Akai X-355 User manual

TABLE' OF CONTENTS
[I]
I GENERAL INFORMATIONS
I. SPECIFI CATION S ········· ........... .... ..... . ....... . @
2. NOMENCLATURE ....... .................. . .......... ... @
3. CROSS.FIELD HEAD ···········.. ······· ···· ···.. · ······ @
4. 4 .TRA CK RECORDING/PLAYBACK ········· ··· @
5. TROUBLE SHOOTING •··········.. ···················· @
6. V OLTA GE AND CYCLE CONVERSION ······ CT)
.U. OPERATING INSTRUCTIONS
I. TAPE LOADING ·· ········ ················· · ···· ······.... ®
2. PLAYBACK ······ ·· ···· .. ··· · ·· ·· ·········· ······ ········· ®
3. PLAYBACK USI!'\G EXTERNAL
SPEAKERS OR AMPLIFIER· ····· @)
4. AUTOMATIC STOP (DECK O:s/LY )· ········ .. ·· ··@)
5. AUTOMATIC SHUT.OFF
(DE CK ANO AMPLIFIERS)---··· @
6. AUTOMATIC REVERSE ( METER ; ····· ·········· @
7. AUTOMATIC REPEAT (MET ER )···· ·········· · ···@
8. AU TOMATIC RE V ER SE OR REWIND
( METALLIC SENSING TAP E)····.. @
9. AU TOMATIC SHUT . OFF WITH
REVERSE AND REPEAT- ····· @
10 . MANUAL RE:YERSE OR REPEAT ······· ·····--· @
11. RE C ORDING .... ............ .......... ..... ........ ......... @
1 2. RECORD ING FROM DISCS ........ ........... ..... @
1 3. RECORDING FROM AN EXTERNAL
AMPLIFIER ······ @
14 . RECORDING FROM AN OTHER
TAPE RE CORD ER······ @
15 . MONJTORII\G ········· ············ .......... . ......... ··· @
MODEL
X-355
OPERATOR'S
MANUAL
CROSS FIELD HEAD
SO LID S TAT E AMPLIFIER
4-TRACK STEREOPHONIC
SOUND RECORDER '
AND REPRODUCER
1 6. REV ERBERATION ······· · .................. ............. @
17. SO UND ON SOUND ······ ······ ········· ··· ........ .... @
18. SO UND WITH sou c-m ........... ...... ........ . .. ····· @
19. FA ST. FORWARD AND RE WIND ....... ........... @
20. TAPE SPEED CHANGE·· ··········--·········· · ···· ···· ([
2 1. HEAD CLEANING ··· ···· ····· · ··········· ..····..··· ···· @
22 . HEAD DEMAGNETIZATION ···· ·· ........ .. ... ..... .
23 . TRANSISTOR PRO T E CT ION•• ···· ..···..··········· @
24. VE NTILATION ···· ········· ....... ......... ............ .... @
I ACCESSORIES
I. ACC ES SORIES OPTIONAL ····--···········....·..··· @
2. ACCESSORIES SPEAKERS ·· .... ····.. .... .·········· @
3. ACCES SORI ES STANDARD ······· ..·....···· ····· · @
1V LUBRICATION CHART .... .............................. .. @
V CONNECTING DIAGRAM......... .. ... .... ... .. ... ... . ... @
VI SCHEMATIC
I. MECHANISM UNIT ··..················..,·,··········· @
2. AMPLIFIER U NIT ... ..... .··········......·····....···· @

Tape Speed
Frequency Response
Signal to Noise Ratio
Wow and Flutter
Playback only )
Equalization
Cross Talk
Distortion ( Tot al Harmonics )
Head ············ Cross -Field
Motor Used
Timing Accuracy
Recording Sensitivity
Power Output
Transistor Used
Fast-Forward and Rewind
Time
Internal Speakers
Power Requirements
Weight ( Net )
Dimensions
1. SPECIFICATIONS
3.3 /4, 7.1/ 2 and 15 ips.
30 to 24,000 cps ± 3 db at 7 -1 / 2 ips.
30 to 18.000 cps ±3 db at 3.3 / 4 ips.
Be tt er th an 47 db at norm al play.
Less than 0. 08 % RM S at 7-1 / 2 ips.
at norm al, reverse play.
I GENERAL INFORMATIONS
Be tt er th an 45 db at reverse pl ay .
Less th an 0. 14 % RMS at 3.3/ 4 ips:
Correct e qu aliza tion for playback of tapes recorded to th e NA B cu rv e.
Less th an - 82 db ( Mon au ral) Less than -45 db ( St e reo )
Within 4 .0 % at 1,000 cps OVU at IO watts.
*R ecordi ng H ead : Inl ine 4 Tr ac k Stereo and Mona ura l,
lo w im peda n ce 135 ohms at 1, 000 cps.
* Pl aybac k H ea d : lnl ine 4 tra ck stereo and mona ur al,
low im pedance 1,000 ohms at 1,000 cps,
install ed on an a ut oma tic s hift device.
* Erase and Bi as H ead : l nline 4 tra ck ster eo, l ow imp eda nce 750 ohms at 90 kc .
