36
Item RemarkNo Check Point
Compensation for
weak refrigeration
→Making R-temp
cooler
1
* Used when making R-temp. down
to compensate for weak refrigeration
without changing FCP temp. setting.
※Cutting of J18 ⇒ down by 1.5 ℃
※Cutting of J18, J19 ⇒ down by 3℃
Relay Power
Controller
2 * To check normal voltage of each electrical devices
to & from MICOM.
▷Check input & output voltage of MICOM and IC7, 8.
Fan Power
Controller
3
* To check input & output voltage of Fan
Electric Current Fuse
4 * To check when each device does not work (250V,3.15A)
Time Shortening
Switch
5 * To shorten time in PCB checkup
(Pressing 1 time is regarded as 1 minute has passed.)
Regulator IC(5V)
6 * To check voltage of MICOM and IC
Voltage check of IC6 (Input :12V,Output : 5V)
1
2
3
4
5
6
J18,19
■ Model : FRU-546D,FRU-546E
▷#2 : Input
▷#5 : Output
F R C
7-5. Main PCB
IC7 IC8
MICOM
IC6
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