Yamaha Electone EL-900, Owner'S Manual

Page: 181 / 188

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T r oubl eshoot i ng
P l ease not e t hat t he appear ance of any of f ol l ow i ng phenom ena does not i ndi cat e a m echani cal f ai l ur e
of t he E l ect one.
P r o b l em
G E N E R A L O P E R A T I O N
S om e of t he L E D s i n t he D I S P L A Y S E L E C T s ect i on
do not l i ght .
A cr acki ng noi se i s som et i m es hear d.
I n t er f er en ce f r o m r ad i o , T V , o r o t h er so u r ces
occur s.
T h e so u n d o f t h e E l ect o n e cau ses su r r o u n d i n g
obj ect s t o r esonat e.
T he E l ect one panel does not f unct i on nor m al l y or
t he cont ent of t he m em or i zed dat a has changed.
T he sound i s t oo sm al l even w hen t he vol um e i s
set t o i t s m axi m um .
P r essi ng a cer t ai n panel but t on doesnﾕt open i t s
r el at ed L C D di spl ay.
V O I C E S / R H Y T H M S
W hen sel ect i ng a dot t ed but t on voi ce or r hyt hm ,
t he voi ce or r hyt hm t i t l e at t he t op of t he L C D
does not m at ch t he voi ces or r hyt hm s.
W hen t oo m any keys ar e pr essed, not al l of t he
not es sound.
W h en p l ay i n g a P ed al v o i ce fro m t h e L o w er
keyboar d ( usi ng t he T o L ow er f unct i on) , pr essi ng
t he L ow er keyboar dﾕs S ust ai n but t on does not t ur n
on S ust ai n.
T he sound i s t oo sof t , despi t e t he vol um e bei ng
set t o t he m axi m um .
S w i t chi ng voi ces causes t he vol um e t o change,
despi t e t hei r havi ng i dent i cal vol um e set t i ngs.
W hen keys on t he L ow er keyboar d or P edal boar d
ar e pr essed, t he sounds of per cussi on i nst r um ent s
ar e al so hear d.
P ossi bl e C ause and S ol ut i on
T he L E D s of on/ of f but t ons ( U P P E R / L O W E R F L U T E V O I C E S , V O I C E E D I T ,
R H Y T H M P R O G R A M , and T R E M O L O [ F A S T ] ) ar e l i t w hen t hose f unct i ons
ar e t ur ned on. T he L E D s of ot her f unct i onﾕs but t ons m om ent ar i l y f l ash w hen
t he f unct i ons ar e sel ect ed.
N oi se m ay be pr oduced w hen ei t her an el ect r i cal appl i ance i s t ur ned on or of f ,
or an el ect r i c pow er t ool ( such as dr i l l ) i s used i n t he pr oxi m i t y of t he E l ect one.
I f t hi s occur s, pl ug t he E l ect one i nt o an el ect r i cal out l et l ocat ed as f ar as possi bl e
f r om t he devi ce t hat seem s t o be t he sour ce of t he pr obl em .
T hi s i s caused by t he pr oxi m i t y of a hi gh- pow er br oadcast i ng st at i on an am at eur
ham r adi o set up or a m obi l e phone.
B ecause t he E l ect one i s capabl e of pr oduci ng pow er f ul bass sounds, r esonance
m ay be caused i n sur r oundi ng obj ect s, such as cabi net s or gl ass w i ndow s. T o
avoi d t hi s, r el ocat e t he obj ect s or l ow er t he E l ect oneﾕs vol um e.
T hi s happens ver y r ar el y. O ccasi onal l y, pow er sur ges and spi kes due t o
el ect r i cal st or m s or ot her r easons m ay cause t he E l ect one t o m al f unct i on and/
or al t er t he cont ent s of m em or i zed dat a. I f t hi s happens, per f or m t he P ow er
O n R eset oper at i on t o r eset t he E l ect one. ( page 85)
･ T he M ast er V ol um e m ay be set ar ound t he m i ni m um posi t i on. T ur n i t
cl ockw i se.
･ T he E xpr essi on P edal m ay not be pr essed dow n. P r ess i t dow n w i t h your
t oe.
T he H O L D but t on m ay be engaged. P r ess t he H O L D but t on t o cancel t he
H ol d f unct i on and pr ess t he but t on agai n.
T he cur r ent l y assi gned voi ce or r hyt hm i s di spl ayed at t he t op of t he L C D , and
r em ai ns unt i l anot her voi ce or r hyt hm has been sel ect ed.
T o t al p o l y p h o n i c cap aci t y ( n o t es so u n d i n g f o r b o t h U p p er an d L o w er
K eyboar ds) i s 14 not es. P ol yphoni c capaci t y i s 12 f or bot h t he U pper and
L ow er F l ut e V oi ces, and 6 each f or t he U pper and L ow er A t t ack sound.
E ven t hough t he P edal voi ce i s bei ng pl ayed f r om t he L ow er keyboar d, i t i s
st i l l a P edal voi ce; t ur n t he S ust ai n on w i t h t he P edal S ust ai n but t on.
C heck al l of t he vol um e cont r ol s, m aki ng sur e t hat t hey ar e set t o sui t abl e
l evel s: t he panel V ol um e cont r ol s f or each voi ce sect i on, t he M ast er V ol um e
di al , and t he E xpr essi on P edal .
A l so check t he U pper / L ow er B al ance cont r ol on t he V oi ce D i spl ay. ( page 28)
T he vol um e of cer t ai n voi ces m ay seem l ow er t han t hat of ot her s. A dj ust t he
bal ance of t he sound w i t h t he V ol um e cont r ol w i t hi n t he appr opr i at e V oi ce
C ondi t i on di spl ay.
T he keyboar d P er cussi on f unct i on has been t ur ned on. W hen not usi ng t he
f unct i on, be sur e t o t ur n i t of f . ( page 71)
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