Search results

I do measure around 1mH on both lines on the Plus filter (LF2) and around 15mH on both lines on LF1 with my LCR meter. Let us know if you can find new filters which will fit on the board! :) I think it’s perfectly fine to deviate slightly in values if you find new suitable components. The...

Hi Ironborn! Thats a toasty Plus! 😲 Yes, The BOM on my reloaded correspond to the original Apple board (rev 820-0107-D). The board is a 100% replication. If it is a 110V board some parts will differ. LF1 and LF2 are linefilters. Probably you will be able to find replacement parts. The footprint...

Great work again!

The TDA is on the analog board. You have to start somewhere troubleshooting, and this is a easy to access spot which can be measured live. The TDA is the amplifier between the audiochip on the logicboard and the speaker. If there is no audio signal reaching the TDA suspect the logicboard, and...

I would start by measuring with a scope on pin 2 of the TDA7052 for audiowaves, and check VCC to the TDA on pin 1. Double check continuity for ground pin 8.

Nice :cool:

Anyone tried to place/remove 51ohm R207 on the SRS_PRSNT line to proof it?:)

Dear friends, I've been working on recreating the Macintosh Classic EARLY revision analog board for quite a while now. This board has been used across both the Classic I and Classic II models. This board can be reconfigured to both 110V as 240V, although i have not test 110V setup yet. After...

Playing with my LCD 'G3 Takky' Color Classic prototype.

Although i have enough NSDU01 / NSDU15 in private stock for my entire life, please let us know if the alternatives (MPS650 / MPS750) did work!

Please stop my collecting disease!

Hereby also a VGA variant. https://github.com/daanvdl/630VGA

No, LocalTalk relies on hardware features of the Zilog SCC serial controller in the mac. The iMac doesn't have that.

Well, I don't own a 5200, so I can't give you a 100% accurate answer, but: I think you can assume that the edge connector pinout is the same across the entire line (models 630/640/5200/5300/6200/6300/5400/6400/5500/6500). This means that the necessary lines are present. However: In the...

I actuall already have a VGA design, but there is more work involved then just the technical part. The bezel need to be redesigned, because the DB15 has a different shape and do not match up with the DB15 mounting holes. I am currently working on other projects, but will probably dive into it...

I needed the board for a private project, so i did recreate the monitor out board. This board supplies the standard Mac monitor port – DB-15 and the internal speaker connector. Performa 6200, 6205CD, 6214CD, 6216CD, 6218CD, 6220CD, 6230CD, 6290CD, 6300CD (Performa 6320 and 6360 carry a...

I have no purpose for this post other than to record it for reference. Trimmer resistor (PT10MH01) Value PL5 22K PF1 1K PL3 4K7 PL7 47K PL4 47K PL6 4K7 PF2 100K PV6 22K PV5 22K PV4 22K PV1 10K PV2 10K PV3 22K

This also may be helpfull for those who are fixing his/her IICI logicboard: Power button: L212132MV02Q C1: 10uF/16V (Tantalum - D size) C4: 1uF (2220 package) C7: 10uF/16V (Tantalum - D size) C18: 47uF/16V (Tantalum - D size) C19: 47uF/16V (Tantalum - D size) C20: 47uF/16V (Tantalum - D size)...

Probably you already tried this, but if not; maybe worth trying.