Author: kerry

Welcome back to the world of retro computing! In today’s dive into nostalgia, we take a closer look at the IBM ThinkPad 385ED, a vintage laptop that dates back to the Windows 95 era. This particular model, powered by a Pentium processor, is not only a collector’s item but also a testament to the durability and reliability that IBM laptops were known for. However, as our host discovers, this ThinkPad has encountered some issues that have led it to the brink of being discarded. Can it be saved? Let’s find out!

Initial Challenges and Diagnosis

Upon powering on the ThinkPad, it becomes evident that the backlight is functioning, but the display presents a chaotic array of colorful lines. Thankfully, the laptop is operational enough to boot into Windows 95, thanks to a recently replaced coin cell battery that is crucial for BIOS functionality. The next step for our intrepid technician is to open the device and investigate the screen issues—speculating whether the problem lies with a loose ribbon cable or a potentially faulty display.

Opening Up the ThinkPad

As the ThinkPad is disassembled, the host takes great care to avoid damaging any of the delicate ribbon cables that connect the various components. To everyone’s surprise, the interior of the laptop is exceptionally clean, suggesting it hasn’t been heavily used. With a few careful maneuvers, the technician accesses the LCD connections, revealing a significant discovery: one of the cables was slightly unplugged. This simple oversight was likely the result of a drop, which caused the disconnection, but fortunately, no other damage was found.

Upgrading to Solid State

With the screen issue resolved, the focus shifts to the hard drive. The original hard drive, a modest 2GB, is extracted for cloning and replacement with a more modern solid-state drive (SSD) using an IDE to SD card adapter. This upgrade promises enhanced speed and reliability, which are essential for the smooth operation of older hardware. However, the initial attempt to use the SD card adapter fails, leading to the realization that a Compact Flash to IDE adapter would be a more compatible solution.

Finishing Touches and Future Plans

After some trial and error, including 3D printing a new bracket for the Compact Flash adapter, the host successfully boots the laptop with the new setup. The ThinkPad springs to life, showcasing its retro charm and functionality. The journey doesn’t end here; future plans may include converting the backlight to LED and refurbishing the battery for a complete restoration. This project not only revives a piece of computing history but also demonstrates the potential to breathe new life into vintage technology.

Overall, this adventure with the IBM ThinkPad 385ED is a reminder of the joy and satisfaction that comes from restoring retro technology. Whether you’re a seasoned tech enthusiast or a curious newcomer, the world of vintage computing offers endless opportunities for exploration and creativity. Stay tuned for further updates on this project, as there’s always more to discover in the realm of retro PCs!

Lets Save an IBM Thinkpad 385ED from the dump. This one wont show anything on the display except for some multi colored lines.

Watch on YouTube: Can This Dumpster-Bound ThinkPad 385ED Be Saved?

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Welcome back to the workshop! Today, we’re diving into a troubleshooting adventure with a Creality filament dryer that isn’t heating up as it should. The primary function of this device is to gently warm and dehumidify various 3D printing filaments, such as PLA and PETG, preventing them from degrading. However, the owner reported that this specific unit, purchased at a discount as an Amazon return, was completely non-functional. Let’s unpack the problem and explore the repair process!

Initial Observations

Once the dryer was taken out of the box, the first thing noticed was the absence of a switch on the lid, which could potentially disable the unit when opened. The speaker decided to power it up to investigate further. After turning it on, it was quickly apparent that the air blowing out was cold, confirming that the dryer was not heating at all. After about eleven minutes of waiting, the situation remained unchanged, prompting the speaker to take a closer look inside.

Disassembling the Dryer

Gaining access to the internal components involved carefully removing insulation and other parts. As the speaker opened the unit, they discovered signs of previous tampering, including dog hair and an easily removed sticker. This raised concerns about the device’s prior history and condition. The heating element was identified, and the speaker prepared to check it alongside the associated circuit board, which contained a solid-state relay likely responsible for the heating function.

Diagnosing the Issue

Using a multimeter, the speaker began testing the solid-state relay, suspecting it to be the source of the malfunction. Measurements indicated a resistance of several kilohms, which was excessively high for a functioning relay. This prompted a closer inspection and further tests, confirming that the relay was indeed defective. The speaker then sourced a replacement part and prepared for reassembly.

