Harman Kardon CD491 - Tape Recording Operations; Recording Through Microphones; Recording Level Adjustment

Apply 400Hz signal to LINE INPUT.
coed
tl
vivm
REC/PB
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
|
TP501
VF
ene
Blank
tape
(AC-512)
voltage
is
S80mV
in
REC-PAUSE
mode.
Then
TP502
VF
adjust
with
a
20Hz
to
30kHz sweep
signal.
vivm
Apply
400Hz signal
to
LINE
INPUT.
Record
level
Blank
tapes
REC/PB
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
|
TP501
confirmation
metal
AC-711
voltage
is
S80mV
in
REC-PAUSE
mode.
Then
TP502
LN
xLA
adjust
with
a
20Hz
to
30kHz sweep
signal,
Apply
250Hz signal
to
LINE
INPUT.
bata
VTVM
REC/PB
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
|
TP5O1
u
jeyback:
trap.
Blank
tape
(XL-1)
voltage
is
25dB
below
580mV
in
REC-PAUSE
TP502
u
mode.
een
pleybant
pele
Apply
400Hz signal
to
LINE
INPUT.
uciene,
ba
fal
AC
TIT
REC/PB
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
Heo
te
Con
eesie
voltage
is
25dB
below
580mV
in
REC-PAUSE
LINE
OUTPUT
Chatmcteristie
A
mode,
Then
adjust
with
a
20Hz
to
30kHz
sweep
confirmation
tn
xL4
Ganar
Apply
400Hz signal
to
LINE
INPUT.
REC-
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
VF
Meter:
level
ve
PAUSE
voltage
is
0.5dB
below
580mV
in
REC-PAUSE
VF
mode.
Record
calibration
REC-
TPS61
tone
level
NIYM
PAUSE
TP562
bk
7
REC-
TP561
VR
Bias
tone
viv
RAUSE
Aly
ve
LED
display
lighting
3
level
of
record
calibra-
ine
tion
tone
confirmation
LED
display
lighting
7
level
of
bias
tone
Broa
confirmation
MPX
filte
Bee
Apply
15kHz
and
19kHz
signal
to
LINE
INPUT.
characteristic
PAUSE
Set
REC
LEVEL
knob
so
that
TP561
and
TP562
|
LINE
OUTPUT
confirmation
voltage
is
580mV
in
REC-PAUSE
mode.
P
-
Apply
19.9kHz
signal
to
LINE
INPUT.
Set
REC
eoruaten
a
VTVM
A
uee
LEVEL
knob
so
that
TP561
and
TP562
voltage
oes
ever
contra
is
25dB
below
S80mV
in
REC-PAUSE
mode.
Apply
19.9kHz
signal
to
LINE
INPUT.
Set
REC
Boost
level
7P501
Conte
vtvm
PB
LEVEL
knob
so
that
TP501
and
TP502
voltage
TPS02
is 25dB below 580mv.