1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Title
Number RevisionSize
B
Date: 7/11/2011 Sheet of
File: N:\PCBMGR\..\04524-E_p1.schDoc Drawn By:
1 2
U2A
SN74HC04
3 4
U2B
5 6
U2C
11 10
U2E
OUT4 1
K2
OUT 3 3
GND
4GND
5
OUT 2 6
K7
OUT 1 8
IN 1
9IN 2
10
VCC 11
GND
12 GND
13
ENABLE
14 IN 3
15 IN 4
16
U5
UDN2540B(16)
1
2
3
4
5
J3
CON5
VBATT
1
VOUT
2
VCC
3
GND
4
BATT_ON
5
LOW LINE'
6
OSC IN
7
OSC SEL
8
RESET 16
RESET' 15
WDO' 14
CD IN' 13
CD OUT' 12
WDI 11
PFO' 10
PFI 9
U4
MAX693
C2
0.001
VCC
R4
1M
C3
1
A
AKK
D17
DL4148
VCC
D1
RED
2
1
3
4
5
6
7
8
9
10
RN1
330
I2C_Vcc
D2
YEL
D3
YEL
D4
YEL
D7
GRN
D8
GRN
D9
GRN
AA
K
K
D10
GRN
9 8
U2D
VCC
1
2
3
4
5
6
7
8
J4
8 PIN
+12RET
VALVE0
VALVE1
VALVE2
VALVE3
+
C6
2000/25
+12V
1
2
3
4
5
6
7
8
9
10
J5
CON10THROUGH
11
2
3
4
5
6
7
8
9
10
J7
CON10THROUGH
11
2
3
4
5
6
7
8
9
10
J8
CON10THROUGH
11
2
3
4
5
6
7
8
9
10
J9
CON10THROUGH
DGND
VCC
AGND
+15V
AGND
-15V
+12RET
+12V
EGND
CHS_GND
AC_Line
AC_Neutral
I2C_Vcc
1 2
JP3
HEADER 1X2
DC PWR IN KEYBRD MTHR BRD SYNC DEMOD SPARE
1 2
+
3-4
K1
SLD-RLY
1 2
+
3-4
K2
SLD-RLY
1 2
+
3-4
K3
SLD-RLY
I2C_Vcc
1
2
3
JP4
WTCDG OVR
+
C5
10/16
11
2
2
+C4
10/16
C1
0.1
R3
20K
1
2
3
4
J1
4 PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J2 16 PIN
11
2
3
4
5
6
7
8
9
10
J10
CON10THROUGH
1
TP1
DGND
1
TP2
+5V
1
TP3
AGND
1
TP4
+15V
1
TP5
-15V
1
TP6
+12RT
1
TP7
+12V
General Trace Width Requirements
1. Vcc (+5V) and I2C VCC should be 15 mil
2. Digitial grounds should be at least 20 mils
3. +12V and +12V return should be 30 mils
4. All AC lines (AC Line, AC Neutral, RELAY0 - 4, All signals on JP2) should be 30 mils wide, with 120 mil
isolation/creepage distance around them
5. Traces between J7 - J12 should be top and bottom and at least 140 mils.
6. Traces to the test points can be as small as 10 mils.
Q1
IRF7205
RELAY0 RELAY1 RELAY2
1 2
3 4
5 6
7 8
JP1
HEADER 4X2
R1
2.2K
R2
2.2K
VCC
R6
10K
R5
10K
INT
1
A1
2
A2
3
SCL
22
SDA
23
P10 13
P00 4
P01 5
P02 6
P03 7
P04 8
P05 9
P06 10
P07 11
Vss
12
A0
21
P11 14
P12 15
P13 16
P14 17
P15 18
P16 19
P17 20
Vdd 24
U1
PCF8575
I2C_Vcc
IO3
IO4
IO10
IO11
IO12
IO13
IO14
IO15
AC_Neutral
RELAY0
RELAY1
RELAY2
VLV_ENAB
1
2
3
4
5
6
7
8
9
10
11
12
JP2
Heater Config Jumper
RELAY0
TS0
TS1
TS2
RELAY1
RELAY2
TS0
TS1
TS2
11
2
3
4
5
6
7
8
9
10
J11
CON10THROUGH
11
2
3
4
5
6
7
8
9
10
J12
CON10THROUGH
RELAY0
RELAY1
RELAY2
WDOG
RL0 RL1 RL2 VA0 VA1 VA2 VA3
COMMON0
COMMON1
COMMON2
LOAD0
LOAD1
LOAD2
REV AUTH DATE
B CAC 10/3/02 CE MARK LINE VOLTAGE TRACE SPACING FIX
DD2
15V TVS
+
C16
22 uF
find low ESR electroytic
DD1
6A RECTIFIER
VALVE_POWER
DD4
6A RECTIFIER
4A PTC INTERRUPTOR
F1
4A PTC INTERRUPTOR
F2
11
2
3
4
5
6
7
8
9
10
J13
CON10THROUGH Printed documents are uncontrolled
DRJ 5/16/07 Add alternate thermocouple connectors
+12V
+12RT
-15V
+15V
AGND
+5V
DGND
AC_Line
AC_Neutral
IO10
IO11
IO12
IO13
IO14
IO15
IO3
IO4
E RT 02/15/11 Add C20, C21, C22, TP10, TP11, TP12
TP10 TP11
SCL
SDA
INT
TP12
E
04524
Teledyne API
13
CTRL-0
CTRL-1
CTRL-2

DCN:6161

D-12

07223C DCN6572