Hysteresis s ynchronou s 2 speed ( 4.8 po le) mo t or for c apstan drive .
T wo 4.p ole indu ction motor s for fast.forward and rewind .
±0.3% at a ll tape speeds.
I nput of more th an 0.5 mV in MICROPHONE jack.
I nput of m ore than 50 mV in LI NE IN PUT j ack .
25 watts a t M usic P ower on eac h ch an nel, total 50 watts.
20 w atts at Undistorted P ower Out put on eac h cha nn el, tota l 40 watts.
2SB 443 {A)x 4} Pr e. amp l ifi er
2SB 75 (B )x 12
2SB 75 {A )x 2 }
2SB370A( A) x 2 Main amplifier
2SB338 {A) x 4
Rectifier SP .01 x 2
Rectifier l 2C .2 x I
Silic on e Di ode x 3
2SB370A (B)x 2 Os c illator
45 seco nd s for ei th er operation using a 1,200 f ee t r ecord in g t ape at 50 cycles,
36 seco nd s at 60 cycles.
6-I/ 2" round , wide range speake rs, one on each cha nn e l.
AC 100 to 240 volts, 50 .60 cps, 60 VA (at n on signal) to 170 VA (a t maximum output :
28.5 kg (62.7 pou n ds )
440H x 40 7W x 3 10Dmm O vera ll , case closed. ( 17 .3 / 8"H x 16"W x 1 2-1 / 8
11
D)
GENERAL INFORMATIONS
2. NOMENCLATURE
rn
(j) Su pply Reel Sh aft
@ Gu a rd Cir cle
@ Speed Chan ge Switch
© Tra ck Select or Kn ob
® T ape Gu ide
® Tape Guide Ro ll er
(1) Upper H ead Cover
® Low er H ead Cover
® Remote Control Socket
@) Pow er Button
@ Stop Button
@ Rewind Button
@ Play B utton
@ Fa st-Forward Button
@ Record Safe ty Lock
@ Record Sa fety Button
@ Microphone J ac k (Left)
@ Microphone J ac k ( Ri ght)
@ VU Meter
@ Lin e Vo lume Control (Left)
@ Microphone Volum e
Con trol (Left)
@ Re cord ing Indica tor Lig ht
@ Line Vo lume Contro l (Right)
@ Mi cro phone Vo l um e
Con trol (Rig ht )
@ Record Output Butt on
@ Stereo H eadphone J ac k
@ Pl ay ba ck Output Button
@ Vo lume Co ntr ol (L eft )
®) Volume Cont rol ( Ri ght)
@) Fun ction Switch
@ Equ alizer Switch
@ Tone Switch
@ Sp ea k er Switch
@ R epea t B utton
@ Reverse Button
@ Shut.Off B uuon
@ Pinch Wheel
@ Capstan Shaft
@) Reverse Pin ( I )
@ Reverse Pin ( l )
@ Ten sion Arm
@) Index Counte r
@ Reset Button
@ Tape Holder
@ Take-up Reel Sh aft
@ Dial Off Button
@ Tape Count Met er
@ Set Dial
@) Manual Reverse Button
@ Sp ea ker Reflectors
® Line I nput J ac k (Left)
@ Line Inp ut J ack ( Ri ght)
@ Line Out put J ac k (Left)
I§ Line Out pu t J ack (Right)
@) External Speaker J ack (Left)
@) Ext e rna l Speaker J ack (Rig ht )

3. CROSS-FIELD HEAD GENERAL INFORMATIONS
Cross-field h ea d creates a se nsation in th e ta pe recorder world by mak ing a wide ra nge of recording which h as never been h eard before
any tape recor der.
Usi_ng this cross-field h ead, M ode l X-355 prov ides a s urpri si ng reco rd ing perfor man ce (3 0-24,000 cps at a t ape speed of 7 -1 / 2 ip s and
~0 -1 8,000 cps at 3-3/ 4 ip s) .
.Vhat is superior abo ut cross-field r eco rdin g? Ho w does it diff er from typi ca l recording method s as far as co nst ruct i on is co ncern ed?
On the se, expl ana ti on is given below in se quen ces :
In the typical r ecor din g syst em, th e signal c urr en t a nd the bia s c urrent are c ombin ed together and app li ed to the r ecor din g head .
(R efe r to Diagram I. )
It is we ll known that th e purpose of bias cu rre nt is recording at hi gh sensitivity with a signal app lied on th e tape, with no distortion
a nd minimizing noise generat ion.
Ho wever, th e bi as c urr e nt p rov iding such an adva nt age also h as an und esir ab le ch arac t or . That is, th e wi de m ag netic field of th e bias
current affects th e r ecorded si gna l, resulting in weakening or eve n e ra si ng th e signal. Thi s phenomenon is pa rticularly n ot i ceab le at
high fr e qu encies.
In th e cross-field system, th e sig nal current is applied to the r ecord ing h ead while th e bias c urr e nt is app li ed to th e bias head.
