JDW | HP 50g Calculator Teardown & Repair [SD card] @JDW- | Uploaded September 2016 | Updated October 2024, 2 hours ago.
How to take off the LCD cover and open an HP 50g to repair the SD card slot Lock Detector mechanism, then reassemble the housing.
INDEX
0:00 Problem Description
3:10 Removing the LCD Cover
5:05 Opening the calculator
16:35 Testing
25:26 Repair
27:22 Reassembly
35:13 Final Test
Buy HP 50g: amzn.to/2vH0TXU
💵 NOTE: Your price on Amazon (US only) is the same even if you don't click the "amzn.to" Affiliate link above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
• HP Museum Forums: hpmuseum.org/forum
• Discussion Thread on SD Cards: bit.ly/2bWb4eG
(Special thanks to Vtile and Claudio for your help!)
💰SUPPORT THIS CHANNEL
If you wish to buy me a drink or otherwise support my content creation: paypal.me/supportJDW
📺 Please SUBSCRIBE:
youtube.com/c/JDW11/?sub_confirmation=1
#calculator #HPprime #JDW
How to take off the LCD cover and open an HP 50g to repair the SD card slot Lock Detector mechanism, then reassemble the housing.
INDEX
0:00 Problem Description
3:10 Removing the LCD Cover
5:05 Opening the calculator
16:35 Testing
25:26 Repair
27:22 Reassembly
35:13 Final Test
Buy HP 50g: amzn.to/2vH0TXU
💵 NOTE: Your price on Amazon (US only) is the same even if you don't click the "amzn.to" Affiliate link above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
• HP Museum Forums: hpmuseum.org/forum
• Discussion Thread on SD Cards: bit.ly/2bWb4eG
(Special thanks to Vtile and Claudio for your help!)
💰SUPPORT THIS CHANNEL
If you wish to buy me a drink or otherwise support my content creation: paypal.me/supportJDW
📺 Please SUBSCRIBE:
youtube.com/c/JDW11/?sub_confirmation=1
#calculator #HPprime #JDW
![HP 50g Calculator Teardown & Repair [SD card]](https://i.ytimg.com/vi/ETqQP_uxS44/hqdefault.jpg "HP 50g Calculator Teardown & Repair [SD card]
How to take off the LCD cover and open an HP 50g to repair the SD card slot Lock Detector mechanism, then reassemble the housing.
INDEX
0:00 Problem Description
3:10 Removing the LCD Cover
5:05 Opening the calculator
16:35 Testing
25:26 Repair
27:22 Reassembly
35:13 Final Test
Buy HP 50g: https://amzn.to/2vH0TXU
💵 NOTE: Your price on Amazon (US only) is the same even if you dont click the amzn.to Affiliate link above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
• HP Museum Forums: http://www.hpmuseum.org/forum/
• Discussion Thread on SD Cards: http://bit.ly/2bWb4eG
(Special thanks to Vtile and Claudio for your help!)
💰SUPPORT THIS CHANNEL
If you wish to buy me a drink or otherwise support my content creation: https://www.paypal.me/supportJDW
📺 Please SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
#calculator #HPprime #JDW")
![Spicy OClock: 68040 Macintosh Overclocking [2 of 2]](https://i.ytimg.com/vi/E_ZH8crtYU0/hqdefault.jpg "Spicy OClock: 68040 Macintosh Overclocking [2 of 2]
I reveal the Secret Sauce to high-speed 68040 CPU overclocks and test new (Mar. 22) low-latency 60ns VRAM. Heatsinking, CPU fans, and gaming speed comparisons at 40.7 & 50.1 MHz are also shown. (Part I video: https://youtu.be/JrmzIcdBNOY )
🔎 INDEX
0:00 — Intro
0:32 — Secret Sauce
8:48 — Heatsinking the CPU
10:52 — Fan Cooling the CPU
19:24 — Faster CPUs with FPU
20:51 — Even Faster VRAM & New Spicy Mount!
