Mephisto

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1 Introduction

This pinball machine was manufactured in 1987 by a Spanish company, Universal de Desarrollos Electronics, S.A. Their various trade names were Unidesa/Cirsa/Stargame.

It is horror-themed and has both 2 and 3-ball multiball.

The boardset is unique and the playfield parts are as well.

The manual for the game is in Spanish. The available scans of the manual available on the internet (see the manual on IPDB) are not good quality and there are some mistakes (to be pointed out below).

2 Technical Info

There are 4 major boards used in this game:

  • Power Feed Board (Carta Alimentacion)
  • Solenoid Driver Board (Carta Potencia)
  • CPU Board (Carta Control)
  • Sound Board (Carta Sonido)

The game used LED displays and there are 4 displays for the players and a credit/match display. As a result, there is not high voltage generation in the machine.

The basic architecture of the game's electronics is:

  • The Transformer sends various A/C voltages to the Power Feed Board
  • The Power Feed Board turns most of these A/C voltages to D/C voltages through the use of 4 bridge rectifiers and sends those voltages to other boards in the game. Also the Power Feed Board holds most of the fuses on the game (the only exception being the main fuse, which is located in the bottom of the cabinet, next to the transformer).
  • The Solenoid Driver Board is responsible for driving the solenoids (actually coils and flashers) in the game.
  • The CPU Board runs the game code, and is responsible for driving the feature lamps and handling switches
  • The Sound Board generates sound and speech

More t.b.s.

3 Charts

3.1 Fuse Chart

Fuse Type Usage Location
F1 7A SB GI Power Feed Board
F2 7A SB GI Power Feed Board
F3 5A SB Flippers Power Feed Board
F4 4A SB Solenoids Power Feed Board
F5 2A SB Audio Power Feed Board
F6 7A SB Feature Lamps Power Feed Board
F7 7A SB A/C Leg 1 to PR4 (used to generate 12VDC/5VDC) Power Feed Board
F8 7A SB A/C Leg 2 to PR4 (used to generate 12VDC/5VDC) Power Feed Board
X 2A SB Main Cabinet

3.2 Lamp Chart

Feature Lamp Map


Lamp Description
1 Top Lane (center)
2 Top Lane (right)
3 Extra Ball
4 Not used
5 Not used
6 Not used
7 Multiball Arrow 1 (top)
8 Multiball Arrow 2
9 Multiball Arrow 3
10 Multiball Arrow 4
11 Pop Bumper (top)
12 Pop Bumper (bottom)
13 Pop Bumper (right)
14 Ramp Arrow (right)
15 Left Ramp Arrow 1 (top)
16 Left Ramp Arrow 2 (middle)
17 Left Ramp Arrow 3 (bottom)
18 Drop Target Bonus (top)
19 Drop Target Bonus (middle)
20 Bonus (10K)
21 Bonus (9K)
22 Bonus (8K)
23 Bonus (7K)
24 Bonus (6K)
25 Bonus (5K)
26 Bonus (4K)
27 Bonus (3K)
28 Bonus (2K)
29 Bonus (1K)
30 Standup Target (top)
31 Standup Target (middle)
32 Standup Target (bottom)
33 Left Inlane
34 Not used
35 Right Inlane
36 Right Outlane/Gate
37 X5
38 X4
39 X3
40 Left Special
41 Right Special
42 Shoot Again
43 Shooter Lane (1K pts)
44 Shooter Lane (15K pts)
45 Shooter Lane (30K pts)
46 Backglass (Game Over)
47 X2
48 Bonus (30K)
49 Bonus (20K)
50 Multiball Arrow 5
51 Backglass (High Score)
52 Extra Ball
53 Drop Target Bonus (bottom)
54 Multiball Arrow 6 (bottom)
55 Top Lane (left)
56 Backglass "O"
57 Backglass "T"
58 Backglass "S"
59 Backglass "I"
60 Backglass "H"
61 Backglass "P"
62 Backglass "E"
63 Backglass "M"


