Yamaha LMY4-MLF Service Manual page 22

X W V U
LMY4-MLF CIRCUIT DIAGRAM 2/5 (ML4, HIC-HA)
Q Q
1
3 7 6 3 1 5 1 5 0
ML4
2
3
4
5
6
7
8
T E
L 1 3 9 4 2 2 9 6 5 1 3
9
10
11
12
13
14
15
w w w
16
17
Note : See parts list for details of circuit board component parts.
T S R Q P
3/5: H16
4/5: U13
4/5: U14
3/5: H16
4/5: U12
4/5: U14
GAIN Setting table (GAIN 設定表 )
Rated input [dB] HA1 PAD
定格入力 GAIN SEL* GAIN GC* GAIN
-68 38 HI 0 HI 30
-62 38 HI 0 HI 30
-56 38 HI 0 HI 24
-50 38 HI 0 HI 18
-44 38 HI 0 HI 12
-38 38 HI 0 HI 6
x a o
-32 38 HI 0 HI 0
-26 14 LOW 0 HI 18
-20 14 LOW 0 HI 12
. i
-14 14 LOW 0 HI 6
-8 14 LOW 0 HI 0
-2 14 LOW -18 LOW 12
4 14 LOW -18 LOW 6
10 14 LOW -18 LOW 0
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HIC-HA
MULTIPLEXER
4/5: L8
Q Q
3 7
HIC-HA
MULTIPLEXER
4/5: L7
HA2 DSP
HA GAIN
GAIN*_X GAIN*_Y GAIN*_Z "ON" CHANNEL GAIN
HI LOW HI 1X,0Y,1Z 6 74
HI LOW HI 1X,0Y,1Z 0 68
LOW HI HI 0X,1Y,1Z 0 62
LOW LOW HI 0X,0Y,1Z 0 56
HI LOW LOW 1X,0Y,0Z 0 50
LOW HI LOW 0X,1Y,0Z 0 44
u 1 6 3
y
LOW LOW LOW 0X,0Y,0Z 0 38
LOW LOW HI 0X,0Y,1Z 0 32
HI LOW LOW 1X,0Y,0Z 0 26
LOW HI LOW 0X,1Y,0Z 0 20
LOW LOW LOW 0X,0Y,0Z 0 14
HI LOW LOW 1X,0Y,0Z 0 8
LOW HI LOW 0X,1Y,0Z 0 2
LOW LOW LOW 0X,0Y,0Z 0 -4
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J I H G F
2 4
8 9 9
4/5: V6
4/5: V6
4/5: V6
6 3 1 5 1 5 0 8 9
OP AMP
4/5: V7
4/5: V7
4/5: V8
m
: Mylar Capacitor (マイラーコンデンサー)
c o
: Metal Film Resistor (金属被膜抵抗)
: Low Leak Capacitor (ローリークコンデンサー)
.
: Electrolytic Capacitor (OSコンデンサー)
: Flame Proof C. Resistor (不燃化カーボン抵抗)
: Mica Capacitor (マイカコンデンサー)
LMY4-MLF CIRCUIT DIAGRAM 2/5 (ML4, HIC-HA)
E D C B
LMY4-MLF
2
8 9 9
3/5: V10
2 4 9 8 2 9 9
3/5: V12
** : not installed
28CC1-8829943-2
3
A