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3-10. FE OSC CHECK
Purpose :
Check the oscillating frequency and level of
the flying erase (FE) signal.
the flying erase (FE) signal.
Adjustment error :
If REC-PAUSE recording is repeated, un-
erased area is left in the junctions between the
editings which results in increase of noise or
previous picture can be seen.
erased area is left in the junctions between the
editings which results in increase of noise or
previous picture can be seen.
Mode
CAM-REC
Signal
Any signal
Measurement Point
CN101 pin !§
Measuring Instrument
Oscilloscope and frequency counter
Adjustment Page
—
Adjustment Address
—
Specification Value
A=7.0Vp-p or more (MP mode)
A=6.0 ± 1.0Vp-p (ME mode)
f=7.2 ± 0.5MHz (MP/ME mode)
A=6.0 ± 1.0Vp-p (ME mode)
f=7.2 ± 0.5MHz (MP/ME mode)
Adjustment procedure:
Order
Page
Address
Data
Procedure
1
Insert a normal MP type tape.
2
Make a recording.
3
Check that the FE signal level satisfies the specification.
4
Check that the FE signal frequency satisfies the specification.
5
Insert a normal ME type tape.
6
Make a recording.
7
Check that the FE signal level satisfies the specification.
8
Check that the FE signal frequency satisfies the specification.
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