Samsung TB14C52S/XEC Service Manual page 30

Alignments and Adjustments (Mechanical)
4-5-1(e) A/C HEAD POSITION (X-POINT). ADJUSTMENT (PAL SYSTEM ONLY)
1. Play back the mono scope alignment tape.
2. Connect Ch1 scope probe to ÒCTRLÓ and Ch-2 scope probe to ÒHÕD SWÓ.
Trigger on the head-switching pulse.
3. Set the tracking preset to 7 msec using the ÒFineÓ tracking buttons
4. Connect Ch1 scope probe to ÒENVÓ; connect Ch-2 to ÒHÕD SWÓ and trigger on Ch-1.
5. Insert the adjusting driver (+) into the X-position adjusting gear. Adjust the driver in either direction
for maximum envelope waveform.
6. Note: Since the adjusting gear unit may be damaged, do not adjust the X-point by using force. After
turning the X-point adjusting screw (D) slightly counter-clockwise, perform the adjustment and then
tighten the screw.
Setting of Scope
-Volt/div. ; CH-1 = 0.1V
CH-2 = 0.2V
CH-2 PROBE
H'D SW
PULSE
CH-1 PROBE
CTL PULSE
Setting of Scope
-Volt/div. ; CH-1 = 0.1V
CH-2 = 0.2V
CH-2 PROBE
H'D SW
PULSE
CH-1 PROBE
CTL PULSE
4-22
-Time/div. ; 5msec
4H'd : 7msec
2H'd : 2mesc
Fig. 4-5-5 Tracking Preset and Control Adjustment
Only for Models. SV-20U/30U/40U/60U/100U
VR3705/VR3805/5705/5805/8705
-Time/div. ; 5msec
4H'd : 7msec
2H'd : 2mesc
Fig. 4-5-6 racking Preset and Control Adjustment
Only for Models: sv-70U/90U/120U/140U/160U
VR5805/VR5855/5905/8905
/
REMOTE
CONTROL PULSE ADJUSTMENT
BUTTONS
PUSH
TRACKING
TRACKING
PUSH
REMOTE
CONTROL PULSE REMOVE
BUTTONS
PUSH
FINE
FINE
PUSH
on the remote control.
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