Sega MK - 80200-50 Service Manual

llfliA" SERVICE MANUAL SEGA SATURN (PAL) NO. 013-1 ISSUED JUNE, 1995 CONTENTS 1. SPECIFICATIONS · · · · · · · · · · · · · · · · · · · · · · · · ·

6. CD DRIVE MAINTENANCE AND ADJUSTMENT 6-1. Maintenance of Pickup I) Checking the laser diode As the laser diode wears out, the RF level (ampl

Adjustment Preparation Apply markings to the positions of the variable resistors before adjustment. If the adjustment are out of the specifi

2 3 4 5 6 7. BLOCK DIAGRAM CLOCK! POWER SUPPLY BOARD /CN3 t+9V (CO DRIVE. FOR PLLlUSED FOR THE POWER SUPPLY +SV (VCC. AVCC2l USED FOR ALL CHIPS OTHER

8. SCHEMATIC DIAGRAMS 8-1. Schematic Diagram-1 [Main C.B-1/6) //~~r7~//~~~~r7-r~-r-rc~~r-------------~----~--------------------------·----~----~-----

1 2 3 4 5 6 8-2. Schematic Diagram-2 [Main C.B - 2/6] @ EXIIC IB YIIEO@ GD~~~~ ~~~~~--~---------------------------------------------------------------

8-3. Schematic Diagram-3 (Main C.B- 3/6] @ STSRES ~ ~~~ ® OOBUS 811 ~! ® lllUSCOHROL Ell ~ _,,... ~ ~~ g = o N @rnKI ~ ti:QK ~~~ BOO 6 ti:CO 801 I 8

8-4. Schematic Dlagram-4 [Main C.B-4/6) TRCl. 118 18 -118 1 ECAaJS IC3D 74l5245 CAl 2 10 80 18 r< IP43 ECAl Cl2 3 II 81 17 r< IF44 ECA2 CAJ 4 16

8-5. Schematic Diagram-5 [Main C.B - 5/6] ® ECAIIUS IB @ECIIIUS ~ ' .----...__!!__ AYCC2 vee CEll llo RISl 1«11 @IEEII lJS8) svec e48 1«11 USED 1

1 2 3 4 5 6 8-6. Schematic Diagram-& [Main C.B - 6/6) @ XIMTA @ O.AI.IIIOIIf @es @MillS <D AllJSIDIIR(l ®AIBJS @(~! 55111111 <DES .!!!. ..!!

8-7. Schematic Dlagram-7 [SH-1 C.B] RIIO vee 4 1K _A RIDS '--' I~ TPJ r-----~--------------------------------------------~~~_,--~ r--------

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the instructions below when servici

9. CIRCUIT BOARD DIAGRAMS 9-1. Main Circuit Board 1 2 3 4 5 6 A ~=--~·""-j-...--.• ... -· ~ .. __ ,_ D 64. Ct39 837-11493 IC BO SATURN 17

TPH C70 D A B c 29-Cl36 CJ D E ,0· 0 OD ~~~Ill"' TI'N TPte !TI' •• Tl'a7 2 3 4 5 6 F G H -30-

9-2. SH-1 Circuit Board 1 2 3 4 5 6 A B c 0 -31-11. PARTS SPECIFICATIC•It.JS IC1/2 IC H06417095F28 QFP HITACHI Parts No.: 315-0922A •Top View 108 109

No. 1/0 Pin Name Function 41 1/0 A9 Address bus 42 - YSS6 Power supply (OV) 43 A10 44 All 45 I/0 A12 Address bus 46 A13 47 Al4 48 - YCC6 Power supply

No. 1/0 Pin Name Function 104 -VCC(PLL)I2 Power supply (5V) of built-in PLL 105 I MDO Operation mode pin 106 -VSS(PLL)I5 Power supply (OV) of built-in

• Block Diagram ~ MULT (/) ::l co (/) (/) LU CPU v--a: (/) -~ CACHE TAG 1:==1 §_~ ::l co <( i LU-_/ 1-::r: <( A C) 0 <( LU C) ::r: EXCEPTION

IC3/4/11 4-Mbit SDRAM IC HM5241605TT-17 TSOP Parts No.: 315-0928-17 IC UPD4504161 GS-A 12 TSOP Parts No.: 315-1022-12 • Top View & Pin Layout 1/

ICS SCU {Custom Gate Array) IC CUSTOM CHIP SCU QFP Pans No.: 315-5688 •Top View 52 53 • Description No. 1/0 I -2 1!0 3 1/0 4 1/0 5 1/0 6 I/0 7 I/0 8

No. 1/0 Pin Name Function 23 0 AA5 A-bus address bit 5 24 0 AA6 A-bus address bit 6 25 0 AA7 A-bus address bit 7 26 0 AA8 A-bus address bit 8 27 -VS

No. I 1/0 Pin Name Functior:. 85 I I/0 BOIS B-bus address/data bit 15 86 I IROL Light pen interrupt 87 I IRQV VDP2•V blank interrupt 88 ' I IRQH

