_RC (R cutoff)
SECAM_OFFSET_BC (B cutoff)

PAL auto adjustment (RGB)

1. Select AV1 and input RGB signal. (PAL RGB: CB 100%Y/75%C
from signal generator).
2. Change the TV to Personal Mode and set the following registers.
Contrast - 90
Brightness - 50
Colour - 50
3. Set the TV in Service Mode (See above) and send “TT52” command.

SECAM auto adjustment (CVBS)

1. Select AV1 and input SECAM signal. (SECAM CVBS: CB 75%Y/
75%C from signal generator).
2. Change the TV to Personal Mode and set the following registers.
Contrast - 90
Brightness - 50
Colour - 50
3. Set the TV in Service Mode (See above) and send “TT53” command.
Note :While Auto adjustment is in process the RED LED is ON, till it finishes.

White Balance Adjustment

White Balance adjustment (H/L)

1. Select AV1.
2. Change the TV to Personal Mode and set the following registers.
Contrast - Max
Brightness - 50
Colour - 50
Backlight - Max
3. Input PAL CVBS 70 IRE Full Field Signal to AV1.
4. Enter the ‘SERVICE MENU’ using the cursor keys on the remote commander.
5. Adjust Highlight registers:
NORMAL_PAL_RD (R Drive)
NORMAL_PAL_BD (B Drive)

POWER SUPPLY CIRCUIT 

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