VOGONS


First post, by bjwil1991

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Last week, I received a Toshiba Satellite Pro 410CDT, Syba Dual CF to 44-pin IDE adapter, and external floppy drive for the laptop. I plugged the laptop and external floppy drive in and the laptop started right up. The system was able to boot after I went into the BIOS to change the settings. The laptop came with a 1.5GB IDE HDD that still booted up, but it's making a clicking sound. I then replaced the HDD with an SSD method (CF to IDE) using a 4GB CF card running MS-DOS 6.22 and Windows 95 (3.1 to 95 upgrade) with Plus! 95. The 4GB CF card consists of 2GB for the OS and utilities, including drivers, and the rest for games. The FDD does work without issues, then comes the sad part: CD drive is broken.

When I opened up the CD drive, I noticed the laser assembly motor that turns the shaft to move the laser back and forth was stuck (bearing wasn't moving). After freeing it up and oiling it, the laser assembly moved once again, and the CD drive refuses to read CDs. Attempted to repair the laser assembly without any success, then when I power on the laptop, the time and date, including, but not limited to, the BIOS settings keep erasing.

For the CMOS battery charge, do I really need to run the system for 48 hours for it to charge, or will it charge when power is applied no matter what? I am planning on buying refurbished or new parts for the laptop or find a parts laptop that has a broken display to swap some things around and do refurbished CMOS and Wake/Resume batteries charge without issues and does that mean the cells were replaced before in its lifetime and being sold as refurbished?

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 1 of 11, by bjwil1991

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Took out the Wake/Resume 7.2V 110mAH and RTC 3.6V 30mAH batteries and noticed a lot of rust on there. No wonder they won't charge, and thankfully, they did not leak whatsoever. I also had to take the stuck screws out with a pair of wire cutters to twist the screws until they got loose and replaced them with other screws. I will install thread locker on the screws that go into the heatsink (the two screws that were a PITA to remove, but worth it).

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 2 of 11, by Thermalwrong

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That's good that your RTC and standby batteries didn't do too much damage. I've got two of this style of laptop (one to repair the other, hah) that ended up having such severe corrosion that they no longer work.
The battery leads didn't even go green on yours? You certainly caught it in time 😁
I wonder if there's any way to put a non-nimh battery in there safely to operate as an RTC battery?

Reply 3 of 11, by bjwil1991

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I was hoping that I can use a 3V CR2032 battery, but that'll require a diode to block the charge signal.

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 4 of 11, by bjwil1991

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Had to do some surgery on the system as the display was acting strange whilst installing MS DOS/Windows 3.1 Addonics AEECD24X CD-ROM drivers. Found corrosion in the CMOS battery pin header and will need to be replaced and inspect the traces for damage as well. I have repaired the video issue by scrubbing the contacts on the LIF socket on both the motherboard and video board, as well as the contacts for the display/inverter board cables and I will test it again later on after I hook up everything back up or back in to make sure it doesn't do that again.

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 5 of 11, by bjwil1991

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An update after all of these years: the laptop has a working quad-speed CD-ROM drive and I have a Lithium-Vanadium 3V coin cell installed and it keeps the settings this time.

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 6 of 11, by jrronimo

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bjwil1991 wrote on 2021-07-27, 06:04:

An update after all of these years: the laptop has a working quad-speed CD-ROM drive and I have a Lithium-Vanadium 3V coin cell installed and it keeps the settings this time.

I know this is an old post, but great to hear you were able to fix it! Did you have to do anything special to connect the coin cell battery? I saw a diode mentioned earlier; any details on that? Thanks!

Reply 7 of 11, by HanSolo

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jrronimo wrote on 2022-09-21, 16:38:
bjwil1991 wrote on 2021-07-27, 06:04:

An update after all of these years: the laptop has a working quad-speed CD-ROM drive and I have a Lithium-Vanadium 3V coin cell installed and it keeps the settings this time.

I know this is an old post, but great to hear you were able to fix it! Did you have to do anything special to connect the coin cell battery? I saw a diode mentioned earlier; any details on that? Thanks!

I'd be interested in some more details as well. I have a 320CDT and removed the batteries. A coin cell would be a nice thing to have in there.

Reply 8 of 11, by bjwil1991

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The battery I used was a Lithium-Vanadium from a Toshiba Satellite T4800CT that stopped working one day. Same connector. I was going to use a coin cell, however, I didn't have any diodes at the time and it would've required a lot of modifications to the chassis.

Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser

Reply 10 of 11, by ibeticanamuseyou

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bjwil1991 wrote on 2022-10-01, 01:41:

The battery I used was a Lithium-Vanadium from a Toshiba Satellite T4800CT that stopped working one day. Same connector. I was going to use a coin cell, however, I didn't have any diodes at the time and it would've required a lot of modifications to the chassis.

Hi!

I just disassembled mine and the connector just came off, removed everything cleaned underneath and soldered new pins…

Manual says pin 1 is positive… do you happen to know which one is pin one? Left or right? Assuming you look at the motherboard in front of you like if you were using the laptop?

Reply 11 of 11, by ibeticanamuseyou

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ibeticanamuseyou wrote on 2022-10-14, 07:11:
Hi! […]
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bjwil1991 wrote on 2022-10-01, 01:41:

The battery I used was a Lithium-Vanadium from a Toshiba Satellite T4800CT that stopped working one day. Same connector. I was going to use a coin cell, however, I didn't have any diodes at the time and it would've required a lot of modifications to the chassis.

Hi!

I just disassembled mine and the connector just came off, removed everything cleaned underneath and soldered new pins…

Manual says pin 1 is positive… do you happen to know which one is pin one? Left or right? Assuming you look at the motherboard in front of you like if you were using the laptop?

right side is positive =)