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Sounds like a compound issue to me but I guess you know a lot. Have fun.
Noobie disaster
- Thread starter brian.illsley
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Sounds like a compound issue to me but I guess you know a lot. Have fun.
brian.illsley
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I Apologise if I came across rude, it was not my intention
. And as for knowing a lot, in fact I know nothing at all 
. I have the upmost respect for all of you and even more so for all the help I have thus far received. Please if you have an idea what me and BB have not thought of please share. I need all the help and the more help the better I want to crack this and have it working. Again I'm sorry if I offended.
Last edited:
brian.illsley
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Thanks BB, Yeah the last 40 checked out fine and connected.
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First 14 pins for the 4364 palette ram
The ram @ F & G share these:
1-5v
2-HC259(12)@F10
3-NEO-B1(11)
4-NEO-B1(10)
5-NEO-B1(9)
6-NEO-B1(8)
7-NEO-B1(3)
8-NEO-B1(2)
9-NEO-B1(159)
10-NEO-B1(158)
14-GRND
-------------------------
4364 @F
11-LS273(8)@H1----------------NEO-GO(35)@J5
12-LS273(13)@H1---------------NEO-GO(36)@J5
13-LS273(14)@H1---------------NEO-GO(37)@J5
-------------------------
4364 @G
11-NEO-GO(62)@J4
12-NEO-GO(63)@J4
13-NEO-GO(64)@J4
I'll finish up later.
BB
The ram @ F & G share these:
1-5v
2-HC259(12)@F10
3-NEO-B1(11)
4-NEO-B1(10)
5-NEO-B1(9)
6-NEO-B1(8)
7-NEO-B1(3)
8-NEO-B1(2)
9-NEO-B1(159)
10-NEO-B1(158)
14-GRND
-------------------------
4364 @F
11-LS273(8)@H1----------------NEO-GO(35)@J5
12-LS273(13)@H1---------------NEO-GO(36)@J5
13-LS273(14)@H1---------------NEO-GO(37)@J5
-------------------------
4364 @G
11-NEO-GO(62)@J4
12-NEO-GO(63)@J4
13-NEO-GO(64)@J4
I'll finish up later.
BB
brian.illsley
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Slight Difference but all present.
1-5v
2-HC259(12)@F10
3-NEO-B1(12)
4-NEO-B1(11)
5-NEO-B1(9)
6-NEO-B1(8)
7-NEO-B1(3)
8-NEO-B1(2)
9-NEO-B1(159)
10-NEO-B1(158)
14-GRND
-------------------------
4364 @F
11-LS273(8)@H1----------------NEO-GO(35)@J5
12-LS273(13)@H1---------------NEO-GO(36)@J5
13-LS273(14)@H1---------------NEO-GO(37)@J5
-------------------------
4364 @G
11-NEO-GO(62)@J4
12-NEO-GO(63)@J4
13-NEO-GO(64)@J4
brian.illsley
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Its now the principle of the thing, its because of the time we have put into it and the sense of achivement when or if I finally get it working. And also the doing of this, might be useful to others which would speed up there diagnosis. That and the fact I like to torture myself lol.
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Last of Palette Ram
palette ram 4364@F
15-LS273(17)@H1------------------NEO-GO(38)
16-LS273(3)@H2-------------------NEO-GO(52)
17-LS273(15)@H2------------------NEO-GO(54)
18-LS273(7)@H1-------------------NEO-GO(55)
19-LS273(18)@H1------------------NEO-GO(56)
20-GRND
21-4364(21)@G--------------------B1(31)
22-GRND
23-4364(23)@G--------------------B1(32)
24-4364(24)@G--------------------B1(29)
25-4364(25)@G--------------------B1(28)
26-4364(26)@G (5V)
27-4364(27)@G--------------------NEO-GO(41)
28-5V
------------------------------------------------
palette ram 4364@G
15-LS273(13)@H2---------------NEO-GO(1)
16-LS273(17)@H2---------------NEO-GO(21)
17-LS273(18)@H2---------------NEO-GO(22)
18-LS273(3)@H1----------------NEO-GO(23)
19-LS273(4)@H1----------------NEO-GO(24)
If all of these are making the connection one of the associated chips may be overheating causing the color change from blue to green.
BB
palette ram 4364@F
15-LS273(17)@H1------------------NEO-GO(38)
16-LS273(3)@H2-------------------NEO-GO(52)
17-LS273(15)@H2------------------NEO-GO(54)
18-LS273(7)@H1-------------------NEO-GO(55)
19-LS273(18)@H1------------------NEO-GO(56)
20-GRND
21-4364(21)@G--------------------B1(31)
22-GRND
23-4364(23)@G--------------------B1(32)
24-4364(24)@G--------------------B1(29)
25-4364(25)@G--------------------B1(28)
26-4364(26)@G (5V)
27-4364(27)@G--------------------NEO-GO(41)
28-5V
------------------------------------------------
palette ram 4364@G
15-LS273(13)@H2---------------NEO-GO(1)
16-LS273(17)@H2---------------NEO-GO(21)
17-LS273(18)@H2---------------NEO-GO(22)
18-LS273(3)@H1----------------NEO-GO(23)
19-LS273(4)@H1----------------NEO-GO(24)
If all of these are making the connection one of the associated chips may be overheating causing the color change from blue to green.
BB
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brian.illsley
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one small change but again all present,
I have found replacement palette ram chips on aliexpress but its going to take a while to get them due to delivery time. So would you recommend this to start with?
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You don't have a logic probe do you?
I think one of the associated chips may be overheating so you should turn the unit on and let it sit for like ten to fifteen minutes. feel the tops of the associated chips to see if one of them get's warm/hot similar to the YM2610.
BB
I think one of the associated chips may be overheating so you should turn the unit on and let it sit for like ten to fifteen minutes. feel the tops of the associated chips to see if one of them get's warm/hot similar to the YM2610.
BB
brian.illsley
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your right I don't have a logic probe, I'm working away and can try the tops of the chips tomorrow.
brian.illsley
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I tested with the machine on for 15-20 mins none of the chips were anywhere close to the temp of YM2610, to be honest they were all very cool. Should I get a cheap Logic probe?