Service Manual Roland System 100
Expander 102
My copy is missing the page for the parts-layout for the VCF-VCA- Board. I inserted in this file the page from
the Modul 101 here. The board is identically, but the parts for the noise are not installed.
This file is a scan from papercopies from the original service manual. Never pay for a copy of this file!
It should be available for free.
PANEL DIAGRAM
m
I ■ WW ~lW«b
CONTENTS
Page
1. SPECIFICATIONS
2. PANEL DIAGRAM .
4
3. DISASSEMBLY
5
4. GENERAL LAYOUT ...
6
5. CIRCUIT DESCRIPTION
6. GENERAL BLOCK DIAGRAM
9
7. SEMICONDUCTOR ELECTRODES ...
9
8. PRINTED CIRCUIT BOARD ASSEMBLY
PARTS LIST AND CIRCUIT DIAGRAMS '. ,«
8-1 . VCO-5 VCO BOARD
10
8-2. OP-28 VCF-VCA BOARD
12
8-3. OP-29 RING BOARD
14
8-4. PS-22, PS-24 POWER SUPPLY BOARD
16
9. WIRING DIAGRAMS
10. ADJUSTMENTS
18
11. PARTS LIST
31
12. PARTS PICTURE
35
i
-4-
- 1 -
mm
MODEL-102
1. VCO (Voltage Controlled Oscillator)
Frequency Range:
VCO Output:
VCO Sync. Input:
CONTROLS
Waveforms:
Frequency:
Fine Tuning:
Pulse Width:
Ext. CV or S/H:
LFO
2. RING MODULATOR
Ext. Input:
Ring Modulator Output:
3 Hz -40 KHz
10 Vp-p
Strong and Weak
Triangular, Sawtooth, Square, Pulse (Pulse Width Controlled)
10 Hz - 10 KHz (at A2 key) continuously variable
1 oct.
5% - 50% (Manual, ADSR, LFO)
1 V/oct.
10Vp-p
10Vp-p
3. AUDIO MIXER
Ext. Input Impedance: more than 50Kft
CONTROLS
VCO, Ring Modulator, Ext. Input
4. HIGH PASS FILTER
HPF Cutoff Frequency: 10 Hz - 10 KHz
5. VCF (Voltage Controlled Filter)
Cutoff Frequency Range: 20 Hz - 100 KHz
CONTROLS
VCF Cutoff Frequency: 20 Hz - 20 KHz
Resonance: - self oscillation
LFO/Ext. CV: 1 V/oct.
KYBD CV
ADSR
6. VCA (Voltage Controlled Amplifier)
CONTROLS
Initial Gain
LFO
ADSR
7. ENVELOPE GENERATOR (ADSR)
KYBD Gate Input:
KYBD CV Input:
ADSR Output:
Env. Input:
CONTROLS
Attack Time:
Decay Time:
Sustain Level:
Release Time:
+14 from MODEL 101
1V/oct. from MODEL 101
+6V (contour peak)
+6V (contour peak)
0.4 msec -3 sec.
0.8 msec —6 sec.
- 100% (contour peak)
0.8 msec -6 sec.
-2-
> w i w aw WW w • w ■ fc— i»l J w*
m
• ■• .'■
8. LFO (Low Frequency Oscillator)
Wave Form: Sawtooth, Sine, Square
CONTROL
LFO Frequency: 0.15 Hz, -25 Hz
9. SAMPLE AND HOLD
Ext. Input:
S/H Output:
Clock Output:
CONTROLS
Sample Mode:
Sample Time:
Output Lag:
10. OUTPUT MIXER
Input:
Input Impedance:
11. AUDIO SIGNAL OUTPUT
High Output:
Low Output:
10Vp.p
± 14.V
OFF, Sawtooth, Reverse Sawtooth, Triangular, Ext. Input
0.6 Hz- 125 Hz
-2 sec.
6Vp-p max.
50K ohm
3Vp-p with 1K-ohm output impedance.
0.3Vp-p with 1K-ohm output impedance.
12. HEADPHONE OUTPUT
0.3V max. into standard 8-ohm stereo headphones.
13. DIMENSIONS AND WEIGHT
Overall Size:
Net Weight:
14. POWER REQUIREMENTS
100 -120V 50 -60 Hz
220 -250V 50 -60 Hz
15. POWER CONSUMPTION
10W max.
610 mm wide, 155 mm deep, 305 mm high.
7.5 Kg
-3-
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ftil
•. i)'-'v : 3'.',u"/'--i"iC> '•'"
!
1976-10-30 SYSTEM 100-102
GENERAL LAYOUT
CONTROL PANEL ASSEMBLY
SIDE BOARD
N0.8
CHASSIS N0.106
SIDE BOARD
NO 7
-6-
1976-10-30 SY5TEMKX3-102
DISASSEMBLY
System-100, Model-102 can be disassembled in the following steps when necessary for checking and readjustment.
The power cord must be disconnected from the power source before proceeding with disassembly.
Remove the 5 screws on the lower front chassis.