23:21 — High Overclock Testing (51.6MHz unstable)
27:34 — 50.1MHz (stable)
33:15 — After 4 Months of Testing
36:58 — 50.1MHz Game Testing
47:33 — 40.7MHz Game Testing
56:42 — Conclusion
59:59 — Family Medical Emergency Update
1:01:41 — Final Words & Thanks
🛒 BUY
• Spicy OClock: https://bit.ly/3rTXzTG
• New Mystic Back Panel & Spicy Mount: https://bit.ly/3x4tcx0
• OS-CON capacitor Links in text description under Recap video: https://youtu.be/IOX7wmnoy4U
• Serial Cable (to make loop-back plugs for Snooper2): https://amzn.to/3znGeXn
See my post on TinkerDifferent for details: https://tinyurl.com/26se46jw
• 60ns Low Latency 512K VRAM (Kay Koba, up to 50.3MHz): https://bit.ly/35mLBd5
• 60ns 512K VRAM (Mr. Fahrenheit, up to 49.2MHz): https://bit.ly/36sSsCi
• 60ns 512K VRAM (Drake/BetterBit, up to 49.2MHz): https://bit.ly/3LTNoa3
• UT Source 68040 CPUs (faked-markings possible): https://www.utsource.net/itm/p/891703.html
• Noctua 40x10mm Fan: https://amzn.to/3tNXzWy
(NOTE! See 🔩 FAN MOUNTING SCREWS below.)
• 45x45x10mm Gold-tone Aluminum Heatsink pack: https://amzn.to/3sBse7u
• Thermal Tape (50mm wide): https://amzn.to/3IMevkw
• Thermal Tape (same 20mm width as mine but different brand): https://amzn.to/3JR2HPg
-OR- instead of Thermal Tape, try this new Heatsink Clip with your favorite thermal paste...
• Heatsink Clip compatible with the above Gold-tone heatsinks: https://bit.ly/3KoojCS
• 64MB KEYSTRON RAM (for LC575/Mystic): https://ebay.to/3rZjIjE
• Torx T15 with LONG neck (to open Mac): https://amzn.to/2ScAskx
• Hakko Soldering Station (to install Spicy): https://amzn.to/3ArxBJ6
💁♂️TIP: Use 350°C & Leaded solder.
• Solder (Leaded Rosin Core 0.8mm): https://amzn.to/3GzJbVl
🔩 FAN MOUNTING SCREWS
• Machine screws (bolts): https://amzn.to/3ua5gWV
• Nuts: https://amzn.to/3QVB4s1
If either of the above go out of stock, here are the specs to find substitutes:
• Metric Size: M3-0.5 (M3=shaft diameter, 0.5=thread pitch, see below)
• Head Diameter: 5.3mm (much wider wont fit in the fan screw holes)
• Shaft Length (excluding head): 15mm
• Shaft Diameter: 3mm
• Thread Pitch: 0.5mm
• Type: Stainless Steel
💵 NOTE: Your price on Amazon (US only) is the same even if you dont click the amzn.to Affiliate links above, but if you do click & purchase within 24 hours, Amazon may pay me a small commission on qualifying items in your Cart.
