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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY KV32XBR450 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 6 (click to view)


Self Diagnosis

Supported model

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/STEREO LED will automatically begin to ï¬ash. The number of times the LED ï¬ashes translates to a probable source of the problem. A deï¬nition of the STANDBY/STEREO LED ï¬ash indicators is listed in the instruction manual for the userâs 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/STEREO LED will ï¬ash 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 ï¬rst of the problem areas. Results for all of the following diagnostic items are displayed on screen. If the screen displays a â0â, and error has occurred.
No. of times STANDBY/ STEREO lamp ï¬ashes
Does not light

Diagnostic Item
Power does not turn on

Display Result

Probable Cause Location
⢠Power cord is not plugged in. ⢠Fuse is burned out (F5501)

Detected Symptoms
⢠Power does not come on. ⢠No power is supplied to the TV. ⢠AC power supply is faulty. ⢠Power does not come on. ⢠Load on power line is shorted.

+B overcurrent (OCP) (see Note 1)

2 times

2:0 or 2:1

⢠H.OUT (Q5030) is shorted. (D Board) ⢠+B PWM (Q5003) is shorted (D Board) ⢠IC9001, IC9002, IC9003 is shorted (C Board) ⢠IC6505 is faulty. (D Board) ⢠± 15V is not supplied. (D Board) ⢠IC5004 is faulty. (D Board)

Low B overvoltage (OVP) Vertical deï¬ection stopped

3 times 4 times

3:0 or 3:1 4:0 or 4:1

⢠Has entered standby mode. ⢠Has entered standby state after horizontal raster. ⢠Vertical deï¬ection pulse is stopped. ⢠Power line is shorted or power supply is stopped. ⢠No raster is generated. ⢠CRT cathode current detection reference pulse output is small.

White balance failure (not balanced)

5 times

5:0 or 5:1

⢠Video OUT (IC9001-IC9003) is faulty. (C Board) ⢠CRT drive (IC201) is faulty. (A Board) ⢠G2 is improperly adjusted. (see Note 2) ⢠+5 line is overloaded. (A, B Boards) ⢠+5 line is shorted. (A, B Boards) ⢠IC6007 is faulty. (A Board)

LOW B OCP/OVP (overcurrent/overvoltage) (see Note 3) Horizontal Deï¬ection stopped

6 times

6:0 or 6:1

⢠No picture

7 times

7:0 or 7:1

⢠No picture

Note 1: If a +B overcurrent is detected, stoppage of the vertical deï¬ection is detected simultaneously. The symptom that is diagnosed ï¬rst by the microcontroller is displayed on screen. Note 2: Refer to Screen (G2) Adjustment in Section 3-4 of this manual. Note 3: If STANDBY/STEREO LED ï¬ashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment

Display of Standby/Timer LED Flash Count
Diagnostic items +B overcurrent +B/Low B overvoltage Vert. deflection stopped White balance failure Low B error Horiz. deflection stopped Flash count 2 times 3 times 4 times 5 times 6 times 7 times Standby/Timer LED Lamp ON 0.3 sec. Lamp OFF 0.3 sec. Lamp OFF 3 sec.

* One ï¬ash count is not used for selfdiagnostic.

Stopping the Standby/Timer LED Flash Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER LAMP from ï¬ashing. Self-Diagnostic Screen Display For errors with symptoms such as âpower sometimes shuts offâ or âscreen sometimes goes outâ that cannot be conï¬rmed, it is possible to bring up past occurrences of failure on the screen for conï¬rmation.


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