Sega Mega-CD User manual

MAINTENANCE

MANUAL

EXPORT

August,

1992

ENTERPRISES,

LTD.

Rev.

1 .

MEG.A-CD

~.AINTENANCE

MANUAL

BLOCK

DIAGRAM

EUROPE

•·.

·.·

1 . .

·x '·+

>ND

·.

ASSEMBLY

DRAWING

2-1

GENERAL

REFERENCE

NUMBER

2-2.

ASSEMBLY

LIST

1001

TOP

CASE

ASSEMBLY

6-f

1002

SIDE

COVER

SIDE

KNOB

ASSEMBLY

~-q

1003

SIDE

COVER

ASSEMBLY

(0--t/

1004

CD-ROM

UNIT

SHIELD

ASSEMBLY

!~~(~

1005

MAIN

BOARD

ASSEMBLY

l4-f5

1006

DRIVE

UNIT

SUB

BOARD

ASSEMBLY

}b-(l

1007

BOTTOM

SHIELD

FRONT

COVER

ASSEMBLY

lb'-/~

2-3.

PROCEDURE

DISASSEMBLY

AND

ASSEMBLY

~-JI

SPARE

PARTS

LIST

ACCESSORIES

LIST

PCB

REPAIR

PROCEDURE

SOFT

HARD

CHECK

MANUAL

;ft6 -

7 .

PARTS

SPECIFICATION

7-1.

MAIN BOARD I

HD68HCOOOCP-12

7-2.

MAIN BOARD

IC2

CUSTOM MCE2

MB634120

7-3.

MAIN BOARD

IC3

CUSTOM

RF5Cl64A

7-4.

MAIN BOARD

IC6

MB3790

7-5.

MAIN BOARD I

C7.

TC511664BZ-80

7-6.

MAIN BOARD

ICl0.11

TC51832FL-10

7-7.

MAIN BOARD

IC13

LC8951

7-8.

MAIN BOARD

IC14.15

MB8464A-80

7-9.

SUB BOARD I

LC7883KM

7-1

0. SUB BOARD

IC2

LC7881M-C

7-11.

SUB BOARD

IC3.4.5

µPC844G2

PARTS

LIST

OF PCB

8-1.

MEGA-CD MAIN

EXPORT

8-2.

MEGA-CD SUB

EXPORT

8-3

ASSY

MEGA-CD CONNECT

EXPORT

SCHEMATIC

DIAGRAM

9-1.

MEGA-CD MAIN

9-2.

MEGA-CD SUB

9-3.

MEGA-CD CONNECT

MOUNT

DIAGRAM

10-la.

MEGA-CD MAIN

COMP

SIDE

10-lb.

MEGA-CD MAIN

SOLD

SIDE

10-2

MEGA-CD SUB

COMP

SIDE

10-2b.

MEGA-CD SUB

SOLD

SIDE

10-3a.

MEGA-CD CONNECT

COMP

SIDE

10-3

MEGA-CD CONNECT

SOLD

SIDE

11.

PCB

DESIGN

SPEC.

b)-64

315-5548

6~-f'B

315-5476A

1c;--'&P

'75

<id-

%~-&5

~'\

°Jo

°'

q-~5

9<6-10

I·

\CJ

d--

°?>

tDLt

1C)5

106

10(

10%

e>q

f~'l

[

11-la.

11-lb.

MEGA-CD

MEGA-CD MAIN

BOARD

COMP

SIDE

LAYER

\\\

MAIN

BOARD

SOLD

SIDE

LAYER

\t<J-

1-2a.

11-2b.

11-2a.

l-2b.

PC BD

MEGA-CD

SUB BOARD

COMP

SIDE

LAYER

\\)

SUB

BOARD

SOLD .

SIDE

LAYER

\\?J

CONNECT BOARD COMP

SIDE

LAYER

\\~

CONNECT BOARD SOLD

SIDE

LAYER

,,5

MEGA-CD

EXPORT

BLOCK

DIAGRAIVI

EJ~

VOP

IHRAM

68000

HAIH

CPU

----1~0F71J\'-

AORS

DATA

BOOT-ROH

-;71

bit

C.1

X'TAL

l c 1

6Ce00

ADRS

12.!"f{flz

I I

~DATA

SUB

CPU

0-l~

0 R

PRG-RNl

4Hbit

RAK

le.~

1C7

l cli

HEriA-CD

llARO

HA~IUAL

r-i

13T

l'l

~t)

,,,

1Hbi

tRAH

(WORD-RAH

0.)

