Technics RS-DC10

Rs.ocro
I
7, ANALOG PLAYBACK
FREOUENCY
RESPONSE ADJUSTMENT
(UAIN
P.C.B.)
Praper.llons
TGI Setup
T@ls
A Jigs
Maasurlng lnstruments
1
2
ACC
?..i
l.p.
(OZCFiii)
Scrowdrlver
(-)
1
2
Fr€quency Count€r
EVM
(AC
Range)
.
Adjustmrnt
Sttps
(l)
Play
the tkHz End
(xlHz
lesi
lonos on th6 ACC Tasl rrp!
(OZZCFM)
8nd adjust
potenliomolGrs
ROls
(Lch)
and R6a0
(Bch)
unlll ihs
FIXED ouT outpui lev.l at fil Hz ls within 0 r0/
-
1 dB lrom
thst
et I
kHz.
(2)
Play th€ lkHz and 12.5kHz lesl tones on the ACC T.st llp.
(OZCFll)
and adlust
polontlomst€rs
Ra43
(Lch)
and R64,1
(Bch)
untll ihe FIXED OUT oulput
l6v6l
at
12.5kHz
ls wlthln 0r0/-1dB
from
at 1
kHz
Nol[:
.
Ourlng adiustm€nt, monitor
playback
frequency with a Frequ€ncy Counter
.
Mlsallgnmont wlll
atfoct thc ACC
Test
tape
(OZZCFM) playback
frequency rosponse
8. TAPE SPEED ADJUSTMENT
(TRAY
P.C.B.)
arations
Tesl
Setup
T@lo & Jlgs Measuring
I
1. ACC T.3t tap.
(Ozz'CWAfI.
3kHz
-
1odB
2,Screwdriver(-)
1
Froquency
Countet
.
Adlustment Stops
(l)
Plsy foMard
the 3O00Hz tosi tone on
the
ACC T..l lrp.
(OZehrATland
adjusl th6 sional lroquency
at
lhe FIXED
OUT
lack
lo 3000Hza
l0Hz with
potentlomster
RSO2
(See
Fio 29)
(2)
Pley backward the 3000H2 test looe on th6 ACC
T.rt t.pc
(OZZCWAT)
and adiust ihe signal
froquency at
the FIXED
OUT
Jaok
to 3000Hztl0Hz with
pot€nllometor
RSIIA
(See
Fig 29).
9.
OUICK
REVERSE SENSOR ADJUSTfI,ENT
GRAY
P.C.B.)
.fho
purpose
of thls
adlustment is to set EOT s€nsor's sensltlvity
to the magnetic and leador
portlons
ot
caslett€ tapas
(qulck
r€verse senso.)
.
Adlushent
Stepg
(1)
Play th€ leader
tape
portlon
ol
an ACC Blrnk
l!p.
(MAXELL
UD-IgO) 8nd adjust lhe
polentlal
dilterence
bolw€en JW32 and R03l to 1 V with
potentlomeier
R036.
Proparalions
Tesl Selup
T@ls
& Jlgs M€asualnO
lnslrumenls
1
ICC
Bl.nl trp.
(fAxELL
UD.r00l
(commcrclally
.vall.ble)
Scrowdrav€r
(-)
l. EVM
(OC
F.nO.)
Fig.27
l-
|
(S@
Fig.25)
/;;P
-i@i@
I
\ mv
p
c.e. lP
\ *'f,1'
-
16-