💾 SOFTWARE
• My 1.4MB System 7.1 Boot Disk Image (for Mystic): https://bit.ly/3wVDmzM
• Clockometer 2.0.3 (DL#4): https://bit.ly/3uBMg4y
• Doom II: https://bit.ly/3tN708H
• Marathon: https://bit.ly/36UgyFM
• Dark Forces: https://bit.ly/3qLrNrb
• Wolfenstein 3D: https://bit.ly/3NGkCdV
• Duke Nukem Atomic: https://bit.ly/3NztnpS
• MacBench 3: https://bit.ly/35TNhdN
• Speedometer 4.02: https://bit.ly/34Snqmd
• Norton Utilities 3.5.3 (System Info): https://bit.ly/33oW5aS
• Photoshop 4.0: https://bit.ly/3tVPBdS
📚 REFERENCE
• CALCULATOR for Spicys Potentiometer Setting: https://stephen-arsenault.github.io
• Potentiometer is 10% tolerance: https://bit.ly/3qSgm0Z
• My Benchmark Results (updated): https://bit.ly/3qTVEh8
• Intro to Spicy OClock: https://amba.to/3H66PJ7
• Manual for Spicy: https://bit.ly/3GWCXyu
• Main IC on Spicy (LTC1799): https://bit.ly/42BHzXs
• Stephen Arsenaults Open Source VRAM design: https://bit.ly/3BlDSHC
• TinkerDifferent thread about remarked/fake CPUs: https://bit.ly/3JtOiIb
• 68040 Mask info (scroll to Masks section): https://bit.ly/3oehISp
• More 68040 Mask Info: https://bit.ly/3ottjNn
• Power Mystic video by @Action Retro: https://youtu.be/ApgiLPsyOVA
🙏 MY SINCERE THANKS to these recent Paypal contributors:
• Ken Colangelo
• Mauro Acciaccaferri (monthly supporter)
• Fred in Atlanta (double thanks for a double donation!)
• Connor from San Francisco (big thanks!)
• Eric Helgeson (BlueSCSI creator: https://bit.ly/3NvkayW )
💰HOW TO SUPPORT THIS CHANNEL
https://www.paypal.me/supportJDW
(If you do very kindly donate, it would be a wonderful help if you could let me know if I have permission to use your full name, or use something like John in Texas, when I give you public thanks in a future video. Pronunciation help is also appreciated!)
📺 Please SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
🎬 MY VIDEOS
https://www.youtube.com/user/JDW26/videos
🎶 All music in the ending segment from Duke Nukem Atomic. (Game link in SOFTWARE section above.)
#Macintosh #ColorClassic #Overclocking #JDW")
![Probe Master 8043SK Review [2023]](https://i.ytimg.com/vi/IvTr10HnOV0/hqdefault.jpg "Probe Master 8043SK Review [2023]
Premium MADE IN USA, gold-plated Probe Upgrade Kit for most any multimeter. Test leads are 18AWG with soft, burn-resistant silicone insulation. The sharp tips are great for testing, but keep them covered to injury.
🛒 BUY FROM PROBE MASTER
• 8043SK Kit: https://bit.ly/3ZaqPDp
• 8043S (smaller kit): https://bit.ly/406Fm41
• Tip Cover (recommended!): https://bit.ly/40vpV5t
• Leads only: https://bit.ly/3K22Y4u
• Aligator clips only: https://bit.ly/3JF1jA7
🛒 BUY FROM AMAZON
• 8043SK Kit: https://amzn.to/3TDzZa9
• 8043S (smaller kit): https://amzn.to/3lwOK1S
(Buying with these Amazon affiliate links supports this YouTube channel.)
🎥 121GW Multimeter Review: https://youtu.be/1iqURp-NsdM
💰HOW TO SUPPORT THIS CHANNEL
https://www.paypal.me/supportJDW
📺 Please SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
#ProbeMaster #ProbeKit #TestLeads #JDW1")
![Abe Masks from Japan [アベノマスク]](https://i.ytimg.com/vi/JbBTnW2IUPM/hqdefault.jpg "Abe Masks from Japan [アベノマスク]
I have some fun showing off my Abe Masks and other washable and disposable masks we use here in Japan. I also share a little about the state of the lockdown in Japan.