Remove the 7 front panel screws and also loosen the 10 side board screws. The panel can be opened by pulling the top
of the panel.
Use a string through the screw holes to keep the frnt panel from falling too far forward.
JS-
f/
LOOSEN
BOTH SIDES
5-
■ '\ - ; ^.j.V : .-■*
mam
1976-10-30 SYSTEM 100-102
DESCRIPTION of PCB(Printed Circuit Board) ASSEMBLY
Since the circuits of the Model 102 are similar to or the same as the Model 101 circuits, refer to the Model 101 section
of this manual (pp. 7, 8) for circuit descriptions not given below.
1. VCO BOARD ASSEMBLY (VCO-5)
1-1. SAMPLE and HOLD
This circuit takes the periodic samples of voltage levels from the LFO waveforms or external source to produce
different patterns of up and down voltage steps.
2. VCF VCA BOARD ASSEMBLY (OP-28)
3. RING BOARD ASSEMBLY (OP-29)
3-1. RING MOD is a device which makes use of the double balanced modulation by an IC.
The RING MODULATOR is a balanced multiplier which supresses the two input frequencies but passes both
the sum and difference frequencies of the inputs.
3-2. The CLOCK OSC determines the sample timing of the Sample and Hold circuit.
3-3. The LAG is a variable RC time constant for rounding off the sharp edges of the Sample and Hold output
waveform.
3-4. The INVERTER is used to invert the LFO waveform for use in the Sample and Hold circuit.
3-5. The VCO SYC function uses an external pulse (usually the square wave output of the Model 101 VCO SYNC
OUT jack) to synchronize the Model 102 VCO to an external source.
-7-
1976-10-30 SYSTEM 100-102
4. POWER SUPPLY BOARD ASSEMBLY (PS-22, PS-24)
This assembly is a voltage regulator circuit which provides constant voltages of +14V and -14V.
Note: The PS-22 board is for 100V - 120V, while the PS-24 board is for 220V - 250V.
Fuse 0.5A, Fuse Holder TF-758, of Label No. 69, are used on PS-24 alone.
For PS-22, use a jumper wire on the Fuse Holder.
-8-
GENERAL BLOCK DIAGRAM
SEMICONDUCTOR ELECTRODES (TOP VIEW)
, ■
- : ... '■' '.' ««
p
:■ ■ r,
1 c
2 C
3 C
4 C
1
If.
2
;;■
3
r*}
4
,"
5
;*,
6
O
7
/•-;
8
7
3 6
3 5
314
3 13
312
311
310
3 9
1 8
CA1458(G)
723CN
TA7136P
MA726
TA7504M
301AH
CA3080
CA3130
ITS1276
S yJ-
v — G
E-412
D — (f
J] D
(ITS30546)
G — -^
^ S
2SA733(Q)
2SC945(Q)
2SC828(R)
2SC100CKGR)
2SK30A(Y)
2SK30A(GR)
G -
K -
N13T1
B
C
E
o
n.
2SD234IO)
-9-
VCO-5 VCO BOARD ASSEMBLY PARTS LAYOUT (152-005)
: 1 '• ;
'. I
S/H
INPUT
from
SAMPLE
MODE
SW
-14V
G
+14V
VCOCV IN
I
1 I
h-
cc
5
H
'
cc
'D
en
>
> o
Q
>
CO
>
3
O
QC
>
QJ .
s
o
LU
CC
2
2
x
LU
r v v r t
Q_
o
Q.
O
37
rt
?4 25 26 27 23 2? 30 31 ?2 33 34- 35 36
^ SET
n_r;
to
WAVE
FORM
SW
aa:;
to
WAVE
FORM
SW
to
WAVE
FORM
SW
24- 2<? 26 27 23 29 30 31 32 33 34 ?! 36 37 JS
® © ® ®€> ©©©©©©© © SCALE © sy SCT © _
R2i o i
R2^~'
SET
14 © (fcto7j)(£l£DC / ,,
4(§) ((«ofej)ls( + «-f
■; '•-
Metal Film Type
Carbon Type
/VooopJ^y
Polystyene
Film Capacitor
*
2SK30A (GR)
2SA733 (Q)
:
2SC945 (Q)
s
1 S2473
Metal Film
Resistor (± 1%)
- 10
VCO-5 VCO BOARD CIRCUIT DIAGRAM
.1
\-
'■ it ...
" v '■' '
j." ■'■■ ■; ■>
' ' . I".-
NOTES: IC201 , 202 CA1458G
IC204.205 CA3130
IC206.208 301AH
IC207 TA7504M
(MF): Metal Oxide Film Resistor.
