BOSSCO RDD-20 Operating and maintenance manual

SEP. 1986 RDD-20/10
BOSS PDD-2D/1D SERVICE NOTES
First Edition
SPECIFICATIONS
)Power Source
Current Draw
Input LEVEL/I mpedance
Output LEVEL/Impedance
Output Load Impedance
Delay Time
Frequency Response
Residual Noise
Dimensions
Weight
9VDC (BOSS AC Adapter PSA-100, 120, 220 or 240)
120mA @9V
—20dBm/1 Mf2, -10dBm/47Kn
-20dBm/2KO, -10dBm/2K£2
10K(T2or more
0.75ms to 400ms
Direct :10Hz to 60KHz (_dB)
Delay :20Hz to 15KHz (^dB)
—90dBm (IHF-A) or less LEVEL Switch 120dBm
218 (W) x44 (H) x169 (D) mm
8-9/1 6"w x1-3/4wHx6-1 1/16"d
900g/2 lbs
>KThis notes includes the contents of the RDD-10
First Edition and makes it obsolete.
JkCheck for the differnces between two models on page 4.
*RDD-IOOIf
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Top Panel
(2202027100) (2202031900)
RDD-10 RDD-20
LED
SLP-153B red
(15029190)
OPot. EVH-6PA332B54 50KB (13219342) ©Pot. EVH-6PA332B14 10KB (13219302)
Knob green (2247026000) Knob yellow (2247026100)
0Pot. EVH-6PA332CF5 250KC (13219365) ©Pot. EVH-6PA332A54 50KA (13219381)
Knob blue (2247026200) Knob orange (2247025900)
©Pot. EVH-6PA332B54 50KB (13219342) ©Pot. EVH-6PA332B54 50KB (13219342)
Knob blue (2247026200) Knob orange (2247025900)
Switch SUN-191 H
(13129355)
Button
(12470514) (2247064700)
RDD-10 RDD-20
Pin Jack
SQ3096
(13449618)
w/Switch
Jack AC Adapter *»
HEC-0470-01 -630
(13449711) Bottom/Rear Panel
(2281049000)
Jack
HLJ 0520-01-010
(13449126!
Switch SUN-19HS
(131 2935’’)
Button 1is-307G
(2247060500)
Pin Jack
SQ3097
(13449619)
Foot (square mat)
(2235012000)
Jack
HLJ-0520-01-1 10
(13449125)
Top Panel Removal Screws
3x6mm BH Fe Cl BC
(2 each)
Front Panel
(2221073800) (2221078000)
RDD-10 RDD-20
Switch SUN-192H
(13129356)
Button TK-307G Switch SRN-1019-
(2247060500) (13119813)
Knob green
(2247026000)
PHOTO RDD-10
PARTS LIST
CASING
2202027100 Top Cover (RDD-10)
2202031900 Top Cover (RDD-20)
2221073800 Front Panel<?/^£ (RDD-10)
2221078000 Front Panel U(RDD-20)
2281049000 Bottom/Rear Panel ^
2235012000 Foot (square mat)
KNOB, BUTTON
2247025900 Knob orange TONE/LEVEL (DELAY)
2247026000 Knob green RANGE/FINE (DELAY TIME)
2247026200 Knob blue RATE/DEPTH (MODULATION)
2247026100 Knob yellow LEVEL (FEEDBACK)
2247060500 Button TK-307G gray POWER/ EFFECT
12470514 Button (RDD-10) POLARITY/LEVEL
2247064700 Button (RDD-20) POLARITY/LEVEL
SWITCH
13129355 SUN-191H LEVEL /POLARITY
13129356 SUN-192H EFFECT
13129357 SUN-1 9HS POWER
13119813 SRN-1019 RANGE
POTENTIOMETER
13219302 EVH-6PA332B14 10KB FEEDBACK
13219381 EVH-6PA332A54 50KA TONE
13219342 EVH-6PA332B54 50KB DEPTH/FINE/DELAY LEVEL
13219365 EVH-6PA332CF5 250KC RATE
13299140 H0651 10KB trimmer
13299158 H0651 47KB trimmer
JACK
13449125 HLJ-0520-01-1 10 phone
13449126 HLJ-0520-01-010 phone
13449618 SQ3096 w/switch pin INPUT
13449619 SQ3097 pin OUTPUT
13449711 HEC-0470-01-630 AC adaper
PCB
74123510 MT BOARD (pcb 2292018700) (RDD-10)
7413551000 MT BOARD (pcb 2292018700) (RDD-20)
1C
15229811 RDD63H101P-G-SH (or MB63H101) C-M0S gate array
15179315 M5K4164 64K DRAM
15219143 UPC1571C compander NR
15169356 SN74LS628N VCO
15159128H0 HD14050BP buffer
151591 15H0 HD14066BP analog switch
15189136 M5218L Op amp
15189152 NJM5534D Op amp
151891 11J1 NJM311D comparator
15199130J0 NJM78L06A 3-terminal voltage regulator
15 119109F0 UA78L05AWC 3-terminal voltage regulator
TRANSISTOR
15129120 2SC2240-GR
15129108 2SC945P
15129136 2SC2878A
15119111 2SA970-GR
15119105 2SA733P
15139105 2SK68A FET
15139101 2SK30A-Y FET
DIODE
15019305 RD6.8JB2 zener
15019209T0 S5500G
15019125 1SS133
15019103 1S2473
15029190 SLP-153B red LED
RESISTOR
13919134 RKM14L492-103F R-2R ladder network
13910103 RNSA-09P103 10K x8resistor array
MISCELLANEOUS
2348017400 DC Cord 0.5m
13529105 DSS310-55D223S EMI-f ilter
mm
fiHI Roland Printed in Japan BD-2
1

