Roland TR-77 User manual

ROLAND RHYTHM INSTRUMENT
MODEL TR-77
SPECIAL FEATURES
1. As it is equipped with newly- developed start switch of
touching type, the operation will do very comfortably.
2. Metronome device is set.
3. Up-tempo switch is set which works with one touch and
double the tempo of rhythm.
4. Fade-out switch is set to add and increase the pleasure
of performance in ending.
Iq
nRoland Corporation

PREPARATION
1. Connect the L-plug of the connecting cord to the low impedance (L. IMP)
of the Output Jack on the rear panel and the I-plug to the Input Jack of
the Organ or the amplifier. When connecting to the auxiliary terminal
(AUX) of Hi-Fi stereo, connect the pin-plug to the terminal after pulling
out the tip of I-plug, The same way, the high impedance (H.IMP) of the
Output Jack on the rear panel will be used. Connect the L-plug to the
Jack from which the better sound is gained, as the quality of tones may
vary in accordance with the types of amplifiers used.
2. Set the level volume knob of each instrument at apoint of the mark "!'
3. Plug the power cord into the AC outlet.
4. Connect the I-plug of the Foot-switch to the START Jack on the rear
panel if you want to control the start with Foot-switch.
OPERATION
Turn the A. C. power switch ON. The tempo pilot lamp shows flicker
signal and repeats itself.
TEMPO ADJUSTMENT
Tempo pilot lamp flickers in accordance with the speed of tempo.
Moving the tempo control knob in the right direction will increase tempo
speed, and moving conversly will decrease tempo speed.
START BAR (Touch plate)
Start and Stop of the rhythm machine can be operated with slight finger's
touch.
METRONOME
Useful to know the tempo of rhythm before your performance. Push the
metronome button, and the beat sound is produced.
If you push the button again, the sound is suspended. Beat sounds have
the same count with the rhythm of rhythm selector.
When metronome works on, you can get any rhythm by rhythm selector
in same beat with slight touch to the touch-plate.
LEVEL ADJUSTMENT OF EACH INSTRUMENT
The output level of each instrument will increase by moving the level
adjusting volume knob to the right.
Moreover, Maracas, Cymbal and High- Hat are able to be adjusted with
one knob.
RHYTHM SELECTOR
10 kinds of rhythm buttons for Jazz and Latin, and the 10 buttons for
Latin rhythms employ an automatic cancel system. The Latin rhythms
do not come out unless LATIN is ON. This device is for prevention of
mixture of Jazz rhythms with Latin rhythms. For example, the button
for Ballad is pushed while Waltz is already depressed, the button for
Waltz is automatically canceled. The same is true of the button for
Mambo (Latin rhythm).
Only when the button for Mambo was pressed before, Mambo comes out
by pressing LATIN, and Waltz is automatically canceled. Reversely,

when the button for Mambo is ON, pressing of Waltz button will make
cancellation of Mambo with automatical change of LATIN.
Notice the speedy tempo of Slow Rock, Ballade, Jazz- Waltz, Waltz, 6/8
March and Bolero.
CANCEL BUTTON
Just one push of Cancel button placed right end of Jazz rhythm selector
cancels all rhythms of Latin and Jazz line, leaving variation only.
BEAT SELECTOR &VARIATION
By pushing one of the beat buttons and turning the VARIATION knob,
the rhythm indicated by the arrow of the knob can be obtained.
FADE-OUT SWITCH
In the closing part of performance, the ending effect is produced auto-
matically by using fade-out switch.
Press the switch "ON" and the volume will be diminished in accordance
with the fade time set beforehand.
Press the same switch again, and the volume will be suddenly restored
to the original, then it will be diminished repeatedly.
This is quite interesting features in performance.
UP-TEMPO SWITCH
Up-tempo switch works remarkably when you want to double the tempo
suddenly and enjoy performance.
Press the switch "ON" and the tempo will be doubled instantly.
With "OFF" switch pressed, the tempo is restored to the former state.
UP-tempo switch adds interest and pleasure to your performance.
RHYTHM COMBINATION
By combining rhythm selector and beat selector simultaneously, interesting
mixed rhythm patterns can be produced. In case of pushing two or more
rhythm buttons, be careful to detach fingers simultaneously.
When combining Slow Rock, Ballade, Jazz- Waltz, Waltz, 6/8 March, Bolero
and others together, three or six-beat rhythm is produced.
Combinations of these will produce interesting rhythms.
PRECAUTION
1. Avoid playing near fluorescent lights, neon lights, transformers and others
so that undesirable noises are not created.
2. It is free from sound distortion, but it should be played under the maximum
limit of the amplifier capacity. To connect the model with amplifiers
having enough ample output power is always recommended.
3. As it covers avery wide range of tones, the quality of tones may vary
in accordance with the types of amplifiers used.
It is desirable to use amplifiers having high selective power.
4. Avoid using "ROLAND RHYTHM" in high temperature or humid places.
Be careful not to let it accumulate dust.