ALL DIODES ARE 1S2473
-11 -
OP-28 VCFVCA BOARD CIRCUIT DIAGRAM
■ ■ ■ ■
■,,-,.. ■.:
i»fff$t
VCO-b
NOTES:
J ,;,... :S ,
+I4V G -I4V
Q315-318 2SC945Q (SELECTED VCF)
Q327, 328, 330, 331 ....2SC1000GR (SELECTED hfe)
IC301.302, 304 CA1458G
IC303 TA7504M
IC305 CA3080 (SELECTED C)
IC306 TA7136P
(T) : Tantalum Capacitor
ALL DIODES ARE 1S2473
UNLESS OTHERWISE SPECIFIED
-13-
1976-7-30 SYSTEMIOO-IOI
OP-27 VCF VCA BOARD ASSEMBLY PARTS LAYOUT (149-027)
NOISE AMP,] OUTPUT
Jxck
I MIXER
INI A-&10HZ
f / /
PHONES INPUT
RESONANCE' VR
ADSR &ATE 1M
ADSR OUT /t\_
ADSR CfATE OUT
ADR-VR COM.
1S2473
0:
m : 2SK30A(Y)
(f) : 2SA733(Q)
Q : 2SC945(Q)
P I 2SC1000(GR)
— -Ny «> -t to
® ® ® © ©
$n o o
0» /— — V
;®
^©i-e>
^© ©^ 05SO ®@ C5a£> ®@©
g g v I g s g
2SC828(R)
(Selected NZ)
2SC945(Q)
(Selected VCF)
2SC1000(GR)
(Selected hfe)
131 U lU'JO JIJlbVli^^-lOA
OP-29 RING BOARD ASSEMBLY PARTS LAYOUT (149-029)
;$;?-.
".-.::
to VCOSYNC
(VCO-5)
©
i
SYNC. IN
STRONG
WEAK
LED LD64R
OJ'
KYBDGATE IN
SAMPLE TIME
S/H OUT
CLOCK OUT
500KA -^
?»£■ Cfl from S/H (VCO-5)
LAG v - y
- ^1><4 to SAMPLE MODE SW
-LNJ^ from LFO
VCO
LFO,E>,T. IN
CLOCK IN
*<£}) to S/H (VCO-5)
RING MOD. OUT
to AUDIO MIXER (OP-28)
o
o
Q-V02
c.t&Z
e =
1S2473
*
2SK30A (GR
D-'
2SC945 (Q)
(?) : Tantalum Capacitor
(G) : 1/4R±2%
-14-
i»/o-iu-ou otsicjvii\jvj-iv-»^
OP-29 RING BOARD CIRCUIT DIAGRAM
■ ■
■ v.;
'.■•?■■-■'
NOTES: IC401 •-- TA7504M
C403--- TA7136P
ALL DIODES ARE 1S2473.
@ : Tantalum Capacitor
HgH§H6>
tl4v 6 -I4V
-15-
TS^^^JU JUIUINUU IUJ.
PS-22 PS-24 Power Supply Board Assy Parts Layout
Circuit Diagram
■::,, K
; :'' '•■■'
. I, .'
A-246I-SC
O^
REPLACE ONLY WITH SAME
TYPE 500mAT 250V FUSES.
o
2SD-
23U0)
o
-**-
Label Mo. 4?
3 r^cN
4-V
*
PS-22
(100-1 20V)
+ 14V
PS-24 (220- 250V)
Power Switch
MS-066 4K
Power Transformer
022-86C(100V-120V)
022-86D (220V-250V)
-16-
WIRING DIAGRAM
i^ikj- IVJ-o»J OIOI CIV! IV^\^-I\_'^
I, .'.
&£ .
••r5'.'.-
XY90
CLOCK &*rE
OuT in
SING
our
OUT
VCO SrNC IN
STRONG WEAK
VCO
OUTPUT
EXT-
END. ADSR
>N OUT
VCf
VGA
err.
exec*
CHECK
Audio
OUTPUT
POINT
FWNT
IN
HIGH LOW
r
6 o— o-j>— o
^
SAMPLE
TIME
4
of F PA /H /V\ EKT
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v
4 4 4 •
H ha hn f"^
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h
VOLTAGE
FOLLOWER
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a
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nn
IMK
-®— ®@<ghN
/
AA'
pecAr
ATTACK RELEASE
fl
Y
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AA
SHAPBR
A
ITU
SHAP6R
P.W.M
ru:
vco-s
fte
D..i
AA>
SHAPER
N\
SHAPER
N\
•
AOSB
HATE
H PASS
FILTER
OP-28
CONTROL
VOLTAGE
MIXER
too
C>~
H'H
AUDIO
MIXER
c>-
R6
®h4@ —
HEAD
PH0N6 |— '
AMP.
LO-MO \
43>-ft4)-W5)-
*WV -t4V
+ WV -wv
1-I4V -id/
PS— 22 IOOV-I20V-
PS — 24 230V-250V -
-17-
SYSTEM 100, MODEL 102 ADJUSTMENT PROCEDURES
la/b- !U-»iU J>YS> I fcM 100-K32
1. Power supply Voltage Adjustment:
a) Connect 2 Digital Voltmeter to Terminal "10" of the Power Circuit Board (PS-22, PS-24), and adjust VR101
(+14V ADJ.) for + 14V
b) Adjust VR102 (-14V ADJ.) for -14V at Terminal "13".
c) Tolerance: 14V ± 100 mV.