Col 0

J3.2-10
Brn-Red
TR9

Col 1

J3.2-9
Grn-Red
TR10

Col 2

J3.2-8
Brn-Yel
TR11

Col 3

J3.2-1
Vio-Red
TR12

Col 4

J3.2-3
Brn-Grn
TR13

Col 5

J3.2-2
Orn-Yel
TR14

Col 6

J3.2-4
Vio-Grn
TR15

Col

J3.2-6
Yel-Blk
TR16

Row 0
J3.1-1
Red-Brn
TR1
42
1
48
52
46
51
4
5
Row 1
J3.1-2
Red-Yel
TR2
54
2
49
3
7
0
36
6
Row 2
J3.1-4
Red-Blk
TR3
50
25
20
15
8
14
35
34
Row 3
J3.1-6
Red-Gry
TR4
10
26
21
16
30
37
53
40
Row 4
J3.1-5
Red-Vio
TR5
9
27
22
17
31
38
19
41
Row 5
J3.1-8
Red-Blu
TR6
43
28
23
44
32
39
18
45
Row 6
J3.1-9
Yel-Vio
TR7
11
29
24
12
33
47
13
55
Row 7
J3.1-10
Red-Grn
TR8
56
57
58
59
60
61
62
63

3.3 Solenoids

Solenoid Map


Sol. No Solenoid description Connector Wire Color Coil/Flasher
1 not used
2 Top Pop Bumper J11-3 Yel-Vio Coil 1000/45
3 Right Pop Bumper J11-2 Yel-Vio Coil 1000/45
4 Bottom Pop Bumper J11-5 Yel-Vio Coil 1000/45
5 not used
6 not used
7 not used
8 Left Eject Hole J12-7 Wht-Gry Coil 1300/26
9 Center Eject Hole J12-6 Red-Grn Coil 1300/26
10 Diverter Release J12-3 Yel-Blk Coil 1400/20
11 Ramp Diverter J12-2 Brn-Vio Coil 1300/26
12 3-bank Drop Target Reset J12-4 Brn-Yel Coil 1450/50
13 Single Drop Target Reset J12-5 Grn-Blk Coil 1200/40
14 Trough Eject J12-10 Red-Blk Coil 1300/26
15 Right Eject Hole J12-9 Brn-Grn Coil 1300/26
16 Flasher (skull) J13-8 Brn-Red Flasher 12v 3w (2x)
17 Flasher (top left) J13-6 Red-Yel Flasher 12v 15w (1x)
18 Flasher (eyes on BG) J13-3 Vio-Blu Flasher 12v 15w (2x)
19 Flasher (bat) J13-2 Red-Blu Flasher 12v 15w (3x)
20 Flasher (sun on BG) J13-4 Grn-Red Flasher 12v 15w (2x)
21 Flasher (top right) J13-5 Wht-Blu Flasher 12v 15w (1x)
22 Knocker J13-10 Wht-Grn Coil 1000/35
23 Gate J13-9 Yel-Red Coil 4000/16

3.4 Switch Matrix

Switch Map



Col 0

J4.1-10
Wht
IC30

Col 1

J4.1-9
Wht-Yel
IC30

Col 2

J4.1-8
Wht-Blk
IC30

Col 3

J4.1-7
Wht-Gry
IC30

Col 4

J4.1-6
Wht-Vio
IC30

Col 5

J4.1-5
Wht-Blu
IC30

Col 6

J4.1-4
Wht-Red
IC30

Row 0
J4.2-6
Grn-Brn
IC31
05
11
17
23
29
35
41
Row 1
J4.2-5
Grn-Yel
IC31
04
10
16
22
28
34
40
Row 2
J4.2-4
Grn-Blk
IC31
03
09
15
21
27
33
39
Row 3
J4.2-3
Grn-Gry
IC31
02
08
14
20
26
32
38
Row 4
J4.2-2
Grn-Vio
IC31
01
07
13
19
25
31
37
Row 5
J4.2-1
Grn-Blu
IC31
00
06
12
18
24
30
36

3.5 Connection Charts

The following charts show the connections on each of the boards.

