Roland G-70 - Circuit Diagram (Audio 2;4)

Feb.2005
82
CIRCUIT DIAGRAM (AUDIO 2/4)
METRO
XMUTE XMUTE
XRES5V BUZZER
D
A
AA
A
A
A
-12V +12V
A A
A A
A
D
A
F
F
A
D
D
5VD
XMUTE
METRO
XRES5V
METRONOME OUTPUT
METRONOME LEVEL
BUZZER
FROM MAIN BOARD
(CN10)
21dB
84
+ -
IC11C M5218AFP
+ -
IC11C M5218AFP
2 3
1
+ -
IC11A
M5218AFP
+ -
IC11A
M5218AFP
R122 100k R122 100k
1
1
2
2
3
3
4
4
CN6 B04B-PH-K-S CN6 B04B-PH-K-S
2 1
C120 1u/50 C120 1u/50
R123 3k3 R123 3k3
R125 10k R125 10k
1
2 3
Q11 2SC3326A Q11 2SC3326A
1
2 3
Q10 2SC3326A Q10 2SC3326A
R129 100k R129 100k
R130 3k3 R130 3k3
L19 EXCML20A390U L19 EXCML20A390U
R128 47(1/2W)R128 47(1/2W)
R131 470 R131 470
C113 1n C113 1n C118 1n C118 1n
1 2
SP1 PK_21N30P SP1 PK_21N30P
R121 47(1/2W)R121 47(1/2W)
TP
TP7
TP
TP7
L21 EXCML20A390U L21 EXCML20A390U
R120 47(1/2W)R120 47(1/2W)
C116 0.1 C116 0.1
R127 47(1/2W)R127 47(1/2W)
6 5
7
+ -
IC11B
M5218AFP
+ -
IC11B
M5218AFP
12
3
DA7 DA204K DA7 DA204K
2
1 3
Q12 DTC114EK Q12 DTC114EK
R124 100R124 100
R170 NIU R170 NIU
C123 0.1 C123 0.1
C117 220p C117 220p
L20 EXCML20A390U L20 EXCML20A390U
C121 0.1 C121 0.1
R118 10k R118 10k
R119 100k R119 100k R126 100k R126 100k
21
C114 10u/16C114 10u/16
1
2
3
VR1A EVU-E2AH20B53
5kVR1A
EVU-E2AH20B53
5k
10
20
VR1B 5k VR1B 5k
3 2 1
JK9 HLJ052001010 JK9 HLJ052001010
C119 0.1C119 0.1
2 1
C122 33u/16 C122 33u/16
2 1
C124 33u/16 C124 33u/16
C112 68p C112 68p C115 68p C115 68p