
SiE71-202
Troubleshooting
Troubleshooting
47
1.14
Main Unit PCB Assembly
Error Detection
Method
Check microcomputer operation monitor.
Error Generating
Conditions
When main unit PCB assembly does not operate.
When communication circuit errors.
Possible Causes
Fuse (excess current)
Power transformer
Noise
Main unit PCB
Troubleshooting
Main unit PCB
NO
NO
NO
YES
Does equipment
reset properly.
Is it flashing?
After checking
other possible
causes, replace
PCB assembly.
Is monitor indicator
Off?
YES
YES
Monitor indicator remains
On.
With remote controller
disconnected, check
microcomputer operation
monitor.
Turn off power, then
restart.
Noise may be causing erroneous
operation. If power reset does not
solve the problem, replace main unit
PCB.
There may be a malfunction in main
unit PCB fuse, main unit PCB or power
transformer.
Check fuse and transformer. If they are
normal, replace PCB.
Replace main unit PCB.
(HF013)
Exhaust
air fan
Supply
air fan
CN3
CN4
CN2
CN1
CN7
FuL
10A
CN13
CN8
CN12
CN5
CN6
CN9
KRP
50-2
SS1
CN11
CN10
L
N
H
M
L
P2
P1
F1
F2
J1
J2
JC
LED A
(HL031)
(Microcomputor Operation Monitor)
Содержание VAM 150FAVE
Страница 5: ...SiE71 202 iv Table of Contents ...
Страница 10: ...SiE71 202 General Constructions 1 Part 1 General Constructions 1 General Constructions 2 1 1 Explanation 2 ...
Страница 13: ...General Constructions SiE71 202 4 General Constructions ...
Страница 14: ...SiE71 202 Product Specification 5 Part 2 Product Specification 1 Product Specification 6 1 1 Specification 6 ...
Страница 37: ...Control Functions SiE71 202 28 Control Functions ...
Страница 41: ...Circuit Operations SiE71 202 32 Circuit Operations ...
Страница 73: ...Supplementary Explanation SiE71 202 64 Supplementary Explanation ...
Страница 74: ...SiE71 202 Appendix 65 Part 9 Appendix 1 Appendix 66 1 1 Wiring Diagram 66 ...
Страница 77: ...Appendix SiE71 202 68 Appendix ...
Страница 81: ...SiE71 202 iv Index ...