AORS

,,,

•

€f>

'11

ll:

c..

BKxBbit

BACKUP

RAH

DATA

1661

~-------1,

AORS

2 ME

._CD.

ENG

INE

1HbitRAH

tc..

(WORD-RAH

~1<~0A'"T'"TAr-nl6

....

b~1t~..,1

~/A

I I

7°

)

LPF

I'J77~J.J.E-r-

4KHz

20KHz

' @ @

L R

OUT

~7'

i:i

if'

J-F

DATA

JT;f'UATA

,,,

,~-

CDC

1t·r1

LC8951

(COfflii-JW;3))

coo

KSK

1200A

J n

16K

X8bi t

RF5C164

Pa-t§'-;mt

(SOUND)

l ( 3

IC..

O/A

lt.f~

LC7B81

64KxBbit

VER

0.5

1991/07/02

(

MEGA-CD

EXPORT

ASSEIVIBLY

DRAVVING

GA-CD

GENE.RAL

REFERENCE

NUMBER

·--------------------------------------------------------------------------------------------------

REF

NO.

PART

NO.

DESCRIPTION

QTY

·--------------------------------------------------------------------------------------------------

001

253-6437

TOP

CASE

MEGA-CD

002

610-5268

ASSY

BOTTOM

CASE

MEGA-CD

253-6438

BOTTOM

CASE

MEGA-CD

601-6727

RUBBER

FOOT

MEGA-CD

003

xxx-xxxx

ASSY

KNOB

MEGA-CD

253-6442

KNOB

MEGA-CD

253-6443

SIDE

KNOB

HOLDER

MEGA-CD

029-0060

TAP

SCR

2.6*6

004

253-6441-02

COVER

MEGA-CD

EXPORT

005

253-6439-01

FRONT

COVER

SEGA-CD

USA

1 0 1

837-8952

MEGA-CD

MAIN

EXPORT

102

837-8953

MEGA-CD

SUB

EXPORT

103

839-0534

ASSY

MEGA-CD

CONNECT

EXPORT

201

012-0310

TAP

SCR

3*10

202

029-0089

TAP

SCR

3 * 8 B

203

012-0410

TAP

SCR

4*10

204

012-0312

TAP

SCR

3*12

3 0 1

250-5289

SIDE

COVER

SHIELD

302

250-5280

CD-ROM

UNIT

SHIELD

303

250-5287

B D

ELD

TOP

304

250-5288

MAIN

SHIELD

BOTTOM

305

250-5286

BOTTOM

ELD

MEGA-CD

401

xxx-xxxx

ASSY

DRIVE

UNIT

(JVC

ELM-135)

610-5270-10

DRIVE

UNIT

(JVC

ELM-135)

253-6440-01

FRONT

DOOR

SEGA-CD

USA

501

610-5364

ASSY

SIDE

COVER

MEGA-CD

EXPORT

- 1 -

ASSEMBL~

LIST

FOR

SEGA-CD

INDEX

1001

TOP

CASE

ASSEMBLY

1002

SIDE

COVER

SIDE

KNOB

ASSEMBLY

1003

SIDE

COVER

ASSEMBLY

1004

CD-ROM

UNIT

SHIELD

ASSEMBLY

1005

MAIN

BOARD

ASSEMBLY

1006

DRIVE

UNIT

SUB

BOARD

ASSEMBLY

1007

BOTTOM

SHIELD

FRONT

COVER

ASSEMBLY

- 2 -

PARTS

LIST

FOR

ScGA-CD

1001

TOP

CASE

ASSEMBLY

REF

NO.

PART

NO.

001

201

202

253-6437

012-0310

029-0089

DESCRIPTION

TOP

CASE

MEGA-CD

TAP

SCR

1 0

TAP

SCR

3*8

BLK

- 3 -

QTY

100

TOP

CASE

ASSEMBLY

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