Successful Repair and Testing

With the new solid-state relay in hand, the speaker replaced the faulty component, carefully reassembling the dryer. After reconnecting all the wiring and components, including the fan and display, it was time for a final test. The moment of truth arrived when the unit was powered on, and to everyone’s relief, the temperature began to rise, indicating that the repair was a success!

In conclusion, this repair journey showcased the importance of thorough troubleshooting and diagnosis in electronic devices. The faulty solid-state relay was the root cause of the heating issue, and with a little patience and technical know-how, the dryer was restored to proper working order. As the speaker plans to test the dryer overnight with filament inside, viewers are encouraged to leave comments and share their thoughts. This engaging repair story reminds us that even when things go wrong, a little investigation and determination can lead to a successful outcome!

Creality Filament Dry Box 2.0 Repair for no heat. Let's figure out why this thing doesn't work.

Watch on YouTube: Creality Filament Dry Box 2.0 Repair for no heat

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In the latest video, the technician dives into an exciting project: upgrading the Kenwood TK-730 radio from 32 channels to an impressive 160 channels. This ambitious task involves replacing specific chips on the radio’s main board and control head, which are critical for enabling the additional channels. The speaker introduces the necessary components, particularly highlighting the K-5 chip and its equivalent replacement, the 24LC16B. With a clear plan in place, the technician prepares to disassemble the radio for the upgrade.

Disassembling the Radio

The disassembly process begins smoothly as the technician removes the screws and accesses the chips that need to be replaced. With precision, the speaker extracts the original chips and prepares to install the new ones. Notably, the replacement chips are matched closely to the originals, ensuring compatibility. The removal of resistors and careful handling of the components are key steps in the process, showcasing the meticulous nature required for such upgrades.

Programming the Radio

After replacing the chips, the technician powers up the radio to initiate the programming phase. This involves connecting the radio to a computer and using specific software to read and write the new channel configurations. The speaker encounters a few challenges, including a model type mismatch, but demonstrates troubleshooting techniques to overcome these hurdles. The radio is set to programming mode, and the technician starts inputting various channel frequencies, confirming the successful recognition of the new configuration.

Adding Channels and Testing

With the programming underway, the technician begins to populate the radio with an array of channels, showcasing the flexibility and capability of the upgraded device. The video emphasizes the importance of having not just a larger number of channels but also the practical use of these channels for off-road enthusiasts and other users. The technician successfully programs multiple groups of channels, demonstrating the radio’s newfound capabilities and ensuring it holds the information correctly.

Conclusion and Community Engagement

The upgrade proves successful, with the technician able to program over 100 channels into the radio, breathing new life into this piece of equipment. The speaker expresses enthusiasm for the project and invites viewers to engage by sharing their thoughts in the comments. This upgrade not only saves the radio from being discarded but also enhances its usability for various applications, reaffirming the value of DIY projects in the tech community. Viewers are encouraged to consider similar upgrades, fostering a sense of innovation and resourcefulness among radio enthusiasts.

Here's a cheaper way to upgrade your 32 channel Kenwood TK-730 to 160 Channels!

Watch on YouTube: Turn a 32-Channel Radio into a 160-Channel Radio – Kenwood TK-730

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In today’s blog, we dive into the fascinating world of vintage radios through a hands-on exploration of the Kenwood TK-730, a VHF land mobile radio that previously served the needs of BC Rail. The video starts with the presenter expressing uncertainty about the radio’s functionality, as it may have been sitting idle for quite some time. The first step in the journey is to replace the non-standard power connector with a standard Kenwood connector, allowing for proper testing of the device without needing to purchase any additional parts.

Diagnosing Power Issues

As the presenter opens the Kenwood TK-730, they quickly realize the challenge of powering it on. Many older Kenwood radios require an external speaker, which connects through a specific port, often necessitating a jumper for ignition input. After consulting the manual, the presenter identifies that pin number three is designated for a 12V DC ignition input. A quick modification with a jumper wire leads to the satisfying sound of relays clicking, indicating that the radio is receiving power. However, a flashing display presents another layer of complexity that hints at potential programming issues.