LFO Waveform Adjustment:
a) Connect the Oscilloscope to Terminal "54" of the VCF-VCA Board (OP-28), and adjust VR301 ( N\ wave
ADJ.) for a Sawtooth wave.
d) Digital Voltmeter should have:
Resolution voltage down to DC 10 mV or more
Input Impedance 1 Mohm or more
Good
Bad
10V
0-I
OSCILLOSCOPE
IP
(6) (ot (O) (0)
QOOQ
POWER
SUPPLY
BOARD
PS-22 100-1 20V
PS-24 220-250V
ADJ.
ADJ.
-14V
77
-{+14V)-
-(-14V)-
-18-
DIGITAL VOLTMETER
114.00V
'-"'.'
/.-vs\ ■ ., •■ :. ... ; »
. '■<> ■ ' ■.[•-,■ ■
OOOO
7?T
OOOOOOOOOOOOOOOOO OOOOOOO
54 O
®
VCF. VCA-BOARD
(OP-28)
O NK wave AD J
o @
(VR301)
O
o
o
o
®
° ©
®
O
O
O
O
O
-19-
l»/t»-10-30 SYSTEM 100-102
ADSR Zero Adjustmeat:
a) Set the controls of the Control Panel as illustrated below:
(102)
b) Connect an Oscilloscope or Digital Voltmeter to Terminal "88" or the ADSR OUTPUT JACK and adjust
VR302 (ADSR Zero ADJ.) for 0V.
OSCILLOSCOPE
DIGITAL VOLTMETER
VCF. VCA-BOARD
(OP-28)
ADSR
Zero ADJ
O
Sensitivity
10mV/cm
TTT
OOOOOOOOOOOOOOOQOOOOOO ooooooo
o
®
®
o
o
o W ®
°(VR302)
■ ®r ®
©
o
o
o
o
o
mm
RING MOD Adjustment:
a) Set the controls of the control panel as illustrated below:
' ^"••-i"Ul >
DE-1
.Q]<x>-
5
a--fj
b) Connect the Oscilloscope to terminal "113" or the RING OUTPUT jack and adjust VR-401 (SIG BAL) for
minimum output.
c) Allowable voltage limit; under 100 mV
d) Reset the controls as illustrated bellow:
e) Adjust VR-402 (MOD BAL) for uniform waveform and amplitude.
lOVpp
GOOD
O
O
o
o
o
o
o
o
o
o
o
o
RING-BOARD
O (OP-29)
O
/-TN MOD BAL
\®J (VR402)
SIGBAL.
q (VR401)
O
®
©
BAD
RING
OUTPUT
JACK
A
OSCILLOSCOPE
*JH
20-
-21 -
upik
VCO ADJUSTMENT
1. Triangular! AA ) Wave Form Adjustment:
a) Set the Control Panel as shown below.
FINE TUNING
FOEQUENCr VWVVE fOBM
b) Connect the Oscilloscope to Terminal "40" or the VCO OUTPUT JACK, and adjust VR205 ( AA WAVE
ADJ.) for the triangular waveform.
c) Then, adjust VR206 ( AA ZERO SET) so as to balance this output waveform on 0V.
Good
Bad
-5-
o oo oo oo oo o oo o o o
o
o
O
O
o
oW3
© ®«
AA zero SET
@ ©^
O (VR206)
VCO-BOARD
(VCO-5)
AA wave ADJ.
® '
(VR205)
VCO
OUTPUT
Jack.
A
OSCILLOSCOPE
-22
1976-10-30 SYSTEM 100-102
1 ■
- , ■ j
2. Square ( nj ) Wave Adjustment:
a) Set the Control Panel as shown below.
FINE TUNIHG FfltQUENCV
WhVF FOAM
fsN ru '«»
/sa J — i nu
b) Connect the Oscilloscope to Terminal "39" or the VCO OUTPUT JACK on the VCO Board (VCO-5), and
adjust VR207 ( nj 50% SET) for a 50% - 50% square wave.
c) Re-set the Control Panel as shown below.
'MOjtNCV VWVI F0M4
M\ ru •--
■#
B¥
VOV'AOt
CONTROLLED
OK'LL»tO"
••Pulse Width Moo (QJ ■
m
PULSE VYIOTH
d) With the same connection as in b) above, adjust VR204 ( HJ 5% SET) for a 5% - 95% square wave.
e) Check that the wave form does not disappear when the front panel FREQUENCY control is turned from 10
Hz to 10 KHz.
10--
0-
50%
50%
O OOOO OO OOO OO o o o
o
O
O
O
O
oBOH
><on (©) (©) 5 * r 2w>
/rrs 5% SET ST\
Q0>) (VR207)(®;
®
O
o
o
VCO-BOARD
(VCO-5)
5% 95%
VCO
OUTPUT
Jack
A
I
I
l
OSCILLOSCOPE
777
-23-
«7*U~ l\J~OKJ ON">lUVIIW-tUl
3. VCO WIDTH Adjustment:
a) Set the Control Panel as shown below.
