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Post by leffemonster on Aug 12, 2023 2:58:57 GMT -8
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suntzu
Needs a Life!
Posts: 3,611
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Post by suntzu on Aug 12, 2023 4:21:06 GMT -8
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Post by SteveX on Aug 12, 2023 4:55:21 GMT -8
Beginning the weekend with this one  |
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victor
WS Benefactor
Posts: 1,029
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Post by victor on Aug 12, 2023 5:33:19 GMT -8
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cd_god
Is a Permanent Fixture
Finna set up a HOOD next door to your richie phuk suburban mansion
Posts: 12,293 
Member is Online
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Post by cd_god on Aug 12, 2023 6:00:44 GMT -8
3 weeks til college football starts
Hotty Toddy
And what's left of my garden after some piece of shit sprayed it with roundup or something.
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HiBeat
Global Moderator
SEIKO Iko Iko GDTRWS
Posts: 8,680
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Post by HiBeat on Aug 12, 2023 8:03:32 GMT -8
Orange turtle SRP Mod:  |
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Post by dapellegrini on Aug 12, 2023 9:51:21 GMT -8
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Post by 59yukon01 on Aug 12, 2023 10:27:23 GMT -8
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Post by earthphase on Aug 12, 2023 12:08:10 GMT -8
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inboost
WS Benefactor
Constantly Rodicoing
Posts: 4,318
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Post by inboost on Aug 12, 2023 15:56:27 GMT -8
I tried. I tried really hard. Sadly I just can't save this guy.
After getting the crystal oscillator back on line this poor fellow finally had a heartbeat after who knows how many years. I was so excited to have gotten it 'ticking' again, but I was very sad to see that most of the LCD was dysfunctional in one way or another. After many hours of testing it was clear what was wrong. the circuit path has been lost in the layers of the ceramic PCB for a full quadrant of the LCD control.
Anyone with Casiotron S-14 service history can probably tell you how delicate and finicky the board is to work with. They are terribly hard to solder to as the ceramic wicks all the heat away from the solder pads as you try and work the connection. I may have been the one who finished off those intra-layer connections as I can tell they have a transfer point somewhere close to the crystal trimmer which I had to replace (which later broke).
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raz
WS Benefactor
Posts: 1,820
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Post by raz on Aug 13, 2023 13:54:40 GMT -8
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Post by dapellegrini on Aug 13, 2023 13:57:50 GMT -8
raz - yep Paris. How was the line at the Louvre? Last time I was there it was absolutely crazy busy.
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raz
WS Benefactor
Posts: 1,820
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Post by raz on Aug 13, 2023 15:30:47 GMT -8
raz - yep Paris. How was the line at the Louvre? Last time I was there it was absolutely crazy busy. Just passing by this time (it was around closing time so not so much ppl). all main attractions had huge cues given the holiday season. The only thing reasonable in terms of waiting time was Dome of Invalides (Napoleon’s tomb) |
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ouroboros
Timekeeper
One more watch. I think....
Posts: 966
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Post by ouroboros on Aug 14, 2023 4:52:40 GMT -8
I tried. I tried really hard. Sadly I just can't save this guy.
After getting the crystal oscillator back on line this poor fellow finally had a heartbeat after who knows how many years. I was so excited to have gotten it 'ticking' again, but I was very sad to see that most of the LCD was dysfunctional in one way or another. After many hours of testing it was clear what was wrong. the circuit path has been lost in the layers of the ceramic PCB for a full quadrant of the LCD control.
Anyone with Casiotron S-14 service history can probably tell you how delicate and finicky the board is to work with. They are terribly hard to solder to as the ceramic wicks all the heat away from the solder pads as you try and work the connection. I may have been the one who finished off those intra-layer connections as I can tell they have a transfer point somewhere close to the crystal trimmer which I had to replace (which later broke).
Have you considered conductive wire paste/glue. Wouldn't need heat. Not worked on these though. |
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inboost
WS Benefactor
Constantly Rodicoing
Posts: 4,318
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Post by inboost on Aug 14, 2023 5:39:40 GMT -8
Sadly the broken connections are not exposed to apply such methods. Those seven pads disappear into the ceramic substrate and don't surface again until they are within the vault of the microprocessor.
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