Roland KC-550 - Page 29

39
Aug.2005 KC-550 KC-350
38
KC-350 CIRCUIT DIAGRAM (3/4) fig.kc350sch3
JACK BOARD (OUTPUT)
"PS1 BOARD(LINK Sect.)"
inside area "NIU"
inside area "NIU"
PRE BOARD
MUTE TR
AUX IN R
MUTE TR
LOUT-R
AUX IN L
MUTE TR
MAIN L
MAIN R
MUTE TR MUTE TR MUTE TR MUTE TR
LOUT-L
SUB_OUT
AA AA A AA AA A
AA
A
AA
A
A
-15 -15
15
+
15
A
A
+
15
A
A A A
A
+
15
-15
+
15
-15 -15
-15A
A
+
15
A
A
A
-15
A
A
+
15
+
15
+
15
+
15
-15
+
15
-15
A
A
A
A
A
A
AA AA
AAA
AA
A
A AAA
-15 +
15
A
-15 +
15
A
-15 +
15
A
R179 1.5k R175 1.5k
JK10 YKB21-5012 JK11 YKB21-5012
C118 C-220P
R155 NIU R162 NIU R164 NIU
G
JK13 NIU
C115 NIU
C122
C-0.1
C119
C-0.1
C100 NIU
C114 NIU
R171 NIU
C105 NIU C108 NIU C113 NIU
C117 E-47/50 C120 E-47/50
C110 NIU C103 NIU
R177 22k
R161 NIU
C121 C-220P
C106 NIU
R154 NIU R173 NIU
R181 22k
R166 NIU
SSW1A NIU
SSW1B NIU
C107 NIU
C281 NIU C282 NIU
G
JK12 NIU
C259 C-0.1 C258 C-0.1
WP22
1 2 3 4 5 6 7
C288 C-0.1
Q23 NIU
R183 220
R159 NIU R152 NIU
D32 NIU
Q39 2SC2878A
D56 NIU
+ -
IC8A
NIU
2 3
1
R186 10k
R187 8.2k
R196 6.8k
R168 NIU
D41
1SS133
C116
C-0.1
D38 NIU
+ -
IC9A
M5218AL
2 3
1
R182 8.2k
R160 NIU
C111 NIU
D36 NIU
R189 10k
D33 NIU
D44 NIU
R180 6.8k
R169
NIU
R156 12k
Q22 NIU
R157 NIU
R172 NIU
CN3
B7B-PH-K
1 2 3 4 5 6 7
C109 C-100p
D34 NIU
R176 6.8k
+ -
IC7B
M5218AL
6 5
7
R165 NIU
D57 NIU
R167 12k
D58 NIU
CN2
B7B-PH-K
1 2 3 4 5 6 7
+ -
IC8B
NIU
6 5
7
D42 1SS133
D47 NIU
D40
1SS133
D37 NIU
C127 C-220p
C101 C-100p
Q25 NIU
R178 220 R174 220
Q26
2SC2878A
Q24 NIU
D43 1SS133
C123 C-220p
D39 NIU
D35 NIU
R170 NIU
D46 NIU
Q27 2SC2878A
D45
NIU
C99 C-0.1
+
-
IC9B M5218AL
6 5
7
C129 JW
R163 NIU R153 NIU
C102 NIU
D55 NIU
+ -
IC7A
M5218AL
2 3
1
R158
NIU
R192
22k
AB
JK14C
R194 22k
R191 100 R193 100
C134 E-10/16 C136 E-10/16
R188 100
C128 E-10/16
C131
C-0.1 C195 C-0.1
JK15 YKB21-5012
R190 22k
R356 100
C130 C-220P
C140 C-220P
JK14B YKC21-3503
C138 C-0.1
R357 22k
C135 C-220p C137 C-220p
JK14A YKC21-3503
C236 C-0.1
JK17 YKB21-5012 JK16 YKB21-5012
R184 100
C124 E-10/16
C126 C-0.1
C125 C-220P
R185 22k
C139 E-47/50
WP24
1 2 3 4 5 6 7
+ -
IC7C M5218AL
84
+ -
IC8C NIU
84
+ -
IC9C M5218AL
84
C212 NIU
C213 C-0.1
C205 C-0.1 C211 C-0.1
C218 NIU
C219 C-0.1
-5.5dBu / 410mV
W4
STEREO LINK IN
STEREO LINK OUT
-9.0dBu / 275mV
@47kohms
W2
-5.5dBu / 410mV
-9.0dBu / 275mV
SUBWOOFER OUT
+1.5dBu / 920mV
@47kohms
AUX IN R
-19.5dBu / 82.0mV
1kHz sine wave
AUX IN L
-19.5dBu / 82.0mV
1kHz sine wave
LINE OUT L(MONO)
-5.5dBu / 410mV
@47kohms
LINE OUT R
-5.5dBu / 410mV
@47kohms