FINE TUNING FfigOUENCY W»VE FORM
'■jCQ STHL *>UI>
Voltage
CONTflOLLEO
OSCILLATOfl
f
E»T
Chi
^■PiASEWmTHMoo flLI -v
'USE width
(102)
b) Connect the Oscilloscope or Frequency Counter to Terminal "40" or the VCO OUTPUT JACK, and adjust
VR201 (WIDTH) so that the frequency generations on Keys F1, F2, F3, and F4, become all octave relations
with each other.
c) When tuned with a Tuner, use VR202 (FREQ.) for adjustment of the frequency of Key F1.
S KEYBOARD
FREQUENCY COUNTER
Q
Hz
F1 F2 F3 F4
^l*- 71 *^1:2>" ^1:2^
ooooo oo ooo oo o o o
WIDTH /rT «v ^~. / ^ N
(VR201) MM (©)(©)
@ ® Q
°o®
FREQ
(VR202)
40) <N
VCO-BOARD
(VCO-5)
OSCILLOSCOPE
V H
c*
o
777" -777
TUNER
TL
FiF 2 F 3 F4
777
-24-
■ ■■■■■■ ■<
' ■ »— *•! t^ss^ iw«
4. VCO FREQ. Adjustment:
a) Set the Control Panel as shown below.
FINE TUNING FXEQUENCV WAVE FOAM
VOUACI
COMTMXLEO
OsciLLAfon
^-PiaseWiothMoo fill -^
QiW
I 1 ADSB
§. [ELs
— LJ ^o —
PULSE WIOTM
(102)
b) Connect the Oscilloscope or Frequency Counter to Terminal "39" or the VCO OUTPUT JACK. With the
front panel FREQUENCY control set at "10Hz", adjust VR202 (FREQ) so that the A2 key on the
keyboard produces 10Hz (100ms).
c) In the same manner, adjust VR203 (SCALE) so as to have 10 KHz (100 /is) when the FREQUENCY control
is at "10 KHz".
d) Repeat the above b) and c) until the frequency output matches the "10 Hz" and "10 KHz" indications)
KEYBOARD
»»1
FREQUENCY COUNTER
A2
O
O
O
O
O
oBJi
ooooo oo oooooo o o
@@@
SCALE
© (VR203) (®) *
FREQ
(VR202)
VCO-BOARD
(VCO-5)
®
-25-
VCF ADJUSTMENT
.;■:-
1. VCF DC BAL Adjustment:
a) Set the Control Panel as shown below.
FREQUENCY
Low
Frequenc
qscillatof
**V£ FORM
fV\ ru wu
(rW
EXT INPUT VCQ RING MOO
J
High
Pass
F ILTER
Voltage
Controlled
F ILTER
-#•
y
==
J =A=
b) Connect the Oscillscope to Terminal "71" or the VCF CHECK POINT JACK on the VCF VCA Board and
adjust VR305 (VCF DC BAL) so the output waveform is symmetrical.
Check that waveform remains balanced when the CUTOFF-FREQ. control is moved between 10 and 0.
OSCILLOSCOPE
VCF
CHECK <■
POINT
Jack
oooooooooooooooooooolo ooooooo
_ (71)
O
©
o
o
VCF. VCA-BOARD
®
o
o
O
o
(OP-28)
o
o
o
o
o
o
o
o
©
VCF
DCBAL
(VR305)
o
o
I
2. VCF WIDTH Adjustment:
a) Set the Control Panel as shown below.
SIT INPUT \CO SIHG MOO
n ri—
o=- =
High
Pass
F'LTfR
Controlled - uMft '
cv _
■0 <OU
b) Connect the Oscilloscope to Terminal "71" or the VCF CHECK POINT JACK, and adjust VR304 (WIDTH)
so that the frequency generations of Keys Fl, F2, F3, and F4, are all in octave relationships with each other.
d) Check that such octave relations remain the same when the front panel CUTOFF FREQ. control is moved
between 10 and 0.
KEYBOARD
i piiiiiwii
F1 F2 F3 F4
VCF
CHECK
POINT
Jack
A
OSCILLOSCOPE
^1:2-" ^1:2^ ^-1:2^
777-
ooooooo ooooooo oooooo<
©
©WIDTH
(VR304)
OOOOOOO
VCF. VCA-BOARD
®
(OP-28)
O
o ®
O
®
O
i ®
o
o
®
®
o
o
o
o
o
-26-
.*' ■:■■■'■■
-27-
3. VCF FREQ. Adjustment:
a) Set the Control Panel as shown below.
INPUT vCO
~\f~
={]=' --O-Or-
HlCM
Pass
F \Wt
VAMd
l
-#■
no *o»
b) Connect the Oscilloscope to Terminal "71" or the VCF CHECK POINT JACK on the VCF-VCA Board
(OP-28), and adjust VR303 (VCF-FREQ.) so the frequency produced by Key F1 is 20 KHz (50 ms)
c) Adjustment as above may sometimes disturb the VCF WIDTH Adjustment as done in (2) above. Repeat,
therefore, both adjustments of (2) and (3) until both WIDTH and FREQ. are correct.