Audio CD: SATURN COMPATABILITY The normal audio Compact Disc is playable on the Saturn machine, and can be altered with all the effects of a modern Hi

No. 1/0 P.in"Name Function 147 1/0 COlO C-bus data bit I 0 148 1/0 COil C-bus data bit 11 149 - VOO +5V Power supply ISO 1/0 CDI2 C-bus data bi

IC6 DCC IC CUSTOM CHIP DCC QFP Parts No. : 315-5778 •Top View 80 81 100 •Pin Name No. 1/0 I I I 2 0 3 0 4 0 5 -6 0 7 0 8 I 0 9 0 10 0 II 0 12 0 13 0

IC7 IPL ROM OS SATURN IPL-ROM PAL DIP Parts No.: EPR-17933 Parts No.: MPR-17933 • Top View & Pin Layout 010 03 011 ICS BACKUP RAM AS AS A10 A11

IC9 SMPC IC CUSTOM CHIP SMPC QFP Parts No.: 315-5744 •Top View 64 52 19 20 32 • Description No. 1/0 Name 1 R70 -2 R71 3 R72 1!0 4 R73 5 R50 6 R51 I

IC10 VDP1 IC CUSTOM CHIP VDP1 QFP IC CUSTOM CHIP VDP1 S QFP Parts No. : 315-5689 Parts No. : 315-5883 •Top View 126 127 I I I I • Description No. I

No. I 110 Name Function 4! ! 0 VBUS15 Address/data bus (Syscon) 42 NC Not connected. -43 NC 44 FOAO 45 0 FOAl Address bus (FBO) 46 FOA2 47 I -VSS

No. 1/0 N~me Function 105 - VSS Ground for 1/0 pin 106 0 FICLK Clock (FBI) 107 0 FICSN Chip select (FBI) 108 0 FIWEN Write enable (FBI) 109 0 FIRASN R

IC12/13/15/16 IC UPD4502161G5-A12 TSOP NEC Parts No.: 315-0910-12 IC HM5221605TT-17 TSOP HITACHI Parts No.: 315-1017-17 IC LC382161T-17 TSOP SANYO Par

No. 1/0 Pin Name Function Row address (AX0-AX6, AX8) is detennined by A0-A8 level at the bank active command cycle CLK rising edge. (AX7 is don'

No. 1/0 "Pin Name Function 1 I 0 RBCS VRAM-B chip select 2 0 RBRAS VRAM-B row address strobe 3 0 RBCAS VRAM-B column address strobe r 4 0 RBWE V

Frame Buffering: A technique to maximise graphic display performance by letting the graphics processor chip "set aside" images it has

No. 1/0 Pin Name Function 64 1!0 EXBGI5 External input data bit I5 I Test input/output (in test mode) 65 1/0 EXBGI6 External input data bit I6/ Test i

No. I 1/0 Pin Name Function ~ 127 1/0 i RAD5 YRAM - A data bit 5 128 I 1/0 RAD6 YRAM - A data bit 6 129 i 110 I RAD7 YRAM - A data bit 7 I 130 I -I V

IC17 SCSP IC CUSTOM CHIP SCSP QFP YAMAHA Parts No. : 315-5687 •Top View 96 97 • Description No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

No. 1/0 .. Pin Name Functior,. 43 1!0 MDI Sound memo!)' data 44 MD2 45 -YDD Power supply (5Y) r 46 MD3 47 MD4 48 1/0 MD5 Sound memo!)' data

No. 1/0 Pin" Name Function 106 1!0 SCDI SCPU data bus 107 -vss GND 108 SCD2 109 SCD3 110 SCD4 Ill I/0 SCDS SCPU data bus 1!2 SCD6 1!3 SCD7 1!4 SC

IC18 SOUND CPU (68000) IC MC68ECOOOFN12 PLCC MOTOROLA Parts No.: 315-0941 •Top View 9 26 27 • Description No. I 1/0 Name I -GND 2 D4 3 I D3 4 l/0 D

IC19 Sound DRAM IC HM514270AJ-8 SOJ HITACHI Parts No. : 315-0777-80 IC UPD424270LE-70 SOJ NEC Parts No.: 315-0739-70 IC MN414270SJ-08 SOJ PANASONIC Pa

• Description No. 1/0 Name 1 NPSEL 2 I OOTSEL 3 SYSRES 4 TEST 5 I 0 I SCPCLK 6 EXTCLK 7 I oscsw 8 -DGND 9 0 OSOUT2 10 I I I OSIN2 I 11 -OSVDD2 12 0 P

• Description No. 1/0 1 -2 3 I 4 5 -6 I 7 I 8 0 9 -10 I I I -12 -13 -I4 -I5 0 16 0 I7 -18 -19 -20 0 21 22 0 23 24 -IC22 DAC IC TDA1386T SOP PHILIPS