RDD-20/10 SEP. 1986
MT BOARD
74123510 (pcb 2292018700) RDD-10
74135510 (pcb 2292018700) RDD-20
(
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2

SEP. 1986 RDD-20/10
J
JAIPC1571C
HD14066BP
MPC78L05
NJM5534D
NJM311D
HD14050BP
05,7,8,14,20 :2SA733P
Q6 :2SC945P
012,13 :2SC2878A
09-11,19 :2SK30AY
D1,3-13,16,19-28 :1SS 133
D14,15 :RD6.8JB2
D17 :S-5500G
D2,18 :SLP-153B (LED)
:RKM14L492-103F
:RNSA-09P103 (10K x8)
:Tantalum MT BOARD
RDD-20/10
CIRCUIT DIAGRAM
74123510 RDD-20
74135510 RDD-io
3

RDD-20/10 SEP. 1986
ADJUSTMENT (RDD-20/10) H8
Set the front panel switches and controls as follows :;Hr 77 ^>
$
1. COMPRESSOR 1. 3>7"U7t
1-1. Apply a50mVp-p, 1kHz, 4-0-4 cycle burst tone
signal to INPUT jack.
1-2. Connect ascope to TP- 1.
1-3. Adjust RT1 (THD) for astraight DC level.
1-1 INPUT i/ t;lKHz, 50mVp-p6D4-
0—4 ^s'— 7, h60
1-2 TP-llCt->o7 3-70^t-50
1-3 DC RT 1(THD )£fgj
2. EXPANDER 2.
2-1. Apply a50mVp-p, 1kHz, 4-0-4 cycle burst signal to
INPUT jack
2-2. Connect the scope to TP-2.
2-3. Adjust RT2 (THD) for astraight DC level.
2-1 •INPUTS +-j ^{C %lKHz, 5OmVp—pCQ 4—
0-4 *h(f 50
2-2 TP -2 ICd-'>a ^
2-3 DC RT2 (THD )£
issiiT -S o
%V'V \
3. CLOCK FREQUENCIES
3-1. Connect afrequency counter or the scope to TP-3.
3-2. Set FINE at xl.O and adjust RT4 (CLOCK LOW)
for 40 ±0.5kHz or 24.7-25.3ps.
3-3. Set FINE at xO.5 and adjust RT3 (CLOCK HIGH)
for 82.5 ±1.0kHz or 12.0-1 2.3/ts.
3.
3-1 TP-7
-5>o
3-2 FINE^-XI.OICLT, 40±0.5KHz
(24.7— 25.3/^s) 1C ^-S^ICRT4(CLOCK LOW)
;&113llE"T dE> o
3-3 FINE£ X0.5ICLT, 82.5±1.0KHz
(12.0— 12.3/^s)IC ££ -S JiiCRT 3( CLOCK HIGH)
'SrtSiSIlF &o
DIFFF.-R.E NCES BETWEEN Rnn-20AND RTt n-in
Rnn-2o>Rpn-i nyiiaai
*The t«o models are the same except for those parts listed ia
the table below.
*c-rt.
PARTS NAME RDD-20 RDD-10
Top Cover 2202031900 2202027100
Front Panel 2221078000 2221073800
Button
(POLARITY/LEVEL) 2247064700 12470514
MT Board 7413551000
(pcb 2292018700) 74123510
(pcb 2292018700)
*7413551000 is upword compatible with
74123510, that is, 7413551000 can
be used as areplacement for 74123510.
The reverse does not hold true.
*74 1355 1000 (± 74 12351 0<5D±&;i»r?
74123510^0 ftffl tLX&.
L&ls ft*
4