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SONY
SERVICE MODE
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Service Mode is a "secret" menu found on newer Sony televisions (NTSC) and (PAL). This page provide information how to enter the Sony Service Mode.
Most SONY televisions have electronic service adjustments. This means that adjustments like picture geometry, white balance, and color presets are adjusted via on screen displays, using the remote control. For complete details, you need a service manual, available from the manufacture.
Sony is one of the firts on used this tecnology. However, today many manufacturers use the service mode in their television system.
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WARNING Without proper documentation and training, you can probably do quite a good job of messing up your television set, perhaps even damaging it. Once you enter service mode the first thing you should do is record all the original values BEFORE you change anything! - This is the only way to restore the television to it's original (factory default) state should it become necessary to do so. |
With the T.V. off, on the remote control, press in this order:
| PWR OFF] - [DISP], [5], [VOL+], [PWR ON] -or- [PWR OFF] - [DISP], [5], [PWR ON] |
The TV will turn on in service mode and the screen will look something like this:
NAVIGATE IN SERVICE MODE
[1] = Moves to Previous Menu Item
[4] = Moves to Next Menu Item
[3] = Adjusts Value Up
[6] = Adjusts Value Down
[MTS] = Toggles Stereo/Mono Audio
SAVE NEW SETTING
[MUTE], after [ENTER] = stores NEW service mode settings to NVRAM
RESTORE USER SETTINGS
[8], after[ENTER] = Restores All *USER* settings to factory defaults
RESET VALUES
[0], after[ENTER] = Read Default service mode value from stored settings. (service mode reset)
LEAVE SERVICE MODE
[PWR OFF] = Leave Service Mode any settings not written will be in effect until TV is unplugged or a Reset is performed. BEFORE storing NEW settings - unplug TV from wall, wait a few seconds, then plug back in, turn TV set on - All settings not written will have been lost.
First, turn off power with the main switch on the front panel.
Hold the plus and minus buttons on the front panel and turn on power. Wait for picture, then release the plus and minus buttons. It now shows "TT" (test mode) on screen.
Once "TT" isdisplayed, select a number from the remote; The newer Sony televisions use a different procedure to senter service mode:
Turn on the main power switch and enter into the stand-by mode, after press the following sequence of buttons on the Remote Control:
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[DISP/INFO], [5], [VOL+], [PWR ON] |
The television will turn on and "TT" will appear in the upper right corner of the screen. Other status information will also be displayed. Press "MENU" on the remote control to obtain the following menu on the screen:
Picture Adjustment
Geometry
Wide
IC Status
MSP
Current TV status
Move to the corresponding adjustment using the button on the remote. Press the + button to enter the selected adjustment. Turn off the power to quit the service mode or enter 0, 0 (zero twice) when adjustments have been completed.
SERVICE MODE COMMANDS
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ITEM
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DESCRIPTION
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RANK
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DEFAULT
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SYS
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Color
System
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0 - 3
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1
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AFC
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AFC loop Gain
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0 - 3
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1
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VPOS
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Vert. Position
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0 - 31
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15
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VSIZ
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Vert. Size
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0 - 63
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20
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VLIN
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Vert. Linearty
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0 - 15
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6
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VSCO
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S.Correction
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0 - 15
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7
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HPOS
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H. Position
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0 - 15
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11
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GDRV
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Green - Drive
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0 - 31
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17
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BDRV
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Blue - Drive
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0 - 14
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14
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GCUT
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Green - Cut off
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0 - 7
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7
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BCUT
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Blue - Cut off
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0 - 15
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7
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TOT
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Chroma TOT- Filter
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0 - 1
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1
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NR
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Noise Reduction
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0 - 1
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0
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SCON
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Sub-Contrast
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0 - 15
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6
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SHUE
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Sub-Hue
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0 - 15
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8
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SCOL
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Sub-Color
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0 - 15
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8
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SBRT
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Sub-Brightness
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0 - 63
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34
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SSHP
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Sub-Sharpness
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0 - 15
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11
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RON
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Red-off
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0 - 1
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1
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GON
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Green-off
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0 - 1
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1
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BON
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Red-off
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0 - 1
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1
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PREL
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Pre-Over Shoot
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0 - 7
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4
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AXIS
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Axis SW
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0 - 1
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1
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DCOL
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Dynamic - Color
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0 - 1
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0
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REF
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Refrence - Position
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0 - 3
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2
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ABLM
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ABL Mode
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0 - 3
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2
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CROM
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Chroma Trap SW
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0 - 1
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1
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OSDL
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OSD Level
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0 - 1
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0
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Y-DC
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DC Transmission
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0 - 7
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5
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GAMM
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Gamma
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0 - 7
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0
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VEXT
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V Sync Extend
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0 - 1
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1
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VZOM
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HV Comp
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0 - 7
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4
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CDMD
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V Countdown
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0 - 1
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0
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RGBL
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RGB Limit
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0 - 3
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0
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YDLY
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Y Delay
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0 - 3
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0
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SBAL
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Left - Volume
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0 - 15
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7
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SBAS
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Sub - Bass
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0 - 15
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7
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STRE
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Sub - Treble
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0 - 15
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7
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PHOR
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Horizontal Size
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0 - 63
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8
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PE - W
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E-W Correction
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0 - 63
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23
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PCOR
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E-W Corner
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0 - 15
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7
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PTRP
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Trap Correction
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0 - 63
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16
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HCMP
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H Compensation
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0 - 15
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6
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DISP
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Display Position
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0 - 63
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8
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PADJ
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B+ Adjustment
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0 - 63
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34
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ID-0
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ID-0
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0 - 256
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*
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ID-1
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ID-1
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0 - 256
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*
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ID-2
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ID-2
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0 - 256
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*
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ID-3
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ID-3
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0 - 256
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*
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ID-4
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ID-4
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0 - 256
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*
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* Chassis BA3
Thanks to: Anthony W. Haukap