SONY KDL-40 D3100-KDL-46D3100 SERVICE MODE – LED BLINKING CODES AND CAUSES – LCD TELEVISION REPAIR

SONY KDL-40 D3100-KDL-46D3100 Service mode – led blinking codes and causes – LCD television repair

Category: LCD Television Service and repair 

Contents of this article 

• How to access to service mode 
• Led blinking code
• Self Diagnostics 

SONY KDL-40D3100-KDL-46D3100 

SELF DIAGNOSTICS 

The identification of errors within the WAX3F 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 CODES 

Monitoring Items	Number of Flashes of Red LED
Main Power Supply Voltage Error	2
DC_ALERT1	3
DC_ALERT2	4
DC_ALERT3	5
Backlight Error	6
Internal Temperature Error	7
Audio Error	8
Fan Error (Not Used)	9
Digital FE Error	10
Trident Error	11
HFR Error (Not Used)	12
Balancer Error	13
T-CON Error	14

Service adjustments to this model can be performed using the supplied remote Commander RM-ED009.
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 + > POWER ON  

Set up of AD calibration1 adjustment for terrestrial analog

 The following adjustments are done via ECS.

1. Send ECS_ADJUST_LEVEL_SETTING_INIT command.
2. Set: SREG_NR = 3 (High), HREG_P4_CVD2_85[2:0] = 0 and
ADJ_COLOR_PAL = 5.
3. Set the following registration items.

Screen Size	40"	46"
SREG_TARGET_Y_RF	165	165
SREG_TCD3_CONT_PAL_RF	128	128
SREG_TCD3_SAT_PAL_RF	128	128
SREG_TCD3_HUE_PAL_RF	128	128

Y signal calibration1 adjustment for terrestrial analog.

1. Input PAL colour bar 75%Y, 75%C via terrestrial input.

2. Send ECS_ADJUST_TCD3_CONT_RF command.
3. Read the value of S-REG_APL_LUMA via ECS. Confirming that the value is within spec of the table below.

S-REG_APL_LUMA >  SREG_TARGET_Y_RF±2

C signal calibration1 adjustment for terrestrial analog.

1. Send ECS_ADJUST_TCD3_HUE_RF command.
2. Read SREG_AVE_VAL_B_AREA0 via ECS. (READ_AREA = 0).
3. Read SREG_AVE_VAL_B_AREA6 via ECS. (READ_AREA = 6).
4. Confirm that 8 bits of MSB of item number 2) and 3) are within spec of the table below.

SREG_AVE_VAL_B_AREA* difference > ±2

5. Read SREG_TCD3_SATURATION via ECS.
6. Restore the original value. SREG_NR = 4 (Auto).
7. Send ECS command ADJUST_LEVEL_SETTING_CLR

Gamma Adjustment

Note: Before Gamma adjustment can begin the set needs 20 minutes aging with an ambient temperature between 22 to 28 degrees centigrade.

Preparation before Gamma Adjustment

1. Set SREG_BL_MANU<2> = 1.
2. Set SREG_MUTE_DISPLAY = 0.
3. Set SREG_BL_GAIN = 255.
4. Send ECS command OSD_OFF.
5. Send ECS command CSC_BYPASS_INIT_SET.
6. Wait for successful retrieval.
7. Set SREG_BRIGHT = 100(max).
8. Set SREG_ECO_MODE = 0(Standard).
9. Set SREG_TEST_G_LEVEL = 255.
10. Set SREG_GAMMA_EN<6> = 0(OFF).
11. Measure ‘maximum brightness’.
12. Confirm ‘maximum brightness’ dataover 410cd/m^2.
If the brightness is lower than 410cd/m^2 consider the panel as no good

Set up mode for Gamma Adjustment

1. Set SREG_BRIGHT = 50.
2. Set SREG_GAMMA_EN<6> = 1 (On).
3. Set SREG_COL_MTRX_IDX_OFF = 4.
4. Set SREG_G_GAM_IDX_OFST = 15.

Set up Trident Internal SG and Brightness measurement

1. Set up SREG_TEST_G_LEVEL = 204.
2. Measure brightness A.
3. Set up SREG_TEST_G_LEVEL = 102.
4. Measure brightness B.
5. Set up SREG_MEASURE_GAM_01 = (brightness B/brightness A)*10000.
6. Send the ECS command: GAMMA_TBL_SEARCH_1.
7. Set up SREG_TEST_G_LEVEL = 153.
8. Measure brightness C.
9. Set up SREG_MEASURE_GAM_02 = (brightness C/brightness A)*10000.
10. Send the ECS command: GAMMA_TBL_SEARCH_02.

White Balance Adjustment

1. Set up SREG_COLOR_TEMP = 0 (Cool).
2. Set up SREG_TEST_G_LEVEL = 204 (80 IRE).
3. Adjust SREG_WB_GAM_R(B)05 chroma values so that they are within tolerance in the table below.

40" > U0.1915 > V0.4322  > TOLERENCE <0.0008

46" U0.1907 > V0.4312 > TOLERENCE <0.0008

5. Set up SREG_TEST_G_LEVEL = 128 (50 IRE).
6. Adjust SREG_WB_GAM_R(B)04 chroma values so that they are within tolerance in the table below.

40" U 0.1912 > V0.4316 > TOLERENCE 0.0008->0.0014

46" U 0.1905 > V 0.4316  > TOLERNCE 0.0008 ->0.0014

11. The value of WB_GAM_R(B)01 is determined by the following conditions.
a).For 40 inch models
# WB_GAM_R01 = WB_GAM_R02 - (WB_GAM_R03 - WB_GAM_R02)
# WB_GAM_B01 = WB_GAM_B02 + {(WB_GAM_B03 -WB_GAM_B02)}/2
a).For 46 inch models
# WB_GAM_R01 = WB_GAM_R02 - (WB_GAM_R03 - WB_GAM_R02) x 2
# WB_GAM_B01 = WB_GAM_B02 - (WB_GAM_B03 -WB_GAM_B02)
12. The value of WB_GAM_R(B)06, WB_GAM_R(B)07 is determined by the following conditions.
a).For 40 inch models
# WB_GAM_R06 = WB_GAM_R05 + {(WB_GAM_R04 - WB_GAM_R05)} / 2
# WB_GAM_B06 = WB_GAM_B05 - {(WB_GAM_B04 - WB_GAM_B05)} / 2
# WB_GAM_R07 = WB_GAM_R04
# WB_GAM_B07 = WB_GAM_B05 - (WB_GAM_B04 - WB_GAM_B05)
a).For 46 inch models
# WB_GAM_R06 = WB_GAM_R05 - {(WB_GAM_R04 - WB_GAM_R05)} / 2
# WB_GAM_B06 = WB_GAM_B05
# WB_GAM_R07 = WB_GAM_R05 - (WB_GAM_B04 - WB_GAM_B05)
# WB_GAM_B07 = WB_GAM_B05 - (WB_GAM_B04 - WB_GAM_B05)
13. Send ECS command: WB_SAVE.