I compare this new Mac SE & SE/30 power supply with the stock SONY PSU and popular SEASONIC. See how to upgrade your Main Wiring Harness with 16AWG wires! Learn how to discharge the CRT and properly remove and later reassemble the power supply and analog board. My test rig included a Micron Xceed MacroColor 30HR PDS video card & Grayscale Yoke Adapter, CPU-socketed 50MHz 68030 Daystar PowerCache accelerator, custom ROM SIMM from Kero's Mac Mods, and a Quantum spinning platter HDD.

🔎 INDEX
0:00 — Intro
0:44 — PSU Explanation & Test Set
9:54 — Discharging the CRT
12:20 — Removing the Analog Board & PSU
15:46 — PSU Disassembly
17:56 — Connector Soldering
20:55 — PSU Reassembly
25:15 — No Load Test
29:43 — SE/30 Reassembly
36:22 — PSU Testing
39:19 — PSU Troubleshooting
45:44 — Problem Mitigation
49:55 — Voltage Measurements
57:00 — Upgrading the Main Harness
1:04:27 — Temperature Measurements
1:07:29 — Closing Thoughts

🛒 BUY
• Baby Face PSU: https://www.ebay.com/itm/266898469654
• Seasonic "SUB" PSU: https://amzn.to/3Zb1lcn
Also sold on EBAY here: https://www.ebay.com/itm/204059988606
Manufacturer's Reseller List: https://industrial.seasonic.com/locat...
⚠️WARNING! Max. Load on the -12V output is 0.5A, so DO NOT buy the "SUG" model!
• Mac-O-Meter:    • Mac-O-Meter REVIEW  
• 121GW Multimeter: https://bit.ly/3yePbAN
• Probe Master Kit, 8043SK: https://bit.ly/41MDJK0
• Rigol DHO804 Oscilloscope (hackable): https://amzn.to/3MPROAt
• KETOTEK Watt Meter: https://amzn.to/3T4Wtlr
• Large Alligator Clips for CRT Discharging: https://amzn.to/3ZsaYnk
• DeoxIT D5 Contact Cleaner/Protector: https://amzn.to/3f92aeN
💡TIP: DO NOT use DeoxIT on high voltage connectors like the CRT Yoke board.
• Anti-static pad with Wrist Strap (16x24" / 41x61cm): https://amzn.to/3Zw6WKC
• Wall socket Ground adapter for banana-jack Wrist Strap: https://amzn.to/2Yvq5ge
• Torx T15 with 18" neck (to remove Mac's back housing): https://amzn.to/3B50iRA
• 16MB RAM SIMMS (30-pin, 4pc kit = 64MB, SiliconInsider): https://www.ebay.com/itm/116328614196
• 2MB ROM SIMM w/LED (Kero's Mac Mods): https://tinyurl.com/3jc247jd
💡TIP: See my ROM SIMM Video for details on other ROM SIMMs:    • ROM SIMM Fun on Vintage Macs & News f...  
• Interware Booster clone 30-SE50F (by zigzagjoe): https://tinyurl.com/3j7wv2j2
• 30Video GS, Internal Grayscale Kit for SE/30 (by zigzagjoe): https://tinyurl.com/bdewhvum
⚡UPGRADE your Main Wiring Harness:
• Pre-crimped 16AWG wire (2153401223, BLK, L=22.5cm): https://bit.ly/3XnigpC
• Pre-crimped 16AWG wire (2153402223, RED, L=22.5cm): https://bit.ly/3Zx8ior

💵 Some links above lead to Amazon USA. If you click & purchase within 24 hours, Amazon may pay me a small commission on qualifying items in your Cart.

💾 DOWNLOADS
• Norton Utilities 3.5.3 (System Info): https://bit.ly/33oW5aS
• SCSI Director Pro 4.0: https://tinyurl.com/j62eytvk

📚 REFERENCE
• Measurement Spreadsheet: https://bit.ly/3XLZoSC
• Measurements by zigzagjoe: https://bit.ly/3ZuI9GJ
• Install Video (Baby Face PSU):    • Macintosh SE & SE/30 Power Supply Rep...  
• Documentation (Baby Face PSU): https://bit.ly/3Txwu6g
• First Announcement (Baby Face PSU): https://tinyurl.com/yc3mwsta
• Voltage/Current Limits for stock PSUs: https://bit.ly/4evEzAF
• Micron Xceed Grayscale kit HARNESS uses 18AWG wires, but you should upgrade the two +5v wires!
• SE & SE/30 Main Wiring Harness uses 22AWG wires (same as 128K Mac!) Absolutely upgrade them!
• zigzagjoe first discovers Main Harness Wires are 22AWG: https://bit.ly/4emTH2Y
• Larry Pina says in ERROR that SE & SE/30 use 18AWG wires: https://bit.ly/4gtPMDu
• Seasonic "SUB" PSU Datasheet: https://bit.ly/3B4ZQTo
• Meanwell IRM-60 Datasheet: https://tinyurl.com/534y7fut
• Meanwell IRM-15 Datasheet: https://tinyurl.com/2s3kwzf8
• My Pinout Diagram of the PDS Slot: https://tinyurl.com/4kpaj54b

🙏 THANK YOU, Paypal supporters! (since my last video)
• Brian Gorham 🇺🇸 (🥇TOP repeat supporter)
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🎵 MUSIC CREDITS
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