Hitachi RAM-71QH5 Service Manual page 54

5. Reversing valve control circuit
Reversing valve
DC voltmeter
or multimeter
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CN25
3
D841
1
Q841
V
OV
Fig. 5-1
– 63 –
35V
5V
PQ841
R832 R843
16
R841
IC9
Micro
computer
1 24