Difference between revisions of "Sega Mega Drive/Genesis Hardware"

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(→‎Model 1)
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Sega Mega Drive Motherboard revisions
 
Sega Mega Drive Motherboard revisions
 
==Model 1==
 
==Model 1==
−
===PAL Model 1 M5===
+
===M5 PAL===
  
 
[[File:Genesis_pal_model1_M5.jpg|thumb|150px|PAL model 1 M5]]
 
[[File:Genesis_pal_model1_M5.jpg|thumb|150px|PAL model 1 M5]]
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−
===Model 1 VA1===
+
===VA1===
 
[[File:IC_BD_M5_VA1.jpg|thumb|150px]]Board label: IC BD M5 VA1
 
[[File:IC_BD_M5_VA1.jpg|thumb|150px]]Board label: IC BD M5 VA1
  
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−
===NTSC Model 1 VA2===
+
===VA2 NTSC===
 
[[File:IC_BD_M5_USA_VA2.jpg|thumb|150px|NTSC Model 1 VA2]]
 
[[File:IC_BD_M5_USA_VA2.jpg|thumb|150px|NTSC Model 1 VA2]]
 
Board label: IC BD M5 USA VA2
 
Board label: IC BD M5 USA VA2
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−
===PAL Model 1 VA4===
+
===VA3===
 +
===VA4 PAL===
 
Board label: IC BD M5 PAL VA4
 
Board label: IC BD M5 PAL VA4
  
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−
===NTSC Model 1 VA7===
+
===VA5===
 +
===VA6===
 +
===VA6.8===
 +
===VA7 NTSC===
 
[[File:PC_BD_M5_USA_VA7.jpg|thumb|150px|NTSC Model 1 VA7]]
 
[[File:PC_BD_M5_USA_VA7.jpg|thumb|150px|NTSC Model 1 VA7]]
  
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==Model 2==
 
==Model 2==
 +
===VA0 PAL===
  
−
===NTSC Model 2 VA1===
+
===VA1 NTSC===
  
 
[[File:Model2_va1_motherboard.jpg|thumb|150px|NTSC Model 2 VA1]]
 
[[File:Model2_va1_motherboard.jpg|thumb|150px|NTSC Model 2 VA1]]
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| IC12 || ? || ? || Voltage regulator || <center>-</center>
 
| IC12 || ? || ? || Voltage regulator || <center>-</center>
 
|}
 
|}
 +
===VA1 ASIA===
  
−
===PAL Model 2 VA1.8===
+
===VA1.8 NTSC===
 +
 
 +
===VA1.8 PAL===
  
 
[[File:Genesis_pal_model2_VA1.8.jpg|thumb|150px|PAL model 2 VA1.8]]
 
[[File:Genesis_pal_model2_VA1.8.jpg|thumb|150px|PAL model 2 VA1.8]]
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|}
 
|}
  
−
==Model 3==
 
  
 +
===VA1.8 ASIA===
 +
===VA2===
 +
===VA2.3===
 +
===VA3===
 +
===VA4===
  
 +
==Model 3==
 +
===VA1===
 +
===VA2===
  
  

Revision as of 10:09, 21 May 2013

Sega Mega Drive Motherboard revisions

Model 1

M5 PAL

PAL model 1 M5

Board label: IC BD M5 PAL

PAL Model 1 M5 IC's
IC# Brand Name Description Documentation
IC1 Hitachi HD68HC000P8 8MHz Processor
-
IC2/IC3 Motorola MCM51L832ASP10 CMOS 1024 BIT SRAM
-
IC4 SEGA 315-5433 ?
-
IC5 SEGA 315-5313A ?
-
IC6 Zilog Z0840004PSC Zilog Z80 8-bit coprocessor
-
IC7 Fujitsu MB8464A-10LL-SK CMOS 65,536 SRAM
-
IC8 ? ? ?
-
IC9/IC10 ? ? ?
-
IC11 Yamaha YM2612 Audio
-
IC12 SONY CXA1034P Amplifier
-
IC13 SONY CXA1145P Video
-
IC14 ? ? ?
-


VA1

IC BD M5 VA1.jpg

Board label: IC BD M5 VA1

Model 1 VA1 IC's
IC# Brand Name Description Documentation
IC1 Signetics SCN68000C8N64 8MHz Processor
-
IC2/IC3 Toshiba TC51832SPL-12 CMOS 256K (32K x 8) Pseudo-SRAM, 12ns
-
IC4 SEGA 315-5308 I/O chip
-
IC5 SEGA 315-5309 I/O chip
-
IC6 Zilog Z0840004PSC Zilog Z80 8-bit coprocessor
-
IC7 NEC D4168C-15-SG 64K (8,192 x 8-BIT) NMOS XRAM -
IC8 SEGA 315-5313 (Yamaha YM7101) VDP
-
IC9/IC10 ? ? Video 256K (64K x 4) DRAM
-
IC11 Yamaha YM2612 frequency modulation synthesizer
-
IC12 Sony CXA1034 Headphone amp
-
IC13 ? ? ?
-
IC14 ? ? ?
-
IC15 ? ? ?
-
IC16 Sega 315-5339 (DIP16) I/O chip
-


