Philco STC-9630 - 9 Schematic & Pcb Wiring Diagram

C401 104
C401
104
1 2 3
U901 HS0038A2
K906K903
K901 K902
D901
1N4148
D902
1N4148
KEY3 KEY2 KEY1
S1
S2
LEDST LEDCK LEDAT VCC
GND
C901 104
IR
R401
51K
R405
10K
R403
10K
K904 K905
R404
10K
TC401
220uF/16V
IR
OSC
1
DOUT
2
DIN
3
CLK
4
STB
5
K1
6
K2
7
K3
8
VDD
9
NC
13
SEG1/KS1
10
SEG2/KS2
11
SEG3/KS3
12
SEG4/KS4
14
SEG5/KS5
15
GR6
23
SEG6/KS6
16
SEG7/KS7
17
SEG8/KS8
18
SEG9/KS9
19
SEG10/KS10
20
SEG11
21
SEG12/GR7
22
VDD
25
GND
26
GR5
24
GR4
27
GR3
28
GND
29
GR2
30
GR1
31
GND
32
U401 PT6961
LEDAT LEDCK LEDST KEY1 KEY2 KEY3
S1 S2 S3 S4 S5 S6 S7
S8 G1 G2 G3 G4 G5 G6 G7
VCC
VCC
VCC
VCC2
TC402
100uF/16VS1
S2 S3 S4 S5 S6 S7 S8 G1 G2 G3 G4 G5 G7 G6
2 5 7 10 12 14 15 16
A
11
B
13
C
8
D
4
E
9
F
6
G
3 1
LED401
LED-SOCK(1)
S9
S9
12
LED906
12
LED905
12
LED904
12
LED903
12
LED902
12
LED901
12
LED907
VCC1 GND KEY1 KEY2 KEY3 S1 S2
VCC1
2 3 4 1 5 6 7
XS401 XS07
LED
Q401 8050
R407 10K
R406 470
LED
LED#
VCC
2 1XS403
XS02
LED# GND
2 1
XSA01 XS02
LED# GND
12
LEDA01
IR
VCC1 GND KEY1 KEY2 KEY3 S1 S2 IR
R402
0R
R408
0R
LED
2 3 4 1 5 6 8 9 7
XS901 XS09
VCC2
Q402 8050
R409 10K
R410 1/4W
VCC
2 3 4 1 5 6 8 9 7
XS402 XS09
R411 1/4W
VCC1
R412 100R
TC403 100uF/16V
VCC VCC2
VCC2