I managed to check all the connections this morning and found that pin 15 (RXW) isn't connecting. It looks like when I removed the existing chip I must have damaged that track :oops:
The track for that pin isn't visible so does anyone have any suggestions on how I can repair it?
Cheers
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RTC Replacement
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avctech
- Posts: 21
- Joined: 20 Aug 2020 15:23
Re: RTC Replacement
Proud owner of an Atari Falcon and Atari Jaguar with CD (toilet) add-on.
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atari030
- Posts: 366
- Joined: 12 Feb 2018 12:43
Re: RTC Replacement
I had trouble with mine and had to nut it out so I listed everything to buzz it out. The trace should run to U24+U52/Pin13 (ACIA). That ground plane is a bitch.
U64/Pin1 Power 5V
U64/Pin2 not connected or not used
U64/Pin3 not connected or not used
U64/Pin4 AD0 <-> U31/Pin41
U64/Pin5 AD1 <-> U31/Pin42
U64/Pin6 AD2 <-> U31/Pin43
U64/Pin7 AD3 <-> U31/Pin44
U64/Pin8 AD4 <-> U31/Pin45
U64/Pin9 AD5 <-> U31/Pin46
U64/Pin10 AD6 <-> U31/Pin47
U64/Pin11 AD7 <-> U31/Pin48
U64/Pin12 GND
U64/Pin13 RTCCS <-> U56/Pin75
U64/Pin14 RTCAS <-> U56/Pin76
U64/Pin15 RXW <-> U24+U52/Pin13
U64/Pin16 not connected or not used
U64/Pin17 RTCDS <-> U56/Pin55
U64/Pin18 is connect to C232, R243 and D11 on the motherboard backside
U64/Pin19 not connected or not used
U64/Pin20 not connected or not used
U64/Pin21 not connected or not used
U64/Pin22 not connected or not used
U64/Pin23 not connected or not used
U64/Pin24 Power 5V
U64/Pin1 Power 5V
U64/Pin2 not connected or not used
U64/Pin3 not connected or not used
U64/Pin4 AD0 <-> U31/Pin41
U64/Pin5 AD1 <-> U31/Pin42
U64/Pin6 AD2 <-> U31/Pin43
U64/Pin7 AD3 <-> U31/Pin44
U64/Pin8 AD4 <-> U31/Pin45
U64/Pin9 AD5 <-> U31/Pin46
U64/Pin10 AD6 <-> U31/Pin47
U64/Pin11 AD7 <-> U31/Pin48
U64/Pin12 GND
U64/Pin13 RTCCS <-> U56/Pin75
U64/Pin14 RTCAS <-> U56/Pin76
U64/Pin15 RXW <-> U24+U52/Pin13
U64/Pin16 not connected or not used
U64/Pin17 RTCDS <-> U56/Pin55
U64/Pin18 is connect to C232, R243 and D11 on the motherboard backside
U64/Pin19 not connected or not used
U64/Pin20 not connected or not used
U64/Pin21 not connected or not used
U64/Pin22 not connected or not used
U64/Pin23 not connected or not used
U64/Pin24 Power 5V
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avctech
- Posts: 21
- Joined: 20 Aug 2020 15:23
Re: RTC Replacement
Thanks Atari030, all sorted now :)
Proud owner of an Atari Falcon and Atari Jaguar with CD (toilet) add-on.
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avctech
- Posts: 21
- Joined: 20 Aug 2020 15:23
Re: RTC Replacement
Thanks to everyone who helped me sort this out, your support and patience is greatly appreciated :thanksyellow:
Proud owner of an Atari Falcon and Atari Jaguar with CD (toilet) add-on.
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exxos
- Site Admin
- Posts: 28094
- Joined: 16 Aug 2017 23:19
- Location: UK
Re: RTC Replacement
:bravo: :goodpost:
What was it in the end ?
What was it in the end ?
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avctech
- Posts: 21
- Joined: 20 Aug 2020 15:23
Re: RTC Replacement
I screwed the track on Pin 15 😡 Anyway, some enamelled wire and 5 minutes, all fixed 👍
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Proud owner of an Atari Falcon and Atari Jaguar with CD (toilet) add-on.
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atari030
- Posts: 366
- Joined: 12 Feb 2018 12:43
Re: RTC Replacement
This week I'm doing tech support for a CSIRO cluster. I got much more satisfaction in seeing that Falcon working again. :-) Nice one.
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avctech
- Posts: 21
- Joined: 20 Aug 2020 15:23
Re: RTC Replacement
Switched Falcon on today, and it doesn’t boot ☹️
This is all I get...anyone got any ideas?
This is all I get...anyone got any ideas?
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Proud owner of an Atari Falcon and Atari Jaguar with CD (toilet) add-on.
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exxos
- Site Admin
- Posts: 28094
- Joined: 16 Aug 2017 23:19
- Location: UK
Re: RTC Replacement
Never seen that one before :shrug: like its in some test mode or something. Is the floppy light still flashing ?
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Cosmic Puppet
- Posts: 1731
- Joined: 02 Aug 2019 01:03
- Location: Angus!
Re: RTC Replacement
Love that screen colour!avctech wrote: 26 Aug 2020 20:27 I screwed the track on Pin 15 😡 Anyway, some enamelled wire and 5 minutes, all fixed 👍
4AF0796E-30BC-477F-B648-EB47344C7946.jpeg
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