Th ese two h eads are lo ca ted in diff ere nt positions, as determind int er -rel at ively, so th at th e magnet ic field of the bias will no t affect
th e signal recorded on th e tape, even wh en a su ffi ci en t bias is ap plie d. Th is allows th e recorded signal to remain on th e t ape wi th
hi gh fidelity.
Diagram I. Ordinary r eco rdin g syst em
Signal
_©J_; :b!as
D ir e ctio n in
W hi ch t ape is
tra n spo rted .
Di agram 2. Cross-field recording system
_@:::-
(?'I) Crossfield
~ Bias
head
GENERAL INFORMATIONS
4. 4-TRACK RECORDING/PLAYBACK
2
· 3
4
[ID
T he AKAi x 355 emp loys a fo ur tra ck syst em th at ca n be used for e ith er st ereo or monaur al reco rding and pl ayb ac k.
-
Fig. 2
@ I
I
I
,,,
F irst track
The des ir ed t ra ck or track s are sel ec ted by the
TRACK SELECTOR K NOB . @
J
@ Seco nd track
Tape wi dt h
' \ Th
ird tra ck
\
Fourth t rack
.... _
4-T rack Stereo Recording/Playback
Stereophonic recording / pl ay b ac k req uires th e s imul -
tan eo us use of tw o tr ac ks. Se t th e TRACK SELECTOR
KNO B © to "STEREO" . Th e fi rst stereop h onic reco rd-
ing /pl ay b ac k takes pl ace on tr ac ks I a nd 3, an d th e
seco nd on tracks 2 and 4 af ter th e reels have been
turn ed over.
4-Track Monaural Recording/Playback
I
2
3
4
Th e monau ra l r eco rdin g/ pl aybac k tr ac k se quen ce should be 1-4-3-2.
(A}. Set th e TRACK SE LE CTO R KNOB @ to " 1-4".
~
4
3
2
~~
_:-----=t.f.:::.: =::
-- --- - -- -- ·
~
The first mon a ur al recording / pla yb ack takes pl ace on t rac k I, a nd th e sec ond on track 4 aft er th e tape reels have be en turn ed ov er.
(BJ. T urn th e t ape ree ls over.
(C). Set th e TRACK SELECTOR K NO B @ to "3-2".
T he th ird mon a ur al re cording / pl ayback tak es place on tra ck 3, a nd the fo urth on t ra ck 2 after th e t ape reels have been turn ed over.
T he X-355 do, s not reccrd in th e reve,se dire c ti on. Us ing reverse pl aybac k, it is r.ot r.e, essary to turn the ta i:,e re els ove r.
X-355 begins reverse pl aybac k, th e pl ay b ac k h ead is a utom ati ca ll y shifted to th e re maining tra cks.
Wh en th e
©
CD - - - - - ---- ©
~ 4 ~
3
2
, ~JU2
2
4~
3 - -- -- - --- -~ =- - -- -
3 -...........:::==== ·
4~

5, TROUBLE SHOOTING
GENERAL INFORMATIONS
IMPORTA N T: READ THE OPERATIN G INSTR UC TIONS CAREFULLY BEFORE OP E RATING YO UR RECORDER .
Th e symptoms li sted below do not necessarily indi ca te a malfunc ti on of yo ur tape recor de r. If your mac hine e xhib its any of th ese symp toms,
ta ke the indicated action.
A. Loss of se nsitivit y or ton e qu ality m ay be due to:
Dusty or dirty h ea ds - clean th e h ea d s.
Reversed t ape -pl ace th e dull side of th e tape toward th e heads.
Impr ope r volt ag e - c he ck voltage input and a dju stment.
B. I rr egularity of the tape tra nsport m ay be du e to :
Grime a dh ering to the heads _ cl ean the h ea d s.
Oil on th e c ap s tan -clean th e c ap stan.
Dirty tape s urfa ce _use a cl ea n tap e.
Be nt take up reel - s tr aighten th e take up ree l.
C. If yo ur m ac hine will not r ec ord, ins ur e th at th e following are in th e co rr ect position :
RECORD SAFETY BUTTO N @
Mic roph one plugs
D. If yo ur m ac hine will not r ep r od uce, insu re th at th e following a re in th e co rr ect posi ti on :
PLAYBACK OUTPUT BU TTO N @
S PEAKER SW I TCH @)
Lubri cate the X-355 a ft er every 1,000 hour s of use.
If an y problem ar ises, take your m ac hine to th e authorized AKA i ag ent in y our ar ea or to th e Service Depa rtm e nt of th e AKA i Co mpany
in Tokyo, Jap an.
00
GENERAL INFORMATIONS
6. VOLTAGE AND CYCLE CONV ERSION
II]
1. Voltage
Th e VOLT AG E S EL EC TOR switches are l oca ted on th e bac k of th e recorder rig ht above the fuse holder. To select an operatin
9volta9e1
remove th e volt ag e se l ector cover plate and set the prop er volt age on th e two switches so that th e desired voltage shows through the cov er
plate wind ow Th e ro tary switch mu st be pull ed out, rotated, and reset at th e desir ed position.
IF T HE R EC ORDER JS OPERATED O N THE I NC ORRE CT V OL TAG E, S ERIO US DAM AGE MAY RE SULT.
