Daewoo DWF-5590DP Series Service Manual page 39

OSCILLATION UNIT
1) CIRCUIT DIAGRAM
2) EXPLANATION OF CIRCUIT
• As the OSCILLATION UNIT is a basic part of the MICOM DRIVE. If the oscillation doesn't generate, we are able to
consider that the MICOM is destroyed.
–The waveform between the part of ! and the GND.
f=12MHz
• Specification of oscillator
TYPE OF OSCILLATOR
12MHz
CERAMIC RESONATOR
32.768KHz
CRYSTAL OSCILLATOR
It is in general use for the MICOM maker's recommendatory value of condenser which is fit for MICOM's characteristics.
• The R82(18MΩ, 1/4W) is in use to get rid of the initial abnormal oscillatory phenomenon of the 32.768 KHz crystal
oscillator.
39
!
CF2, 15
33PF
33PF
CF1, 14
@
C5 18PF
XT2, 12
RP2
10M
1.6W
C4 18PF
XT1, 11
t
MAKER
MURATA
KYOCERA
Murata 3 Terminal
Ceramic Resonator
(CST12.00MTW)
Kyocera 32.768 KHz
Crystal Cscillator
(KF-38G-13P0200)
–The waveform between the part of @ and the GND.
f=32.768KHz
NAME OF
OSCILLATOR
CST 12.00 MTW
KF-38G-13P0200
t
CONDENSER
C1 C2
33PF 33PF
18PF 18PF