Programming Challenges and Solutions

With the radio powered up, the presenter connects it to a universal programmer and a Toughbook using DOSBox to read and modify its settings. The flashing screen could stem from a corrupt EEPROM or incorrect programming related to the radio’s multi-head functionality. Thankfully, the presenter is able to access the programming and confirm that the radio is set up for single-band operation. After some trial and error, including programming a test frequency, the flashing issue is resolved, and the presenter hears audio feedback through the connected speaker, marking a significant milestone in the repair process.

Revamping the Radio’s Design

With the radio operational, the next phase involves enhancing its functionality. The presenter discusses the limitations of the TK-730, which only supports 32 channels, and expresses a desire to expand this capability. To do so, they outline plans for 3D printing a new rear plate that accommodates a standard power connector and a 3.5mm mono headphone jack for external speakers. This modification aims to streamline the radio’s usability while maintaining its vintage aesthetic.

Future Prospects and Community Engagement

The video concludes with the presenter expressing enthusiasm for future modifications, particularly the prospect of adding more channels by swapping the EEPROM chip. They invite viewers to engage with the content by liking, commenting, and subscribing for updates on this ongoing project. This interactive approach not only builds a community around vintage radio restoration but also encourages knowledge sharing among enthusiasts. As the journey with the Kenwood TK-730 continues, it’s clear that the presenter is passionate about breathing new life into this classic piece of technology.

Just seeing if this radio works and what we can do with it in the future.

Watch on YouTube: Playing with a Kenwood TK-730

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In this exciting episode, we dive into the restoration of a Sony PS Q3 record player that was on the verge of being discarded. This compact and stylish device, originally designed for Sony’s popular FH series Hi-Fi systems from the 1980s, is a sought-after gem among vintage audio enthusiasts. Despite its charm, this particular unit came with some challenges, including a missing chunk from its cover and snipped cords. Nevertheless, the restoration journey promises to breathe new life into this forgotten piece of technology.

Disassembly and Inspection

The first step in the restoration process involved removing the lid to access the internal components of the record player. The speaker noted an unusual angle in the setup, indicating that something was amiss. Upon further inspection, he discovered disintegrated belts and a very dirty interior filled with dust and grime. The speaker emphasized the importance of a thorough cleaning, especially considering the age of the unit—over 40 years old!

Recapping and Repairs

As the restoration continued, the technician decided to recap the circuit board, replacing electrolytic capacitors that, although still functional, were aging. Given the rarity of the Sony PS Q3, it was essential to ensure its longevity. The speaker skillfully desoldered the necessary components and cleaned the entire mechanism, removing the dust that had accumulated over the years. This meticulous attention to detail was crucial for restoring the record player to its former glory.

Replacing Parts and Final Touches

New belts were sourced, and the speaker mentioned the challenge of finding the correct size, highlighting the dedication required for such a project. A new needle was also installed, adding a fresh element to the sound quality. Although the cover still sat a bit crooked due to the prior damage, the speaker was pleased with the overall condition of the restored record player. The final assembly involved making sure everything was securely in place, including the power cord and RCA connections.

Success and Reflection

With the restoration complete, the moment of truth arrived. The speaker powered on the Sony PS Q3 and placed a record onto the platter. To his delight, the unit functioned beautifully, proving that this vintage record player was indeed salvageable. Although it wasn’t in perfect condition, this restoration saved the Sony PS Q3 from an unfortunate fate in the trash. The speaker reflected on the joy of reviving such a classic piece of audio equipment, reminding us all of the importance of preserving history and the thrill of DIY projects.

Saving this Sony PS-Q3 record player from the trash. This is a record player for the famous Sony FH series HIFI stereos.

Watch on YouTube: This Sony Record Player Was Headed for the Trash

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The latest episode from the bench features an intriguing project where the host attempts to resurrect a broken Macintosh SE by utilizing components from another non-functional unit. This hands-on exploration not only highlights the charm of vintage computing but also dives into the technical challenges associated with restoring these classic machines. The video begins with an overview of the Macintosh SE, focusing on its broken CRT and the unique video interface modulator discovered inside, stirring curiosity about its potential outputs.