■
1
'- V
. '•■'-: "
■
.
$m
KEYBOARD
VCF
CHECK
POINT
Jack
I
I
OSCILLOSCOPE
F1 : 20KHz (507*0
OOOOOOOOOOOOOOOOOOOO
O
777
®
©
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VCF. VCA-BOARD
®
(OP-28)
o
VCF
©JFREQ r
—^ (VR303) u
O
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Q
O
O
O
O
-28-
i»/o- i«-»-c«-( oroi tu\nnj\j-rv'4
VCA ADJUSTMENT
r'-'-'ii'.i.)
1
1
1. VCA CUTOFF Adjustment:
a) Set the Control Panel as shown below.
b) Connect the Oscilloscope to Terminal "69" or the VCA CHECK POINT JACK on the VCF VCA Board (OP-
• 28), and set VR307 (VCA CUTOFF) at the point where the output wave form just dissappears.
c) Check that, when the INITIAL GAIN on the Control Panel is moved to "10", the output voltage is within
2-3 Vp-p.
OSCILLOSCOPE
VCF
CHECK <
POINT
Jack
000000000000000000*000 OOOOOOO
O (69)
©
VCA
VCF. VCA-BOARD
(OP-28)
© ©
®
O
I ®
©Cutoff
(VR307) O
©
@ o
O
o
-29-
2. VCA DC BAL Adjustment:
a) Set the Control Panel as shown below.
Low
F"EQUENCfJ
OschlatohI
y
b) Conned the Oscilloscope to Terminal "69" or VCA CHECK POINT JACK on the VCF VCA Board (OP-28),
and adjust VR306 (VCA DC BAL) for minimum "click" at the output.
OSCILLOSCOPE
VCA
CHECK <_.
POINT
Jack
O
O
O
O
oooooooooooooooooolooo OOOOOOO
O (g)
®
VCF. VCA-BOARD
(OP-28)
3)
o
o
®
®
(^®)(VR306) O
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O
§ ©
O VCA
DC BAL.
O
O
-30-
1976-10-30 SYSTEMTOO-102
SYSTEM-100 MODEL-102 PARTS LIST
VC0-5 VCO Board Assembly (152-005)
052-134C Printed Circuit Board No. 134C
020-025 IC
020-024 IC
020-052 IC
020-010 IC
020-032 IC
017-013 Transistor
017-012 Transistor
017-016 FET
017-036 FET
018-014 Diode
028-006 Trimmer Potentiometer
028-007 Trimmer Potentiometer
029-108 Trimmer Potentiometer
029-109 Trimmer Potentiometer
044-025 Resistor
044-031 Resistor
044-037 Resistor
044-041 Resistor
044-042 Resistor
044-047 Resistor
044-048 Resistor
044-050 Resistor
044-052 Resistor
044-054 Resistor
044-055 Resistor
044-057 Resistor
044-058 Resistor
044-060 Resistor
044-082 Resistor
044-064 Resistor
044-066 Resistor
044-068 Resistor
044-072 Resistor
044-167 Resistor
044-599 Resistor
044-829 Resistor
044-840 Resistor
044-845 Resistor
044-846 Resistor
044-847 Resistor
037-001 Capacitor
037-006 Capacitor
035-005 Capacitor
035-01 6 Capacitor
035-026 Capacitor
035-028 Capacitor
035-137 Capacitor
032-033 Capacitor
032-037 Capacitor
CA3130
301 AH
CA1458G
TA7504M
MA726
2SC945 (Q)
2SA733 (Q)
2SK30A(GR)
E412I17S30546)
1 S2473
50Kn (B)
100Kfi (B)
50KH <B)
100Kft (B)
ioon
330ft
1Kf2
2.7Kn
3.3Kfi
8.2KI2
10Kf2
i5<n
22Kn
33Kft
39Kn
56Kfi
68Kfl
100KS2
200KI2
220KJ2
330KJ2
470Kft
IMfl
2.7Mfi
10MJ2
820ft
22Kfi
82Kft
100Kft
120Kn
10pF
100pF
0.001/jF
0.01/iF
0.068m F
0.1/iF
1000pF
10/iF
100/iF
EVL-R4XA0054B
EVL-R4XA0015B
PNB-04C3A-503H
PNB-04C3A-104H
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
•1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/2W
1/2W
CRB-1/4FX
CRB-1/4FX
CRB-1/4FX
CRB-1/4FX
CRB-1/4FX
50V
50V
50V
50V
50V
50V
100 V
16V
16V
±5%
±5%
±5%
±5%
±5%
±5%
± 5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
±10%
± 10%
± 10%
± 10%
± 10%
±10%
± 10%
+
±
Ceramic
Ceramic
Mylar
Mylar
Mylar
Mylar
Polystyrene
Electrolytic
Electrolytic
-31 -
m
OP-28 VCF-VCA Board Assembly (149-028)
05 052-135A
Printed Circuit Board No.
