Parts List - Yamaha Portatone PSR A1000 Service Manual

A B C
PSR-A1000 OVERALL CIRCUIT DIAGRAM 3/3 ( AM, VR, HP, SW, MKS5F, MK-L, MK-H )
1
not installed
2
3
4
VR
MASTER
VOLUME
28CC1-8820769-002
11
5
OP AMP
SW
OP AMP
Power Supply
STANDBY/ON
28CC1-8820769-002
11
6
DC IN
REGULATOR +12V
to DM-CN105
7
HOST SELECT
MIDI PC2 PC1 MAC
8
to DM-CN109
9
10
11
AM
12
PSR-A1000
A B C
D E F G
OP AMP
EQUALIZER
OP AMP
EQUALIZER
Signal ground wire
Photo Coupler
INVERTER
LINE TRANSCEIVER
LCD CONTRAST
28CC1-8820769-002
D E F G
H I J
OP AMP
R
AUX OUT
(LEVEL FIXED)
L
OP AMP
R
OUTPUT
L/L+R
HP
POWER AMP 0.65W 2ch
28CC1-8820769-002
POWER AMP
7W 2ch
POWER AMP 17W
28CC1-8820769-001
11
IN
MIDI
OUT
MK-H
TO HOST
2
MK-L
FOOT PEDAL
1
(SWITCH)
to DM-CN501
2
H I J
K L M
S3V20 (VR313500)
DIODE
2
1
1: ANODE
2: CATHODE
NJM7812FA(XJ608A00)
REGULATOR +12V
3
2
1
1: OUTPUT
2: COMMON
3: INPUT
TO SERVICE PERSONNEL
Critical Components Information
Components having special characteristics are marked
and must be replaced with parts having specifications
equel to those originally installed.
Note: See parts list for details of circuit board
component parts.
PHONES
11
to DM-CN102
Tweeters
Woofers
K L M
N O P Q
PSR-A1000
SI-8050S(LF1103) NJM78L05UA(XJ598A00)
SFPB-62V (VZ060500)
REGULATOR +5V
(XT514A00) DIODE
REGULATOR +5V
1
1
2
3
1
2
5 3
2 1: V in
4
2: SW out
3: GND 1: OUTPUT 1: ANODE
4: V os 2: COMMON 2: CATHODE
5: S.S 3: INPUT
AN7812F(XM169A00) µPC2933T-E1(XS516A00)
REGULATOR +12V REGULATOR +3.3V
2
1
1
2
3 3
1: V in
1: INPUT
2: GND
2: COMMON
3: OUTPUT 3: V out
: Mylar Capacitor
!
: Ceramic Capacitor
: Semiconductive Cera Cap
MKS5F
CPU KBS
V8142700
VU648200
VU648100
PSR-A1000
N O P
Q
1
2
3
4
5
6
7
8
9
10
11
12