Yamaha K-1020 Service Manual page 11

Stereo cassette deck
Hide thumbs Also See for K-1020:
Table of Contents

Advertisement

A
E^1",'J#""'F*" ,'.t i'H[lT:l'I '.]" i
-
%":::1:i:::' loo,;:H""p Ratins i "".*1
li-5Lnso'"+Tnrrraillp;c.v.n,r.- rnrc
israseolust*
-Fjg: ---noiu.trotn",1
l a ti on l ev el
]T P6
]
L M axi m um ( V R 107 )
lt -t t O
oscit la t ion
'
S e t V R l 19 a nd 1 2O a ll
I
1 ou t p ut is
I
t he wa y t o t he t ef t .
I
t ; ; ; ;r .
O UT
, T A P E
(R E C at m i n i m um ), se t
l Fi10 2
(R )
i 13 mV
imize
bia s le ak .
I
I
I
B I A S A D JU ST t o ma xi-
I
l
,
1
m um a nd m e asure b ias
I
i
I
I
l e ak a t LI N E O UT w he n
I
i
I
---
- ]
- t-
- --
-l
4t" "
i1I
tt t" " ilt
- - l --
-
tl r i l i l n u 'n '
3 ,BrAS Leak MErAL ir-rruE n c.v ru. tIFg_ IHL;;tflttpe["d
-[:19119q -!3;,1.r';;
-lnJr,"-'"
*.rn,ni
l l
I
I
I
r ecord i ng a nd m on it o rin g I
I
AC-223
I N PUT
L I N E A. C. V . M .
ls r cNn r -
T
(1 kHz,
1 0 kHz,
- 2 0 d B l
si m ul t an eousl v {TA PE
m ode) by usi n g a me t al
t he st anda rd l eve l)
3 -r Re co rd t he si gn al an d
ad j ust so t hat t he same
l eve l as t he abo ve i lr
l eve l i s obt ai ned .
I r Re co rd and pl a yba ck a
l kH z ( -20d 8) sig na l
a nd r ead t he l ev el.
R ecord a nd pl a yba ck a
10kH z ( -20 dB ) sig na l
an d adj u st so t h at t he
sam e l evel a s t he ab o ve
:- !, lev el is obtai ne d
S e t M E TA L ( A C- 7 12 ) a n d
D er f o rm B I A S TE S T.
Fre qu en cy
r esp on se
sh ou ld sa t isf y
Fig . N .
I'l''ir'rili. i i "ii.ii r*
lgu e ncy is us e d fo r
a d iust me nt . Bia s
],,191":l"l
may indi-
Ea ch a d just me n t in
S t ep s4a n d6 sh o uld
b e comp lit e d. C o n-
I
s i m ul ta neo us l y {T APE
I
I
I
I
mode) by using a metal
I
I
li tape .li
r r l l l t an e' il
ia-n""*Ji"s-iara-firvF-e.cl.rv.
inic
l,r,s"wilrgl"aiio "s
-ft*iri
lr_jlto.sae
- ---rh;;r.
I
L ev et
il NpuT
OUT
TAPE
1 the m i dp oi n t.
lVR 1t2 (R ) i
lthis unir
( Th r ou gh) S I GNA L
__ _-NR-+
,zA p pl y al kH z si new avel
(equivat,
i
L
, ( lk Hz , iLtNE tnud io
oFF
I s i s nal fro m L IN E lN so I
i
vn). tt
t
i
1- 20d8) jlN
ifre que nc y I
I tha t LIN E OU T voltage I
L
used, stir
i
I
I
j os il ar or
i
I i s 36 mV ( -29 dBV).
I
lin revet r
*
" r - l
) 4
B ec or di ng
tA C- 7 1 2
IL IN E A . C. V. M .
REC
1, 'r , S e t V R 119 and 1 20 a s
lVR 1 1 l {L )
1 0 .5 d 8
Th e ref e re nc e tap eo f
]
L ev el
INP UT
OUT
T AP E
t he m i d poi nt .
l VR 1 12 ( R )
t his un it is AC -7 2 0
( T hr ous h)
9 ]9 .r yAL
- -
- ryl_ *
, zA pp l y-a l kH zsi ne -w ave I
(e q uiva le ntto TD K.
I
il i i
(e qu iva len t to TD K -
{
MA ). lf o th e r ta p e is
j
u sed , sl igh t d iffe re nc e j
i n le ve l resu lts .
I
I
1 ( T hr ough )
TS IGNA L T_ _ _ -L _ _ _ _ _ _ l NR-+
j ZA nO l val kH zsi n ew a ve
|
(eq u ival en tt,
i
L
,(lkHz,
iL | NE t n u d i o
o F F
I si sn al f r om LI N E lN so I
i
MA). lf o t h e
I
i
1 - 2 0 d 8 )
jlN
if re q u e n cy
I
I t hat LI N E O UT vo lt ag e i
u se d , st ig ht d
t
i
1 - 2 0 d 8 )
1 lN
l fr e q u e n cy
I
I t ha t LI N E O U T vo lt a ge I
i
use d , slig ht d i fferen c e
i
I
t
lo si tl a ro r
i
l . 't s36m v. (-2 9dB v) . .
I
] in re vel re su lts .
A
I
1.
I