CAUTION: Change fu se according to YO ltage.
FUSE: 100\/ 10 120V 3 A
200 \ . to 240 V I. 5 :\
Fig. 3 Fig. 4
2. Cy cle
Th e X-355 ca n be op erat ed on either 50 or 60 cycle alte rn a tin g c urr ent. Th e r ear cov er pa nel (Fig ur e 5) of th e recor de r mu st be remo v ed to
make a cycle co nversion. For 50 cycle op era tion1 loosen th e knurl ed screw on the belt guide and oosit iD n th e belt so it ri des on the
low er driving tr acks of th e flywheel an d motor bushi ng (Fig ur e 6). For 60 cycle operat ion, loosen th e knurl ed screw and positi on th e belt so
it rides on th e u pper dr iving tr ac ks of th e fl ywheel and mo tor bushi ng (F ig u re 7). Aft er the be lt is pr ope rly positioned for either operat i on,
tig ht en th e knurl ed scr ew and re set th e tw o slide switches l ocated n ear the fl ywheel and th e vol tag e se l ector cover pa nel.

VOLTAGE AND CYCLE CONVERSION
Fig. 5
GE NERAL INFORMATIONS
• •
50 Cycle
60 Cycle
Fi g. 6
®
C
OPERATING INSTRUCTIONS
[ID
Pl ace the reel with t ape on th e SU PPLY REEL SHAFT (j) and an
emp ty reel on the TAKE -UP REEL SHAFT @). Pull down on the
LOWER HEAD COVER @ and thread the t ape as shown by the
dott ed line in Figure 8. After th e tape ha s been thr eaded, pu sh the
LOWER HEAD COVER@ ba ck up into positio n. Wh en th e rec ord er
is used in th e verti ca l position, th e Rubb er Reel Holders must be u se d.
B es l r eco rding results are obtained \Vith n ew lap c.
Stereo
Connect th e power cord and load a tape.
(A) Push th e POWER BUTTON @) .
(B) Set th e TRACK ELECTOR KNOB @ to " STEREO".
( C) Set th e SPEED CHA:--IGE SWI TCH @ to 7½ or 3-3 ·4 as re-
qu ested.
(0 ) Set th e F UNCT I0:--1 SW I TC H @ to ' ·STEREO ' ·.
( E) Set the EQUALIZER SWITCH ® to 7~
2
or 3-3/ 4.
Th e EQUALIZER SW I TCH ® and th e SPEED CH ANGE
SW I TCH @ must have th e same setting.
IF) Push th e PLAYBACK O TP UT BUTT0:--1 @.
(G) Set the SPEAKER SWITCH @ to " 0:--1 ".
Open the SPEAKER REFLECTORS ~ to forty -fi ve degrees.
(H) Push th e PLAY B UT TON @.
(IJ Adju st th e VOL ME CO:--ITROL K:\'OB S @,@ to d es ired vol-
un 1e.
(J) et th e TO ! E WITCH @ to " FLAT ' or· ·'BAS S'' as d es ired.
Monaural
For monaural playback, s ub stitute th e following steps for s tep s (B) and
(0 ) of the stereo pro ce dure , and follow the rest of the ster eo pro ce dur e.
/BJ Set the TRACK SELECTOR K:-.IOB @ to " 1-4 " or "3 -2 " as re-
quir ed.
(0 ) Set the FUNCTION SW I TCH @ to " MO 0 ".
Onl y the le ft c hann el amplifier is used for monaura l playback.
Fig. 7
(ID
1. TAPE LOADING
2. PLAYBACK
F, g 8
Fig. 9

3. PLAYBACK USING EXTERNAL SPEAKERS OR AMPLIFIER OPERATING I
NS TR UCTIONS
Fi g. I I
®
Fi g. 12
Th ough your AKAi X. 355 has t wo internal speaker s, a pa ir of either
8.Q or 16.Q hi gh fid elity e xt e rn al speakers will enable you lO enjoy the
best so und r ep r od uction.
A. Inse rt th e plugs from the exte rn al speakers i nt0 th e LEFT and
RIGHT E XTERNAL S PEAKER J AC K S®, @.
Wh en th e speaker plugs are in the spea ker j ac ks, th e respective i n.
ternal sp ea kers are inop erative.
B. Set th e SPEAKER S WIT CH @) t0 " ON ".
For ster eo play ba ck, th e e xtern al s peak ers sh ou ld be se parat ed by
at least seven feet (Figure 10 )
If an exte rn al st ereo amplifier is used for pl ay ba ck, co nn ect th e LE FT
and RIGHT LIN E O TP UT JA CKS @), I§ t0 th e Le ft and Ri:-; h1
Aux T ac ks of th e Am plifier ( Fig ure 1 1).
4. AUTOMATIC STOP (DECK ONLY)
Th e TENSIO 1 ARM I is c onn ected lO a mic ro. switch th at a u10111 a 1.
i ca lly s t0p s the deck ii th e tape s hould br ea k, pile up , or pass e ntir ely
throu gh to th e take up ree l. U nd er n ormal opera tin g co nditions. th e
a rm will be held in the ap pr o xim ate position inclicatecl in Figure 12 @.