💰SUPPORT THIS CHANNEL
https://www.paypal.me/supportJDW
📺 SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
🎬 MY VIDEOS
https://www.youtube.com/user/JDW26/videos
#facemask #Japan #アベノマスク #JDW")
![Spicy OClock: 68040 Macintosh Overclocking [1 of 2]](https://i.ytimg.com/vi/JrmzIcdBNOY/hqdefault.jpg "Spicy OClock: 68040 Macintosh Overclocking [1 of 2]
See how to overclock an LC575 motherboard in a Macintosh Color Classic Mystic using Kay Kobas Spicy OClock. Fast VRAM & OS-CON capacitors required to reach the highest clock speeds. Works with an LC040 (no FPU) or full FPU 68040 CPU as long as the motherboard has an XC or MC 88916DW chip. This video is PART 1. I had to suddenly cut this video short due to an ongoing family medical emergency. When I have time to make a future PART 2 segment, it will show a full FPU 68040, heatsink, and even greater overclocking performance that will surprise you. (Part II video: https://youtu.be/E_ZH8crtYU0 )
🔎 INDEX
0:00 — Intro
1:14 — Spicy OClock Info
3:09 — Frequency Counter Kit
9:13 — Installation
14:30 — Frequency Selection
19:39 — Benchmarks
27:08 — High Overclocks
30:06 — Faster VRAM
35:39 — Serial Port Issues
37:03 — Why this video will be 2 parts
🛒 BUY
• Spicy OClock: https://bit.ly/3rTXzTG
• 60ns 512K VRAM (Mr. Fahrenheit): (no longer for sale as of 9/2024)
• 60ns 512K VRAM (Drake/BetterBit): https://bit.ly/3LTNoa3
• 70ns 512K VRAM (Silicon Insider): https://ebay.to/3oS9vDN
• Serial Cable (to make loop-back plugs for Snooper2): https://amzn.to/3znGeXn
See my post on TinkerDifferent for details: https://tinyurl.com/26se46jw
• Torx T15 with LONG neck (to open Mac): https://amzn.to/2ScAskx
• Hakko Soldering Station: https://amzn.to/3ArxBJ6
💁♂️TIP: Use 350°C & Leaded solder.
• Solder (Leaded Rosin Core 0.8mm): https://amzn.to/3GzJbVl
• Frequency Counter Kit: https://amzn.to/3ruhuZm
• Header & Jumper Kit: https://amzn.to/3tQoCi8
• Wire Kit: https://amzn.to/2ZaWOKi
• Nylon Spacer Kit: https://amzn.to/368bltF
• Velcro strips: https://amzn.to/3gBZnug
• Heat Shrink Tubing Kit: https://amzn.to/34Cwzzj
• 8x8cm Polarizing Film: https://amzn.to/3sHm0TU
• 45mm Aluminum Heatsinks (no tape): https://amzn.to/3sBse7u
• Thermal Tape (50mm wide): https://amzn.to/3IMevkw
• LR44 3pc Battery Case (PRAM batt. replacement): https://amzn.to/3pi30xe
• 64MB 60ns RAM (LC575 OK!): https://ebay.to/3rZjIjE
💵 NOTE: Your price on Amazon (US only) is the same even if you dont click the amzn.to Affiliate links above, but if you do click & purchase within 24 hours, Amazon may pay me a small commission on qualifying items in your Cart.
💾 SOFTWARE
• Clockometer 2.0.3 (DL#4): https://bit.ly/3uBMg4y
• MacBench 3: https://bit.ly/35TNhdN
• Speedometer 4.02: https://bit.ly/34Snqmd
• Norton Utilities 3.5.3 (System Info): https://bit.ly/33oW5aS
• Newton Keyboard Enabler (Modem port): https://bit.ly/3HTWH7t
📚 REFERENCE
• My Benchmark Results: https://bit.ly/3ho0TR9
• Intro to Spicy OClock: https://amba.to/3H66PJ7
• Manual for Spicy: https://bit.ly/3GWCXyu
• Main IC on Spicy (LTC1799): https://bit.ly/42BHzXs
• OS-CON Recap video: https://youtu.be/IOX7wmnoy4U
• Stephen Arsenaults CALCULATOR: https://stephen-arsenault.github.io
