Toyotomi TAG-A28FWIS, Руководство по обслуживанию

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TROUBLESHOOTING GUIDE
Both PCB (Power module)
and TAG PCB(main) are
normal
CHECK A FOLLOWING STEPS
〔 fig. 2 〕 Voltage of TAN fan motor on the TAN PCB (main)
〔 fig. 1 〕 Continuity of current fuse on the TAG PCB (main)
0Ω
0Ω
FUSE
FUSE
yellow
blue
red
tester
voltage
TAN fan motor
connector
4-way valve coil
1.5k Ω
common terminal
(5)
(1)
tester
resistance
terminal block
PCB(Power module)
+P
U
9
8
7
V
6
W
5
4
3
-N
AC
P.
2
AC
GR
1
〔 fig. 3 〕 Resistance of 4-way valve coil
〔
fig. 4
〕
Resistance of louver motor
〔
fig. 5
〕
PCB(Power module)
Normal:1.5k
Ω
※ Take off the connector and check the Resistance
of 4-way valve coil
Normal:360
〜
390 Ω
Take off the connector and check the resistance between
the common terminal and each terminal
Take off the connectors 〜 in PCB(Power module)
Measure the resistance, between U-V, V-W, W-U, V-U, W-V, U-W,
respectively.
If all the figures show infinite (more than hundreds of k
Ω
) and similar
one another(
±
30%) then the module is normal condition.
if not, it is defective.
Take off the connector 2 on the TAG PCB (main),
and check the continuity.
《
Check the TAN PCB(main)
》
Measure the voltage between the connector pins in the back of
TAN PCB(main)
TAG PCB(main)
DC5V±1V
23
(1)
(8)
24
(1)
(3)
DC15V±2V
8
−
＋
＋
24
(1)
(3)
＋
＋
23
(1)
(8)
TAG PCB(main)
Over 1kΩ
Over 1kΩ
8
−
〔
fig. 6
〕
Voltage of PCB(Power module)
〔
fig. 7
〕
Resistance of TAG PCB(main)
attention
electric shock
TAG PCB(main) is normal.
Normal:110V
〜
230V
1 9
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 1k
Ω between (8) in the and
approx. over 1k Ω