I had one like this back in the day (1987), on a whim bought a functioning one I found on Ebay. Thinking about recapping it and seeing if it will go another 30, which is more time than I have.
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Re: Nakamichi OMS-2A
Keep them! no need to recapp unless there is a real problem. they are good caps and analog sound signals are less eroding than graphic cards and CPU -
Re: Nakamichi OMS-2A
I too would leave it alone. there is no need to replace those caps if the unit is working. you will likely do more damage and end up with a non working unit in the end.Comment
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Hi! This Mac has been an headscratcher for me, I can't seem to figure out the issue. The Macbook has gotten water damage to the front of the keyboard connector and battery connector. The keyboard connector was dead, by which I mean it was completely corroded and I have replaced it with a brand new one.
I have verified all the pins are connected to the main board and the main voltages (PP1V8_AONSW_KBD_ISNS and PP3V3_AON_KBD_CONN) are both present, with and without keyboard attached.
Unfortunately, the keyboard does NOT want to work, caps lock LED not functioning as well as any...06-16-2025, 12:03 PM -
hi all,
i am working on macbook pro A2338 820-02020 can turn on but keyboard and trackpad not functioning.
no sign of water damage.
measurements:
TPAD_KBD_WAKE_L = 1.78V
KBD_INT_L = 1.8V
SPI_TPAD_INT_CONN_L = 1.77V
IPD_LID_OPEN_1V8 = 0V
I2C_SMC_IPD_1V8_SCL = 1.79V
I2C_KBD_SDA = 1.84V
SPI_TPAD_MOSI_CONN = 0V
IPD_LID_OPEN_1V8 = 1.8V when open lid
anyone can help? -
Hi all,
Need some assistance with a 1987. History is its chassis was completely crushed trackpad and screen were shattered not sure how but it seems like it was ran over. Board visually seems fine doesn't look warped no visible cracks in anything board side.
went through the power sequence diagram on logiwiki for the 01055 because there doesn't seem to be one for the 1987? All rails up until pp3v3s5 are present. Found out that pp3v3s5 and pp1v8s5 are coming on when you first connect the board but they shutdown after around 15 seconds or so.It seems like the PMIC is... -
Hello guys,
need help, i have a laptop that i encountered having keyboard and touchpad not working, not immediately going to BIOS i already tried replacing even just the keyboard with a new one but still problem exists. now i only realized to checked it from bios to erase doubts. i found out both touchpad and keyboard are working only on BIOS but not on windows.
since i cant just reformat the said laptop, i tried installing MyAsus utility and updated my drivers , and windows update as well. i included updating the bios to latest 3.08 version. still kb and touchpad is working on bios... -
Hi,
This is my first post asking for help, but I feel I have now reached a point where I am out of my depth entirely.
820-01814-A board model, purchased with knowledge it was faulty and had water damage that had affected the touchbar. Water damage was located around the touchbar connectors to the point there were open circuits. When turned on the touchbar would light up, but the entirety of it was scrambled colours and pixelation.
I replaced the topcase (wasn't comfortable doing a touchbar swap) expecting this to be a simple issue of an open circuit, but...
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