Yamaha PF-1000 Service Manual page 111

A B
PF-1000 OVERALL CIRCUIT DIAGRAM 3/3 (DJK, A-JACK, MA60, FU60P, FU, PEDAL (SW), MV, HP, INLET, VSEL, NET1)
1
DJK
2
HOST SELECT
to DM CN5
3
AUX PEDAL
4
5
MV
MASTER VOLUME
6
28CC1-8824131
7
8
9
10
U, E, B, J models
11 INLET FU60P
1
*
*
1
*
J
28CC1-8824181
12
The U model is a polarized type.
*
13
N model
14
POWER SW
INLET
15
FU
28CC1-8824181
NOT INSTALLED
16
WARNING
Components having special characteristics are marked Z and must be
replaced with parts having specification equal to those originally installed.
Z
: Mylar Capacitor
: Ceramic Capacitor
17 PF-1000
A B
C D E
PHOTO COUPLER
not installed
not installed
not installed
LINE TRANSCEIVER
INVERTER
A-JACK
L / L+R
AUX IN
R
to DM-CN12
OP AMP
AUX OUT
L
LEVEL FIXED
R
POWER SW
MA60
1
*
Power Transformer
* 1 * 1
* 1
* 1
U E, B
* 1
28CB1-8811315 2
J: (GA60: XR748A00)
U E, B N
XR749A00 XR750A00
XR751A00
VSEL
28CB1-8814857 4
C D E
F G
IN
not installed
OUT MIDI
not installed
THRU
not installed
TO HOST
not installed
EQUALIZER
0.056
0.47
2.7K
22K
0.027 0.22
2.7K 18K
0.01
0.10
1.0K 22K
not
0.012
0.039
installed 1.8K 18K
2200P
0.047
15K 4.7K
1800P 0.027
0
22K
5600P
100P
22K
2.7K
OP AMP
EQUALIZER
0.056
0.47
2.7K 22K
0.027
0.22
2.7K
18K
0.01
0.10
1.0K
22K
0.012
0.039
1.8K 18K
2200P
0.047
15K 4.7K
1800P 0.027
0 22K
5600P
100P
22K 2.7K
to DM-CN8
REGULATOR +5V
REGULATOR +3.3V
POWER AMP
REGULATOR +12V
REGULATOR -12V
µPC2933T-E1 (XS516A00)
NJM78L05UA(XJ598A00) SI-3051N(XQ437A00)
REGULATOR +3.3V REGULATOR +5V
REGULATOR +5V
2
1
2
1 3
3
1: V in
1: OUTPUT 1
2
3
2: GND 2: COMMON
3: V out
3: INPUT
F G
H I
PEDAL
to DM-CN4
not installed
28CC1-8824132
not
installed
: not installed
L / L+R
AUX OUT
R
VIDEO
OUT
C541: not installed
28CC1-8819748 1
to FDD power
to DM-CN3
NET1
1.5/63
1.5/63
2NA-VY64290 3
28CB1-8811315 2
M5237L(XQ667A00) NJM78M12FA(XJ602A00) NJM79M12FA(XD343A00)
REGULATOR +5V REGULATOR +12V REGULATOR -12V
3 3
2 2
1 1
1
2
1: GND 3 1: INPUT
1: OUTPUT
2: OUTPUT 2: GND 2: COMMON
3: VOLTAGE adj.
3: INPUT 3: INPUT
H I
J K L
PF-1000
PEDAL (SW)
28CC1-8820116
SOFT pedal SOSTENUTO pedal DAMPER pedal
HP
PHONES
N.C.
28CC1-8811547
+
–
L
SP WIRE
WH
1
WOOFERS
BL
2
RE
3
BL
4
YE
5
BL
6
OR
7
BL
8
+
R
–
+
–
L
TWEETERS
+
– R
D5SBA20 (VK421800)
D3SBA20-4103 (VQ111500)
DIODE STACK 6.0A 200V DIODE STACK 4.0A
1: OUTPUT
2: INPUT
3: COMMON
PF-1000
J K L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17