Yamaha PSR-S550B, Руководство по обслуживанию

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8
PSR-S550/PSR-S550B
■
BLOCK DIA
GRAM
（ブロックダイアグラム）
28CA1-2001035400
PNC
ENC
PSW PNL
PNR
DM
61L
JACK 2/2
CN403-14P
CN501-14P
SUSTAIN
TO DEVICE TO HOST CONTRAST
JK401 CN401 CN402
VR401
USB
LCD
BACKLIGHT
LCD
UNIT
SW & LED
Matrix
LED
DRIVER
TR101-115
CPU
IC101(64P)
SW & LED
Matrix
SW & LED
Matrix
ROTARY
ENCODER
PA-301
AC ADAPTER
AC IN
TW-L
3cm
TW-R
3cm
WF-R
12cm
8 Ω
WF-L
12cm
8 Ω
EC301
JK451
+16V
+5V
Regulator
+5A
6
14
11,13
1
1
2
1 3
8,9
+5D_2
+5LD
+5D
+5D
VR320
+5LD
+5A
+5A
RD/WRN,/WE0,/WE1/RASL,
/CASL,CKIO,CKE
PNL_IC
D[0-15]
AD[0-25]
PITCH_BEND
/ENC-A,ENC-B
/DAC-IC
SYSCLK(LCDC)
+ 3.3D
+1.2V
+3.3V
Regulator
+1.2V
Regulator
IC14-16P
DAC
24bit
ROM
256Mbit(*1)
Wave
IC13-14P
Level
Converter
IC17-44P
Key Scan CPU
MKS
CPU
SWX2
DC/DC
Converter
IC4-64P
LCDC
ROM
128MBit(*1)
Program
FLASH ROM
16MBit(*2)
Data
SDRAM
128MBit(*3)
IC13,IC24-14P
Level
Converter
IC7-316P
IC1-3P
IC6-3P
IC19-8P
IC9-56P IC10-48P IC8-54P
Keyboard 61Key 16N
with touch response
BUS Clk 67.7376MHz
Int. Clk 135.4752MHz
Ext. Clk 33.8688MHz
5MHz
Ceramic
IC5-5P
Reset
IC18-5P
USB
Bus Power
Controller
48MHz
Crystal OSC
16.9344MHz
Crystal OSC
IC16-8P
LPF
+3.3D
+3.3D
+3.3D
PNL_IC
+29V
VBUS
FUNCTION D+,D-
FUNC_DP,DM
HOST_DP,DM
OVER_CUR_N
POWER_ENB
PK2
PD6
SDO0
WCLK
BCLK
SYSCLK
PK0,PK1
*B
*C
AN3
PD7
6
5
*A 39
RxD0
PD3
PED
AL
VEE1
/LCD_OFF
/LCD_IC /CS4 /WE0,/RD D[0-7] A[0-15]
/CS0
/CS5
/CS3
D[0-15]
D[0-15]
A[1-20]
A[1-14]
/DT
A
-WP
/WE1,/RD /H-RES
/PRG-WP D[0-15] A[1-23] /WE1,/RD
/H-RES
SYSCLK +3.3D
43
14
+3.3D
37
+3.3D
+5D
1,3,9,14
27,43,49
FPFRAME
FPLINE
FPSHIFT
MOD
FPD
A
T[0-3]
VB
US
VB
US
to De
vice D+, D-
to Host D+, D-
/W
AIT
B[7-11] B[1-7]
N[11-16] N[21-26]
RD2
CS4N CS0N CS5N CS3N
A[0-25] D[0-15]
PG2 PG7 RDN
WE1N WE0N
PK7
TxD0
RESN
XTAL
EXTAL
VBUS
VEE2
+5V,500mA
+20 - 26V
HOST D+,D-
IC11-56P
+1.2D
/H-RES
/H-RES
UCLK
X1
/SCK0
TIO
/RESET
X2
MKS_TX
MKS_SCLK
MKS_REQ
/MKS_IC
/MRD
RxD1 SCK1 TxD1 EICN
/MWR
/MCS0
MA[1-25]
MD[0-15]
+5A
+5D
IC101-5P
IC201-14P
IC102-3P
A Curve
5k Ω
+5V DC/DC
Converter
Power AMP
12W x 2
LA4625
STANDBY/ON
LCD DISPLAY
320 X 240
STN
CN601-14P CN701-7P CN702-3P
CN330-4P
CN452-4P
JK452
CN301-3P
CN103-7P
CN101-21P
CN202-21P
CN104-27P CN901-27P
CN455-2P
CN453-4P
CN454-2P
CN102-14P CN301-14P
CN102-2P
CN204-5P
CN310-5P
CN103-3P
CN320-3P
CN451-10P
CN101-10P
7
+5LD
8MHz
+5LD
PHONES/
OUTPUT
DCIN 16V
MASTER VOLUME
PITCH
BEND
+ -
JACK
AM
PB MVR
1/2
CN802-7P CN801-12P CN803-5P
CN5-7P
CN4-12P CN3-12P
61H
CN1-12P CN2-5P
+5D
14
14
8
+3.3D
43
+5D
17,38
+5D
4
+5D_2
*A: 7,12,22,25
32,40,48,55
*B: A20,B19,B20,C18,D8,D10
D17,D18,E8,E10,E11,E13
H5,H16,H19,H20,N5,N16
T8,T10,T11,T13,U4,U17
V3,V18,W2,W19Y1,Y20
*C: E5,E6,E15
E16,F5,F16
K5,K16,L5
L16,R5,R16
T5,T6,T15,16