Schematics and PWB's
Clock Display
CLOCK DISPLAY
G
TestLand1
1
J1
C1
100nF
TestLand2
1
J3
TestLand3
1
J5
+5V
R7
D1
10K
BAT54
C2
C3
10uF
100nF
Y1
12MHz
R13
+5V
10K
R14
10K
TO
0247
H1
1
2
J6
OR
3
+5V
TO
4
0237
J
J6
C2
+
1
1
4
Y1
BZ1
+
U2
L01H.1E
7.
TestLand4
1
RB6
J2
TestLand5
1
RB7
J4
U1
PIC16C62A
1
21
Port0
MCLR/VPP
RB0
22
Port1
RB1
20
23
VDD
Port2
RB2
24
Port3
RB3
8
Port4
VSS
25
RB4
26
Port5
19
RB5
VSS1
RB6
27
RB6
28
RB7
LED-DRIVER
RB7
11
RC0
9
12
RC1
OSC1
13
Port6
Port6
RC2
16
Port7
RC5
17
Port8
RC6
10
18
Port9
R12
OSC2
RC7
100R
2
Port10
RA0
3
Port11
RA1
4
Port12
RA2
15
5
Port13
RC4/SDA
RA3
6
Port14
RA4
7
RA5
14
RC3/SCL
R28
100R
+5V
R16
3
2K2
R18
Q6
1
BC857B
4K7
2
BZ1 +
BUZZER
-
R26
R25
100R
47R
2
R27
Q7
1
BC847
10K
3
5
D3
R9 R8
R2 R1
D2
R22
R5 R4
46
Q1
+5V
R1
2K2
R2
Port4
1K
Q2
+5V
R3
2K2
R4
Port5
1K
Q3
+5V
R5
2K2
R6
Port8
1K
Q4
+5V
R8
2K2
R9
Port9
1K
Q5
+5V
R10
2K2
R11
Port14
1K
Port6
R17
Port0
100R
R18
Port1
R19
100R
Port2
100R
R20
Port3
R21
100R
Port10
R22
100R
Port11
R23
100R
Port12
R24
100R
Port13
Port7
100R
Q7
R25
C1
R26
Q6
R27
R28
Y1A
U1
BC857B
BC857B
BC857B
BC857B
BC857B
U2
LTC4625G
1
2
6
8
4
10
4-DIGIT, 6-SEGMENT LED
NC
NC
A
B
C
D
E
F
G
DP
9
12
14
16
13
3
5
11
15
7
Alarm
Message
D2
D3
RED LED
YELLOW LED
CL 16532139_005.eps
141201