VA2 NTSC

NTSC Model 1 VA2

Board label: IC BD M5 USA VA2

NTSC Model 1 VA2 IC's
IC# Brand Name Description Documentation
IC1 Signetics SCN68000C8N64 8MHz Processor
-
IC2/IC3 Toshiba TC51832SPL-12 CMOS 256K (32K x 8) Pseudo-SRAM, 12ns
-
IC4 SEGA 315-5308 I/O chip
-
IC5 SEGA 315-5309 I/O chip
-
IC6 Zilog Z0840004PSC Zilog Z80 8-bit coprocessor
-
IC7 NEC D4168C-15 8,192 x 8-BIT NMOS XRAM, 150 ns -
IC8 SEGA 315-5313 (Yamaha YM7101) VDP
-
IC9/IC10 ? ? Video 256K (64K x 4) DRAM
-
IC11 Yamaha YM2612 frequency modulation synthesizer
-
IC12 Sony CXA1034 Headphone amp
-
IC13 Sony CXA1145 Video encoder
-
IC14 ? ? ?
-
IC15 ? ? ?
-
IC16 Sega 315-5345 (DIP16) I/O chip
-


VA3

VA4 PAL

Board label: IC BD M5 PAL VA4

PAL Model 1 VA4 IC's
IC# Brand Name Description Documentation
IC1 Signetics SCN68000C8N64 8MHz Processor
-
IC2/IC3 Toshiba TC51832SPL-12 CMOS 256K (32K x 8) Pseudo-SRAM, 12ns
-
IC4 SEGA ? I/O chip
-
IC5 SEGA ? I/O chip
-
IC6 Zilog Z0840004PSC Zilog Z80 8-bit coprocessor
-
IC7 NEC D4168C-15 8,192 x 8-BIT NMOS XRAM, 150 ns -
IC8 ? ? ?
-
IC9/IC10 ? ? ?
-
IC11 Yamaha YM2612 frequency modulation synthesizer
-
IC12 ? ? ?
-
IC13 ? ? ?
-
IC14 ? ? ?
-


VA5

VA6

VA6.8

VA7 NTSC

NTSC Model 1 VA7

Board label: PC BD M5 USA VA7

NTSC Model 1 VA7 IC's
IC# Brand Name Description Documentation
IC1 Motorola MC68HC000FN8 Processor
-
IC2/IC3 Sharp LH5P832N-12 CMOS 256K (32K x 8) Pseudo-Static RAM
-
IC4 Zilog Z0840004PSC Zilog Z80 8-bit coprocessor
-
IC5 Sanyo LC3564PM 64K (8192 words x 8 bits) SRAM
-
IC6 SEGA 315-5487-01 I/O, Bus arbiter, VDP, ym2612, TMSS
-
IC7/IC8 Hitachi HM53461ZP-12SG 65,536-WORDx4-bit Multiport CMOS video ram HERE
IC9/IC10 Rohm BA10324AF Op-amp
HERE
IC11 SONY CXA1145M Video
-
IC12 ? TA7805S Voltage regulator
-

Model 2

VA0 PAL

VA1 NTSC

NTSC Model 2 VA1

Board label: PC BD MD2 VA1 USA

NTSC Model 2 VA1 IC's
IC# Brand Name Description Documentation
IC1 Motorola MC68HC000FN8 Processor
-
IC2 Toshiba TC511632FL-10 65,536 Word x 16 Bit Dynamic Ram
-
IC3 ? ? ?
-
IC4 SEGA 315-5678 (?) ?
-
IC5 Fujitsu M88464A-10L 8K Words x 8-Bit (64K) CMOS SRAM Low Power
-
IC6 SEGA 315-5660 ?
-
IC7 OKI M54C864-80 65,536-Word x 8-Bit Multiport DRAM
-
IC8 ? ? ?
-
IC9/IC10 ? LM324 Low power quad op amps
-
IC11 SONY CXA1145M Video (RGB Encoder) HERE
IC12 ? ? Voltage regulator
-

VA1 ASIA

VA1.8 NTSC

VA1.8 PAL

PAL model 2 VA1.8

Board label: PC BD MD2 VA1.8 PAL

PAL Model 2 VA1.8 IC's
IC# Brand Name Description Documentation
IC1 Motorola MC68HC000FN8 Processor
-
IC2 ? 651632DFP-15 SOP 40W
-
IC3 ? ? ?
-
IC4 Zilog Z84C0006FEC Zilog Z80 8-bit coprocessor
-
IC5 ? ? ?
-
IC6 SEGA 315-5660 ?
-
IC7 Hitachi HM53861J-8 RAM chip
-
IC8 ? ? ?
-
IC9/IC10 Rohm BA10324AF ground sense quad op-amp
-
IC11 Fujitsu MB3514 RGB Encoder HERE
IC12 ? ? Voltage regulator
-


VA1.8 ASIA

VA2

VA2.3

VA3

VA4

Model 3

VA1

VA2

See Also

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