Measuring
Measuring point (
*
)
No. Item instruments & Mode
Adjustment parts (
-
)
Adjustment procedure
Input signals
Adjustment level (
+
)
2-36
2 RF envelope
adjustment
1 Preparation
• Error on supply
side
Oscilloscope,
alignment tape
MC-1(NTSC)
MC-2(PAL)
Color bar portion
Play
(1) Set up the adjustment software (see section
2.12.3, “Setup”) and execute the program.
(2) If it is required to switch the auto tracking func-
tion, set [ATF] to “OFF”. When the ATF Value
appears, vary the tracking value as desired.
* ENV OUT [jig
connector]
* HID [jig connector]
- Supply guide roller
- Take-up guide roller
+ Make the wave-
forms flat. The drop
level should be less
than 3 dB with both
SUP and TU levels.
+ Flatness variation
should be less than
2 dB.
2.12.5 Compatibility Adjustment
Fig. 2-12-6 PC Display of Adjustment Software
NOTE
⋅ Be sure to clean the tape transport parts
and play a cleaning tape before proceed-
ing to the compatibility adjustment.
(1) Play alignment tape color bar portion.
(2) Observe the measuring points and adjust the
supply guide roller and take-up guide roller so
that the RF waveform is flat.
(3) Set [ATF] to OFF and vary tracking.
(4) Fine-adjust the supply and take-up guide roll-
ers to make the waveform exactly flat.
(5) Set the mode to EJECT, then set to the PLAY
mode and ensure that the RF waveform is flat.
Fig. 2-12-7
Error on
supply side
Error on
take-up side
Drag here to vary the tracking.
2-35
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