If the arm reaches th e positi on as shown in Fig ur e 12 (6), th e micro.switch
will function and st op th e d ec k.
OPERATING INSTRUCTIONS
S. AUTOMATIC SHUT-OFF (DECK AND AMPLIFIERS)
ID]
When th e S HUT.OFF BU TTON @) is push ed in (Fig ur e 12 @), th e deck @
and th e amplifiers are c onnec ted t0 the TE I ON A RM I micro.
switch. If th e tape sh ou ld br ea k, pile up . or pa ss e ntir ely thr oug h to
th e take up reel, th e TENS IO N ARM I will r eac h th e po sition
shown in F igure 12 (6) and th e deck an d amp lifiers will be turn ed off
a utom ati ca lly.
6. AUTOMATIC REVERSE (METER)
Autom atic reverse is used for pl ay b ac k only. When th e meter is used
for a utom atic reverse th e X- 355 will ive co ntinuou s la •b ac k in both
direc ti ons between any two points ) se ect e-c. on t 1e ta B,;,
(A) Push in on th e DI AL OFF B Ur rON s and r ota te it clockwise
until th e bl ac k index ma rk points s tr aig ht up .
(B) Align th e •· O" on th e TAPE COUNT METER @ a nd th e reel
index mark on th e SE T DIAL with 1h c bl ac k index mark on
th e DIAL OFF BU TTON s ( Fi g ur e 1 3@ )
Thi s st ep estab li sh es point A on the tape.
(C) Adv ance th e t ap e, by e ith er th e PLAY BU TTON @ or th e FA S T.
FORWARD B UTTON @.
As th e tape feeds forwa rd , the TAPE CO T METER @ move s
cou nt er clockwise as sh own in Figure 1 3(6).
Pu sh th e STO P B UTT ON @ wh en th e t ape has ad v anced t0 the
des ired poi nt B.
(D) Rotate th e ET DIAL @ until its r ed index mar k is a li gn ed with
th e "0" on the TAPE COUNT METER as s ho wn in Figur e 13@.
(E) Push th e R EVE R SE BU TTO 1 ( Fi gu re 13 @)
(F) Using th e REWI ND BUTTO . @, rewind the tape b ac k 10 th e
sta rtin g point A.
As th e tape re wind s or pl ay b ac k in reverse, the TAP E COUNT
METER @ moves clockwise. The sta rt ing po int A is r eac hed
when th e " 0" on th e TAPE COUNT METER @) is a li gned with
th e bl ac k index mark on th e DI AL OF F BUTTON @.
(G) Push th e PLAY BUTTON @.
Th e X.355 wi ll now pl aybac k fr om point i\ to point B, an d up on
re ac hing po int B will reverse itse lf a nd playb ac k to po int A where
it will r eve r se its elf ag ain for pl ayb ack to point l3. Thi s OPhCiltiOD
,· · ·c , shown in Fi ur c 13 ·
S.TQP Rl!D~ ON @ is PliShcd When the p AY B rr . 13 is
pu sh ed again, pl ay ba ck will res um e in th e fo rw ard direction until
reversal occu rs at poi .,t B.
@
(1)
[Q]

OTE:
NOTE:
When you desire the reverse playback operation by using the Tin-foil Sensing Tape , be su re to check and see
the Set Dial (A) a nd Tape Counter Meter (B) is not set within the rang es as shown below Figur es I a nd 2
respectively.
If th e Set Dial (A) and Tape Counter Meter (B) is set within th at range ne ith er case the rever se playback operation
will work.
(I) The red Ind ex Pointer on th e Set Dia l (AJ is set within the range of "1-0-11" on the Tap e Counter Me t er
(B) as s hown by the dotted line in Figur e l.
(2) Th e "0" on the Tape Counter M eter (B) lies within the range as shown by th e dotted line in Figu re 2.
A
B
DIAL~ c
OFF ~
C
(Fig. I)
-r
I
I
I
I
I
I
A
B
AUTOMATIC REVERSE (METER)
(Fig. 2)
\ \ \ \ \
__./'
OPERATING INSTRUCTIONS
In st ep ( C), if the PLAY BUTTON @ is used to a dvance the tap e, it is not necessary to push the STOP BUTTON @ at point B. Ap.
proaching the desired point B. perform teps (D) and (E). In step (C), rotat e, th e SET DIAL @ counter clockwise until its red index mark
has slightly pa sse d th e "0" on th e TAPE COUNT METER @. Th e X.355 will begin reverse play as soon as the "0" aligns itself with th e
r ed index mark. Steps (F) and (G) are not necessary, however, th e information co ntain ed th ere und er is a pplicable.
An alternate proce dure for automatic reverse is to let th e graduated TAPE COUNT METER @ repre se nt 2,400 feet of tap e. Approxim ately
2,3 75 f ee t is the ma ximum le ngth of tap e that can be re ver sed using the TAPE COUNT METER @ Note, as in Fi gure 13@ and steps (B)
an d (D), th at if there were 2,400 feet between points A and B, th e TAPE C OU r T METER @ and the SET DIAL @ wo uld be unable
to distinguish point A from point B. Th e int er vals between numbers re pre se nt 200 feet.
