Block And Level Diagram - Yamaha EMX512SC Service Manual

K J I
■ BLOCK & LEVEL DIAGRAM
JACK -1/3
CN402
HA Gain
MIC +35dB
Q001-004
LINE +35dB
IC002-006
IC001,007
2 IC008-012
6 1
3
7
CH INPUT
5 VR001-004
JK001,003,005,007
(CH1~4) LINE
2
MIC CN001
4 SW001
(3P)
3
CN002
1
(3P)
MIC/LINE +20~–4dBu
JK002,004,006,008
0~9dB
PUSH LINE
(–30dB)
Input: Reverse Phase
HA Gain
+35dB
IC101
3
5 1 6 7
CH INPUT 2 7
6
(CH5/6,7/8) JK101,104 IC102-2/2
IC106-2/2
CN101
(3P)
CN102
2
(3P)
4
3
IC102-1/2
1
IC106-1/2
JK102,105
2 2 1
4
3
1
JK103,106
HA Gain
+35dB
IC201
3
5 1 2 1
CH INPUT 2
7
6
(CH9/10,11/12)
IC202-1/2
JK201,202
IC206-1/2
CN201
(3P)
CN202
(3P)
IC202-2/2
IC206-2/2
6 7
JK203
DSP
A/D
ICM07
ON when power-on
SW301
LED(GREEN) LD301
+15V +15V
–15V –15V
JK405
CN402 CN302
(5P) (5P)
* All the level value in this diagram is measured with the LEVEL control set to maximum.
28CA1-2000000039
H G
FCL
MIX
Light-up Level –40dBu
Lighting Duration 2.3-0.7sec (–40-0dBu)
Lights-out Duration 0.07sec
CN302 SW302
LED(YELLOW)
LD001-004
LD302
IC005
LED(RED)
IC001
IC003 IC006
IC002
Position: 0dB
IC004
DRIVE
3 1
5 7
Reverse Normal Normal Phase
Phase Phase
CN001
IC301-1/2
(3P) VR006,012,
VR005,011,
CN002 018,024
017,023 2
VR003 VR002 VR001
EFFECT
(3P)
VR009 VR008 VR007
VR015 VR014 VR013
Reverse Phase
VR021 VR020 VR019
VR004,010,
IC301-2/2
EQ Variation width: +/–15dB
016,022
6
LD101,102
IC103-1/2
Reverse Phase
IC102-2/2
IC101 IC105-1/2
IC104-2/2
DRIVE IC302-1/2
3 1
2
Reverse Phase
CN101
VR103 VR102 VR101
(3P) VR109 VR108 VR107 IC302-2/2
VR106
CN102
6
VR112
(3P)
VR105
Reverse Phase
VR111
5 7
Normal Phase
Reverse Normal
IC102-1/2
IC103-2/2
Phase Phase
IC104-1/2
IC105-2/2
VR104
LD201,202 VR110
IC203-1/2
IC202-2/2
IC201
IC205-1/2
IC204-2/2
DRIVE
3 1
VR203 VR202 VR201
CN201
VR209 VR208 VR207
VR206
(3P)
VR212
CN202
(3P)
VR205
VR211
5 7
Normal Phase
Reverse Normal
IC202-1/2 IC203-2/2
Phase Phase
IC204-1/2 IC205-2/2
IC304-1/2
2
VR204
VR210 Reverse Phase
+15V +15V
IC302-1/2
–15V –15V
2
DIGITAL EFFECT +5V +5V
Reverse Phase
ICM04
IC302-2/2
6
DSP YMM757-VTZ
D/A VR303
(SWL01T)
Reverse Phase
CLOCK 16.9344MHz ICM08
RESET ICM03 ROM ICM10
VR302
CNM02(20P)
CN301(20P)
EC301
VR301
LEVEL
F E