i
i i
l''1:::t'.ii;:l1ti#"ll
i i
i
issfxt.,lfifi:i*n'^l
I
i
I
Is wi tc he d.
I
_ -- - T - - - r . f-_
j He cor o ln g
A .v- t tz
L I NE l A. U.v. M .
iHE U
l . l . Uo nl r rm t n e l K H z r e-
L VR 1 19 (L l I Fre qu en cy
I A SO R BiT sig na l is
j BIA S
TINPUT
OUT I
jT A P E
] cor d/ pl ayba ck l eve l
VR 1 20 ( R )
re spo nse
ll tH z a nd 1 0 k H z , us e
(METAL) ls-tGNAL I
I
i}1.
i.^ lsl"g 1):
I
tloulg saj- iql.kf , sisnar.and
a
I
I
I
i"iii"t' "a .'
I
I
i
i
l = : - - ] - - -
-i = - - -- -
i'
i
. -
-- +- -- -f : -
-f -
-
-- r
-----1
5
R ec or di ng
A C- 7 1 2
L l NE I A. C. V . M .
RE C
l i l . A ppl ya l kH zsin e w ave 1 VR 1 2 1 ( L) l+ 0. 5 d8
E a cha di ustme n tin
i
Le ve l ( dbx )
INfUT
OUT I
T A P E
I si gna l f rom L I N E lN so , V R 12 2
( R )
st ep 4 sh o ut d be
I
i]9.ryAl_ _- _t __ ___ __ ry .R *
] th atL I. N E oU Tv o l t as e
I
" o m pt e t e d .
I
{ 1k Hz , jt tw E la ra io
rd bx
I i s 3 6m V (- 29 d B V ) .
I
1
l
- 2 o d B ) I l N
l f . e q u e n cy
, z Re cord t he si gn al a n d
1
I
lo si ll a t o r
] adi u st so t h at t h ere i s
I
I
I
j
I
I
I
I n ot evet di f f ers nce w he n l
I
l
I
I
I
I
I so u nc e /rR p e i s
1
I
I
I
r j
I
I
I
li* it" t' J
I
I
]
r ^ r^ - '- - '':--;+rrruEincnnn
il^;:_
-l*"t-frtirH.[-
ty.ltgttlir.o*r"u
]l,p"rt!,rrr,,
--1
6
Recordins
LC^/ 12
lT n P e
cord / p l ayback le ve l
VR 1 20 ( R)
re spo nse
jt t H z a na 1 0k H z , u
iNR
*
I ( S t ep 4 ).
I
sh o uld sa t -
la l kHz si gn al an d a
ritH.,
-
1
|
lcjir
]:a,h-""5.i'uno
prayback
a j
;;;;";js.t
]iriti, '""" *r'"'
lo kHz,
I
1
I
j
1 O kH z( -2 0dB )
sig na l
I
f a d. iu st insr e c ordi ng /
i-20d8) i I
I
l:*""i1::l::,*"":*:"1
I
l*::l::li::':::-:v
sam e l eve l as t h e a b ove
I
] re sp on se a nd c on firm
: 1 r l evel i s ob t a ine d .
]
l th a t ea ch r atin g is
1
I
I
I
I
1
I
I
lcateanerror'
i _ _ f
_ _ ._ __ _
._ + _
+_
_l
)
_
j z jRecorarns lnc-sr-l-trvEfAcv.rvr. -fnrc--fr-,n-"o,oi"alt"yb;.k; ivnrrs (l-) lFreque"cv lAroneirtig"ar
"-
i
lPlf ,
,lT:llT, iour I
irner I III:^hr-g9?l:1911
rvRl16(") li:'el'.-^ illl:,:{_19,k1.;
y*
( C rO r )
S IGNAL
t
I
J a nd rea d t he l e vel. (A
lsho u ld sa t -
a lkH z siqn al an d a
-
( 1 kHz,
- L t NEI f fi io
--
I
' sl i ght d i f f er enc e re sult s
] i sfy f i g. t vl.
] t o kHz on i whe n
1 OkHz,
lN
I f . e o u e n cv
] as reco rd/ pl a yb ack le vel i
1
'ad ju st ing re co rd in g,
1 - 2 0 d 8 )
i
l^ " ; ri. ' ^ , '
i
I of t hi suni t i ssett o AC -
i
i
lola vb ackf re orre n cv
lN
I frequencv
] as record/playback level i
I
'ad,usting recording/
' os iti ator
] of th i s un i t i s set to AC -
:
lpl ayback f req uen cy
i
I
i
I 712 .1
i
I
lresponsean dco nfir m
i
]
i
lrZlapply a 10kHz signal i
I
ithat each rating is
i
I
1 fro m LINE l N so that
I
I
lsati sfi ed. tf othe r
LINE OUT voltage is
i
I
lf r."qr"n"y is used for
36mV (-29dBV: vol-
I
I
tadjustment. Bias indi-
tage 20dB lower than
I
I
lcator may indicate an
Re co rd i ng
IBr AS
l ( Nor m al )
RE C
TA P E
vR 1 17 (L )
vR1 1 8 (R )
BI AS T es t
( LO W )
BIA S Te st
( H ig h )
B IA S
T E S T
REC
B I AS
A DJ
Ce n t e r .
VR 109
A C- 1 1 2
TP3
A. C. V . M
:O t S.V

Advertisement

Table of Contents
loading

Table of Contents