Substitute the following for teps (C) and (F).
( C) Manua ll y rotat e th e TAPE COUNT M ETE R @ c ount er clockwise until the number that repre sents the de si r ed t ape footage between
points A and Bi s a li gned with th e black in dex mark on th e DIAL OFF B UTTO @ (Figure 13@ shows 650 fe et ).
(F) Manua ll y rotat e th e TAPE COUNT M ETE R @ clockwise until th e "0" is align ed with th e black index mark on the DIAL OFF
BU TTON @.
7. AUTOMATIC REPEAT (METER)
Automatic repeat is u se d for playb ac k in th e forward direction only. Wh en the meter is used for automatic repeat. the X.355 will c ontinu.
ously repeat the portion of t ape from point A to point B by playing ba ck in the foward direction from point A to point B, rewi nding itself to
point A and playing ba ck again to point B. Th e opera tion will c ontinue a utomati ca ll y until the STOP BUTTON @ is pu shed. Wh en th e
PLAY BUTTON @ is pushed aga in, playback will resume in th e forwa rd dire ction until rewinding occ ur s at point B.
The procedure for automa tic repeat is th e same as for a utom a ti c reverse except for step (E). Substitue the following for step (EJ.
(E). Push th e IlEPEAT B UTTO @ (Figure 13 (i)).

OPERATING IN S TR UC TIONS
8. AUTOMATIC REVERSE OR REWIND (METALLIC SENSING TAPE)
Automatic reverse or rewi nd with metallic sensing t ape is us ed for play-
bac k onl y. Th e se nsing t ape me thod is convenie nt if th e tape in use is
too long to be meas ur ed by th e TAPE COUN T M ETER @.
(A) Pu sh in on the DIAL OFF BU TTO N 6 and rota te it c ou nter clock-
,, 1ise until it pop s out.
(B) Push th e RE VE R SE B UTT ON @ or REP EAT BU TTO N @ if
re wind is des ir ed. This st ep de- ac tivetes the TAPE COUNT
M ETER @.
(C) Splice a two inch piece ol metallic sensing tape to the en d or at th e
d es ired reverse or re wind point of the tape in u se . Revesal or r ew ind
wi ll occ ur wh en the metallic sensing t ape makes sim4ltaneous
cont ac t with th e R EVE R SE PINS ( I ) a nd ( n) 9 , @). Reverse
(pl aybac k) or re wind will c ont i nu e un til the end of the tape passes
th e TEN SI ON ARM @ and the deck is s hut off.
Fig. 14
9. AUTOMATIC SHUT-OFF WITH REVERSE AND REPEAT
(A) If the RE VE R SE B UTT O N @ a nd th e SHU T- OFF BUTTO @ are both pu sh ed in, th e X-355 will rever se at th e point determ ined
by th e T APE COU 1 T METER @ or th e metallic s en si ng t ape a nd play ba ck in rever se until the e nd of th e tape pas es th e TE 1 SION
A RM @ and th e deck a nd amp lifiers are s hut off.
(B) If the R E PEAT B UTT ON @ and the SHU T-OFF BUTTON @ are both pushed in, th e X- 355 will re wind at th e point det erm in ed by
the T APE COUNT METER @ or s en sing tape until th e e nd of th e t ap e passes th e TENS I ON ARM @ a nd the deck and ampli fi ers ar e
shut off.
( C) If the REPEAT B UTTON ® a nd the R EVE R SE B UTTON @ are both pushed in the rep eat func ti on s up er se des the rever se func ti o n.
(D) If the REP EAT BUTTO @, the R EVE R SE BUTTON @ an d th e SH UT-O FF BU TTON @ are all push ed in, step (B) app li e s.
10, MANUAL REVERSE OR REPEAT OPERATING INSTR
UC TIONS
......_
Fig. 16
®
Fi g. 15
® Pushing the
MA UA L RE VE R SE B UTT ON @) in th e c en ter of the
SET DIAL@ ( Fi g ur e 15 @) will pu t the X- 355 i nt o the reverse ( pl ayb ac k)
or repeat (rewi nd ) function anytime be fo re th e "0 " on th e TAPE
COUNT METE R @ is a li gn ed wi th th e r ed index ma rk on the SET
DIAL @. Manual reverse can also be acc omp li shed by pushi ng the
REVER SE BU TTON on the remot e c ontrol a tt achme nt (Fig ur e 15@).
In order for th e MA
1
UA L RE VE R SE B UTTON @) to function, the
bl ac k index mark on th e DIAL OFF B UTT ON @ mu st be pointing
s tr aight up (Fi gure 15 @) and th e REVER SE B UTTON @ or REPEA T
BU TTO N @ mu st be pushed in.
11. RECORDING
S TEREO - Conn ect the power c ord and load a t ap e as sh ow n on Page 9.
(A) Push the POW ER BUTTON @).
(8) Se t the TRACK SE L ECTOR K OB @ to " ST EREO ".
