AC
E
BD
2
1
3
5
7
4
6
NOTES) Warning
NOTES)
Parts that are shaded are critical
NOTES)
With respect to risk of fire or
NOTES)
electricial shock.
NOTES :
Symbol denotes AC ground.
Symbol denotes DC chassis ground.
VF(+) Power dead
R102 is defective
VF(-) Power dead
ZD102 is defective
Power dead
IC101 is defective
5V Power dead
Q107 is defective
3.3V, 1.8V, 8V, 12V Power dead
IC105 is defective
1. POWER(SMPS) CIRCUIT DIAGRAM
Please replace a defective power supply unit with a new one except fuse.
23
DVF-3080-S/8100
CAUTION:
For continued safety, replace safety critical components only with man-
ufacturer's recommended parts (refer to parts list).
indicates safety critical com-
ponents. For continued protection against risk of fire, replace only with same type
and rating fuse(s). To reduce the risk of electric shock, leakage-current or resis-
tance measurements shall be carried out (exposed parts are acceptably insulated
from the supply circuit) before the appliance is returned to the customer.
The DC voltage is an actual reading mea-
sured with a high impedance type voltmeter
with no signal input. The measurement
value may vary depending on the measur-
ing instruments used or on the product.
