Toyotomi TAG2-62HI, Service Manual

Page: 17 / 37

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TROUBLESHOOTING GUIDE
CHECK A FOLLOWING STEPS
METHOD OF CHECK
DC current detection and in case of irregular work of compressor
TAG PCB(main)
DC5V ± 1V
23
(1)
(8)
24 (1)
(3)
DC15V ± 2V
8
−
＋
＋
24 (1)
(3)
＋
＋
23
(1)
(8)
TAG PCB(main)
Over 500 Ω
Over 1k Ω
8
−
〔 fig. 7 〕 Voltage of PCB 〔 fig. 8 〕 ÅlResistance of TAG PCB(main)
check the resistance of TAG PCB(Power module)
[see fig.6]
[see fig.8]
normal
accident of compressor
accident of TAG PCB(Power module)
[see fig.7]
the resistance of TAG PCB(main)
accident of TAG PCB(main)
normal
normal
NO
NO
YES
YES
accident of TAG PCB(Power module)
check the voltage (230V) between
1 and 2 in terminal of TAG
normal
NO
YES
check the power supply wiring
check the voltage of TAG PCB(main)
NO
YES
take off the connectors &
23 24
check the damage of piping, excess gas
take off the plug and wait a few minutes
Flow Chart
Both PCB (Power module)
and TAG PCB(main)
are normal.
TAG PCB(main) is normal.
24 8
23 8
24 8
23
8
Measure both voltages as follows
without taking off the connectors.
between (3) in the and
approx. DC 5V
± 1V
between (8) in the and
approx. DC 15V
± 2V
Measure both resistances as follows
after taking off the connectors.
between (3) in the and approx.
over 500
Ω between (8) in the and
approx. over 1k Ω
! When measure each resistances,
be sure to take off the plug and
wait a few minutes.