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depet
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my sms1 chips
 Posted: Wed Aug 04, 1999 12:54 pm
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I thought it would be the right time opening my sms1
and wrote down everything I could see.
If you now ask yourself what that should be good for,
it's just I had some time and if someone cares he could
read and see if he has some significant differences(model-diffs)
backside(3 fields for stickers, 2 used):
1)
SEGA
SEGA MASTER SYSTEM
POWER BASE PAL-G
MODEL NO.:3005-18-A
RATING:DC 9V 850mA
USE SEGA AC ADAPTOR ONLY
SERIAL NO.: 40c 41940 (someone with 000 00001? :-)
SEGA ENTERPRISES LTD. MADE IN CHINA
2)
TUEV (that's a certificate in my country about not disturbing radio waves)
2
3)
4 slots, seems the sms could be placed on something bigger (cool)
inside:
the circuits on the board show me that card/cart/myst port have the same
connections (except some but I have no view to the other side of the board)
myst port is the thing that was discussed in a previous thread on dev,
its the very same as the male interface on a cart and it has all pins
(so you could stick two sms together :)
cardslot: 16 or 32 pins(not shure)
cartslot/myst: 2x25 pins
same connection: 10/11
special: 18 (connected to much stuff)
board:
SEGA
POWER BASE
PAL VA3
chips:
1)
ZiLOG
Z0840004PSC
SL0965
Z80 CPU
9035 C9
2)
SEGA
MPR-11459A W80
9032EX707
3, 4 and 5)
NEC JAPAN
D4168C-15-SG
9033X5007
6)
SEGA 9038K5
315-5237
7)
SONY
CXA1145P
JAPAN
OG46M
8)
SEGA 9032K7
315-52-46
oscillator:
TXC-2 OSC
53.203 MHz
. T.Q.C
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