Är det ärg som varit problemet skulle jag tro att det är likadant i kontakterna under batterierna. Däremot borde spelet starta upp ändå. Kan det kommit upp ärg i bandkabeln till höger??
Var det ram minnet dom lödde loss? Kan det blivit fel där??
Felkoder genom dioder och ljud:
CPU Flash Codes WPC-S and Prior.
D19 is labeled "blanking", D20 is labeled "diagnostic" and D21 is labeled "+5vdc".
At power-on, D19 and D21 should be ON. D20 should be OFF.
During normal operation, D19 should be OFF. D20 should be FLASHING. D21 should be ON.
Problem Power-On CPU D20 (diagnostic) Flash Codes:
blinks ONE time: U6 CPU game ROM bad
blinks TWO times: U8 CMOS RAM chip bad
blinks THREE times: U9 WPC custom chip bad
Sound Board Error Beeps pre WPC-DCS (WPC alpha-numeric, WPC dot-matrix and WPC fliptronics.
1 Beep: Sound board OK
2 Beeps: U9 sound ROM failure
3 Beeps: U18 sound ROM failure
4 Beeps: U15 sound ROM failure
5 Beeps: U14 sound ROM failure
Sound Board Error Beeps WPC-DCS and WPC-S.
1 Beep: Sound board OK
2 Beeps: U2 sound ROM failure
3 Beeps: U3 sound ROM failure
4 Beeps: U4 sound ROM failure
5 Beeps: U5 sound ROM failure
6 Beeps: U6 sound ROM failure
7 Beeps: U7 sound ROM failure
8 Beeps: U8 sound ROM failure
9 Beeps: U9 sound ROM failure
Driver Board Flash Codes WPC-S and Prior.
LED1: +12 volts DC switch matrix circuit, normally ON.
LED2: high/low line voltage sensor, normally ON.
LED3: high/low line voltage sensor, normally OFF.
LED4: +5 volts DC digital circuit, normally ON.
LED5: +20 volts DC flashlamp circuit, normally ON.
LED6: +18 volts DC lamp matrix circuit, normally ON.
LED7: +12 volts DC power circuit (motors, relays, etc), normally ON.
Läs på:
http://techniek.flipperwinkel.nl/wpc/index3.htmmate07