Disassembly and Component Analysis

The host meticulously disassembles the first Macintosh SE, documenting the condition of its internal components, including the motherboard, hard drive, and floppy drive. While the original capacitors appear intact, the age of these components raises concerns about their reliability. The host notes the presence of a corroded battery and plans to replace all capacitors to ensure better longevity. In an amusing twist, a hidden Canadian two-dollar coin, known as a “toonie,” is found during the disassembly, providing a light-hearted moment in the process.

Swapping Cases and Cleaning Up

Next, the video transitions to the second Macintosh SE case, which has a functioning CRT but is missing its motherboard. The host successfully swaps several components, including the floppy drive and the analog board, while cleaning up the dusty and grimy internals. A thorough rinse in the sink helps restore the case to a more presentable condition, showcasing the dedication to reviving these nostalgic machines. Meanwhile, the host expresses a desire to retro-brighten the case in the future, although for now, he appreciates its seasoned appearance.

Capacitor Replacement and Initial Testing

With the components in place, the host proceeds to recap the logic and analog boards, replacing aging capacitors to enhance functionality. This step is crucial for ensuring that the Macintosh SE will operate reliably in the years to come. After completing the recap, the moment of truth arrives as the system is powered on. To the delight of both the host and viewers, the Macintosh boots up successfully, presenting a cursor and responding to commands, although the hard drive proves to be non-functional.

Exploring the Video Modulator

One of the most exciting parts of the video centers around the mysterious video interface modulator found in the first unit. The host connects it to an oscilloscope to analyze the signals and discovers that it outputs a composite video signal. Although challenges arise when trying to connect it to a capture device, the host remains optimistic about future explorations with this component. He plans to investigate further, potentially connecting it to more advanced video equipment to capture the output properly.

Conclusion and Future Projects

By the end of the episode, viewers witness the successful resurrection of the Macintosh SE, now fully recapped and equipped with modern upgrades like a blue SCSI device that connects to the internet. The host hints at future projects, including restoring additional vintage Macs and further investigating the video modulator. This engaging journey through retro computing showcases the challenges and joys of working with vintage technology, leaving viewers excited for what’s to come. As the host invites audience interaction through comments and feedback, it’s clear that the passion for restoring these classic machines is alive and well.

This Mac SE was tossed in the garbage bin and needs some love. It has an interesting modification inside. Luckily I have another abandoned donor that we can piece together.

Watch on YouTube: Can Two Dead Macintosh SEs Make One Working Computer?

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In the latest bench repair session, our radio enthusiast tackles a Kenwood TK-880 UHF mobile radio, which has seen better days after being snipped out of a truck. The objective? To repair the antenna and power connectors and determine if the radio is still operational. Right away, a missing screw raises some eyebrows, but upon closer inspection, there are no major red flags aside from a slightly spread coil that likely won’t affect functionality.

The repair process begins with the removal of the speaker to access the connectors. Our expert uses a solder sucker to detach the damaged connections, carefully working with the soldering iron to avoid damaging the radio’s internals. With a good inventory of spare parts on hand, he swaps the antenna pigtail from a donor radio and prepares to build a new power cable using 14-gauge wire, which is sufficient for a 25-watt radio like this one. This attention to detail ensures that the radio will be robust and reliable once reassembled.

Once the power cable is ready and the connectors are securely soldered, the speaker is reattached, and it’s time for testing. The radio is connected to a Motorola set, allowing the technician to check for any existing programming. After some trial and error, the radio is successfully programmed, revealing previous frequencies likely used in the San Francisco area. The testing shows a promising output of 20.5 watts, which aligns with the radio’s specifications, confirming it’s still functional.

However, not everything is perfect. The receive sensitivity is a bit weak, indicating potential issues with the volume or speaker quality. To troubleshoot, the technician replaces the existing speaker with another Kenwood model, significantly improving the sound quality. This simple swap suggests that the original speaker was likely the culprit behind the weak audio. With the new speaker in place, the technician plans to perform an alignment to optimize the radio’s performance further.