3.5.1 Power Feed Board

Conn-Pin Purpose Wire Color To/From
J25-1 GND 9.3VAC Wht From Transformer
J25-2
J25-3 9.3VAC Wht-Blk From Transformer
J25-4
J25-5
J25-6 9.3VAC Wht-Blk From Transformer
J25-7
J25-8 16VAC Grn-Wht From Transformer
J25-9
J25-10 GND 16VAC Yel-Red From Transformer
Conn-Pin Purpose Wire Color To/From
J26-1 16VAC (audio) Wht-Vio From Transformer
J26-2 GND 16VAC (audio) Gry From Transformer
J26-3 Earth GND Yel-Grn From Transformer
J26-4 GND 50VAC (coils) Blk-Wht From Transformer
J26-5
J26-6 50VAC Red From Transformer
J26-7
J26-8 KEY
J26-9 50VAC (flippers Yel From Transformer
J26-10
Conn-Pin Purpose Wire Color To/From
J27-1 GND 50VAC (flippers) Yel-Brn From Transformer
J27-2
J27-3
J27-4
J27-5 GND 6.3VAC Brn-Grn From Transformer
J27-6 GND 6.3VAC Brn-Grn From Transformer
J27-7 KEY
J27-8
J27-9 GND 6.3VAC Gry-Blk From Transformer
J27-10 GND 6.3VAC Gry-Blk From Transformer
Conn-Pin Purpose Wire Color To/From
J28-1 16V Wht-Blk To Big Cap
J28-2 GND 16V Brn-Grn To Big Cap
Conn-Pin Purpose Wire Color To/From
J29-1 V GI Gry-Blk To GI via F1-1
J29-2 V GI Gry-Blk To GI via F1-2
J29-3 V GI Gry-Blk To GI via B1-5
J29-4 V GI Gry-Blk To GI via B1-6
J29-5 GND GI Brn-Grn To GI via F1-3
J29-6 GND GI Brn-Grn To GI via F1-4
J29-7 GND GI Brn-Grn To GI via B1-7
J29-8 GND GI Brn-Grn To GI via B1-8
J29-9 KEY
J29-10 GND Flipper (left) Gry-Blk To Left Flipper via B1-9 & R1-1
Conn-Pin Purpose Wire Color To/From
J30-1 GND Flipper (right) Blu-Vio To Right Flipper via B1-10 & R1-2
J30-2
J30-3 50VDC Flipper Yel To Flipper via B1-3
J30-4 50VDC Flipper Yel To Flipper via B1-4
J30-5
J30-6 50VDC (coils) Red To Coils via F1-8 & direct
J30-7 50VDC (coils) Red To Coils via B1-1 & B1-2
Conn-Pin Purpose Wire Color To/From
J31-1
J31-2 GND 50VDC (coils) Orn To J10-4
J31-3
J31-4 GND +12VDC (audio) Wht-Vio To J1.2-2
J31-5 +12VDC (audio) Gry to J1.2-1 & J10-3
J31-6 KEY
J31-7
J31-8 GND Feature Lamps Brn-Grn To J1.2-7
J31-9
J31-10 Feature Lamps Gry-Blk To J1.2-6
Conn-Pin Purpose Wire Color To/From
J32-1
J32-2 +12VDC Wht-Blk To J1.1-1
J32-3
J32-4 -12VDC Wht To J1.2-5
J32-5 KEY
J32-6 +5VDC Yel To J1.1-7
J32-7
J32-8 GND +5VDC Vio To J1.1-6
Conn-Pin Purpose Wire Color To/From
J33-1 Inh. Flippers Red-Wht To J1.1-3
J33-2 KEY
J33-3 Inh. GI Blu-Red To J1.1-2
J33-4 Inh. Coils Blk-Wht To J10-1
J33-5 Inh. Feature Lamps Yel-Red To J1.1-4

3.5.2 Solenoid Driver Board

t.b.s.

3.5.3 CPU Board

t.b.s.

3.5.4 Sound Board

t.b.s.



Return to Unidesa/Cirsa/Stargame page.