Frоrrt Panеl
Controls
1. Po\\rЕR
S\YITсн
Thс
porvсr
switсh is usеd
to turrr
оn
arrd оfГ thе AC main
pоu'еr.
2.
PoWliR
INDIсATORS
Pоrvсг indiсating
LЕD
is
dтir'сrr
tlу po\Yст
s\уitсh, and thе
LЕD
illuminatеs rr'hсrr
thе
ampltftсr
is porvегсd
oN.
3.
LD\.ЕL
СoNTRoLs
Sсpaгatе lеvеl
сontгоls arс
pror,idеd
fог сhalrnеl onе and сhannеl
tц'tr
iпput,
сloсkwisе
rotati(}n tlf thе
соntгtrls
iпстсasе lсvсl.
ol'ТPl]T
LЕ\,DL
INDIСATORS
output lеr.еl indiсating
LЕDs
indiсatе
thе Output lе\'еl oГ this amplifiеrs. Thеsе
LЕDs
illunrinatе rvhеrr
thс outputs arс
.30dB
and
.l5dB
of
ratсd
pou'ег.
сLIP-LI}IITЕR INDIСATORS
Thе
СLIP-LID{IT сirсuit
pегIrlits
thе amplifiег
to
rеaсh
thе
pоint
oГ
сlipping rvithоut
prrmaturе
limiting, Гor firll
..гoсk.
and гoll'' hеadrсюm
сaРabilit!'. Thсsе indiсator il-
luminatсs \Yhеfl
distortion rеaсhеs
about
19<l
t,o
109o'
PRoТЕСТIoN
lNDlСAТoRs
Protесtioп indiсating
LЕDs
irrdtсatе thе
соndiсtion of thе
protrсtion
сirсuit.
_.]lrсгrnal
plotесti0n--.-Whеn
hеatsink and
pоwег
tra;rsfoтmсr tеmpсratuгс has
схсееdсd
100.,С, protесtion
сirсuit
is opеrаtеd.
'Frrll
slrсrrt pгo1ес1ion-.--_This
сiгсuit pеrmits
Гull output сuгrеnt
up to 35 amps
pеak
(120V
AС.up to
50 amps
pеak),
but if thе outрut is
shortсd'
thе сurrеnt
is сut baсk to
a
safе lеvеl
of about 25%.
.
f&mprсssoг.limtt ing
-Thеsс
amplifiег will bе rеaсhed mа-хimum long-tеrm polvсг
_
RF
1rr<rtесtiоn
by thе соmprеssoг.limiting.
(without
distoltion)
As notеd in
thе spесiflсatlons,
thе ampliflеr is
guaгantсеd
to dсliveг ratеd pоwег
up to l5KHz.
NIaximum
avallаblе pоwег is
gradually
limttсd
at fгсqurn.
сiеs
alrоvе 15K[Iz
ш'ithоut
affссting thе frequеnсy
геspоnsе
at noгmal signal lеvеls.
Тhis fсatuге is
intеndеd to
pгotесt
high fгеquеnЪy dгir.еrs fгom
aссidеntаl buгnout
duеio high
frеquеnсv
system osсillatoгs,
еtс.
ц.
5.
o.
-
DС
Гault
pтotесtion-I)С
dеtесtiоn
сlrсuitary ls
providеd
tо
protесt
thе loud-
spеakеr.
A DC fault
voltagс ls
*3V or
grеatег.
_
Turn
on/off muttng_.
-.--Turn
оn/оff
muting blосks
tгansiеnts fгоm
thе amplifirr
or
prесedlng
dеvtсеs fтom геaсhing
thе spеakегs. Thе
tuгn on
dеlay has been
еxtеndеd sоmеwhat,
and tuгn
off
mutlng.
_
Inruсh сurrеnt protссti6n-ln1цqh
сuггеnt is limitеd
by an NTC геsistoг
(NegativЪ
Tеmpегaturе
Coсfftсiеnt)
whiсh staгts
at a high rеsistanсе
and thеn diminishеs
aftсr
tuгn-on to
avoid
loss
of powет.
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