Service manual

Circuit Descriptions
Samsung Electronics 6-7
REAGCO
RFEQO
EQIN
474
RF EQ
PWM1
EQG
EQF
PLLGF
VZOCTL
PWM2
VREFEQ RFDVCC
?
.
,
‡
°
·
‚
Fig. 6-12
The control parameters of DVD EQ and CD EQ are as follows.
1) DVD CD EQ control parameter
ΠEQG (Pin 97) : Changes the gain of peak frequency with EQ frequency characteristic. Convert PWM signal,
output from KS1453, into DC via low-pass filter.
´ EQF (Pin 98) : Changes the peak frequency with EQ frequency characteristic. Convert PWM signal, output
from KS1453, into DVD via low-pass filter.