Hitachi RAS-(3-6)HVNC1(E) - Page 316

8 Troubleshooting
302
SMGB0087 rev.0 - 12/2013
Check Point
Normal Range (V)
(+) Side of Tester (-) Side of Tester
P1
VDC-2
Approx. 311VDC
VCC15-1 13.5VDC ~ 16.5VDC
VCC05
GND1
4.5VDC ~ 5.5VDC
VCC12 11.9VDC ~14.3VDC
C A U T I O N
• Do not apply the test lead to unspecied check points when measuring the voltage with a circuit tester. Otherwise, it
may cause a failure of the outdoor unit PCB and the circuit tester.
• When measuring the voltage with a circuit tester, the setting of the circuit tester shall be set within the DC voltage mea-
surement range. If the setting is not correct, it may cause a failure of the outdoor unit PCB and circuit tester
Position of the check points in the Outdoor Unit Printed Circuit Board (PCB1 ref PO101).
LED3 SEG1
LED2
LED1
LED4
EF1
PCN406 CN405 CN406 CN404
EF3
EF2
YMF2
YMF1
PCN404
PCN1
PCN405PCN401
EFR1
GND1
VCC05
P1
P2
VCC15-2
VDC-1
VCC12
VDC-2
VCC15-1