MAR.

SPECIFICATIONS

Keyboard ----------

--------

range --------

frequency -- 10 Hz-20

Resonance ---------

Envelope

------- 1 x3-2.5

Decay time -------- 2

s

Sustain level ----- O-100

Release time ------ 2 ms-10 s

Delay time -------- O-l.5 s

Jacks
Signal output --
Phones

cv output ------

Gate output ----

CV input -------

Gate input -----

Ext. sig.

-10

Stereo

1

v: On;+14 v

1

Threshold:

v

or less

Power consumption -- 8-watt

Weight --------- 6.1 kg

Dimensions
605

x 305

mm

no.8

Knob no.57

Knob no.33

Panel H44

-008)

Bender unit

Keyboard X132-F

Side panel

PS-4

R-L set

Roland

Printed in Japan A3

Panel H44 removal screws:

(2)

Jack SG7713 no.4 stereo

'Tap tight binding head

Self tapping binding head

3

Fe,Br

3 x 6 mm

Fe,

Jack SG7622 no.8

Chassis H74

OPH46 (not shown)

Holder

removal screw

Binding head

3 x 6 mm Fe,Br

Tap tight binding

3 10

Fe,Br

head

3

x

Power transformer

supply board

100 v

100 v

v

PSH32

117 v

v

PSH33

MAR.

KEY

F

A

CONTACT LEAF

c

ion.0011

E

SHARP

KEYBOARD PARTS

CHASSIS

ANGLE

CONNECTOR

IO

.

LEAF

PRINTED CIRCUIT

6P

7P

MODEL

6 P

7 P

M O D E L

RESISTOR

32

SK-132-D

052-066

32

identical to SK-132D except for blind

I

7 0 6 )

Power switch

100 v

117

v

!

MAR.

PARTS LIST

Panel

H44

(bender) H22

Side panel

a pair of R and L

4

Foot G-5

rear

Foot G-7

front

068-020

Bushing no.20

panel

004-014

029-022

016-057

063-012

016-008

068-005

068-018

Keyboard

Bender assy PB-4

Knob no.57 rotary

Knob no.33 slider

Strip no.12

no.33

Button no.8

switch

Jack SG7622 no.8 mono

Jack SG7713 no.4 stereo

Bushing no.5

jack

Bushing no.18 red,jack

Power transformer

100 v

Power transformer

117 V

Power transformer

V

SWITCH

power

100

power

117

power

rotary

rotary

RANGE

slide

CAPACITOR

150 polystyrene

1000

polystyrene

0.33 mfd polypropylene

PCB ASSEMBLY

(pcb

(pcb

(pcb

100 v

117 V

(pcb

SEMICONDUCTOR

020-097

020-100

020-039

020-160

0 2 0 - 1 8 9

020-102

TRANSISTOR

017-097

017-118

017-022

017-010

017-014

DIODE

018-014

132473

018-078

018-089

019-009

(noise generator)

FET

FET

rectifier stack

LED

FUSE. FUSE HOLDER

0 0 8 - 0 2 9

MGP 0.25 A prim.

008-060

prim.

V

sec.

fuse clip

P

OTENTIOMETER

slide

029-317

100

slide

500 KA slide

500

slide

029-309

1 MA

slide

029-575

100

slide

029-577

2 MA

slide

028-706

100

rotary

030-951

100 KB rotary

030-641

2 KB trimmer, metal film

10 KB trimmer, metal film

4.7 KB trimmer

10 KB trimmer

47

trimmer

030-471

100 KB trimmer

WAFER TERMINAL. WIRING ASSEMBLY

Terminal

010-186

010-218

EMCS 0750

010-220

EMCS 0950

Wiring assy

0730851

010-228 EMCB 0920851

cm

OTHERS

Holder

Holder

panel)

064-264

holder

Flat cable

Flat cable

Flat cable
Heat sink

MAR.

I

4

MAR.

OPH46

o x i d e f i l m .

NOTES -- Replacing Selected IC, Transistor --

----

When

replacing

take tae following

procedures.

. .

Choose

for

a set of four

leakage.

the

characteristics in

test

:

Check new Q12 for leakage

a

VCO being

the foilowing

after

:

one is

:

at

--

VCO should not drift before

:

tne next d/H pulse

at

stage proves

IC adeqate.

5

MAR.

(Etch mask

View from the foil side

ADJUSTMENT

Fl

KEY DESIGNATION

only for

adjustments

BENDER

Panel setting and connection:,,-

voltmeter!

at 10

1. Flip and hold Bender lever

at

the left(-). Note the reading.

2. Turn and hold the lever at the right

Adjast

on OPH40 for the

reading, but

opposite polarity, as in step 1.

(Difference between two readings must be within

KCV

voltmeter to TP-2 on

1. Press

key and note the reading,

2.

key, adjust

for

reading.

has an effect on

repeat steps

becomes

+ 1

Connect an oscilloscope to

on

Apply reference F note to the

scope

for Lissajous figures.

A) 'WIDTH

Set

at 8'.

1. With

key held down, adjust

for motionless figures.

2. While pressing down

key, adjust

for motionless figures.

F3 pitch will vary as

turned.

3. Repeat steps 1 and 2 until F3 and

figures stand still.

LINEARITY

-- details follow A) WIDTH --

Set RANGE at 2'.

Adjust the pots.

1.

key --- VR-8.

F3 key ---

3. Repeat steps 1 and 2.

Adjustments A and B must be repeated

C)

--refer to

for details--

Set RANGE at 32'.

Obtain stable Lissajous figures.

1.

key --- VR-8.

Place RANGE at 2'.

Obtain motionless figures.

1.

key --- W-7.

FREQUENCY

Set

at 8'.

Set TUNE

midpoint.

1. While playing A2 key,adjust

I

VR-8 for

Hz.

DUTY CYCLE

because of cross interference between them.

Set WAVEFORM at

.

1. Adjust VR-2 for

mark/space.

VCF

A) WIDTH

Set Controls as shown below.

1.

pressing A2 key, set CUTOFF FREQ.

for approximate 1

2. While playing

and

alternateiy,

turn

figure doubles F2 in

cycle.

Connect

Slide up CUTOFF knob to

1. With

key held down, set

for 20

MAR.

OPH47

or

2X945-4

or

152473 or

Metal

oxide film

:

tailored for nearly

equal resistance

0

0

ECEA

mask

Mylar

K

5

6

Ceramic

K

Check point

7

8

Metal film

)

2c

19

18
17

)

selected.