Roland KC-350 - Page 23

27
Aug.2005 KC-550 KC-350
26
KC-550 CIRCUIT DIAGRAM (1/4) fig.kc550sch1
XLR
CH1 INPUT
CH1 INPUT
CH1 INPUT
L(MONO)
R
CH2 INPUT CH2 INPUT L(MONO)
R
CH3 INPUT CH3 INPUT L(MONO)
R
CH4 INPUT CH4 INPUT L(MONO)
R
CH4 L VOLUME
CH2 R VOLUME
CH4 R VOLUME
CH2 L VOLUME
CH3 L VOLUME
CH1 R VOLUME
CH3 R VOLUME CH1 L VOLUME
28.2dB
1kHz sine wave -51.0dBu / 2.2mV
JACK BOARD(INPUT)
PRE BOARD
23.3dB
-35.5dBu / 13.0mV
PHONE PHONE+SP PHONE+SP+LINE OUT
OUTPUT SELECT
ROTARY SW
BOARD
-7.0dBu / 345mV
PHONES VOL R
PHONES VOL L
PHONES
+15.0dBu / 4.35V
@100ohms
+21.0dBu / 8.70V
CH2_R
CH3_R
CH4_R
CH4L
CH2R CH3L
CH4R
CH1L
CH2L
CH1R
CH1_H
CH1_C
CH1_L CH2_L
CH3_L
CH4_L CH3R
CH1_R
L-OUT Lsel L-OUT Rsel MAIN Rsel MAIN Lsel
CH1-RIN
CH1-ROUT
CH1-LIN CH1-RIN CH1-LOUT CH1-ROUT
PHO-L
PHO-R
MAIN L
MAIN R
LOUT-L
LOUT-R
CH1-XLR
CH1-XLR
CH1-LOUT
CH1-LIN
CH1-HOT CH1-CLD
CH1-HOT CH1-CLD
MAIN Lsel
MAIN Rsel
L-OUT Lsel
L-OUT Rsel
PHO-L
PHO-R
MAIN L
MAIN R
LOUT-L
LOUT-R
AUX IN L AUX IN R
MUTE TR MUTE TR
LOUT-L
LOUT-R
MAIN R MAIN L MAIN R
A
A
A
A
A
A
A
A
A
A
A
A
A
A A A A A A A A
A
A
A A
A
A
A
A A
A
A A
A
A
A
A A A
A
A
A
A
A
+
15
+
15
-15
-15
+
15
A
-15
+
15
-15
+
15
-15
+
15
-15
A
+
15
A
+
15
A
+
15
+
15
-15
-15
+
15
-15
-15 -15
-15
+
15
A
A
A
+
15
-15
A A
-15
-15 +
15
+
15
A A
A A
-15
+
15
A
A
A
AA A
A
A
A
A
AA
A A
-15-15
A
A A
+
15
+
15
-15 +
15
A
-15 +
15
A
A
+
15
-15
A
+
15
-15
A
+
15
-15
-15 +
15
A
-15 +
15
A
R76 100
R81 22k
R82 100
R86 22k
C43 C-220p
C62 C-0.1
R95 100k R94 100
C55 C-0.1
R101 100k R99 100
C71 C-0.1 C65 C-0.1
R103 100 R109 100
C80 C-0.1 C75 C-0.1
R113 100 R118 100
C89 C-0.1 C84 C-0.1
R122 100 R125 100k
C85 C-220p
R128 100
R96 6.8k
R98 2.2M
C79 E-10/16
R111 10k
C57 C-5p
R121
6.8k
C96 C-5p
R119 10k
C81 C-220p
R69 2.2M
C41 E-10/16
C97
E-47/16
R135 6.8k
R123 10k
C44 E-10/16
R80 3.9k
C82 C-5p
C93
E-47/16
R150 8.2k
C52 E-47/16
R139 8.2k
C46 C-5p
C38 E-47/16 C77 E-47/16
R149 47k
C69 E-47/16
R104
6.8k
C86 E-47/16
R91 10k R106 10k
R146 8.2k
D11 1SS133
R107 2.2M
R112 6.8k
C83 E-10/16
R68 10k R77 10k R102 10k
R143 8.2k
C53 E-47/16
C60 E-47/16
R108 10k
R138 2.2M
C98
E-47/16
R97 10k R114 10k
Q18
2SK30ATM-GR
C61 E-47/16
C73 E-10/16
R147 2.2M
C94 E-47/16
R126 10k
C54
E-10/16
C64
E-10/16
C67 C-5p
R100 10k
R116 2.2M
C91 C-5p
R127 10k
R151 47k
C76 C-220p
C39
E-47/16
C68 E-47/16
C78 E-47/16 C87 E-47/16
R137 8.2k
Q21
2SK30ATM-GR
R88 2.2M
C36 C-5p
C70
E-10/16
R124 2.2M
C74 C-5p
C88 E-10/16
R93 10k
R148 8.2k
R145
6.8k
R73 10k R87 10k
Q20
2SK30ATM-GR
R105 100k
C58
E-10/16
R117 10k
R140 47k
Q19
2SK30ATM-GR
R129 100k
C90 C-220p
C48 C-220p
R78 22k
JK1
NC3FAH2
D14 1SS133
D17 NIU
D18 NIU
D19 NIU D21 NIU
D22 NIU
D23 NIU
D29 NIU
D30
NIU
D31 NIU
CN1
B12B-PH-K
1 2 3 4 5 6 7 8 9
10 11 12
