Sony UP-980 - 4-5-9. Analog Circuit Section Control; 4-5-10. Gate Array IC601 Control

4-5-9. Analog Circuit Section Control
1C505 controls followings.
Pin No vO Explanation Process of IC505
IC505 oO Selection of trap filter ON/OFF L:ON
pin 37 H: OFF
IC505 10) Selection of NTSC/PAL L: When NTSC signal is inputted.
pin 36 H: When PAL signal is inputted.
iC505 oO Selection of AGC function ON/OFF L:ON
pin 34 H: OFF
1C505 oO Selection of SHARPNESS ON/OFF L:ON
pin 33 H: OFF
IC505 1@) Selection of Hi-SCAN/VIDEO L.: When VIDEO signal is inputted.
pin 32 H: When Hi-SCAN signal is inputted.
IC505 i Composite sync signal Measure horizontal sync frequency and
pin 31 use it signal distinction.
IC505 oO 75 ohm termination L: OFF
pin 38 H:ON
4-5-10. Gate Array 1C601 Control
IC505 transfers operation mode data to gate array 1C601. Start and end indication of CAPTURE (video signal fetch to the
Memory) operation and COPY (memorized image is sent to the head.) operation are performed.
[CAPTURE Mode]
nK_CAPTURE
=
IC201-63pin
nREGEN
mie.
2
ICS505-51pin
1C505-49pin
GASCLK
:
ame
1C505-50pin
Ee
we
nFETCH
a
sane
Sa
CAPTURE
start
nFETCHING
IC505-70pin
During
CAPTURE
nFETCHSTOP SS ea |
IC505-70pin CAPTURE end
[COPY mode]
nK_COPY “2° —-—- .--— =
1C201-62pin
nREGEN
1C505-51 pin
GASCID
1C505-49pin
issoes0 —————=rti‘“‘i‘<‘<‘i‘(MSCt;C;CCN
IC505-50pin
nCOPY ea ae
IC505-69pin COPY start
nCOPYING :
IC505-59pin During COPY
nCOPYSTOP pe ee ee
1C505-60pin
COPY
end
UP-980(UC)
UpP-980CE(CE)
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