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"SECTION
4
CIRCUIT
DESCRIPTIONS
4-1.
1A BOARD
(LIGHT SENSOR
BOARD)
PR
sensors output
The electric voltage obtaned by ICS is integrated during the
E
ground
vertical period by IC3 (2/2).
The integrated signal is sampled-and-held by IC22. Either one
of RG or B is selected by IC42 switcher, passed throug buffer
es
| ees |
4-2.
IB BOARD (MEMORY
BOARD)
IC7 corresponds to D9300 (D6500) on menu and MEM-1 while
1C6 corresponds MEM-2 and MEM-3.
1C3 is decoder that provides the select signal selecting either R,
G or B.
The V.P signal is the vertical rate reference pulse in order to
generate
the RESET
pulse, that triggers one-shot IC8 and
generates the sample/hold signal and RESET pulse signal.
Their phase relations are shown in Fig 4-2.
4-1(E)
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