Service Manual

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SH1

BOARD !C103

IC CUSTOM CHIP OCU YGR019A

Parts

No.

:

315-5873

IITopView

168

42

I

I

I

43

127

126

85

84

II

Block

Diagram

SH

uP

OESCRAMBLE

T

SUBCODE

IRQ

1

~'"'""I

""

(Upper)

~mrQ~b~

IRQ2

Jf

ROTECTO

L

~C(CRCC>!-H

CTRL

ADR

DATA

(4M DRAM)

GACTRL

l

CDIROMSKJ

(Upper)

[

SPDATA

1-

{ L

SUBCODE

W·-r~t

I

GASTAT

18

I--

8

~

18

..........

--

~

:

=

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= =

F=

r--

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L

~

J

"0

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ISH-FIF~

we

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DATA

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a:o

.......-

:E:z

eo

CTRL

-

COUNTER

i=O

ow

CD

I

ROMS~

COl

RQREQJ

~COMMANDd

(.)

<e

(Lower)

(Lower)

,

REG.

o-3

-

v_

'7

-

lsummj

-'

VIC:

HI

ROMSK

I L

HI

ROOREO]

~RESPONSE!

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L

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STAT

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REG.

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Ct.>

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FIF~

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J:

,

COUNTER

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A-bus

DATA

I

II

I.

ir

II

IRQ

~

18

Auod

HOST

SYSTEM

-66-

CD

SIGNAL

PROCESSOR

CD-ROM

Data

CO-DA

HD49232

v:

~

:~

rr:

MPEG

Audio

.~

!--;

-

:

~

:

=~

MPEG

Video

SHDATA

BUS

(BufferedSUB)

18

'

RGB

'7

25