Recent content by thiggenb

This chassis will drop-in and work as replacement for what chassis? Very limited info available about this model. Thanks

Thanks ED. I will stick to the Phillips 5101's. I didn't look at the specs on the chip very close. Tim

Has anyone used these before? Are they a good sub for the 5101? I'm considering trying to buy some in bulk. Thanks

Issue resolved, the wiring harness were plugged into the wrong position on the master display board. Thanks

Player 1 and 2 look perfect, player 3 and 4 is just garbage. Did swap 6821 and 74154 on mpu, no change. Swapped player 2 and 3 display harness, problem swapped with harness change. Have not starting troubleshooting yet. Anyone seen this before? Have attached pictures of the displays. Any...

Anyone have one? Thanks

Wrong thread, sorry. Anyone have one for sale? Thanks

After getting sinstar going w/o sound. I started to trouble shoot the missing sound. Probing around the sound board 6802 I found. Pin 4 (irq)stuck high Pin 34 (R/W)stuck high So, I replaced the 6802, fired backup with sound. Put it into test mode, it skips sound line 3 & 6. So my question...

Just to let everyone know I solved by problem on Sinistar. Location 4F (74153) must have been shorted internally. After replacing the game came right up.

I appreciate everyones response including Mark's. He gave me a clue, now I will do my homework and figure it out. I love a good challange. Just so everyone knows, I'm using a switching power supply. Rewired for 4164 dram, and have good voltages on all the drams. 8 & 9 read around 5.1 volts, and...

With all due respect, I'm willing to learn.

New to this code addresses, can you point me where to start looking for my issue?

replaced socket, still same issue. Just not understanding what is keeping A14 & A15 high.

Anyone want to take a stab at helping me? Got a 031 code on led, same as 131 on other williams. Still got 031 after doing all the following. Have done all normal things. Replaced all the dram and converted to 4164, reseated ics, checked voltages, reflowed header pins. Started down flow...