Sony APR-5001 Series Operation And Maintenance Manual page 149

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RECORD
FEEDBACK
RECORD FEED
FORWARD
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Figure 4 - 10 . Secondary Functions of the Alignment Control Panel
second function is in effect
.
See Figure 4 - 10 for loca -
tion of the second function buttons on the Alignment
Control Panel
.
for standard settings
.
In addition
,
these pro
-
vide for
a
degree of low frequency
response
extension for heads of moderate width pro -
file
,
when playing back long wave length
signals
.
In other words
, 30
ips playback
of
very low frequency material
.
For the specific purpose and use of the
secondary
functions refer to SECTION 6
, MAINTENANCE AND
CALIBRATION PROCEDURES
.
Adjusting
gap
compensation setting would
be required if heads of significantly different
gap - width are used
.
Should extensive relap -
ping of
tape heads cause a
change
in high
frequency performance
, gap
compensation
may be adjusted to compensate .
RGC ( REPRO GAP COMPENSATION
)
This is the second function of the REPRO LEVEL con
-
trol
button
. When the RGC is selected
,
the high fre -
quency
compensation
can
be adjusted
.
It
controls the
REPRO GAP compensation ( RGC ) which is used to
counteract the high frequency loss due to the head
gap
.
This is
a
useful alignment because headstacks of
differing construction and
gap
width
can be
adjusted
for optimum performance with a variety of different
tape types . It
is also useful when changing from one
speed to another
.
RCB ( RECORD FEED BACK )
This is the second function of the RECORD HI - FREQ
control button
.
This sets the record feed back
compensation
.
RCF ( RECORD
FEED
FORWARD )
This is the second funtion of the RECORD LEVEL con -
trol button
.
This sets the record feed forward
compensation
.
SGC ( SYNC GAP COMPENSATION )
This is the second function of the SYNC LEVEL con -
trol button
.
When the
SGC
is selected
, the
high fre -
quency compensation ,
which is used to counteract
the
high frequency loss due to the sync ( or cue ) head gap ,
can be adjusted
.
NOTE
;
The
RECORD FEED FORWARD ( RCF ) and
RECORD FEED BACK (
RCB
) controls aid in
adjusting the Frequency response for
recor
-
ding so that the frequency response during
playback will be flat
over a wide range of
diverse tape formulation
.
NOTE
:
Gap Compensation for Repro ( RGC ) and Sync
(
SGC
) provide
a means to
compensate for
alternate
gap
- width heads
.
Refer to Thble 4 - 3
4
-
11