4-12
UP-960(UC)
UP-960CE(CE)
4-4-9. Analog Circuit Section Control
IC505 controls followings.
Pin No
I/O
Explanation
Process of IC505
IC505
O
Selection of trap filter ON/OFF
L : ON
pin 37
H : OFF
IC505
O
Selection of NTSC/PAL
L : When NTSC signal is inputted.
pin 36
H : When PAL signal is inputted.
IC505
O
Selection of AGC function ON/OFF
L : ON
pin 34
H : OFF
IC505
O
Selection of SHARPNESS ON/OFF
L : ON
pin 33
H : OFF
IC505
I
Composite sync signal
Measure horizontal sync frequency and
pin 31
use it signal distinction.
4-4-10. Gate Array IC601 Control
IC505 transfers operation mode data to gate array IC601. 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
IC505-51pin
GASCID
IC505-49pin
GASCLK
IC505-50pin
nFETCH
IC505-72pin
nFETCHING
IC505-70pin
nFETCHSTOP
IC505-70pin
operation mode data
transfer CLK
CAPTURE start
CAPTURE end
During CAPTURE
[COPY mode]
nK_COPY
IC201-62pin
nREGEN
IC505-51pin
GASCID
IC505-49pin
GASCLK
IC505-50pin
nCOPY
IC505-69pin
nCOPYING
IC505-59pin
nCOPYSTOP
IC505-60pin
transfer CLK
operation mode data
COPY start
COPY end
During COPY
Содержание UP-960
Страница 1: ...VIDEO GRAPHIC PRINTER UP 960 UP 960CE 1st Edition SERVICE MANUAL ...
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Страница 75: ...8 1 8 1 UP 960 UC UP 960CE CE SECTION 8 BLOCK DIAGRAMS ...
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