Sony KV-HF21M80 service manual Handling of SELF-DIAGNOSTIC Screen Display

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KV-HF21M80

RM-952

4.SELF-DIAGNOSTIC SCREEN DISPLAY

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurances of failure for confirmation on the screen:

[To Bring Up Screen Test]

In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

[Screen display] / channel [5] / Sound volume [-] / Power ON

˘

Note that this differs from entering the service mode (mode volume [+]).

Self-Diagnosis screen display

SELF DIAGNOSTIC

002 : 000

003 : 000

004 : 000

005 : 001

Numeral "0" means that no fault has been detected.

Numeral "1" means a fault has been detected.

101 : 000

5.HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”.

Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.

[Clearing the result display]

To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic screen is being displayed.

Channel [8] / 0

[Quitting Self-diagnostic screen]

To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

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Contents Trinitron Color TV Specifications KV-HF21M80Disassembly Table of ContentsDiagrams SET-UP AdjustmentsSelf Diagnostic Function Diagnostic Test IndicatorsDisplay of STANDBY/TIMER Light Flash Count Stopping the STANDBY/TIMER FlashSELF-DIAGNOSTIC Screen Display Handling of SELF-DIAGNOSTIC Screen DisplaySELF-DIAGNOSTIC Circuit +B overcurrent ªOCPºGetting Started Connect the antennaInsert the batteries into the remote Connecting the 3D WooferPreset the channels automatically Terminals at the rear of your TVUsing the … video input jacks Connecting optional componentsConnecting a camcorder/video game equipment Connecting audio/video equipment using the ÚPresetting channels Presetting channels manuallyPresetting channels automatically Watching the TV Skipping program numbersSetting the Wake Up timer Setting the Sleep timerChanging the on-screen display language Customizing the picture and sound Adjusting the picture and sound settingsSelecting the surround mode Selecting the picture and sound modesBlocking the channels Child Lock Changing the favorite channel settingViewing your favorite channels Selecting a favorite channelTroubleshooting Self-diagnosis functionTroubleshooting Remote Control Identifying parts and controlsChassis Assy Removal Service Position Note Remove F Bracket firstRear Cover Removal Bracket RemovalReplacement of Parts Terminal Bracket RemovalDegauss Coil Removal Removal of ANODE-CAP Removing Procedures Picture Tube RemovalSection SET-UP Adjustments Beam LandingConvergence Horizontal and Vertical Static ConvergenceYCH TLV Focus Adjustment G2 Screen and White Balance AdjustmentsAdjustments with Commander Entering Service ModeAdjustment Method Adjustment Item Table INF INS TXT OPM OPB KV-HF21M80 Item InformationBell Filter Adjustment Picture Quality Adjustments SUB Color AdjustmentSUB HUE Adjustment Board Adjustment After IC003 Memory ReplacementPicture Distortion Adjustment Item Number 00 0BBlock Diagram ProsessorFrame Schematic Diagram Circuit Boards LocationSchematic Diagrams and Printed Wiring Boards SecamBoard Waveforms Schematic Diagram of a 1/2 Board CN901 4P to SpeakerSchematic Diagram of a 2/2 Board SRTPrinted Wiring Board Board IC001 CXP86449-623SBoard C3 Board Schematic Diagrams of C3 and F boardsPrinted Wiring Boards C3 Board WaveformsSchematic Diagram of VM1 board SemiconductorsVM1 Board Exploded Views ChassisSection Electrical Parts List Elect 1MF REF. NO. Part no Description Diode RN4Z Coil Carbon Metal Metal Oxide SOCKET, CRT Coil VM1 Accessories and Packing Materials 965-767-01