SONY KDS-R50XBR1 _ KDS-R60XBR1 _ LED BLINKING CODES AND OTHER FAULT DETAILS

SELF DIAGNOSIS FUNCTION

• This device includes a self-diagnosis function.
• In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is possible to predict the abnormality location by the number of blinks. The Instruction Manual describes blinking of the POWER/STANDBY indicator.
• If the symptom is not reproduced sometimes in case of a malfunction, there is recording of whether a malfunction was generated or not. Operate the remote command to confirm the matter on the screen and to predict the location of the abnormality.

DIAGNOSIS ITEMS AND MALFUNCTION LOCATION

• When a malfunction occurs the POWER/STANDBY indicator only blinks for one of the following diagnosis items. In case of two or more malfunctions, the item which first occurred blinks. If the malfunctions occurred simultaneously, the item with the lower blink count blinks first.
• The screen display displays the results regarding all the diagnosis items listed below.  The display "0" means that no malfunctions occurred.

Diagnosis Item	Number of times POWER/STANDBY indicator blinks	Probable Cause Location	Defected symptoms
Temp error	2 times	·         Set temperture is high. ·         Temp sensor connector is not attached securely. (CN7020 on HB board, CN7180 on S2 board)	No picture/No sound
Lamp cover error	3 times	Lamp cover is not attached securely. Lamp is not set securely.	No picture/No sound
Fan stopped	4 times	Fan power is not supplied. Fan connector is not attached securely. Fan caught wires or harness.	No picture/No sound
Lamp driver error	5 times	Lamp driver is faulty	No picture/No sound.
Low B error	6 times	B_12V is not supplied (GT board)	No picture/No sound
Audio error	7 times	·          Short-circuit of Audio power supply line. ·          Blow out of fuse. (PS3001 on K board). ·        IC failure.  (IC3005 on K board).	No picture/No sound
D-OVP error	8 times	B -12V is over voltage.  (B board).	No picture/No sound
ATSC OVP	10 times	Q_10.5V is over voltage.  (GT board).	No picture/No sound
Lamp error	LAMP-LED flashes	Lamp for the light source burns out.	No picture/No sound

RELEASE OF POWER/STANDBY LED BLINKING

• The POWER/STANDBY indicator blinking display is released by removing the plug from the power or leaving for 2 minutes.

SELF DIAGNOSIS SCREEN DISPLAYS

• In cases of malfunctions where it is not possible to determine the symptom such as when the power goes off occasionally or when the screen disappears occasionally, there is a screen display on whether the malfunction occurred or not in the past (and whether the detection circuit operated or not) in order to allow confirmation.

SCREEN DISPLAY

 ======================

 SELF CHECK

1     LAMP_ERROR      0

2     TEMP_ERROR      0

2     LAMP_TEMP        0

3     LAMP_COVER      0

4     FAN_ERROR        0

5     LAMP_DRIVER    1

6     LOWB_ERROR     0

7    AUDIO_PROT       0

8    D_OVP                 0

10  ATSC_OVP           0

======================

Numeral "1" means a fault was detected one time

Numeral "0" means that no fault was detected.

SELF DIAGNOSIS SCREEN  [TO ENTER AND TO EXIT]

• TO ENTER:  Quickly press the remote command button in the following order from the standby state.
• {DISPLAY => CHANNEL-5 => VOLUME 9 - ) => POWER}  [Be aware that this differs from the method of entering the service mode (Vol +).]
• TO EXIT:  When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.

SELF DIAGNOSIS FUNCTION OPERATION

1. Temp:  When the temperature sensor (for Ambient) on the S1 board detects high temperature or the temperature sensor (for Lamp) on the S2 board detects high temperature or the temperature sensor (for Panel) on the C board detects high temperature, the DE-micro (IC5) turns off the lamp.
2. Lamp cover:  The rib at the back of the lamp cover closes the SW on the T1 board. The lamp closes the SW on the T2 board.  It is monitored by DE-micro (pin63 of IC5) and turned off the lamp when it is opened.
3. Fan:  Fan rotation is detected by ‘‘FAN-PROT” and the DE-micro (pin92 of IC5) turns off the lamp when it is ‘‘high”.
4. Lamp Driver: When the ‘‘LAMP-PROT” (pin83 of IC5) is high, the lamp is not turned on.  If the ‘‘LAMP-HV-DET” (pin94 of IC5) is low at the same time, it classified as no high voltage of the lamp driver.
5. Low B error:  When no ‘‘D5V (SW_5V)” is detected, pin 129 of TV-micro (IC7002) is low and it turns off the main power. (for example, blowout of thermal fuse).
6. Audio:  When DC voltage is detected at the speaker output, ‘‘SP-PROT” (pin102 of IC5) is low and it turns off the main power.
7. D-OVP:  Be not in use.
8. Panel error:  When there is not ack from the temperature sensor on the S1, S2 and C board or IIC line connector (CN2303: ASU board, CN7956: DSU board, CN6901: C board) is not seated securely. it is monitored by DE-micro.
9. ATSC-OVP:  Be not in use.
10. Lamp:  When the ‘‘LAMP-PROT” (pin83 of IC5) is high, the lamp is not turned on.  If the ‘‘LAMP-HV-DET” (pin94 of IC5) is high at the same time, it classified as no lamp or a dead lamp.