(C) Set th e SP EE D CH ANGE SWI TC H @ to 7-1 / 2 or 3-3/ 4 as
required.
(D) Se t the FU CT I ON SW IT CH @ to "S TEREO ".
(E) Se t th e EQ UA LIZER SW I TCH @ to 7-1/ 2 or 3-3/ 4.
Th e EQUALIZER SWITCH @ an d th e SP EED CH ANGE
SWI TCH @ must have the sam e setting.
(F ) Push the RESET BUTTON @ a nd set the I NDE X COUNTE R @
to "0000".
The I NDE X CO UN TER @ provides a reference for loca ti ng a
posi ti on on the tape.
(G) In se rt th e micr ophone pl ug s into the M IC ROPHO NE I NPUT
JA CKS @, @.
Mai nt ain a distance of at least seven feet between the mi cropho nes
(see Figure I6@). Mi crophone volume level may be adj usted and
bal anced by th e MICROPHONE V OL UME CONT ROL
KN OB S @, @) . Norma l re cording sh ould not exceed "0" on the
VU meter s@). If an ext e rn al amplifier is c onne cted a nd in use,
f eed back c an be pr ev e nt ed by ad ju sting the VO LUM E CO '-
TROL K NO BS @, @.
1H]

OPERATING INSTRUCTIONS RECORDING
[j]]
(H) Push eith er the RECORD O U TPUT BUTTON @) or the PLAY- ©
BA C K O U TP T BU TTON @ .
If th e RECORD OUTP T 13 U TI ' ON @) is used and th e S PEAK-
ER S WIT CH @ is " 0'1 ", th e pr og ram so ur ce may be monit ored
as it is being recorded.
If the PL AYB AC K O U TP T BUTTON @ is used and the
SP EA KER S WIT CH @ is "O N", th e recorded signal wi ll be mon i-
t0red as th e tape passes the playba ck h ead.
Th e vol ume may be controll ed by th e VO LU ME CONT ROL
K NOBS @) , @). @
(I) Push t he PLAY 13 TTO N @.
(J) Push the RE CO RD S AFETY 13 UTr O N @.
T he R ECORD SAFETY 13 TI ' O N @ is e quip ped with the
R ECO RD SAF ETY LO C K I to pr eve nt inadv e rt en t er asure ol
r eco rd ed tap es. Turn the RECO RD S AF E TY LO C K @ clockwise
unti l its red mark is aligned with the white mar k on the r eco rder.
(K) Chec k that th e RE CORD I NG I ND I CATO R LIG HT 2 is on.
If the light is no t on, th e X-355 will not record.
(L) Push t he STO P 13 TTO N@ to s tep recording. © ...,. ...... - ....,,..
To resume recording, the PLAY BU TI 'O N @ and the RE CO RD
S AF E TY BU TTON @ must be dep ressed again.
MO NAURAL- F or mon a ural recording, subst itut e the following s tep s
for steps (B) and (G) and add st ep (M). Follow th e rest of th e st ereo
procedure.
(B) Set the TRA C K S ELEC T OR K NO B@ to" 1-4" or "3 - 2" as requir-
~- m
(G) Inse rt th e microphone plug int0 the LEFT M IC ROPHO NE
INPUT J AC K@.
Onl y the left amp lifi er is used fo r mona ural r eco rding.
(M) Turn the t ape reels over to record on tr ack 4 or track 2 as app li cab le.
If th e so und sources are so far fr om t he microphone s t hat the
M ICR OP H ONE V OL U ME CO 'ITROL S @,@ mu st be turn ed
up high, some hum may be i nt roduced . To avoid recording the
hu m, att ac h a gr ou nd wire to the deck.
12. RECORDING FROM DISCS OPERATING
IN STR UC TIONS
To rec ord from a stereo or monaura l disc, a C RY TAL PICK- UP ( 0.5-1 vo lt ) or a C ERAMI C P ICK-UP may be connec ted directly to th e
Li l E I NPUT JA C KS ®,® in s tep (G) of the recording procedu re. If a MAGNET IC C ARTRIDG E is used, it mus t be co nne cted t0 a
s eparate pre-amp lifi er or ext erna l amp li fi er before being co nnect ed t0 the X-355 LI NE INP UT JA C KS ®,® · VU level is c ont rolled with
the LINE VOL M E CONTROLS @,@ .
13. RECORDING FROM AN EXTERNAL AMPLIFIER
lf an . . ner- ampl ifier c ombination is used( co nn ec t t he TAP E OUTP UT l ea ds of th e e xt e rn al amp li fie r to the LINE
tRE- RE COR DED TAP E
G of the r eco rdin pro c edure. VU level is co ntr o ll ed with th e LI NE V OL U ME CON T ROLS @,@ . T he
1at c an be selected on the e xt erna l a mp li1er.
Fi g. 17 14. RECORDING FROM ANOTHER TAPE RECORDER
If a noth er X- 355 is used, c onnec t the LIN E OUTPUT J ACK @) , @ ol
the pl ay b ac k ma chine to the LI NE 11 PUT JACKS @, ® of the rec ord-
ing m ac hine in step (G) of th e reco rd ing proced ure (Fi gure 17 a ).
