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HP 29 & 21
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11-12-2022, 01:06 PM
Post: #2
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RE: HP 29 & 21
No, you cannot swap the PCB, the 21 and 29C have many different components (ROM, RAM, etc.).
However you can use the ACT from a 21 to replace a failed ACT in a 29C. This was long thought impossible, however PANAMATIK was able to successfully repair my 29C with an ACT from a 21 and it behaves fully correct, including Constant Memory, Programs, etc. --Bob Prosperi |
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HP 29 & 21 - zixingcheche - 11-12-2022, 08:21 AM
RE: HP 29 & 21 - rprosperi - 11-12-2022 01:06 PM
RE: HP 29 & 21 - zixingcheche - 11-13-2022, 02:10 AM
RE: HP 29 & 21 - teenix - 11-12-2022, 03:24 PM
RE: HP 29 & 21 - zixingcheche - 11-12-2022, 11:29 PM
RE: HP 29 & 21 - zixingcheche - 11-13-2022, 02:14 AM
RE: HP 29 & 21 - teenix - 11-13-2022, 06:47 AM
RE: HP 29 & 21 - rprosperi - 11-13-2022, 04:32 AM
RE: HP 29 & 21 - zixingcheche - 11-13-2022, 06:33 AM
RE: HP 29 & 21 - AndiGer - 11-13-2022, 06:55 AM
RE: HP 29 & 21 - zixingcheche - 11-13-2022, 07:43 AM
RE: HP 29 & 21 - zixingcheche - 11-13-2022, 09:01 AM
RE: HP 29 & 21 - teenix - 11-13-2022, 09:43 AM
RE: HP 29 & 21 - rprosperi - 11-13-2022, 01:41 PM
RE: HP 29 & 21 - brouhaha - 11-13-2022, 11:34 PM
RE: HP 29 & 21 - zixingcheche - 11-14-2022, 06:27 AM
RE: HP 29 & 21 - teenix - 11-14-2022, 08:11 AM
RE: HP 29 & 21 - teenix - 11-14-2022, 08:25 AM
RE: HP 29 & 21 - zixingcheche - 11-14-2022, 08:58 AM
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