Sony SLV-286EE - X-Value Adjustment

4-1-9. X-Value Adjustment
Purpose: To assure compatibility with other VTR’s.
Note : Before performing this adjustment, Tracking Preset
Adjustment must be always performed. (Refer to the
Service Manual.)
Turn off Auto Tracking and set to Manual mode.
Mode Playback
Signal HiFi alignment tape (HiFi 400Hz) or align-
ment tape ()VC-MH-1 1kHz)
Measuring Oscilloscope
instrument
/jig
Measuring CH-1: Pin RF of connector PB for RF
point board check
CH-2: SWP pin of connector RF for RF
board check ;
(Observe on the CHA head.)
Adjustment | X-value adjustment screw
locations
[Adjustment method]
© Adjustment by HiFi alignment tape
When the tracking is set at the center position (by pressing
the [_V ] and [A] keys simultaneously), adjust the RF
output to maximum.
Tracking:Is the RF output
obtained at maximum when
the tracking is at the center
position ?
X-value is normal
Is the maximum RF output
above or below the center
position ?
[Aldirection
(WZdirection
Set the tracking to the center
Position.
Adjust the tracking to the
center position.
Turn the X—-vaiue screw
clockwise.
Turn the X-value screw
counter—clockwise.
RF output |
:
Level
|
Tilt adjustment screw |
|
|
X-value adjustment
screw
Il
Start of drop
RF output IAN
Start of drop
Azimuth
adjustment
screw
RF
output
at maximum
Fig. 4-8
DAR