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2-l
RTCORD
I
NG
PIRFORMANCI
$?€fi
Test
mode
R-EeTpllv-
Deck
sett
i
ngs
REc--IUileTI0[lw
:
DBX
sw
:
RtF t.tVtL
sw
r
OUIPUI
Sw
;
OUTPUI
cont.
:
LII{F
cont,
:
HIC
cont.
BIAS
FINI
cont,
:
C|-|
1, 2
both
0N
OUT
250nl,l
REPRO
Spec,
PB
condition
Spec.
input
condition
Il IN
Centef
Test
taoe
nttPEXJS6-:
Blank
tape
I
ITH
iHg'qE
SITT II{G
tl
,tl
II{PUI
SIOI{At
^htrn
ADJUST
ffitr'Ff
RTSUTI
iffilH
REMRKS
ffit
B.
Bias
tlap
)\477 F1y7
B-1
AC
volt
meter
between
TP.05/TP.'15
and
GliD
No
signal
#lzE
1306/t406
TP.05/TP.
l5
Hin.
reading
,'{,f
7xifil'ujFzjr
B
ias
f
requency
)\477
Eiffi
150
kHz
B-2
AC
volt
meter
between
TP.
01/TP.
1
1
and
GND
No signal
ff=g
*tE
?
1301/140'l
1P.01/TP.
11
Hin.
reading
,'{4
7:,if;*rjFzJi
Record
b
i
as
g*E)\4
7
^
9-1
First
set adjuster ful
ly
CCl,l
(
O ),
then
adjust,
&l/Ji3+EE[tntE
-{tr{,rF]
L(r'
63ffi
tf6D6
.
SPttD sw
:
L0l,l
LIt{I
It{
:
1
0kHz/-20dBV
(
1
00mV)
R572/R972
OUTPUT
:
Over-bias
value
t-i l-
.)\477rG:
7dB
+0.5d8
10.
Record
lcvel
$*€L'&1.
'10-
1
SPEE0
stl
:
HIGIi
IINI
IN:
1
kHzl-
1
0dBV
(316mV)
R559/R959
0UTPUT:
-10dBV
(316uV)
1
0-2
Check
tt't
2
VU
metef
:
0
VU
+
0.5
VU
1
0-3
Same
as
above F"lI
DBX
sw
:
IN
Check
4-.
.',
t
0UTPUT
:
-10
dBV
+1.5d8
(266ltt/
-376tnv)
Same
as
above
tiilt
rn-,,!
OBX
sw:OUT
0UTPUI
sw
:
I
Rt
PR0/
INPU)
No
signal
F,f=kj
Check
tt'v?
OUTPUT
:
Bias leak
:
t\477Wt:
less
than
-50dBV
(3.16mV)
After
adiusting
overal
I
frequency
response
(ite|r|
12 and
13),
re-do
this
item's
checks and adjustment.
^ffiB
.
;Jffill$*l4tdr4ffiffi+tiJ:I#(12
13
E)
?{,
HF.rla.L.
1
1,
Record head
az
i
|Iluth
S*H'.:
v
l:
.7r?].
11-1
SPttD
sry
OBX
sw
L0t4
0tJl
LINI
IN
:
1
kHzl-20dBV
(100|llv)
Record
head
azimuth
scfeys
$*F'r'v
F
7y?7w i
Phase
:
0'
{ilffi
:
0"
Refer to
F
is.2-21
-
2-25
lf
you
adjust
azimuth smerys, check pafagraph
10-1-3
again.
7'
?
^iw|^
J
tfih't-/:BhH,
1
0-',1
-3
trtE*
r
.y
2
t
b
J.
t
12.
Frequency fesponse
J*ltwi+t+
(SPtt0:
lllGH)
I
L'
I
SPIE0
sw
:
lllGtl
DBX
sw
:
OUT
IIt{I
It{
:
400H2
&
2zkltz
/-20dBV(
1
00mV)
R567/R967
OUTPIJT
:
tqual
level
at
both
frequency
Wlili}s.othnsL(*16
j j
iffi
I
tt-L
l
i
tINI
IN
:
-10dBV(316[|V)
Check
tz'v?
Frequency
response
:
Fig.3-7
Eliffiffitf
:
E
3-7
12-3
Same
as
above
Et
DBX
sw
:
Il{
Same
as
above
lql_t
Check
*r.'v
?
Sane
as
above
Itrlr
17
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