Denon DR-F7 - Page 19

7. Adjusting the Meter
After adjusting the playback level, play back the test tape
(TEAC MTT-150) and adjust Vr 103 (L ch), Vr 203 (R ch)
so that the VU meter indicates +3 VU when the LINE OUT
voltage is 0 dB (0.775 V).
8. Adjusting the Recording Section
(1) Adjusting the record/playback overall frequency re-
sponse.
1)
2)
Load the test tape MAXELL XL-II (C-60); record
a signal with an input level of —38 dB, 1 KHz at
the LINE IN terminal; play back this recording.
Change the frequency of the input signal from
1 KHz to 12 KHz with same levels —38 dB; record
and play back; adjust Vr 106 (L ch), Vr 206 (R
ch) so that the output level is about equal com-
pared to the 1 KHz signal output level. In the case
of DR-F6, adjust Vr 402 (L ch), Vr 502 (R ch).
Check to make sure that the overall frequency
response meets the specifications in the diagram
below.
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© UNE OUT
(2) Adjusting the record/playback levels
(3
1)
2)
Load the test tape MAXELL ΧΙΙ! (C-60) and
record a signal of 1 KHz (-38 dB).
Adjust Vr 105 (L ch), Vr 205 (R ch) so that the
output level is the same when the MONITOR
switch is switched from SOURCE to TAPE posi-
tion. In the case of DR-F6, adjust Vr 401 (L ch),
Vr 501 (R ch).
Checking the Dolby C record/playback overall fre:
quency response
1)
2)
3)
Set the DOLBY NR switch to the “C” position.
Using the test tapes DXM, XL-Il, DX-3, perform
record /playback in the same manner as 8-(1).
Check to make sure that the record/playback over-
all frequency response meets the specifications in
the diagram.
Ρ8 Amp
Record/Playback Overall Frequency Response
Tape : MAXELL Χι-Π 0-60
Tape Select : CrO;
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¡REE Lid | zz Level : Dolby level — 20dB
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+4
+2
-0 1 | TH H
2 : [
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20: [Sof 1100 19Φ0 |: 1500 UHR 2K SK |1O0K 2OK(Hz)
ην
LINE IN
LINE OUT
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