Hello,
I am Hellz Custodian brother and I have taken on the challenge of completing the work he had started on his machines.  I am sure as I go I will have many questions and it seems like you all are a great bunch of folks who can help out.  Thanks for your condolences as well it was great to see such a response from this community, he spoke of maaca often and really enjoyed working on his pins.
Here is my question.  On a Gottlieb system 1 Sinbad when I check the power coming into the board from connector A2-J1 on pins 6 and 7 I get 32volts AC.  I am metering with the black probe on pin 3 (ground/common) and the red in pin 6 or 7.  According to the guide at pinrepair.com I should be getting 69 right?  Am I testing this correctly?  I want to make sure the power supply is good and figured testing the input before the board would be a good place to start.

chief_rocker,

Welcome to MAACA.
We are glad to help whenever possible.

With regards to your GTB Sys1 power supply voltage measurement question,
there are only two AC leads from the transformer for the 69 VAC winding,
feeding A2-J1 pins 6 & 7. The voltage therefore should be measured directly
across the two pins (A2-J1 pins 6 and 7), and not in reference to ground -
for the AC input anyway. So put one meter lead on A2-J1 pin 6 and the other
on A2-J1 pin 7 (with the meter set to read AC volts). You should measure
close to 69 volts AC.

This voltage is used as a source for the four score displays.

Cheers,
- Sylvain.

I am metering
A2-J1
Pin1 to Ground(J3) =11.5v AC
Pin2 to Ground(J3)=11.5v AC
Pin4 to Ground(J3)=14v AC
Pin5 to Ground(J3)=14v AC
Pin6 to A2-J7 = 69v AC
if that is right then as a follow up should I get
A2-J2
Pin1 to Ground(J4) =5v DC
Pin2 to Ground(J4) =5v DC
Pin6 to Ground(J4) = -12v DC
Right?

Quoted from chief_rocker

I am metering
A2-J1
Pin1 to Ground(J3) =11.5v AC
Pin2 to Ground(J3)=11.5v AC
Pin4 to Ground(J3)=14v AC
Pin5 to Ground(J3)=14v AC
Pin6 to A2-J7 = 69v AC
if that is right then as a follow up should I get
A2-J2
Pin1 to Ground(J4) =5v DC
Pin2 to Ground(J4) =5v DC
Pin6 to Ground(J4) = -12v DC
Right?

Yes, with all AC inputs right, assuming the power supply is good, with no cold solder joints,
and properly adjusted to +5V and +60V with its adj potentiometers:

A2-J2
- pins 1&2 are +5.0 volts DC in reference to ground on same connector J2 pins 4&5.
- pins 6 should be -12.0 volt DC.

A2-J3
- pin 7: +4 V DC in reference to ground on same connector J3 pin 5
- pin 8: +8 V DC in reference to ground on same connector J3 pin 5
- pin 1: +60V DC in reference to ground on same connector J3 pin 5
- pin 3: +42 V DC in reference to ground on same connector J3 pin 5

What is the actual symptom of the problem in the game ?

- Sylvain.

the playfeild lights and backglass lights come on and after about 3-4 min the score displays light up with 000000 and c 428 .  I thought maybe there was not enough power coming from the psu to power up the mpu.  Turns out after looking at it a bit more the mpu to driver board cable is warn out from battery leakage, and the board shows some decent damage as well.  I have opted to order another mpu and psu and try to repait the other mpu in my "spare time".  I will get some .156 connectors and a pin extractor and try to salvage the cable for now.

c 428 'garbage' characters are often due to a lost memory for high scores, e.g.
battery or the 5101 CMOS RAM is done. Typically nothing to do with the power supply.
However, the score displays should light up about five seconds after power-up,
at the same time that the game over (and tilt?) relays are activated (click-click),
not 3-4 min later.

Given there is corrosion on the MPU around the battery, there is a chance there are
issues with the MPU itself, as well as the MPU to driver harness (corroded/broken pins),
along with connectors for the switch matrix (J4 and J5).

This web site will most probably help and guide you:
http://www.pinrepair.com/sys1/index.htm

Good luck !
- Sylvain.

Quoted from chief_rocker

the playfeild lights and backglass lights come on and after about 3-4 min the score displays light up with 000000 and c 428 .  I thought maybe there was not enough power coming from the psu to power up the mpu.  Turns out after looking at it a bit more the mpu to driver board cable is warn out from battery leakage, and the board shows some decent damage as well.  I have opted to order another mpu and psu and try to repait the other mpu in my "spare time".  I will get some .156 connectors and a pin extractor and try to salvage the cable for now.

When you say order another MPU are you thinking NOS (new old stock) - or a Ni-Wumpf / Pascal Jania  P1-1 X4?

In my personal opinion, go the Ni-Wumpf or Pascal route (I choose Pascal P1-1 X4, but both choices are fine).

Getting another old Gottlieb System board with spider chips is just playing with fire.  Eventually no matter how good you are at board work one of the spider chips will fail and you'll be buying another board...