135A
020-052
IC
CA1458G
020-015
IC
CA3080
Selected VCA
020-010
IC
TA7504M
020-027
IC
TA7136P
020-021
IC
ITS1276
017-013
Transistor
2SC945 (Q)
017-047
Transistor
2SC945 (Q)
Selected VCF
017-003
Transistor
2SC1000(GR)
017-048
Transistor
2SC1000(GR)
Selected hfe
017-012
Transistor
2SA733 (Q)
017-014
FET
2SK30A (Y)
017-018
PUT
N13T1
018-014
Diode
1S2473
018-027
Diode
1N60
022-077
Output Transformer
ST-31
028-002
Trimmer Potentiometer
1KS2 (B)
EVL-R4XA0013B
028-004
Trimmer Potentiometer
10Kn (B)
EVL-R4XA0014B
028-007
Trimmer Potentiometer
100Kfi (B)
EVL-R4XA0015B
044-025
Resistor
ioon
1/4W
±5%
044-027
Resistor
ison
1/4W
±5%
044-035
Resistor
680ft
1/4W
±5%
044-037
Resistor
n<n
1/4W
±5%
044-038
Resistor
1.5KH
'1/4W
±5%
044-039
Resistor
1.8KH
1/4W
±5%
044-040
Resistor
2.2Kn
1/4W
±5%
044-042
Resistor
3.3«n
1/4W
±5%
044-044
Resistor
4.7Kn
1/4W
±5%
044-045
Resistor
5.6KI2
1/4W
±5%
044-046
Resistor
6.8Kn
1/4W
±5%
044-048
Resistor
10Kft
1/4W
±5%
044-050
Resistor
15Kn
1/4W
±5%
044-052
Resistor
22Kn
1/4W
±5%
044-053
Resistor
27KJ2
1/4W
±5%
044-054
Resistor
33KO
1/4W
±5%
044-056
Resistor
47Kn
1/4W
±5%
044-057
Resistor
56Kft
1/4W
±5%
044-059
Resistor
82Kf2
1/4W
±5%
044-060
Resistor
lOOKft
1/4W
±5%
044-062
Resistor
150KJ2
1/4W
±5%
044-064
Resistor
220KJ2
1/4W
+ 5%
044-065
Resistor
270KI2
1/4W
±5%
044-068
Resistor
470KJ3
1/4W
±5%
044-072
Resistor
1M£2
1/4W
±5%
044-166
Resistor
2.2Mfl
1/2W
± 10%
037-002
Capacitor
15pF
50V
±10%
Ceramic
037-005
Capacitor
47pF
50V
±10%
Ceramic
037-007
Capacitor
250pF
50V
±10%
Mylar
035-001
Capacitor
0.001MF
50V
+ 10%
Mylar
035-016
Capacitor
0.01/nF
50V
±10%
Mylar
035-018
Capacitor
0.01 Sfif
50V
±10%
Mylar
035-026
Capacitor
0.068/liF
50V
±10%
Mylar
035-028
Capacitor
0.1/iF
50V
±10%
Mylar
32-
032-099
Capacitor
032-107
Capacitor
032-071
Capacitor
032-033
Capacitor
032-036
Capacitor
032-037
Capacitor
w
35V
±10%
Tantalum
3.3*iF
25V
±10%
Tantalum
IjzF
50V
Electrolytic
10mF
16V
Electrolytic
47,uF
16V
Electrolytic
10/nF
16V
Non Polarized
OP-29 Ring Board Assembly (149-029)
052-136A
Printed Circuit Board No.
136A
020-026
IC
LM1496
020-010
IC
TA7504M
020-027
IC
TA7136P
017-013
Transistor
2SC945-
(Q)
017-014
FET
2SK30A
(GR)
018-014
Diode
1S2473
028-007
Trimmer Potentiometer
100Kft
(B)
EVL-R4XA0015B
044-030
Resistor
27 0f2
1/4W
±5%
044-037
Resistor
i«n
1/4W
±5%
044-040
Resistor
2.2Kft
1/4W
±5%
044-042
Resistor
3.3K12
1/4W
±5%
044-043
Resistor
3.9Kfi
1/4W
±5%
044-045
Resistor
5.6Kft
1/4W
±5%
044-046
Resistor
6.8K12
1/4W
±5%
044-048
Resistor
ioxn
1/4W
±5%
044-049
Resistor
15Kft
1/4W
±5%
044-052
Resistor
22Kft
1/4W
±5%
044-054
Resistor
33Kft
1/4W
±5%
044-056
Resistor
47Kft
1/4W
±5%
044057
Resistor
56Kft
1/4W
±5%
044059
Resistor
82«n
1/4W
±5%
044-060
Resistor
100Kft
1/4W
±5%
044-062
Resistor
150Kn
1/4W
±5%
044-072
Resistor
1MS2
1/4W
±5%
044737
Resistor
1KJ2
1/4W
±2%
044-599
Resistor
ioMn
1/2W
±10%
037-005
Capacitor
47pF
50V
±10%
Ceramic
037-006
Capacitor
100pF
50V
±10%
Ceramic
035-016
Capacitor
0.01mF
50V
±10%
Mylar
