York EVHC 09 DSAAAR, Service Manual

Page: 23 / 69

143
Schematic Diagram
• B OTT OM VIEW
PIN PIN
1
JTAG
49
2 50
3 51
25/35
4 +3.3V 53
5 54 +3.3V
6 56
7 58
8 59 +3.3V
9 60
10 +3.3V 61
JTAG
12 62
JTAG
13 63
14 64 +3.3V
16 67
17 68
18 69
19 70
20 +3.3V 71
22 72
23
PFC
73
24 74
26 75
27 76
28
PWM
81
29 82 +3.3V
30 +3.3V 83 +3.3V
31
PWM
84
32 86
33
PWM
87
34 88
35 +3.3V 90
36
PWM
91 +3.3V
37
PWM
93
38 94
JTAG
39
PWM
96
JTAG
40 +5.0V 97
46 98 +3.3V
47 +3.3V 99
JTAG
48 100
JTAG
Definition Definition
Quick test
pin
Memory
Fan motor PWM output
Module protection signal input
Memory
Phase-locked loop
Phase-locked loop
Communication sending
Communication receiving
Power supply control output
Pin
Pin
Auxiliary heat control output
Four-way valve control output
Indicator output
Overload protection singal input
Signal output
Pin
Pin
Pin
Pin
Reset signal
Indicator output
Crystal oscillatory pin input
Crystal oscillatory pin input
Signal output
Signal output
Fan motor control singal output
Signal output
Electronic expansion valve driving signal
Electronic expansion valve driving signal
Indicator output
Signal output
Signal output
Models selection port
Fan motor speed feedback input
Electronic expansion valve driving signal
Protection signal input
Electronic expansion valve driving signal
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Digital ground
Zero crossing detection
signal input
PFC driving level output
U phase current sampling input
W phase current sampling input
V phase current sampling input
Air exhaust sampling input
Ambient temperature sampling input
Air intake sampling input
Tube temperature sampling input
Current sampling input
Bus voltage sampling input
Electronic valve temperature
sampling input
Outdoor unit pin definition