VR1A RK14K122 100kB
VR1B RK14K122 100kB VR2A RK14K122 100kB VR2B RK14K122 100kB VR3A RK14K122 100kB VR3B RK14K122 100kB
VR4A RK14K122 100kB
11
12
13
VR4B RK14K122 100kB
C50 C-0.1
R66 3.9k
R83
3.9k
R18 3.9k
R346 330 R211 330
C239 E-10/16
R301 18k
R300 3.3k
C241 C-100p
C242 E-10/16
C243 C-47p
+ -
IC2A
M5218AL
2 3
1
+ -
IC2B
M5218AL
6 5
7
+ -
IC3A
M5218AL
2 3
1
+ -
IC3B
M5218AL
6 5
7
+ -
IC4A
M5218AL
2 3
1
+ -
IC4B
M5218AL
6 5
7
+ -
IC5A
M5218AL
2 3
1
+ -
IC5B
M5218AL
6 5
7
+ -
IC1B UPC4570HA
7 6
8
C284 C-0.1
JK2 YKB21-5074 JK9 YKB21-5012
C47 C-0.1
JK8 YKB21-5012 JK4 YKB21-5012 JK5 YKB21-5012 JK7 YKB21-5012 JK6 YKB21-5012
R120 100k
C66 C-220p
R115 100k R110 100k
C56 C-220p C72 C-220p C63 C-220p
C42
C-220p
JK3 YKB21-5074
R212 2.7k
D9 1SS133
C35
E-10/16
R71 3.3k
R64 3.3k
C34 C-100p R65 12k
+ -
IC15A UPC4570HA
3 4
2
R144 47k
R210 2.7k
C240 C-47p R297 3.3k
+ -
IC1A UPC4570HA
3 4
2
C238 C-100p
R299 22k
C59
C-0.1
R298 18k
D12 1SS133
D10
1SS133
D13 1SS133
C51 C-0.1
D20 NIU
D15 1SS133
D28
NIU
R302 22k
D8 1SS133
C198
C-100p
R67 12k
D16 NIU
C283 C-0.1
WP21
W1
1 2 3 4 5 6 7 8 9 10 11 12
D27 1SS133
D26 1SS133 R133 1M
R134 1M
R136 100
R130 47k
R141 100
D24 1SS133
D25 1SS133 R132 1M
R131 1M
C95
F-0.01
C92 F-0.01
WP11
1 2 3 4
WP10
W3
1 2 3 4
R74 10k
R72 39k
C40 JW
C37 C-22p R70
10k R75 10k R79 10k R92 10k R84 10k R90 10k
R89 10k
R85 39k C45 C-22p
C49 JW
+
-
IC6A M5218AL
2 3
1
+ -
IC6B M5218AL
6 5
7
C285
C-0.1
C287
C-0.1
C286 C-0.01
RSW1A SRBM13N-F15
R142 47k
C184 E-10/16
R282 56k
R281 2.2k
R286 22k
C180 E-10/16
C181 NIU
R283 10k
C183 E-10/16
C182 C-47p
JK18 YKB21-5010
R285
NIU
R284 CB1/2W 82
R287 NIU
Q31
NIU
C185
C-330P
C188 E-10/16 C192 E-10/16
R289 2.2k
R294 22k
R290 56k C189 NIU
C191 E-10/16
R291 10k C190 C-47p
R292 CB1/2W 82
C193
C-330P
R295 NIU
Q32
NIU
R293 NIU
VR5A RK14K12B 10kB
C278 NIU C197 NIU
+ -
IC14A NJM4556AL
2 3
1
+ -
IC14B NJM4556AL
6 5
7
+ -
IC13A M5218AL
2 3
1
+ -
IC13B M5218AL
6 5
7
C186
C-0.1
C187 NIU
C194
NIU
C230 C-0.1
C208 C-0.1
C280 C-0.1
C229 E-470/35
+ -
IC4C M5218AL
84
C274 C-0.1
C231 E-470/35
C206 C-0.1
C209 C-0.1
C210 C-0.1
C233 E-220/35 C232 E-220/35
C196 C-0.1
C228 C-0.1
C217 C-0.1
C200 C-0.1
C223 C-0.1
+ -
IC15C UPC4570HA
1
5 9
C204 C-0.1
+ -
IC1C UPC4570HA
1
5 9
+ -
IC3C M5218AL
84
C203 C-0.1
C276 C-0.1
C302 E-220/35 C301 E-220/35
C202 C-0.1
+ -
IC14C NJM4556AL
84
C201 C-0.1 C207 C-0.1
+ -
IC13C M5218AL
84
+ -
IC6C M5218AL
84
+
-
IC5C M5218AL
84
+ -
IC2C M5218AL
84
+ -
IC15B
UPC4570HA
7 6
8
+21.0dBu / 8.70V
-35.5dBu / 13.0mV
-35.5dBu / 13.0mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
-7.0dBu / 345mV
1kHz sine wave -51.5dBu / 2.1mV 1kHz sine wave -30.0dBu / 24.5mV
1kHz sine wave -30.0dBu / 24.5mV 1kHz sine wave -30.5dBu / 23.1mV