Pioneer DC-221Z Service Manual page 32

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Test tape STD-608A Test tape STD-608A
DOLBY NR switch DOLBY NR switch ON
=
250 315500.
Fig. 12-8 Recording & playback frequency response tolerance zone (NORM)
Test tape STD-610 Test tape STD-610
DOLBY NR switch DOLBY NR switch ON
125 250 315 500
Fig. 12-9 Recording & playback frequency response tolerance zone (METAL)
315.500. «Tk
STD-608A (HIGH SPEED COPY)
OFF
Test tape
DOLBY NR switch
Test tape
DOLBY NR switch
6
5
4
3
2
1
oO
Ba
-2 +
"3 =
-4
"5
36
Ao
Fig. 12-10 Copy mode recording & playback frequency response (for reference purposes)
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