Memory Mode - Sony UP-21MD Service Manual

Color video printer

Hide thumbs Also See for UP-21MD:

Table of Contents

Memory mode

In this mode, the image data fetched into DRAM is output to the monitor.

The flow of an image signal is as described below.

The digital image data fetched into DRAM is read using a DRAM control circuit (CXD9111R: IC1001)

and converted from 32 bits to 8 bits. After that, the image data is adjusted in color using a color

adjustment circuit (IC701), and the image size is adjusted by the blanking produced using a DRAM

control circuit. The resultant data is converted from digital to analog and output to the analog signal

processing block.

[Memory Mode}

(C603 ardothers

SWO.HO_ J OLK LOCK

PAL

TNTSC

CLK GEN

DACLK

0902-903

= 10905 «905

ae,

TyN=

—

Tie

|€

CLK

CPU

RXD

RTS

CTs

10501

COLORO/1.

PDREQ.

UP-21MD V1

4-3

Table of Contents