Daewoo DV-K580DZ-T, Service Manual

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14
CIRCUIT OPERATION
1. VIDEO PART
1-1) EE MODE
Video Signal which is output from RL902 is input to pin 37 of IC301 through OSD IC. It is amplified 6dB by
AGC, then it is output to pin 34. This output signal is output to Video Jack through RL902 of RELAY IC.
1-2) REC MODE
The signal which is input to pin 37 of IC301 is output to pin 3 through IC internal AGC AMP. This output
signal is input to pin 4 of IC301 by passing Emphasis circuit of external IC. Luminance signal is output
from pin 40 after FM modulator through MAIN-Emphasis and color signal is output from pin 15 after low-
converted. Each signal is input to pin 12 of IC401 through REC-EQ, then it is recorded on the tape
through HEAD after passing out MIX AMP.
VIDEO IN
VIDEO OUT
V.IN
IC001
OSD IC
IC301
VIDEO IC
REC EQ
IC401 HEAD AMP
Y-EMPA
CIRCUIT
REC C
REC Y