Garbage screen showed poker type stuff

ASSY 77002revD in copper on parts side


.2	7602 (read as 82s23)	stamped	50-0001x	hard to read last digit maybe 8

.10	24 pin dip		stamped	on top		"signetics logo" 8014E
							C28C06
							50-00045
				stamped	onn bottom	SINGAPORE
							C28C06

.11	7602 (read as 82s23)	stamped	50-00010

.12	7602 (read as 82s23)	stamped	50-00015

.25	24 pin dip		stamped	on top		"signetics logo" 8013E
							C28C05
							50-00044
				stamped	on bottom	SINGAPORE
							C28C05

.26	7602 (read as 82s23)	stamped	50-00014

.28	7611 (read as 82s129)	handwritten sticker	18

.29	7611 (read as 82s129)	handwritten sticker	20

.30	7611 (read as 82s129)	handwritten sticker	19

.48	7610 (read as 82s126)

.50	7640 (read as 82s140)	stamped 50-00027

.51	7602 (read as 82s23)

.59	7641 (read as 82s141)	stamped 50-00025


pin 20 different

.10 and .25 pinout
All pins go to the same places on both chips except for pin 20
Pretty much all pins eventually made it back to the intel d4289 chip.
a7 (a7 of 4289)	1	24	vcc
a6 (a6 of 4289)	2	23	a8? (c0 of 4289)
a5 (a5 of 4289)	3	22	a9? (c1 of 4289)
a4 (a4 of 4289)	4	21	vcc vpp on 2716
a3 (a3 of 4289)	5	20	cs? (c3 of 4289) chip 25.20 -> inverter -> chip 10.20 - /OE/G on 2716
a2 (a2 of 4289)	6	19	a10? (c2 of 4289)
a1 (a1 of 4289)	7	18	gnd - /CE/CP on 2716
a0 (a0 of 4289)	8	17	d7 (m7 of 4289)
d0 (m0 of 4289)	9	16	d6 (m6 of 4289)
d1 (m1 of 4289)	10	15	d5 (m5 of 4289)
d2 (m2 of 4289)	11	14	d4 (m4 of 4289)
	gnd	12	13	d3 (m3 of 4289)

read .10 and .25 as 2716's with pin 21 tied to vcc and pin 18 tied to ground, otherwise it would read back all 0's.

Mame 0.259
C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.2 
Identifying c:\mikes_old\roms\a77002\roms\a77002.2....
a77002.2             = aw.12                 tv21        T.V. 21
                     = 90902300.22           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.10 
Identifying c:\mikes_old\roms\a77002\roms\a77002.10....
a77002.10            NO MATCH

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.11 
Identifying c:\mikes_old\roms\a77002\roms\a77002.11....
a77002.11            = 700124.11             tv21_3      T.V. 21 III
                     = 90902100.20           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.12 
Identifying c:\mikes_old\roms\a77002\roms\a77002.12....
a77002.12            = aw.22                 tv21        T.V. 21
                     = 90902200.21           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.25 
Identifying c:\mikes_old\roms\a77002\roms\a77002.25....
a77002.25            = aw.1c                 tv21        T.V. 21

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.26 
Identifying c:\mikes_old\roms\a77002\roms\a77002.26....
a77002.26            = aw.41                 tv21        T.V. 21
                     = 750098.17             tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.28 
Identifying c:\mikes_old\roms\a77002\roms\a77002.28....
a77002.28            = 90100500.68           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.29 
Identifying c:\mikes_old\roms\a77002\roms\a77002.29....
a77002.29            = 90100700.38           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.30 
Identifying c:\mikes_old\roms\a77002\roms\a77002.30....
a77002.30            = 90100600.26           tvpoker     T.V. Poker

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.48 
Identifying c:\mikes_old\roms\a77002\roms\a77002.48....
a77002.48            NO MATCH

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.50 
Identifying c:\mikes_old\roms\a77002\roms\a77002.50....
a77002.50            = aw.63                 tv21        T.V. 21

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.51 
Identifying c:\mikes_old\roms\a77002\roms\a77002.51....
a77002.51            = aw.65                 tv21        T.V. 21

C:\Mikes_old\roms>c:\games\mame\mame -romident c:\mikes_old\roms\a77002\roms\a77002.59 
Identifying c:\mikes_old\roms\a77002\roms\a77002.59....
a77002.59            = aw.73                 tv21        T.V. 21