Power(Smps) Circuit Diagram - Kenwood DVF-3080-S/8100 Service Manual

1. POWER(SMPS) CIRCUIT DIAGRAM

Please replace a defective power supply unit with a new one except fuse.
Power dead
IC101 is defective
NOTES) Warning
NOTES : Symbol denotes AC ground.
NOTES) Parts that are shaded are critical
NOTES) With respect to risk of fire or
Symbol denotes DC chassis ground.
NOTES) electricial shock.
CAUTION: For continued safety, replace safety critical components only with man-
ufacturer's recommended parts (refer to parts list).
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.
VF(+) Power dead
R102 is defective
The DC voltage is an actual reading mea-
indicates safety critical com- 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.
VF(-) Power dead
ZD102 is defective
3.3V, 1.8V, 8V, 12V Power dead
IC105 is defective
5V Power dead
Q107 is defective