Question about Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV

1 Answer

Unit turns on green light flashes for about 1 min. no picture. cooling fan not running, lamp not turning on. After green light stops flashing it turns to red (stnd by i think) and stays red even if unit is shut off. I have never replaced lamp and unit is about 6 yrs old.

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  • mbarnts Nov 06, 2010

    No, only the green light flashes and then goes to red and stays on. I have looked at the lamp and it is not broken. There is a red "lamp" light which indicates a bad lamp but it is not on.

  • mbarnts Nov 06, 2010

    P.S. yes it is the Sony KDF-55XS955. S/N-9057554

  • mbarnts Nov 07, 2010

    OK, great! I will replace lamp and let you know what the outcome is. It may take a little time to acquire lamp and replace but I will get back to you.

    Thank You,
    Mike

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  • 10,594 Answers

Hi,
Let me help you to solve this tv problem.
Does standby or any other light blink red at tv front when tv refuse to turn On?
If yes, please count how many times red light is blinking after 3 seconds long pause.
Did you inspected lamp in tv?
Is it Sony KDF-55XS955 tv or any other model tv?
Let me know above info to solve this problem.
Thanks.

Posted on Nov 06, 2010

  • Shahid Electronics
    Shahid Electronics Nov 07, 2010

    OK, as you said there is no red light blinking on tv front in whole process then it is lamp in tv that is weak and unable to produce light, lamp light on tv front will lit on broken dead lamp but existing lamp is still not dead nor broken so confusing internal monitoring system. Blinking red standby/power light is sign of any other internal problem in this model.
    Please replace lamp in tv to fix its issue.
    Require lamp art number is as follows:
    A1085447A ...
    LAMP BLOCK ASSY XL2200U
    and available with Sony Accessories Store for $200
    Hope these info will help you.
    Let me know if you have additional question.
    Thanks.

  • Shahid Electronics
    Shahid Electronics Nov 07, 2010

    No problem Mike, take your time to get lamp.
    Thanks.

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Error Indication Information
Error No. Error Information ERROR DESCRIPTION LAMP LED OSD LAMP OFF
(Note 3) (Note 4)
POWER LED TEMP LED
Note:
1.When any of the above errors has occurred, the LED will flash as shown above every 5 seconds.
2.When two or more errors have occurred at the same time, the LED will light up or flash as shown above, and then
change to another every 5 seconds in turn.
3.Warning OSD appears when the Air Filter is clogged 90%, accumulated operation time of the Lamp reaches 5000 hours,
or accumulated operation time of the Air Filter reaches 400 hours.
4.LAMP OFF: The LED will flash right after the Lamp goes off.
5.IC2301 is mounted on LCD Main C.B.A. which is included in the Projection Unit.
6.IC6001 is mounted on TV Main C.B.A.
Clogged air filter
more than 90%
15)
16)
17)
18)
1)
2)
3)
4)
5)
6)
7)
11)
8)
9)
10)
12)
13)
14)
- flashes 5 times -
every 5 seconds
IC2301(pin82) detects the clogged air filter, then indicates the
error when the air filter is clogged 90%.
Front Fan stop or
Lamp Fan stop
flashes orange
once every
5 seconds
- -
IC2301(pin12) detects the Front FAN stop or Lamp
FAN stop, then indicates the error when the Front FAN
or Lamp FAN is stopped.
Lamp Cover open
Temperature Sensor
short or open
flashes orange
twice every
5 seconds
flashes orange
3 times every
5 seconds
flashes green for
140 seconds.
flashing red for
60 seconds.
light up red.
flashes once
every 5 seconds
flashes once
every 5 seconds
flashes red for
10 minutes
flashes once
every 5 seconds
-
-
-
-
Abnormal
Temperature
flashes twice
every 5 seconds
flashes twice
every 5 seconds
- -
Request for Lamp
Replacement - - lights up
Power Ballast Error
(abnormal
Lamp voltage)
- -
flashes 3 times
every 5 seconds
Power Ballast Error
(abnormal
temperature)
- -
flashes 4 times
every 5 seconds
Power Ballast Error
(other causes) - -
- -
Request for Filter
Cleaning -
Abnormal Voltage
on 16 V line of
LCD Main C.B.A.
-
flashes twice
every 5 seconds
flashes twice
every 5 seconds
Abnormal Voltage
on 14 V line of
LCD Main C.B.A.
-
flashes 3 times
every 5 seconds
flashes 3 times
every 5 seconds
Abnormal Voltage
on 7 V line of
LCD Main C.B.A.
-
flashes 4 times
every 5 seconds
flashes 4 times
every 5 seconds
IC2301(pin76) detects the Lamp Cover Unit condition
(open or close), then indicates the error when the
Lamp Cover Unit is open.
IC6001(pin85) detects the Duct FAN stop, then
indicates the error when the Duct FAN is stopped.
IC2301(pin74 and 75) detects open or short of the Temperature
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error when Temperature Sensor is open or shorted.
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IC2301(pin74 and 75) detects the temperature attached near
the Front FAN by the Temperature Sensor (R2911) on Front
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temperature becomes more than 43 C (109 F).
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IC6001(pin86 and 87) detects open or short of the
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shorted.
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IC2301(pin74 and 75) detects the temperature attached near
the Lamp by the Temperature Sensor (R2901) on Lamp
Thermistor C.B.A., then indicates the error when the
temperature becomes more than 60 C (140 F).
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IC2301(pin11) detects the error of LCD Power C.B.A.,
then indicates the error when the temperature fuse
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IC2301(pin11) detects the error of LCD Power C.B.A. and Lamp,
then indicates the error when an inner malfunction of LCD Power
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is cracked.
IC2301(pin11) detects the error of the Lamp, then indicates the
error when the Lamp is short-circuit.
IC2301(pin48) detects +16V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +13V.
IC2301(pin47) detects +14V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +11V.
IC2301(pin45) detects +7V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
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IC2301(pin44) detects +3.3V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +2.5V.
flashes 3 times
every 5 seconds
flashes 4 times
every 5 seconds
Abnormal Voltage
on 3.3 V line of
LCD Main C.B.A.
-
-
-
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every 5 seconds
Forced cooling
The failure of Lamp
light up
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Temperature Sensor
short or open
-
-
Abnormal
Temperature
Duct Fan stop -
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Note: The Lamp time is stored in EEPROM (IC2305).
When accumulated operation time of the Air Filter reaches 400
hours, OSD (cleaning the Air Filter) appears on the screen.
Note: The Filter time is stored in EEPROM (IC2305).
During forced cooling, this indication is indicated.
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the Lamp, then the POWER LED is changed as follows.
1) POWER LED flashes green for 140 seconds (while turning on).
2) POWER LED flashes red for 60 seconds (while cooling).
3) POWER LED lights up red (standby).
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