2.5 msec
CH-2 PROBE
H'D SW
PULSE
CH-1 PROBE
CTL PULSE
-Time/div. ; 5 msec
Setting of Scope
- Volt/div. ; CH-1 = 0.1V
CH-2 = 0.2V
6.5 msec
CH-2 PROBE
H'D SW
PULSE
CH-1 PROBE
CTL PULSE
-Time/div. ; 5 msec
Setting of Scope
- Volt/div. ; CH-1 = 0.1V
CH-2 = 0.2V
Alignments and Adjustments (VCR)
3-4
Samsung Electronics
3-2-2(E) LINEARITY ADJUSTMENT
(GUIDE ROLLER S,T ADJUSTMENT)
Fig. 3-8 (A) Tracking Preset Adjustment (4HD)
Fig. 3-8 (B) Tracking Preset Adjustment (2HD)
SCOPE SETTINGS
Fig. 3-9 Control Pulse Adjustment
CONTROL PULSE REMOVE
REMOTE
BUTTONS
_
+
_
+
Fig. 3-10 Test Point Position (Main PCB : Parts)
Test Points : JM113-H’D SW (head switching sync)
JM114-EnV (envelope waveform)
1. Play back the Mono Scope alignment tape (SP
Mode).
2. Observe the video envelope signal on the
oscilloscope after taking sync with the video
switching pulse.
3. Make sure that the video envelope meets the
specifications of Fig. 3-11 (especially for
minimum values).
Note :
a = Maximum output of the video RF envelope
b = Minimum output of the video RF envelope at the
entrance side
c = Minimum output of the video RF envelope at
the center point
d = Maximum output of the video RF envelope at the exit
side
Fig. 3-11 Envelope Waveform Adjustment
a
a b c d
c,b,d/a
63%
b
c
d
Содержание CXJ1352AX
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Страница 50: ...Exploded View Parts List 7 2 Samsung Electronics 7 2 Mechanical Parts Top Side Twin Deck ...
Страница 51: ...Exploded View Parts List Samsung Electronics 7 3 7 3 Mechanical Parts Bottom Side Twin Deck ...
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Страница 89: ...Block Diagram 9 4 Samsung Electronics 9 4 Deflection Block Diagram ...
Страница 90: ...Block Diagram 9 5 Samsung Electronics 9 5 Video Sound Signal Flow ...
Страница 91: ...10 Wiring Diagram Wiring Diagram Samsung Electronics 10 1 ...
Страница 94: ...PCB Layout Samsung Electronics 11 3 11 3 Main CONTROL ...
Страница 97: ...Schematic Diagrams 11 3 Samsung Electronics 11 3 VCR POWER BLOCK ...
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