TR-77 PANEL DISTRIBUTIO
Power METRONOME FADE-OUT
Switch Touch-Plate Button Button
START
Latin Rhythm Selector
METRO FADE/ .3055^
POWER UPTEMPO ^MOME OUT rhjjmBA BEGUINE CHA-CHA MAMB0SAMBA1 SAMBA2 NOVA BAION BOLERO TANGO
OFF Urr
ON ON
LATIf
SLOW I.hIhhIM'l I' I'lOUICK LONG! III''IIISHORT
i) =C]H .
TEMPO FADE TIME
Pilot Lamp UP-Tempo Tempo Control
Switch
Fade Time Control
01 1111
1'. no
h
VOLUME
Volume Control
RHYTHM PATTERN
Each sound of percussion instruments is identified by the figure of
notes on the five Hnes.
/
METRO rCRME
^
^^
Low Conga High Bongo Rim Shot Cow Bell Hi -Hat Cymbal
Bass Drum Low Bongo Snare Drum Craves Maracas Tambourine Guiro
Bass jixi^:
i
Bass &Snare -'* iiii
<
m
Fox Trot 1
swing 1
ii
^¥-!( ¥1
£\-7 0^ ^^—pf^ •?r—»—
'' ^i^i^''i'^-^=^^
March i
Parade 21^
\I$
"P ^

>ISTRIBUTION DIAGRAM
Jazz Rhythm Selector Beat Selector Variation Knob
TANGO
-BASS
ROCK'N ROCK'N SLOW ^JAZZ ',^, "o«r*'-r'>. «^'^ BASS &SNAR£
LATIN R0LL1 BOLL 2ROCK BALLAD K^TERN^MARCH WALTZ WALTZ CANttL 2BEAT 4BEAT
(^AptAnpp
01 11iIiino
It
VOLUME
Volume Control
FOX TROT 1FOX TROT 2
/
y^^
SWIN6 1SWING 2( 1.w*''
MARCH SWING 3'
PARADE SHUFFLE "^
01 IIIIITI110 11 1 II IrI1 10 01 1111ir iito 11 11 1 1fmo
C>= =lfc ih |]H
BASS SNARE GUIRO MARACAS. CYMBAL.HIGH-HAT
_J
Percussion Sound Level Control
REAR PANEL
HIGH IMP LOW IMP
START SWITCH J-OUT PUT"!
OOO
For Foot SW. Plug For L-Plug of the connecting cord
(Select better sound Jack)
Voltage Changer AC Cord
_3
Bass =^^?I4
WV
<
IxJ
CO
Bass &Snare
Fox Trot 2
S\N\ng 2
''^M iiiIiiiJ
—~* -•- .
'
-•+-
m#--• m
^
^:
3=P?: :^3: ^^ ^5^
-J- ^ijf '^ ^^ '^^ ^-m-
Swing 3^s A^^
TT"
VShuffle 3^3= i^ 52^

JAZZ Rock'n Roll 1
Rock'n Roll 2
Slow Rock
Ballad
Western
6/8 March
Jazz Waltz
rrI'^tJ^ r\'^
Waltz ry.t TJ"^"I |t T'^'T
LATIN Rhumba
Beguine
Cha-Cha
Mambo
Samba 1
Samba 2
Bossa Nova
Balon
Bolero
Ji .^-IS. Jj ^^^ J, .^r^ Ji .•BTJ.
T-T-2 JJ±=±
l>r 7p-^ -t-
5=^ S 6 6 ^
g-} '^ bT^—T '
-*-^j^ X£Xjg A
i
r'^ pr^T^pr^
.v.. 6666§7"^ 66 ,S666S6 6(S-
7i|; ^-f-f-
Tango
^t^ VVppp-p

"D ^
oO
mr—
>
a
c
-0 I
uH
^I
^
03
3
Q. H
O1
m^
Hv4
>
r"
m
O
CD
1—
O
o
t;
o
>
Q
::d
>
—W^
XT Ul -#-7=r
o-o-o-o-o
^c 2j; s3Q
^R55o
_IQ—Q-Q-Q-
7. //. /a. Z4. eS. 29, 33, 35, 36
Tl CP I/) O
S) ODC,1
6-o-<>--6-6--0--o—
I
nQ??
CAOSZJAOCI-
10
~~
>J-
n
C/1 X
C
I^
-t ^

ROLAND RHYTHM MODEL TR-77
SPECIFICATIONS
Jazz Rhythm Selector Switch g
Rock'n Roll 1, Rock'n Roll 2, Slow Rock, Ballad, Western, 6/8 March, Jazz
Waltz, Waltz.
Latin Rhythm Selector Switch iq
Rhumba, Beguine, Cha-Cha, Mambo, Samba 1, Samba 2, Bossa-Nova, Baion,
Bolero, Tango.
Beat Selector Switch o
2-beat, 4-beat.
Variation Knob (6 steps) i
2-beat-- (Bass Drum, Bass and Snare Drum, Fox Trot 1, Swing 1,
March, Parade)
4-beat (Bass Drum, Bass and Snare Drum, Fox Trot 2, Swing 2,
Swing 3, Shuffle)
Percussion Instrument ]^3
Bass Drum, Low Conga, Low Bongo, High Bongo, Cowbell, Rim- Shot,
Claves, Snare Drum, Maracas, High- Hat, Cymbal, Tambourine, Guiro.
Control Knob y
Level Control Maracas. Cymbal. High-Hat, Guiro, Snare Drum,
Bass Drum.
Volume Control
Tempo Control
Fade Time Control
Touch Start Switch •j
UP-Tempo Switch -i
METRONOME Button 1
FADE-OUT Button 1
Power Swi tch •i
Tempo Pilot Lamp j
Output Jack (Low Impedance :lOKO ,High Impedance :220Kn )••• 2
Footswitch Jack for Start j
Silicon Transistors ••^i
Silicon Diodes ijc
ic •••1
AC Voltage :(IQOV, 117V) or (220V, 230V, 240V), 50/60Hz
Power Consumption :4.9VA
Measurement :640 (W) X310 (D) X95(H) mm (25.2 (W) X12.2 (D) X3.75 (H) inch)
Weight :7.5kgs. (16.5Lbs.)
Accessories
Connecting Cord 2.5m (with Pin-Plug Adaptor) 1
Foot-Switch for Remote Control (to start) •--. ••• l
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Printed in Japan '75. Dec. A-3

^Roland
10272
UPC 10272
;i
la DRoland