Difference between revisions of "PCB Repair Logs Stargate"

From Aussie Arcade Wiki
Jump to navigationJump to search
(Created page with "==Stargate== <p><table class="infobox vevent" style="width:22em;" cellspacing="5"> <caption class="summary" style=""><b>Stargate</b></caption> <tr class="> <td colspan="2" cl...")
 
m
 
(6 intermediate revisions by the same user not shown)
Line 4: Line 4:
<caption class="summary" style=""><b>Stargate</b></caption>
<caption class="summary" style=""><b>Stargate</b></caption>
<tr class=">
<tr class=">
<td colspan="2" class="" style="text-align:center;">[[Image:Exed Exes Marquee.png|200px]]</td>
<td colspan="2" class="" style="text-align:center;">[[Image:marquee_stargate.png|200px]]</td>
</tr>
<tr class="">
<th scope="row" style="text-align:left; white-space: nowrap;">Manufacturer</th>
<td class="" style="">[[PCB_Manufacturers_Williams|Williams]]</td>
</tr>
<tr class="">
<th scope="row" style="text-align:left; white-space: nowrap;">Year</th>
<td class="" style="">1981</td>
</tr>
</tr>
<tr class="">
<tr class="">
Line 18: Line 26:
'''Repairer:''' [http://www.aussiearcade.com.au/member.php/1-Arcade-King Arcade King]<br>
'''Repairer:''' [http://www.aussiearcade.com.au/member.php/1-Arcade-King Arcade King]<br>
'''Forum Thread:''' [http://www.aussiearcade.com.au/showthread.php/4768-Williams Stargate PCB Repair]<br>
'''Forum Thread:''' [http://www.aussiearcade.com.au/showthread.php/4768-Williams Stargate PCB Repair]<br>
<br>
=== Stargate CPU board 5770-09656-00 ===
'''Problem:''' When I first turned the pcb on there was rubbish on the screen, only about 1/3 of the screen from the center was showing, some sort of vertical collapse.<br>
'''Fix:''' Bad 7411@3A
'''Problem:''' From what I could tell from the digital display on the rom board the game was booting without errors then resetting, as above all that was on the screen was a garbled mess.<br>
'''Fix:''' cut a long story short the output on pin 3 on a 7432 @ 6E
'''Problem:''' Game would boot and get up to the "INITIAL TESTS INDICATE ALL SYSTEMS GO" then reset.<br>
'''Fix:''' Shit of a fault took me awhile to track down. Bad 5514 Cmos Ram @ 1C
Other things done to PCB: Replaced CPU socket, Cleaned interconnect cable pins, would have to sit there playing with them to get it to boot.
Things to do: Needs the BS.BA inversion hack done so this pcb can run Robotron, Joust etc.<br>
<br>
=== CPU board 5770-09656-00 REV B ===
'''Problem:''' Missing Red and Green.<br>
'''Fix:''' Missing 2 2N4403 transistors Q1 and Q2, substituted equivalent pair of 2N3906 I found on a scrap Atari 2600.
'''Problem:''' Game boots with
"HIGH SCORE TABLE RESET
BOOKKEEPING TOTALS CLEARED
ADJUSTMENT FAILURE ETC ETC"
'''Fix:''' Another missing transistor Q13 2N4401 substituted with equivalent 2N3904 pulled off scap Atari 2600, Tranny is connected to the CE of the CMOS.
<br>[[PCB_Repair_Index|Back to PCB Repair Index]]

Latest revision as of 08:23, 7 February 2013

Stargate

Stargate
Marquee stargate.png
Manufacturer Williams
Year 1981
PCB Image Reserved
Pin Out Reserved

Repairer: Arcade King
Forum Thread: Stargate PCB Repair

Stargate CPU board 5770-09656-00

Problem: When I first turned the pcb on there was rubbish on the screen, only about 1/3 of the screen from the center was showing, some sort of vertical collapse.
Fix: Bad 7411@3A

Problem: From what I could tell from the digital display on the rom board the game was booting without errors then resetting, as above all that was on the screen was a garbled mess.
Fix: cut a long story short the output on pin 3 on a 7432 @ 6E

Problem: Game would boot and get up to the "INITIAL TESTS INDICATE ALL SYSTEMS GO" then reset.
Fix: Shit of a fault took me awhile to track down. Bad 5514 Cmos Ram @ 1C

Other things done to PCB: Replaced CPU socket, Cleaned interconnect cable pins, would have to sit there playing with them to get it to boot. Things to do: Needs the BS.BA inversion hack done so this pcb can run Robotron, Joust etc.

CPU board 5770-09656-00 REV B

Problem: Missing Red and Green.
Fix: Missing 2 2N4403 transistors Q1 and Q2, substituted equivalent pair of 2N3906 I found on a scrap Atari 2600.

Problem: Game boots with "HIGH SCORE TABLE RESET BOOKKEEPING TOTALS CLEARED ADJUSTMENT FAILURE ETC ETC"

Fix: Another missing transistor Q13 2N4401 substituted with equivalent 2N3904 pulled off scap Atari 2600, Tranny is connected to the CE of the CMOS.



Back to PCB Repair Index