HP27 Restoration (Lots of Corrosion)

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HP27 Restoration (Lots of Corrosion)

04-08-2022, 10:38 PM

Post: #21

teenix Offline

Senior Member

Posts: 2,038
Joined: May 2016

RE: HP27 Restoration (Lots of Corrosion)

It might be worth replacing the tantalum capacitors in the power supply. Also, there is a 2u2 power up reset capacitor hanging off pin 18 of the ACT chip. If this is faulty, it may not reset properly.

cheers

Tony

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Messages In This Thread

HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 03:57 AM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 03:59 AM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 04:34 AM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 05:57 AM

RE: HP27 Restoration (Lots of Corrosion) - Jonas Sandstedt - 04-06-2022, 08:41 AM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 11:44 AM

RE: HP27 Restoration (Lots of Corrosion) - teenix - 04-06-2022, 12:00 PM

RE: HP27 Restoration (Lots of Corrosion) - Jonas Sandstedt - 04-06-2022, 12:02 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-06-2022, 12:36 PM

RE: HP27 Restoration (Lots of Corrosion) - GreyUser - 04-06-2022, 11:01 PM

RE: HP27 Restoration (Lots of Corrosion) - Duane Hess - 04-07-2022, 06:45 AM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-07-2022, 09:00 AM

RE: HP27 Restoration (Lots of Corrosion) - teenix - 04-07-2022, 09:24 AM

RE: HP27 Restoration (Lots of Corrosion) - Maximilian Hohmann - 04-07-2022, 12:17 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-07-2022, 03:30 PM

RE: HP27 Restoration (Lots of Corrosion) - teenix - 04-07-2022, 11:50 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-08-2022, 03:02 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-08-2022, 03:21 PM

RE: HP27 Restoration (Lots of Corrosion) - Ren - 04-08-2022, 08:40 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-08-2022, 09:05 PM

RE: HP27 Restoration (Lots of Corrosion) - teenix - 04-08-2022 10:38 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-09-2022, 01:41 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-09-2022, 01:54 PM

RE: HP27 Restoration (Lots of Corrosion) - teenix - 04-09-2022, 11:05 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-10-2022, 01:42 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 04-10-2022, 01:39 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 05-12-2022, 04:49 AM

RE: HP27 Restoration (Lots of Corrosion) - mfleming - 05-13-2022, 04:03 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 05-13-2022, 07:30 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 05-16-2022, 05:52 PM

RE: HP27 Restoration (Lots of Corrosion) - mfleming - 05-16-2022, 09:18 PM

RE: HP27 Restoration (Lots of Corrosion) - calc-calcs - 05-19-2022, 02:21 PM

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