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| ==Service Mode==
| | {{BA-6 Service Mode}} |
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| ===Entering Service Mode===
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| To enter service mode, follow this sequence while the TV is in standby (power off):
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| # Press '''DISPLAY''' on the remote
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| # Press '''5''' on the remote
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| # Press '''VOLUME +''' on the remote
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| # Press '''POWER''' on the remote
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| Each button must be pressed within one second of the previous button. The service mode display will appear on screen showing adjustment categories and values.
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| ===Important Notes===
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| * Always record original values before making changes
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| * Only adjust settings if you understand their function
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| * Some adjustments are critical for proper operation and safety
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| * After replacing certain components (especially deflection or high voltage related), specific adjustments must be performed
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| * The service mode is separate from the self-diagnostic mode
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| ===Service Mode Display===
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| When service mode is active, the screen displays:
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| * '''Mode''' - Current adjustment mode (e.g., \"service\")
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| * '''Category''' - Current category (e.g., \"defl\", \"video\", \"audio\")
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| * '''Item''' - Current adjustment item name
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| * '''Item Data''' - Current value for the selected item
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| * '''Signal Type''' - Current video signal type (e.g., \"ntsc\")
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| ===Navigation Controls===
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| ====Remote Control Functions====
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| * '''1''' or '''4''' - Select different adjustment items (move up/down through items)
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| * '''3''' or '''6''' - Change the data value (increase/decrease the current value)
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| * '''MUTING''' then '''ENTER''' - Save changes to memory (LED turns green then red)
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| * '''8''' then '''ENTER''' - Initialize/reset current category to default values
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| * '''0''' - Not used for service adjustments
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| * '''POWER''' (off then on) - Exit service mode
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| ===Memory Operations===
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| ====Saving Adjustments====
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| After making any adjustment:
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| # Press '''MUTING''' (the status indicator will turn green)
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| # Press '''ENTER''' (the indicator will turn red confirming the write)
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| The display will show \"write\" when the memory operation is in progress.
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| ====Initializing Settings====
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| To reset a category to factory defaults:
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| # Navigate to the desired category
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| # Press '''8'''
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| # Press '''ENTER'''
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| This should be done when adjusting IDs 0-6 or when replacing IC002 (memory chip).
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| ===Verifying Saved Settings===
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| To confirm adjustments were saved properly:
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| # Unplug the AC power cord
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| # Plug the power cord back in
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| # Re-enter service mode
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| # Navigate to the adjusted items to verify the values were retained
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| ===Exiting Service Mode===
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| Turn off the TV using the power button on either the remote control or the main unit. The TV will exit service mode and return to normal operation.
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| ===Adjustment Categories===
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| The service mode contains multiple categories of adjustments:
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| * '''DEF''' (Deflection) - Geometry adjustments (H/V size, position, linearity, etc.)
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| * '''16:9''' - Wide mode adjustments
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| * '''VP1''' - Video processor settings (color, brightness, contrast, sharpness, AKB)
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| * '''VP2''' - Additional video processing (VM, color killer, aperture, gamma)
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| * '''VIVID/STD/MOVIE/SPORTS''' - Picture mode presets
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| * '''Y''' - Y/C separation settings
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| * '''C''' - Chroma decoder settings
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| * '''RGB''' - RGB drive and cutoff adjustments
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| * '''DEFD''' - Additional deflection parameters
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| * '''OTHER''' - Miscellaneous settings
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| * '''OSD''' - On-screen display settings
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| * '''S/W AKB''' - Software auto kinescope bias
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| * '''AUDIO''' - Audio processor settings
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| * '''MICRO''' - Microprocessor settings
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| * '''FEATURE''' - Feature ID settings
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| ===Self-Diagnostic Mode===
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| The unit also has a separate self-diagnostic function (see the Self-Diagnostic section for details on accessing error codes and diagnostic information).
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| ===Related Adjustments===
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| For specific adjustment procedures (white balance, geometry, focus, etc.), refer to the service manual sections on set-up adjustments and circuit adjustments.
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