Difference between revisions of "PCB Repair Logs Black Dragon"

From Aussie Arcade Wiki
Jump to navigationJump to search
m
m
 
(4 intermediate revisions by the same user not shown)
Line 4: Line 4:
<caption class="summary" style=""><b>Black Dragon</b></caption>
<caption class="summary" style=""><b>Black Dragon</b></caption>
<tr class=">
<tr class=">
<td colspan="2" class="" style="text-align:center;">[[Image:marquee_black_dragon.jpg|200px]]</td>
<td colspan="2" class="" style="text-align:center;">[[Image:black_tiger_marquee.png|200px]]</td>
</tr>
<tr class="">
<th scope="row" style="text-align:left; white-space: nowrap;">Manufacturer</th>
<td class="" style="">[[PCB_Manufacturers_Capcom|Capcom]]</td>
</tr>
<tr class="">
<th scope="row" style="text-align:left; white-space: nowrap;">Year</th>
<td class="" style="">1988</td>
</tr>
</tr>
<tr class="">
<tr class="">
Line 12: Line 20:
<tr class="">
<tr class="">
<th scope="row" style="text-align:left; white-space: nowrap;">Pin Out</th>
<th scope="row" style="text-align:left; white-space: nowrap;">Pin Out</th>
<td class="" style="">Reserved</td>
<td class="" style="">[http://wiki.aussiearcade.com.au/index.php/File:Jamma_pinout.png Jamma Pinout]</td>
</tr>
</tr>
</table></p>
</table></p>

Latest revision as of 08:33, 5 February 2013

Black Dragon

Black Dragon
Black tiger marquee.png
Manufacturer Capcom
Year 1988
PCB Image Reserved
Pin Out Jamma Pinout

Repairer: Arcade King
Forum Thread: Black Dragon PCB Repair

Brad's Original Black Dragon (Tiger) PCB

PCB was missing 2 roms a 27512 @ 9B and 27256 @ 2N

The rom at 2N is for all the in game foreground text and 9B is part of the background.

First things first replaced the 2 missing roms.

Problem: Foreground text is all messed up.


Pcb repair black dragon 1.jpg

Fix: Pin 23 (A11) on rom 2N was stuck High. Tracked back to pin 2 of a 74ls253 @ 3N. Replacing the chip fixed the problem.

Problem: Character Graphics have faint horizontal lines through them.


Pcb repair black dragon 2.jpg

Fix: Faulty 74ls253 @ 2K. Both chips were TI (Texas Instruments) branded IC's


Pcb repair black dragon 3.jpg

Board now 100%



Back to PCB Repair Index