MAIN
LD404-413
5-Point(+12/+6/0/–6/–12dB)
Light up when stand-by
0dB: +4dBu
LED (RED)
Variation Width +/–12dB
IC401
IC303-1/2 IC408-1/2 IC412
IC402
IC413
10 8
1 2 1 3
Normal Phase Normal
Q304 Phase
with LPF
VR416
7
MASTER
MAIN
IC303-2/2
1 6 7 5 7 5
Normal Phase Normal
IC403
IC408-2/2
Q305 Phase
IC404
with LPF
7
Position: +4dB
Q409-412
LIMITER1
LD401 CLIP_A
DRIVE
LED(RED)
LIMITER2
LD402 CLIP_B
MONITOR Meter
LD414-418
5-Point(+12/+6/0/–6/–12dB)
0dB: +4dBu
Variation Width +/–12dB
IC405 IC411-2/2
IC306-1/2 IC414
IC406
5 7 5
1 2 1
Normal Phase Normal Phase
Q306
with LPF
1
Position: 4dB
Reverse Phase
7 6
IC306-2/2
IC411-1/2
3
7 6 7
Normal Phase
Q307
with LPF
AC IN
J : 100V
U,V : 120V
H,B,W,K,O : 230V
A : 240V
■ BLOCK & LEVEL DIAGRAM
D C B
JACK -2/3
+12V
Meter
JK406
Output: Normal Phase
+V H (*) +V L
DRIVE
2
1
4
3
1
JK401
W104 W106
+V H (*) +V L
7 2
4
3
1
PA
JK402
+15V
IC101-1/2,
Q106,163,104
IC409-1/2 IC409-2/2
2 1 6 7 1
3 2
Q102
IC410-1/2
Normal Phase SW502
Reverse Phase
–15V
SW501
CLIP_A
LD403
YSP SW: ON(default)
+15V
LED(YELLOW)
IC101-2/2,
Q105,162,103
+12V
5 7
Q101
IC410-2/2
CLIP
–15V
–15V +15V _A
CLIP_B
(DSP) (LED)
CLIP
JACK
+5V +12V _B
CLIP_A
DRIVE
7
CN401(13P)
VR415
MASTER
JK403
MONITOR
Output: Normal Phase CLIP_A
CLIP_B
SW
+15V
POWER
+12V
1
–15V
+5V
W601 W602
JK404
CN410 CN411
D414,415
(1P) (1P) IC403
+15V
CN401
W303
R418,424
(1P)
GRAY
L304 L303
LINE RY401 F401
IC401,402
FILTER
J,H,B,W +15V
CN402
(1P)
– 15V
D401 Switching
J301 W304
BROWN
JK305
J302
OUT
U,V,A,K,O
-2/2
E301
GND GND
A
EMX512SC/EMX312SC
1
–V L –V H (*)
* EMX512SC
W107 W105
–V L –V H (*)
2
GND
E302
OUT
CN303(1P)
-1/2
W103 BLACK
Maximum
output power
EMX512SC[500W/4ohms]
+V +V (*)
L H
EMX312SC[300W/4ohms]
+15V
CN301(1P)
W102
VIOLET
2
3
–15V
–V
H
A
(*)
1
–V
L
+V L +V H (*)
+15V
CN302(1P)
W101
YELLOW
2
–15V
–V H
B
(*)
1
–V L
CLIP_B
+15V –15V
4
W305
CN101(14P)
CN415(14P)
CN407(1P)
THERMAL
PS
FAN
+15V –15V –15V
(PA OUT) FAN DRIVE
DC
CN404
PA +12V (2P)
IC406 IC407
PROTECT
+12V +5V +5V
R429,430
W402
IC404
+15V +15V
GND
D412,413
W401
416,417
5
–15V –15V
T401 IC405
GND
R453,454
CN405(1P)
+VH(*)
D406,407
CN409
–VH(*)
(1P)
D408,410
CN406(1P)
+VL
CN408(1P)
–VL
* EMX512SC
6
7
3
8