035-028
Capacitor
0.1/liF
50V
±10%
Mylar
032-099
Capacitor
1MF
35V
±10%
Tantalum
PS-22 Power Supply Board Assembly (146-022) 100V-120V
PS-24 Power Supply Board Assembly (146-024) 220V-250V
052-1 33B
048-001
020-031
017-010
018-028
018-029
018-022
Printed Circuit Board No. 133B
Heatsink No.1
IC 723CN
Transistor 2SD234 (O)
Diode ESA-B01-03C
Diode ESA-B01-03N
Diode 1N4003
-33
1976-10-30 SYSTEM 100-102
028-002
Trimmer Potentiometer
1Kft(B)
EVL-R4XA0013B
044-008
Resistor
3.9ft
1/4W
±5%
044-037
Resistor
ixn
1/4W
±5%
044-042
Resistor
3.3KI2
1/4W
±5%
037-008
Capacitor
470pF
50V
± 10%
Ceramic
032-033
Capacitor
10/iF
16V
± 10%
Electrolytic
032-068
Capacitor
470fiF
35V
Electrolytic
010-038
Wafer Terminal
A-2461-8C
PS-24 Only
012-003
Fuse Holder
TF-758
008-024
Fuse (Midget)
0.5A
SGA 0.500
076-069
Label No. 69
Control Panel Assembly
010-010
Housing Receptacle
A-2 139-8
042-015
Pin Terminal
2578T
044-009
Resistor
4.7ft
1/4W
±5%
044-031
Resistor
330ft
1/4W
±5%
044-037
Resistor
• 1Kft
1/4W
±5%
044-043
Resistor
3.9KH
1/4W
±5%
044-048
Resistor
10Kn
1/4W
±5%
044-050
Resistor
i5Kn
1/4W
±5%
044-060
Resistor
100KH
1/4W
±5%
-34-
i—" w ivy \^\j vjioi i_ivi 1WW~1W^
1976-10-JO t>YSTEM100-102
*■ , • '■-'•, - '";
H
Knob No. 3
(016-003)
Knob Trim No. 1
(063-061)
Knob TK-1 113
(016-026)
Knob TK-1 114
(016-021)
mm
Label No. 92
(076-092)
Bushing No. 20
(068-020)
V ' :
.••)■,/
5
I
■ ".'.J 1 .
Side Board (Left)
No. 8 (083-008)
Side Board (Right)
No. 7 (083-007)
Holder
No. H2 (064H002)
Chassis
No. 106(061-106)
Holder
No. H2 (064H002)
W0,
■■'■■ ('':,:■.■••
■•■ v.y. k
-36-
-35-
1976-10-30 SYSTEM 100-102
.'. I
DO O
Q
O
O
Q
o
• Q
®
©□i©
e
e
*7
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«l B3
oo
oo
o ©
Cover No. 67
(065-067)
Cover No. 66
' (065-066)
-37-
i.o««j - iw-ovj OIOiaVII\A^-|<JA
; ->' ; "v
'■')■ ,v : •
m
V !r'. ;
"i -,'■■
' < ■ :■ ■
'■•n ','" .;'
.v ■;
mm
Potentiometer 1 KB
EVR-20AS15B1 3 (029-002)
(RV24YN15SBIK
Potentiometer 50KB
V24L5N15KC-B50Kfi (030-054)
(EVC B0AK15B54)
Potentiometer 100KB
V24L5N20KC-B100Kft (020-055)
(EVC B0AK20B15)
Rotary Switch
ESR-E124K20Z (001-055)
Chassis
No. 104(061-104)
Potentiometer 100KA x 2
~EVB-F0A A00A15 (029-168)
-38-
MMU-wdWJUkxJ-ra
« i1
..,,^¥'i
Washer
No. 31 (121-031)
Rubber Foot
G-7 (11 1-023)
Cord Bushing (strain relief)
R-5 (047-019)
Terminal Strip
2L-4P (042-004)
Long Nut
No. 1 (120-001)
RING Board Assembly
OP-29 (149-029)
VCO Board Assembly
VCO-5 (152-005)
Pig-tail Fuse
1.0A (008-032)
1.0A (008-014)
(For UL)
Label
No. 18 (076-018)
No. 60 (076-060)
VCF-VCA Board Assembly
OP-28 (149-028)
■-(100V-120V)
• - (220V-250V)
Power Transformer
No. 86C (022-086C) - - - ( 1 00V-1 20V)
No. 86D (022-086D) - - - (220V-250V)
Power Supply Board Assembly
PS- 22 ( 1 46-022) - - - ( 1 00 V- 1 20V)
PS-24 (146-024) - - - (220V-250V)
Clip
SCF-L40 (047-021)
Clip
SCF-L40 (047-021)
Chassis
/No. 105(061-105)
Caution Mark
No. 9A (075-009A)
Name Plate
No. 37 (075-037) - - - ( 1 00V-1 20V)
No. 38 (075-038) - - - (220V-250V)
■39-