Denon AVR-3803S Service Manual

. Checking and Adjusting the Tape Speed
(1) Connect the frequency counter to the LINE OUT terminal
and load test tape (SONY TY-224).
(2) Playback (both FWD side and REV side) a test tape. At
about halfway through the tape, where the tape transport is
stable, adjust RT-501 so that the frequency counter will
have a reading within the range of 3,000Hz + 15Hz.
SONY TY-224
4. Adjusting the Playback Section
(1) Adjusting the playback level
Playback the Dolby standard level test tape (A-BEX
TCC-130) and adjust RT-101 (L ch), RT-201 (R ch) so that
the LINE OUT voltage becomes — 2 dB (620 mV).
PB Amp
| BS LINE OUT ®
A-BEX TCC-130
LINE OUT
F Counter
3000 Hz
#152
(2) Adjusting the playback frequency response
Playback the test tape (A-BEX TCC-262B/162B) and
check to make sure that the frequency response meets the
specifications in the diagram.
Note: Before checking the playback frequency response, first
adjust the azimuth using the 8 kHz signal at the beginning
of the test tape (A-BEX TCC-262B). Also, after checking
the playback frequency, make sure to readjust the azi-
muth with the test tape (A-BEX TCC-153) and then lock
the adjustment screw.
PB Amp
LINE OUT
A-BEX TCC-262B/162B
Playback Frequency Response
20 50 100 200 500
1k 2k 5k 10k 14k = 20k (Hz)
Tape: A-BEX TCC-262B/162B
5. Adjusting the Recording Section
(1) Adjusting the record/playback overall frequency response
(CrO,)
1) Load the test tape HD7E/60, record a signal with an
input level of —40 dB, 1 kHz at the LINE IN terminal:
playback this recording.
2) Change the frequency of the input signal to 10 kHz,
record and playback; adjust RT-308 (L ch), RT-309 (R
ch) so that the characteristic standards meet the fol-
lowing diagram when compared to the 1 kHz signal
output level. PB Amp
{The other TAPE POSITIONS will automatically be ad-
justed by finishing of the foregoing adjustments.)
Record/Playback Overall Frequency Response
20 50
100
200 500
1k
2k
5k
10k
14k
=
20K
(Hz)
Tape
:
HD-7E/60
Dolby
NR:
Off
Level
:
—20
dB
From
Dolby
Level
(2)
Adjusting
the
record/playback
levels
(CrO,)
(3)
Checking
the
Dolby
C
record/playback
overall
frequency
re-
1)
Load
a
HD7E/60
tape
and
after
having
recorded
a
sponse
signal
of
1
kHz
(—
20 dB),
play
it
back.
1)
Set
the
DOLBY
NR
switch
to
the
C”
position.
2)
Adjust
RT-102
({L
ch)
and
RT-202
(R
ch)
so
that the
2)
Using
the
test tapes
HD7E/60,
perform
record/play-
output
from
the
line
out
terminal
has
the
same
value
as
back
in
the
same
manner
as
5-(1).
the
output
when
monitoring
the
recording.
3)
Check
to
make
sure
that
the
record/playback
overail
frequency
response
meets
the
specifications
in
the
dia-
gram.
Dolby
C
Record/Playback
Overall
Frequency
Response
20
50
100
200
500
1k
2k
5k
10k
14k
20k
(Hz)
Tape
:
HD-7E/60
DolbyNR
:
Onc
Level
:
—
20
dB
From
Dolby
Level
21
DRS-810 7

Denon AVR-3803S Specifications

General

Brand	Denon
Model	AVR-3803S
Category	Tape Deck
Language	English