Sega MEGA DRIVE PAL-G User manual

MAINTENANCE MANUAL
PAL-G
A-ugust, 1992
SE GA ENTER PR I SES, L TD.
Rev. A

IVIE GA
DRIVE
IVIAINTENANCE
PAL-G (GERMANY)
IVIANUAL
1. BLOCK DIAGRAM
2. ASSEMBLY DRAWING
2-1. GENERAL REFERENCE NUMBER LI ST
2-2. ASSEMBLY LIST
1001 TOP CASE ASSEMBLY 1
1002 TOP CASE ASSEMBLY 2
1003 SHIELD PLATE TOP ASSEMBLY
1004 MAIN BOARD ASSEMBLY
2-3. PROCEDURE OF DISASSEMBLY AND ASSEMBLY
3. SPARE PARTS LIST
4. ACCESSORIES LIST
5. PCB REPAIR PROCEDURE
6. SOFT & HARD CHECK MANUAL
7.
PARTS
SPECIFICATION
7-1.
MAIN
BOARD IC l IC
SCN68000C8N64
7-2. MAIN BOARD
IC3 IC 1LPD42832C-15
7-3. MAIN
BOARD IC6 IC Z80A
7-4. MAIN
BOARD IC7 IC 1LPD4364C-15
7-5. MAIN
BOARD
IC8 IC CUSTOM YM7101
315-5313A
7-6. MAIN BOARD
IC 1 1 IC YM2612
7-7. MAIN
BOARD
IC13 IC CXA1145P

8.
PARTS
LIST OF
PCB
8-1.
IC-BD
M5
VA4
8-1.
IC-BD
M5
VA6.5
8-2. ASSY
SUB
BOARD3
M5
8-3.
ASSY
SUB
BOARD
M5
9. SCHEMATIC DIAGRAM
9-1. PC BD M5 PAL-G VA4 MAIN
9-2. PC BD M5 PAL-G VA6.5 MAIN
1 0.
MOUNT
DIAGRAM
10-la. IC
BD
M5 VA4
PAL-G
MAIN
10-lb. IC
BD
M5 VA4
PAL-G
CHIP
10-2a. IC
BD M5
VA6. 5
PAL-G
MAIN
10-2b.
IC
BD M5 VA6. 5
PAL-G CHIP
1 1 . PCB
DESIGN SPEC.
11-la. PC
BD M5 PAL
VA4
MAIN BOARD
COMP SIDE MARK
11-lb.
PC
BD M5
PAL VA4
MAIN BOARD
SOLD S IDE MARK
11-lc.
PC
BD
M5 PAL
VA4
MAIN BOARD COMP SI DE LAYER
11-ld.
PC
BD M5
PAL VA4
MAIN BOARD
SOLD SIDE LAYER
l l-2a. PC BD M5
PAL
VA6.5
MAIN BOARD COMP
SIDE MARK
l l-2b.
PC BD
M5 PAL
VA6. 5
MAIN BOARD SOLD
SIDE MARK
l l-2c.
PC
BD M5 PAL
VA6. 5
MAIN BOARD
COMP SIDE LAYER
l l-2d.
PC BD
M5 PAL
VA6.5
MAIN BOARD
SOLD
SIDE LAYER

