exxos's Atari, Amiga & retro forum

Posted: **12 Jan 2021 16:18**

I have a feeling this poor drive has seen better days, it makes sounds like it's trying to dial-up to SCSI heaven:

Although it did show up as detected once, I haven't able to get it detected again since:

: PXL_20210112_154913150.jpg (406.7 KiB) Viewed 4228 times

Posted: **12 Jan 2021 16:23**

Steve wrote: 12 Jan 2021 16:18 I have a feeling this poor drive has seen better days, it makes sounds like it's trying to dial-up to SCSI heaven:

wow, is the motor actually running ? Kinda sounds like its stuck.

Posted: **12 Jan 2021 16:38**

It is spinning... just sounds like a dial-up modem when it tries to read.

Posted: **13 Jan 2021 09:46**

It looks like someone has had it open, given the broken warranty seal.

Posted: **13 Jan 2021 14:27**

Sounds painful :shock:

Hope the customer hasn't got any data in there.

On another note, how easy is to source an HDD like this?

Posted: **13 Jan 2021 17:32**

I think old small 2.5'' scsi's like this would be hard to find. My customer should have his data backed up to tape so hats good.

I'll be recapping the PSU and motherboard next, I'll post photos when I get to it.

Posted: **22 Jan 2021 20:04**

BIG UPDATE ON PROGRESS

* Openflops drive installed
* NVRAM replaced
* FPU installed
* Recapped PSU
* Recapped Mobo
* SCSI Terminator installed
* Wait states disabled to increase TOS speed
* Silence fan by wiring to 5v instead of 12, clean dust.

RECAP POWER SECTION
~ BEFORE

: power_section_before.jpg (288.86 KiB) Viewed 4095 times

~ AFTER

: power_section_done.jpg (564.84 KiB) Viewed 4095 times

RECAP AUDIO SECTION
~ BEFORE

: audio_section_before.jpg (518.17 KiB) Viewed 4095 times

~ AFTER Using top-quality Nichicon audio-grade golden caps

: audio_section_after.jpg (471.67 KiB) Viewed 4095 times

RECAP MODULATOR SECTION
~ BEFORE

: modulator_before.jpg (429.11 KiB) Viewed 4095 times

~ AFTER Note: the 470uf C24 cap is installed the / CORRECT / way, as it is marked incorrectly on board/schematics

: modulator_after.jpg (428.48 KiB) Viewed 4095 times

MAKE UP 4700UF MAIN CAP

: 4700uf_cap.jpg (228.87 KiB) Viewed 4095 times

: 4700uf_finish.jpg (153.95 KiB) Viewed 4095 times

SILENCE FAN BY WIRING TO 5v & CLEAN DUST

: wire_fan_to_5v.jpg (441 KiB) Viewed 4095 times

ADD INTERNAL SCSI TERMINATOR (So external drives still work without internal drive)

: scsi_terminator.jpg (321.92 KiB) Viewed 4095 times

INSTALL EXXOS NVRAM

: nvram_before.jpg (431.11 KiB) Viewed 4095 times

: nvram_gone.jpg (399.42 KiB) Viewed 4095 times

NVRAM FINISHED & CAN SEE NEW FPU IN BACKGROUND

: nvram_after.jpg (394.75 KiB) Viewed 4095 times

PUT TOGETHER FLASH FLOPPY DRIVE

: build_flashfloppy.jpg (483.79 KiB) Viewed 4095 times

~ TEST DRIVE

: flashfloppy_test.jpg (331.16 KiB) Viewed 4095 times

INSTALL NEW CF CARD

: cfcard_secured.jpg (380.73 KiB) Viewed 4095 times

MOBO FINISHED BEFORE RE-ASSEMBLY

: mobo_finished.jpg (517.75 KiB) Viewed 4095 times

TESTING BEFORE CASE FITTING

: test_after_shielding.jpg (270.98 KiB) Viewed 4095 times

CLEANING
Cleaned and disinfected with 99% IPA & Keyboard vacuumed of any dust

: cleaning1.jpg (329.66 KiB) Viewed 4095 times

: cleaning2.jpg (381.62 KiB) Viewed 4095 times

Posted: **22 Jan 2021 20:12**

WAITSTATES DISABLED FOR FASTER TOS SPEED

: waitstates_before.jpg (396.86 KiB) Viewed 4092 times

: waitstates_after.jpg (406.57 KiB) Viewed 4092 times

PSU RE-CAP

: PXL_20210119_170434552.jpg (270.04 KiB) Viewed 4088 times

: PXL_20210119_173043097.jpg (315.23 KiB) Viewed 4088 times

Posted: **22 Jan 2021 20:20**

Assume you replaced the ROM ? The original ROM will bottle out after a few hours normally.

Posted: **22 Jan 2021 20:27**

exxos wrote: 22 Jan 2021 20:20 Assume you replaced the ROM ? The original ROM will bottle out after a few hours normally.

I checked and this rom has the exact same serial number as the one in your store, so I think it is a fast rom (assuming serial number is a factor) I will of course run benchmarks and tests in the next few days.

@exxos check the fan silencing photo, you can see the ROM there.

exxos's Atari, Amiga & retro forum

C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log

Re: C-Lab MK2 CA401332-002-REVC / Repair/Restore log