In conclusion, this Kenwood TK-880 radio is salvaged from the brink of obsolescence, showcasing the importance of repair and restoration in the world of electronics. Despite being a 25-watt unit, it is versatile enough for GMRS or amateur radio use, making it a valuable asset for any radio enthusiast. After some final adjustments and alignments, this radio will soon find a new home—perhaps even listed on eBay for someone else to appreciate. With every successful repair, our technician not only saves a piece of equipment but also contributes to the sustainability of technology in our modern world.

Saving this Kenwood TK-880 from the garbage pile. Somebody cut teh cables off and left it for dead. Let's see if we can rescue it.

Watch on YouTube: Salvaging a Kenwood TK-880

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In this informative video from Salvage Geek, the host dives into the nuances of programming an unlocked Yaesu FT-2900 radio. The key takeaway is a newly uncovered setting in the Chirp software that enables programming for radios that have been unlocked for transmit and receive. This discovery comes after the host initially encountered issues while attempting to program the device, leading to confusion about a potential hardware fault. The video aims to clarify this common problem for viewers who may have experienced similar challenges.

Getting Started with Programming

The process begins with connecting the radio to a computer via a programming cable. The host demonstrates how to access the device manager to identify the correct COM port for the FT-2900. After selecting the appropriate model in Chirp—either the standard FT-2900R or the unlocked version—the host attempts to download settings from the radio. However, the initial attempts result in communication failures, prompting further exploration into the programming options available.

Unlocking the Secrets of the FT-2900

As the host navigates through the programming process, they highlight the importance of correctly identifying the radio model. The unlocked version of the radio presents unique challenges, particularly regarding its programming capabilities. The host emphasizes that once the radio is modified for wider frequency access, it may lose some of its original programming features. This is crucial information for anyone looking to get the most out of their unlocked FT-2900.

Successful Programming Techniques

After some trial and error, the host successfully enters Clone mode on the radio, which allows for programming to proceed. They demonstrate how to program a test frequency into the radio, showcasing the updated features in Chirp that accommodate unlocked radios. The video serves as a practical guide, illustrating the step-by-step process to ensure successful programming without hardware issues. The host’s excitement is palpable as they confirm the successful upload of frequencies, providing an audio check to demonstrate functionality.

Updates and Community Contributions

One of the standout moments in the video is the host’s appreciation for the ongoing updates in Chirp. They encourage viewers to ensure they are using the latest version of the software to access the newly added options for programming unlocked radios. This insight showcases how community contributions can enhance user experience, making it easier for amateur radio enthusiasts to navigate similar issues.

In conclusion, this video effectively addresses a common concern among users of the Yaesu FT-2900 radio. By sharing their experience and the workaround for programming unlocked radios, the host provides valuable information that can save others time and frustration. Viewers are encouraged to engage with the content by liking the video, subscribing for more insights, and sharing their own experiences in the comments. For anyone working with the FT-2900, this video is a must-watch to ensure successful programming and optimal use of the device.

This is how to program an unlocked Yaesu FT-2900.

I get this question often. This is now a feature built right into CHIRP software. If you don't see it in your radio list, then you need to download a newer version of CHIRP.

Watch on YouTube: How to Program an unlocked Yaesu FT-2900

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In the latest DIY tutorial, we dive into the inner workings of the Icom IC-2800, a popular ham radio model that often comes with frequency restrictions. The focus of this video is on how to unlock these frequencies, allowing users to transmit beyond the designated H bands. It’s essential to note that this guide is purely for educational purposes, and anyone considering this modification should ensure they hold the appropriate licenses for their region before transmitting.

Opening Up the Icom IC-2800

The process begins with opening the radio, which is surprisingly straightforward due to the single screw securing the cover. This simplicity is a rarity in radio design, making it easier for enthusiasts to access the internal components. Once the cover is off, attention is directed toward a specific area of the circuit board where several diodes are located. The modification involves removing four diodes, which will ultimately enable transmission outside the standard frequency bands.