MEGA DRIVE
PAL-G (GERMANY)
BLOCK
DIAGRAM

MEGA
OF~ I VE PAL BLOCK
1601 - 18
r----------------------------1
I I
r
Not Used I I I
I
IPERIPHEAIIL DEVICE
I
V-RAM
I
GAME
CARTRIDGE
(FLOPY DISK)
I
64KB
I
ANTENNA
·~
~
I / I '\17
~-------------------I
i:I
'
--------------
~-----------------
~I
b..
-
a:
~
,t,
... "''
X
L ~DCK
I ZCLK:3.!IHHZ _
VIDEO/
5.:1
0
VCLK! 7 ~ 8HHZ
y m
CN 3 I~
VCLK
CN 2
SC HCLK
HClk ...
RGB/
AUDIO
lLl:lt
" -
I'
~DCK;,; SYNC•
,--,/
a:
I -
Ill
i[4 ~4
ZCLK"
,_
RF-MOO
I ,
' I
~
) ~3 .203 .. 24HU2
a:
...
VCI.K
. w I
a:
~
I 0 I
~
SIICA
a:
I
VOP
0 -I
u I
I I I z
ADORE SS/CONTROL
BUS t6 bit
w I
Dr
-'.
0
lJ.
I !J m -I
0
Cl
0
I/'--
g a: z I
OJ
DATA BUS 16 bit)
---
u I
ID
I',,--
I
,c
I I
PSG
AGB/SYNC
I
. >
~-
.___ I
I
C.SYNC
-I
Va50Hz
::, M
,._~
H•lS-.63KHtl
N
a.
I
!,_.--~
u
~ -m
.,_,
..
> 0
> 0
fMIX
>
'---
3b
--
~
IUJ
-w
a ' -z
i:
>
I. -D 0
'
11/
-- Met K
,
:c .
...
'
:c
0
o..i
0..
...
-
A.
A.
:z:
I , 0 +'
EDCK
~ ..
p.
' --, u
..
PORT
1,,,,,, TCLK
HIX
w
L..-
w 0
I I
BUS
I::: VCLK
:c
:c
RAM
I/0
1 .___
,,
~
64KB
ARBITER
. .
OIU
• n,
EDCK:
l:J.3MHZ
~
I\
l!OLUHE
'£.
l
CONT,
I I
..
,.._
..
:c
0
,._
"!
Ill
0 I
,._
0 -
ICU(
..
0 I
YCI K -->
OJ
' N
cl(
-□
,,
w ' 0
N N
;l
u
a:
~~
tnr
N
'
~
a:
0
. - :>
...
-· 0
rJ
AGORESS/CONTAOL BUS
IB
bit
0
a:
u 8 u
1--
u
Ill
w ?
<u-
0
0..
~
o+~
..
::::,
5 ...
' 0
a.
1/l--
Z 0
..
DATA BUS
B bltT
:> u
CJ
u
I\,-
0 w u
Ill
..
a:
~
' -
:c
0
...
._____ ' ' .J
[ l )
RAM
I l I
BKB
CN5
CNG
CN4
'
~
-------------------
-----------
L---------
-------------------------------------
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F;1/'IOL PAOl
2 PLAYER
HOT us:;:o
Option
I-lode ■ Only S~A Enterprises, Ltd.
TV
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R & D 3 Dept.
r/4/r•

MEGA DRIVE
PAL-G (GERMANY)
ASSEMBLY
DRAWING

1EGA D.RIVE FOR PAL-G
iENERAL REFERENCE NUMBER LI ST
tEF NO. PART NO. DESCRIPTION
V4 QTY V6.5
--------------------------------------------------------------------------------------------------------------
l O1 610-5077-01
ASSY TOP CASE M5 EUROPE
1
610-5077-0lA
ASSY TOP CASE M5 EUROPE VA
(1)
610-5283
ASSY TOP CASE M5 VA EUROPE
(1)
l O2
253-6310-01
BOTTOM CASE M5 PAL-I
1
253-6264
LID M5
1
253-6310-0lA
BOTTOM CASE M5 PAL-I
VA6. 5 1
253-6264
LID M5
1
0 1
837-7459
IC BD M5 VA4 PAL-G
1
837-8779
IC BD M5 VA6.5 PAL-G
1
02 839-0199
ASSY SUB BOARD M5
1 1
03 839-0262
ASSY SUB BOARD3 M5
1 1
10 1 012-0310
TAPSCRPH3*10
6 6
10 2
012-0308
TAP SCR PH 3*8
8 8
: 0 3
029-0227
DELTITE SCR PH 3*6
1 1
: 0 4
029-0097
TAP SCR PH 3* 12 BLK
5 5
: 0 5
250-5161
PLATE NUT MD
1 1
l O1 250-5135
SHIELD PLATE M5 TOP
1 1
l O2 250-5136
SH I ELD PLATE M5 BOTTOM
1 1
l O3 253-6298
SOP CARD EDGE COVER
1 1

301
103
102
101
I 205
«
'ri
303
I
302
002

ASSEMBLY LIST roR MEGA DRIVE PAL-G
INDEX
1001 TOPCASEASSEMBLYl
1002 TOP CASE ASSEMBLY 2
1003 SHIELD PLATE TOP ASSEMBLY
1004 MAIN BOARD ASSEMBLY

"ARTS LI ST FOR MEGA DRIVE PAL-G
1001 TOP CASE ASSEMBLY 1
REF NO. PART NO.
2 0 1
012-0310
DESCRIPTION
TAPSCRPH3*10
QTY
6