Project 10 Control - SPHINX Project10 Service Manual

SPHINX Project Ten
+5V
U3 +
TL7757
GND
X1
8MHz
10
11
12
+5V
13
14
+
C1 C2 C5 C3 15
33p 33p 100u 100n 16
25V 17
18
GND 19
20
21
22
23
24
25
26
NORMAL JUMPER SETTINGS
JUMPER CLOSED OPEN
J1 SERVICE PJ10
R10
100K
Xtal P10
EXtal P11
MD1 P12
MD0 P13
NMI P14
VCC P15
STBY P16
GND P17
nc GND
P40 nc
H8
P41 P20
P42 P21
P43 P22
P44 P23
P45 P24
P46 P25
P47 P26
U1
H8/325
J1 +5V
JUMPER
GND
Service Manual
+5V
IR1 R7
SFH506-38 10R0
2
V+
1
D
IR
3 S1
GND R8
47K5
+
C4
47u
standby
GND
+5V +12V
R5
475R
MU
U2
ULN2804
LD2
60 1 18
IN1 OUT1
59 2 17
IN2 OUT2
58 3 16
IN3 OUT3
57 4 15
IN4 OUT4
56 5 14
IN5 OUT5
55 6 13
IN6 OUT6
54 7 12
IN7 OUT7
53 8 11
IN8 OUT8
52 LD1
GND
51
50
49
48 GND R3
STB
47 475R
46
45
44 R1 R9
+5V
10R0 10R0
T2 C2240
C2240 T3
VOL2
T4 T5
A970 A970
C6
100N

Project 10 control

S2 S3 S4 S5
mute cd tuner line1 line2
R6 R4
1K50 1K50
LD7 LD3 LD4 LD5 LD6
standby
R2
475R
VOL1
GND
S6 S7
tape-mon
MU
TM
CD
TU
L1
L2
to main board
CN1
L2 1 LINE2
VOL1 2 VOL1
L1 3 LINE1
VOL2 4 VOL2
TU 5 TUNER
+5V 6 +5V
CD 7 CD
+5V 8 +5V
TM 9 TAPE-MON
STB 10 STANDBY
11 GND
GND 12 GND
13 GND
12V-SW 14 +12V-SW
TS 15 T-SENSOR
16 +12V LED
+12V
17 +12V LED
MU 18 MUTE
22