Yamaha PSR-F50 Service Manual page 25

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PSR-F50 BLOCK DIAGRAM
Keyboard
61KEY (16N-S)
NON TOUCH RESPONSE
61L
CN1(13P)
CN202(13P)
+V
Voltage
monitor
BT_CHECK
AN0 63
Internal +1.8V
+3.3D
REGULATOR
IC101
IC104
RESET
SWLL
+5D
IC_ 59
+4.2V 54ms
Internal Clock : 33.8688MHz
Master Clock : 67.7376MHz
X101
16.9344MHz
72,
Crystal SMD-49
73
F Tolerance±50PPM
/CS
SCLK
SIO0-3
IC102
16Mbit
+3.3D Serial Flash
8
ROM
PROG/WAVE
PSR-F50
N M L K
SW200
61H
CN1(11P)
CN201(16P)
CN201(11P)
CN301(16P)
/PSW
+3.3L
TR301-303 DIGIT[0-2]
7seg_e0-2
Driver
+3.3D
20
IC301 TR304-311
PD1-8
KB1-8
Latch Driver
11
7seg_lat
+3.3D
34-37
SWIN0-3
+V
8
1,2 DACL ± 5,6 7
LPF
IC501
5,6 DACR ±
2,3 1
LPF
+5D
IC1
+3.3V
+3.3D
5 1 3
REGULATOR REGULATOR
PSWO /PSWI IC3
+3.3V
+3.3L
5 1
REGULATOR
/PSW
J I H G
SW MATRIX
( SW 21 )
PCS
( VOLUME ±
is included.)
PN
SW201-208,211-218,221-225
POWER AMP
L
2.5W X 2
6
IC151
7
R
TA8227AP
1 12
+V
+V
IC2
+5V
1
/PSWI
STANDBY
PSWO
SW
TR101,103,104
DM AM
F E D
7SEG
SPEAKERS
+
Lch
-
8cm
L JK151
2
PHONES
11
/OUTPUT
R
+B
+
Rch
- 8cm
TR102
Over
+
Current BATTERY
Protection
-
1.5V x 6
SIX 1.5V "AA"SIZE
LR6 or Ni-MH or
Equivalent batteries
12V
TH101
AC adaptor
PA-130A
JK101
28CA1-2001119319 2
C B A
1
PSR-F50
2
3
4
5
6
7
8
9
10
11
12
PSR-F50