DAEWOO ELECTRONICS DWF-5590D Series, Service Manual, Page: 34 / 63

ELECTRIC POWER SUPPLY UNIT
1) CIRCUIT DIAGRAM
2) EXPLANATION OF CIRCUIT
• The primary voitage of the transformer sets 220V, the secondary voltage of the transformer is full wave rectified by use
of the D7 (1N4003) & D8 (1N4003)
34
16
D1, 1N4003
REGULATOR
7806
D6, 1N4003
104Z
C32 +
C13
3300µF
10V
C34
+
410µF
16V
C32
104Z 104Z
C31 C33
+
220µF
35V
D5, 1N4003
220V
COMMON
!
The gray & red (The waveform in secondary part of the
transformer)
@
Measuring the waveform in case of the removing
condenser by the removal ripple C33.
#
It is removed the ripple with attaching the C33 (2200
¥
F).
$
The waveform of output in the REGULATOR I.C. 7806.
%
The waveform after passing the D2.
f=60Hz
Vpeak=11.4V
Vrms=8V
6V
0V
5.4V
0V
0V
12V
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