• Stephen Arsenaults Open Source VRAM design: https://bit.ly/3BlDSHC
• MC88916 datasheet: https://bit.ly/3SCIRxQ
• XC/MC88916DW variations: https://bit.ly/3LfoocI
• 68040 Mask info (scroll to Masks section): https://bit.ly/3oehISp
• 68kMLA thread about MASKS: https://bit.ly/3GjlYX1
• TinkerDifferent thread about remarked/fake CPUs: https://bit.ly/3JtOiIb
• More 68040 Mask Info: https://bit.ly/3ottjNn
• Frequency Counter SCHEMATIC & Review: https://bit.ly/34qXWMV
• Frequency Counter MENUS described on creators website: https://bit.ly/3sszT8a
🙏 MY SINCERE THANKS to the following Paypal contributors in Feb. 2022:
• Anonymous Donor #1
• Anonymous Donor #2 (two-time contributor)
• JCS from Chicago
• Joe Williams
• Mauro Acciaccaferri (monthly supporter)
• Stuart Ramdeen
📺 Please SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
🎬 MY VIDEOS
https://www.youtube.com/user/JDW26/videos
MARCHintosh Event Logo concept & design by Javier Rivera | YouTube: https://www.youtube.com/c/JavMaster | Twitter: @javmast3r
#MARCHintosh #ColorClassic #Overclocking #JDW")
![Macintosh SE Reloaded BUILD [Part 3]](https://i.ytimg.com/vi/KwFB_wPvVY4/hqdefault.jpg "Macintosh SE Reloaded BUILD [Part 3]
Watch me perform rust removal and complete this Mac SE motherboard build. Stay tuned for Testing in the Part 4 finale! PLAYLIST of all my SE Reloaded videos: https://bit.ly/3xHSp02
🔎 INDEX
0:00 — Rev.1.5 Fix
3:58 — PDS connector
6:43 — J11 Speaker connector
7:52 — J5 Internal SCSI
9:33 — Y1 Crystal
11:56 — L4 Bead
14:23 — L2/L3 Coils
18:34 — J16 RAM size jumper
20:11 — SW1 & SW2
23:35 — Rusted Metal Bracket
43:26 — 4 socketed chips
45:56 — U9D, U10C & U11D desoldering
53:22 — Chips to Socket
58:52 — Cleaning Flux with IPA
1:02:59 — Socketing Chips
🗣️ SE Reloaded discussion on TinkerDifferent: https://bit.ly/3yLLjJ0
🛒 BUY
• (Mouser Cart in My BOM under 📚 REFERENCE below.)
• SE Reloaded board from MacEffects (red): https://bit.ly/39yehBv
• Engineer IC Extractor SS-08 (8 to 42 pins): https://amzn.to/39WHcQl
• Jonard IC Extractor EX-2 (24 to 40 pins): https://amzn.to/3OXbGAy
• Hot Air Station 959D: https://amzn.to/3AdDSLh
• Goot Aluminum Heatsink Clips: https://amzn.to/3nkoGV0
• 10x Loupe: https://amzn.to/3tW1lf0
• 5x/11x Magnifier: https://amzn.to/3lGogXI
• DE-5000 Handheld LCR Meter (Amazon US): https://amzn.to/2ScttJz
The best handheld meter to check capacitor ESR. Includes all 3 accessories: TL-21, TL-22 & TL-23.
• Hakko Soldering Station (Fisher Price colors): https://amzn.to/3ArxBJ6
💁♂️TIP: Use 350°C & Leaded solder.
• Solder (Leaded Rosin Core 1.6mm): https://amzn.to/3IGuxxm
• Solder (Leaded Rosin Core 0.8mm): https://amzn.to/3GzJbVl
• 2-spool Solder Holder: https://amzn.to/39hIMbt
• AMTECH 559 V2 Flux (flawed plunger): https://amzn.to/3Muf4C2
• MG Chemicals Flux (great plunger): https://amzn.to/3kuAcsZ
• Desoldering wick: https://amzn.to/3iMAnA5
• Fume Extractor: https://amzn.to/3MApWyb
• 99% ISO Alcohol (Spray Bottle!): https://amzn.to/3ae4fG6
• 99% ISO Alcohol: https://amzn.to/3NoFkxN
• 99% ISO Alcohol: https://amzn.to/2MkjS3h
💁♂️I gave you 3 alcohol choices above because its often out of stock. 70% will work, 91% is better, but 99% is best for electronics cleaning (fast drying & no residue).