If one of the AKA i M-series record ers is used as a playbac k m ac hine,
c on n ect its sp ea k er jack s tO th e L IE I NPUT J ACKS @. @) of the X- 355
in step (G) of the recording procedure (F igure 17 b).
VU level is controll ed with th e LINE VOLU M E CO NTROLS @,@ .

OPERATING INSTR UC TIONS
15. MONITORING
Ill)
St ep (H) of the recording procedure describes monitoring. If a set of stereo headphone s is used they sh ould be of the low i mpedance type,
pr efer ab ly 8 ohms. If the h eadp hones have two sepa rat e plug s, insert them in the EXTE R AL SP EAKER JACKS @),@. The PEAKER
SWITCH @ mus t be '· ON". If the h eadpho nes h ave only one plug in se rt it in to the STEREO H EADPHONE JACK @ The SPEAKER
SWITCH @ m ay be "0 1 "o r " OFF ". Monitoring procedures are the same for recording or playbac k.
16 . REVERBERATION
(AJ Set the S PEAKER SWITCH @ to " 0FI' ".
(B) Pu sh in th e RECORD O UT P UT B UTTON@) and the P LA y _
BACK OUTPUT BUTTO @.
(C) Confirm th at there are no co nnec ti ons to the Li t E INPUT JACKS
®,@.
!D) Insert th e mic rophon e plugs into t he MIC RO P HO NE JA C KS @,@.
(E) A djus t the M IC ROPHO E VO LUME CONTROLS @,@ 10
the proper level on the VU meters.
F ig. 18
Direction or tape
~
MI C~
(F) Increase the LI NE V OL U ME CONT ROL S @,@ to appro xi-
m ate ly ma xim um .
MI C. VOLU ME
(G) Push the PLAY B UTTON @ an d the RE CO RD SAFET Y
B UTTON@.
~!
------ ,
I
The reverberation level may be contro ll ed by the LI NE V OLUME
CONTROLS @,@).
VOLUME
I .--- ---, ,,..-,
L~ ~~~L1"~:. ~--{ V. U)
L ____ I ,_ .,.
Reverb era tion r eco rdin g ca n be made monaura lly or in stereo.
Fig. 19 @
L IN[
VOLU M[
..
17. SOUND ON SOUND
•
i r a -1 .,...-,,
--- .._ ____________ ,M ONl!Oltl---r/ VU I
( H[~'f50~ t ~f0 (~~~£~/
(0 "{/ PHONE
r07 ; 1---,
- 1;'.~~t -- \ vu_)
~- ---- - -- --- -...J (P 8 MONITOR) ..__
S OUND ON SOUND SC H EMAT IC
REVE R BE R AT I ON SCHEMAT IC
OPERATING INSTR UC TIONS
First Recording
(A) Set the SPEAK ER SWITC H @ to " OFF ".
(B) Confirm that there are no c onn ections to the LI NE INP UT JACKS
®·®·
(C) Set the TRACK SE L ECTO R K N OB © to "1 -4" for recording on
track I. ·
(D) Set the FU CT I0 1 SW I TCH @I to " STE R EO".
(E) Inse rt the microphone pl ug in the LEFT MI CRO PH 0 1 E JACK @.
(F) Adju st the LEFT MICROPHONE VO L UME CO TROL @ to
th e prop er level on th e VU meter.
(G) Push the PLAY B UTT O N@ and the RE CORD SAFETY
B UTTON @ and make the fir st rec ord ing, i.e. Do-Re-Mi.
(H) Wh en the first recordi ng is complete, rewind th e tape to the start ing
posi ti on.
Second Recording
(I) Con fi rm th at th e RECORD OUTPUT BUTTON@) and t he PLAY-
BACK O U TP UT BUTTON @ are b ot h in the OU T position.
(J) S et th e TRACK SE L ECTO R KNOB © to "3- 2" for recording on
track 3 while li stening to tra ck I.
(K) Increase the L EFT LINE V OL UM E CONTROL@ to approxi -
mately maximum.
(L) Connec t the stereo headphones to moni tor the first recording on the
left cha nn el { tra ck I).
(M) Push th e PLAY B UTT O @ a nd the RECORD SAF ET Y
BUTTON @.
T he first re cord ing wi ll be heard th rough the headpho nes.
(N) Reset the L EFT LI NE V OL UME CON TROL @ to the proper
level by watch ing the left channel VU meter .
(0 ) After the reset, rewind the t ape aga in to the s tart ing poin t.
(P) Push th e PLA Y B UTTON@ and the RE CO RD SAFETY
B UTTON @.
Th e second recording, Mi-Fa-Sol, is made on trac k 3 as t he first
recording, Do-Re-M i, is moni tored in the h eadp hones. The two wi ll
be comp letely merged on t rack 3, i.e., (Do-Re-Mi, Mi -Fa-Sol).
(Q ) Th e third and s ub se qu ent recordings are made the same as the
second by switching th e TRACK SE LE CTO R KNOB © to " 1-4 ",
"3-2" et c.