Fluke 54200 - Digital Scan Test; High Resolution Test; Standard Resolution Test; Writing Current Adjustment

54200
Users Manual
4-64
Standard Resolution Test
Figure 4-95. Standard Resolution Test
Standard Resolution Test is a full field B/W pattern of
two vertical bars with color burst,. The first bar is
100% white followed by the second bar which
contains a 2.8 MHz frequency burst.
Applications:
This pattern can be used for VHS recorders to check
the resolution of the complete instrument, indicating
that the tape deck, and the recording and playback
path are proper adjusted.
High Resolution Test
Figure 4-96. High Resolution Test
High Resolution Test is a full field B/W pattern of two
vertical bars with color burst, the first bar is 100%
white, the second contains a 5 MHz frequency burst.
Applications:
This pattern can be used for SVHS and Hi8 recorders
to check the resolution of the instrument, indicating
that the tape deck, and the recording and playback path
are proper adjusted.
Writing Current Adjustment
Figure4-97. Writing Current Adjustment
Writing Current Adjustment is a full field red pattern
with a special luminance amplitude of
Y = 65.4% (Y = 458 mV) for 625 line systems and
67.8 IRE (Y = 485 mV) for 525 line systems and
R = 1; G = B = 0.505.
Applications:
This pattern is specially designed for the adjustment of
the luminance writing current of VCRs.
Digital Scan Test
Digital Scan Test offers six different test patterns:
•
ADC Check 1 and 2
•
Moving Block
•
Progressive Scan Check 1 to 3.
2.8 MHz
5 MHz