• Naval Jelly Rust Remover (phosphoric acid, like my Kure CRC): https://amzn.to/3xZlCm9
• PIKAL Care (metal polishing paste): https://amzn.to/3A6hlQF
🙁 Sadly, these 3 items shown in my video dont ship outside Japan:
• Anti-rust Shield (Sunhayato RS-L15): https://bit.ly/39TR39D
• Sunhayato New Relay Cleaner (mostly just alcohol?): https://bit.ly/3A9pzY4
• Precious Metal Cleaning Liquid (PMC-10): https://amzn.to/3bv98Lt
📷 MY CAMERA GEAR (used to make most of my videos):
• Panasonic GH5: https://amzn.to/39TAGtK
• GH5 II (newer version of my camera): https://amzn.to/3brSTyJ
• Olympus 60mm F2.8 Macro (used for all closeups): https://amzn.to/3u805Xb
• Olympus 12-100mm F4 (great all-around zoom lens!): https://amzn.to/39WJAGN
• Olympus 40-150mm F2.8 (fast glass with a long reach!): https://amzn.to/3Af3GqB
• Sony Tough 256GB SD Card (amazingly good!): https://amzn.to/3OyKwjO
• LAV Mic (BOYA by-M1 Pro): https://amzn.to/3bzfb1G
• Tripod (carbon fiber!): https://amzn.to/3QVuz8Q
(Tripod video review is here: https://youtu.be/6xS3R1kUlBI )
💵 NOTE: Your price on Amazon USA is the same even if you dont click the Affiliate links above, but if you do click & purchase within 24 hours, Amazon may pay me a small commission on qualifying items in your Cart.
📚 REFERENCE
• My BOM (newer than the paper shown in my video): https://bit.ly/3MF7BA9
• Kais BOM: https://bit.ly/3G2H6lA
• RAM Size JUMPER J16 Details: https://bit.ly/3ubvnzZ
• max1zzzs ROM replacement: https://bit.ly/3Ou4hc7
• Kais ADB chip replacement: https://bit.ly/3HZjvTU
• Kais GLU chip replacement (ATF16V8B): https://bit.ly/3OSpxYL
• Kais Main Github page: https://bit.ly/3wD3DkM
• Kais Videos on SE Reloaded: https://bit.ly/3yQqOea
• Kais Guide to Apple Custom ASICs: https://bit.ly/3yqdoVJ
• Mac SE Schematics: https://bit.ly/3I965Vq
• Mac SE Service Source Manual: https://bit.ly/3MykhsC
• Guide to Macintosh Family Hardware: https://bit.ly/3lv4xLc
• Computer Chronicles video on the SE: https://youtu.be/JjHzPuGi5Js
• Motherboard Horror Pics 😱: https://bit.ly/3LxK2Yw
🙏 MY SINCERE THANKS to this kind and generous Paypal contributor:
• Philippe from France (2 donations in June 2022)
💰HOW TO SUPPORT THIS CHANNEL
https://www.paypal.me/supportJDW
(If you do very kindly donate, please let me know if I have permission to use your full name, or use something like John in Texas, when I give you public thanks in a future video. Pronunciation help is also appreciated!)
📺 Please SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
🎬 MY VIDEOS
https://www.youtube.com/user/JDW26/videos
🎶 Music Credits (all CC BY-SA 4.0 by TEKNOAXE)
• Simple Stomp: https://bit.ly/3QRkXf6
• Positive Ionosphere: https://bit.ly/3xZzj4H
• Anthem for Tomorrow: https://bit.ly/3ONDeYS
• Chasing Snow: https://bit.ly/3xZGh9H
• Opus Metropolis: https://bit.ly/3xZ5hOq
• To the Atmosphere: https://bit.ly/3OEM2R6
#Macintosh #SEreloaded #Motherboard #JDW")