Removing the Diodes

During the diode removal process, the presenter emphasizes the importance of using flux to assist in the desoldering of these components. While a microscope isn’t necessary, the presenter employs one to provide a clearer view for viewers. The diodes are carefully removed, and a technique is shared for retaining them, allowing for easy reversal of the modification if desired. This approach showcases a thoughtful consideration for those who may want to revert to the original settings in the future.

Reassembling and Testing the Radio

With the diodes removed and set aside, the presenter reassembles the radio, ensuring that the RF shield is correctly positioned. Once everything is back together, the moment of truth arrives: testing the radio to confirm that it now transmits outside the original H bands. This successful modification highlights the potential of the Icom IC-2800, transforming it into a more versatile tool for ham radio operators.

Important Considerations

As the video concludes, the presenter offers crucial advice regarding antenna tuning and SWR (Standing Wave Ratio) management. Since the Icom IC-2800 is not designed for high SWR situations like commercial radios, users must ensure their antennas are appropriately matched to avoid damage during transmission. Whether using the modified settings occasionally or for regular operations, maintaining proper SWR is vital for safe and effective use of the radio.

Overall, this video serves as an engaging and informative guide for ham radio enthusiasts looking to expand the capabilities of their Icom IC-2800. With clear instructions and essential safety reminders, viewers are empowered to make informed decisions about their radio modifications.

This video shows how to open the transmit and receive limitations for the ICOM IC-2800H. You can use this if you require operating the radio for MARS, CAP, GMRS, Resource Roads, LADD, etc.

Make sure that you are licensed to operate in these frequencies before transmitting on them. Please follow your local laws. This video is for educational purposes only.

Watch on YouTube: Icom IC-2800 Frequency Expansion

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Have you ever encountered a seemingly ordinary alarm clock that decides to go rogue? In a recent video, a YouTube creator shares the peculiar case of an alarm clock that has mysteriously forgotten how to tell time. Instead of displaying the familiar digits, the clock shows an array of strange characters, leaving its owner puzzled and frustrated. This bizarre malfunction sets the stage for an intriguing DIY journey to revive the malfunctioning device.

Unveiling the Mystery

The video begins with the creator showcasing the peculiar display of the alarm clock, which raises questions about its inner workings. Rather than simply being a minor glitch, the strange characters hint at deeper issues within the device. This peculiar scenario is not just a simple malfunction; it invites viewers to explore the technology behind alarm clocks and the common problems they may face over time.

Taking It Apart

Determined to bring the clock back to life, the creator decides to open it up. The disassembly process is both educational and engaging, as viewers get a sneak peek at the internal components of the clock. The creator explains each part’s function, shedding light on the electronics and mechanisms involved in timekeeping. This hands-on approach not only demystifies the device but also emphasizes the importance of understanding how gadgets function to troubleshoot effectively.

Diagnosing the Issue

As the creator delves deeper, they identify potential culprits for the clock’s bizarre behavior. From faulty wiring to malfunctioning circuits, various issues could lead to the display’s erratic characters. The video serves as a reminder that even the most mundane devices can exhibit complex problems, making it essential for tech enthusiasts to develop troubleshooting skills. The creator encourages viewers to not shy away from tackling electronic repairs, as the experience can be incredibly rewarding.

Bringing It Back to Life

After diagnosing the problem, the creator takes steps to repair the clock. Viewers witness the process of replacing faulty components and reassembling the device. This segment of the video highlights the satisfaction that comes from fixing something that was once broken, reinforcing the idea that with a little patience and ingenuity, many electronic issues can be resolved at home.

In conclusion, the journey of reviving the alarm clock serves as both an entertaining narrative and an educational experience. By sharing the process of troubleshooting and repair, the creator inspires viewers to engage with technology on a deeper level. Whether you’re a seasoned DIYer or a curious beginner, this video is a reminder that even the quirkiest gadgets can be revived with a little effort and creativity.

This Alarm clock has a mind of it's own, it displays strange characters on the screen instead of telling me the time.

Let's open it up and bring it back to life.

Watch on YouTube: This Alarm Clock Forgot How to Tell Time

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