Block Diagram - Yamaha PSR-S750 Service Manual

H G
■ PSR-S750 BLOCK DIAGRAM
PNL
PNC
SW & LED
PB MATRIX
MOD
CN3
(7P)
CN300 CN1
(3P) (29P)
VR300
CN3
(29P)
PNM
PITCH BEND
PB
SW & LED
MATRIX
POWER SWITCH (SOFT SW)
+5D
CN301
(4P)
MASTER internal oscillator
VOL 10MHz
VOLUME AIN*
E-PNS3a
VR2
VR301
IC1 (80P) AIN*
LCD
AIN*
AIN*
CONTRAST
PB AIN*
AIN*
MODULATION VR1 MOD AIN*
MOD
V-CONT
CN303
DM
IC11,12 (54P)
X1
System
X301
/LCD_RES
IC2 (376P)
SYSCLK2_768FS
IC8
(8P)
MCLK
X300
IC6
(388P)
[15:0]
RCLK
IC301 (54P)
TR500
IC308 (56P) IC302 (56P)
F E
61 KEYS 16M KEYBOARD
PNR
SW & LED SW & LED
MATRIX MATRIX
CN4 CN11
(16P) (14P)
CN6 CN8
(16P)
(14P)
PNS
CN4 CN7
(29P) (29P)
EMKS61A
SW & LED
MATRIX
SW1
ROTARY ENCODER
EC1
/SPSI
/PEDAL_IN1
/PEDAL_IN2
PEDAL 1
PEDAL 2
LED BACKLIGHT
CN2
(8P)
LCD
5.7 inch STN QVGA
CN1 (9P)
CN304 CN2
(9P)
(7P) (20P)
IC14 (64P)
IC22 (56P) IC21 (56P)
IC18,19
(20P)
IC15–17
(20P)
IC508 +5A
+5A
(5P)
+5NOFUSE
IC4 (5P)
IC1
(5P)
IC7
(5P)
MCLK
MCLK
SCLK
IC510
IC507 (8P)
(16P)
SDT0
MCLK
MCLK
BICK
IC509
IC504 (8P)
SMUTE (28P)
MCLK SLEEPN
MCLK
SCLK
IC506
LRCLK
(33P)
MUTEN
D
MK-H
MK-L
(A#3~C6)
(C1~A3)
CN2 CN3
CN4
(12P) (7P) (5P)
+5D
E-LKS 8.38MHz
X1
IC1 (64P)
CN1
(7P)
CN3
(3P)
USB TO HOST
TR1,2
CN308
USB TO DEVICE
CN307
IC312 (5P)
MIDI IN
JK300
MIDI OUT
JK301
TR302,303
CN500
(6P)
+16V
DV
+12A
CN502
(11P)
IC502
(16P)
IC500 (16P)
IC503 (14P)
/PSWI
PSWO
/MUTE
HP_IN
AUXIN_IN
CN501
IC512
(6P)
(4P)
CN504
(4P)
C B
PSR-S750/PSR-S950
AJACK
/SPSI
/PEDAL_IN1
FOOT PEDAL 1
PEDAL 1
/PEDAL_IN1
JK3
/PEDAL_IN2
PEDAL 1
/PEDAL_IN2
PEDAL 2 FOOT PEDAL 2
PEDAL 2
CN9
JK4
(8P)
IC6 (8P)
AUX IN
JK5
AUX_IN-IN
L/L+R
IC5 (8P)
JK7
TR9 OUTPUT
R
JK8
TR8
CN4
(6P)
+16V
DV
HP
HP_IN
+12A RY1
PHONES
JK200
IC7 (8P) RELAY
CN200
CN10
(5P) (5P)
CN2
(11P)
MUTE
CIRCUIT TR_MUTE
/MUTE
TR2,4,7
/PSWI
PSWO
IC1 (3P)
/MUTE
12A REGULATOR
HP_IN
16V TH1
AUXIN_IN
/SPSI ErP DC IN 16V
CIRCUIT
/PSWI
CN1 PA-300C
DV
(6P) PSWO
JK1
FT1, TR1
TWEETER
CN7
(6P)
WOOFER
NETWORK
CN6
(5P)
L ch R ch
CN8
(4P)
28CA1-2001092497-1
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■ PSR-S750 BLOCK DIAGRAM
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