• Block Diagram 6 DATA---t-"------1 SERIAL 5 WS DATA BCK 4 INPUT TEST1 TEST2 3 11 FILTCL 19 1 nF VOL 10 IJ. F'l RCONV1 4fs DIGITAL UP-S

1. SPECIFICATIONS Ratings Model MK - 80200-50 Power supply AC220-240 V 50/60 Hz Power consumption Approx. 20W Operating environment Temperature 5 °C t

IC23/24 74VHC04 IC 74VHC04 SOP 300MIL Parts No. : 314-0632 II Top View & Pin Layout IC25 IC S-80741AL-AS CHIP Parts No. : 313-5322 II Top View T

IC28 OCTAL BUS TRANSCEIVER IC 74ACT245 SOP 300MIL Parts No. : 314-0649 BTopView IC31/32 DRAM IC HM514260AJ-7 SOJ Parts No.: 315-0947-70 IC KM416C256

iC33 IC 74HC157 SOP Parts No. : 314-0634 II Top View IC34 IC UPC78L05T CHIP Parts No. : 313-5323 II Top View IC35 1. OUTPUT 2. COMMON (SHIELD PLATE

SH1 BOARD IC1 01 SHJ CPU " IC CUSTOM CHIP SHi QFP Parts No.: 315-5785 •Top View 112 28 29 • Description No. I 1/0 I i 2 3 I 4 s 6 7 I I/0 8 9 1

r-No. 1/0 Pin Name Function 50 0 CS2 CS2 output (GA, MPEG, other area 2 access) 51 0 CASL DRAM CASL output 52 vss Ground 53 l TIOCAO MPEG A data tran

SH1 BOARD IC1 02 DRAM IC HM514260AJ-8 SOJ IC HM514260AJ-7 SOJ Pans No.: 315-0947-80 Pans No.: 315-0947-70 • Top View & Pin Layout •Pin Name Vss

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 IR

II Description I 1/0 Name "Function No. I I I I MVPRT Video transparency control signal 2 MVR7 ' 3 MVR6 4 I MVR5 Video red color data 5 MVR

.. No. 110 Name Function 57 -vss Ground 58 SDLll 59 SDL12 60 I SDL13 SH uP subdata bus 61 SDL14 62 SDL15 63 - vee Power supply 64 -vss Ground 65 SA21

No. 1/0 Name Functfon 113 0 I SIRQL SH uP lower byte (A-BUS) interrupt signal 114 I 0 BCK Audio serial data sync clock 115 0 LRCK Audio L!R channel

2. IDENTIFYING PARTS 2-1. Front View of Console 2-3. Control pad OPEN Button Cartridge Slot ACCESS Light CONTROL PORT 1 CONTROL PORT 2 2-2. Back Vi

& PARTS LIST LODEDVIEW 11. EXP loded View ~ 54 11-1. Exp I / _ 6 4 6 A ', ' I I I 5 ...,."'""""'

11-2. Mechanical Parts List Ref. Parts No. Description Ref. Parts No. Oeser i pt ion No. No. 1 610-5862 ASSY TOP CASE SATURN EUR [1] 54 601-7815 STAEL

11 =3. Electrical Parts List .. Circuit Circuit Parts No. Description Parts No. Description No. No. 11-3-1. IC BD STATURN MAIN VAO USA IC31 315-0985-7

Circuit Parts No. Description Circuit Parts No. Description No. No. L6 180-5142 P. COIL CH I.P 1 OOUH LOH3C1 01 K04 C11 151-0265 CAP CER CP 0. 1UF 25V

-Circuit Parts No. Description Circuit Parts No. Desc r i pt ion No. No. C78 151-0265 CAP CER CP 0. lUF 25V ZF2125 CE4 151-0622 CAP CER CP 1UF 16V ZF3

Circuit I Parts No. Description Circuit I Parts No. Desc r i pt ion No. I No. i CE31 150-0464-01 CAP E CP 10UF 16V ECEV1CA100 R21 476-2222-J-10 RES CH

Circuit I Parts No. I Description Circuit Parts No. Desc r i pt ion No. , No. r R131 476-2103-J-10 RES CHIP 10KOHM 1/101'1 5% JP7 NOT USED NOT US

11-4. Accessories/Package List Circuit Parts No. I Description No. Parts No. Oeser i pt ion No. C121 150-0501 CAP E CP 47UF 6. 3V MV6. 3VC47M 1 610-58

II © 1995 Sega Enterprises, Ltd. Printed in Japan (/) 50630

3. ACCESSORIES Positive Side B Lithium Battery (CR2032) RGB Cable AC Cable [UK] AC Cable [SOE] AC Cable [AUSTRALIA] 4. IDENTIFICATIONS AND LOCATIONS

5. DISASSEMBLY PROCEDURE 5-1. Top Case Removal 1) Remove six screws ® and then the top case in the direction of the arrow. Fig. 5-1 5-2. CD Compartmen

5-5. Main Board Removal 1) Remove four screws ® holding the CD drive unit supports. 2) Remove five screws © and then the main board. Fig. 5-5 5·6.