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.

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

	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

	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.