I specialize in Japanese SLT turntable repair & calibration. I have written on internet audio forums as Professor Bizzt.
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Online Auction Description
The Yamaha PX-2 (and to a far lesser extent, the PX-3) Straight Line Tracking (SLT) direct drive turntables have a reputation for failed slot type photo interrupters on their Sensor C. Boards. These boards are no longer available and component level repair is necessary to put the board back into service. A PX-2 or PX-3 suffering from this exhibits the following symptoms:
1- Automatic start initiated by the 30cm, 25cm, or 17cm (30cm & 17cm on the PX-3) start buttons do not function.
2- Automatic tonearm lift and return at end of play does not function.
3- Shining a strong light into the photo interrupter area with the rear tonearm cover removed temporarily allows (albeit erratic) automatic operation.
4- Manual left and right cuing functions still work properly, provided there are no slipping drive issues.
Replacing the three slot type photo interrupters normally solves this problem.
You will be required to remove the Sensor C. Board and ship it to me for repair. The disassembly procedure at your end is a fairly simple one hour job and the part is small and lightweight, facilitating easy packing and shipment.
Upon receipt, I test your Sensor C. Board, rebuild it with new photo interrupters if necessary, clean both limit switches, and thoroughly test the sensor board with my custom built sensor board circuit tester. You also have the option to send in your whole tonearm or turntable (recommended), however that must be done via my Webstore Yamaha PX-2 & PX-3 tonearm rebuild service listing instead. Please be sure to read that listing BEFORE you select this service.
This service comes with detailed step-by-step PDF instructions on how to remove and reinstall the Sensor C. Board. The benefit to sending in the Sensor C. Board as opposed to the whole turntable is much lower cost and much less chance for damage in shipping.
Please note: It's MANDATORY that you have the diagnostic skills necessary to repair a PX-2 or PX-3 turntable on your own without additional help beyond the instructions I provide. In addition to sensor board issues, there are almost always carriage drive issues that you will probably have to deal with. These issues are discussed in my Webstore PX-2 & PX-3 tonearm rebuild service listing.
Do not purchase my Sensor C. Board rebuild service if you are not qualified to perform the necessary diagnostics without additional help from me; please purchase my tonearm service or whole turntable service instead. Free technical assistance is NOT included for my Sensor C. Board service beyond the PDF documents I supply.
There's a $50.00 diagnostic fee for boards sent to me that test OK, and the $150.00 service charge does not apply in this case. USPS priority mail shipping and $200.00 insurance is included (U.S.A. only) for both the $50.00 fee and $150.00 fee. International shipping and insurance (if available) will be determined by country and sent via USPS priority mail international. International shipping is extra.
NOTE: It's mandatory that you contact me for instructions BEFORE you remove and pack your Sensor C. Board.
Like many, I'm new to Webstore.com and ask for your patience while I build my feedback score here. For now, I encourage you to check my ebay feedback (100% with a count of 582 as of 09/21/17; joined in 2003) and to research my audio electronics service work reputation online, as I want anyone that works with me to feel totally comfortable.
All of my online audio forum contributions (however I'm now taking a hiatus from all online forum contributions) were done under the Professor Bizzt user name, so that is the user name internet search term to use. My ebay and webstore.com user names are Professor-Bizzt and Professor_Bizzt respectively. I also maintain a youtube account using the Professor Bizzt name.
If you search internet audio forums for references to Professor Bizzt (very often misspelled), you will find commentary on my work. However, please keep in mind that many of my clients don't post on forums, and that forums are unfortunately populated to some degree with troll and quasi-troll commentary. Using good judgment to navigate through the percentage of deception and vitriol is required to get to the real truth.
DO NOT COMMIT TO PURCHASE THIS SERVICE IF YOU: Are unclear of what this is. Don't know how to use it responsibly. Are not careful with your installations. Tend to leave undeserved, inaccurate, and irrational feedback for others. Intend to criminally scam a seller. Do not intend to FULLY and PROMPTLY honor your purchasing commitment and payment process.
Questions that I cannot respond to include: How does this sound? How does it compare to XYZ? How will it sound used with XYZ? Do you have an opinion on XYZ? Will you trade for XYZ? Questions where the answer is in the listing's text. Aggressive or derogatory comments or questions.
In short, my time is limited. What I list for sale is intended for experienced, reasonable, and honorable audio enthusiasts that know the meaning of respecting someone else's time.
This listing was painstakingly composed to be thorough and accurate. Everything I know has already been declared and includes what is stated in it, no more, and no less. By no more, I'm also making clear that I cannot provide communication now nor in the future to anything not strictly related to the item in this listing.
If you feel your message to me was not successfully delivered, please contact me via the following email address (I'm not using the normal email syntax to avoid spam bots of course): professor_bizzt at centurylink dot net
Condensed policy statement: Unfortunately some people use my ads to seek advice in performing their own repairs. I do not give away my time to partake in this. I do not offer conversation or education, as my talents and aspirations do not lie there. I only offer commitment, conscientiousness, and competence in the repair of audio electronics and the design and marketing of custom made parts.
Please keep your emails very short and strictly on topic. My ads are long to satisfy those that require every detail, but that does not mean Iâm interested in, have time for, or am capable of lengthy chat. I refrain from subjective oriented or design topology discussions pertaining to my work because my electronic service rates are not structured to accommodate the significant added time and cost discussion of this nature entails. I'm only offering to perform high quality work and to market high quality custom made parts as per my ad descriptions, no more, and no less.
I strongly encourage you to make audio equipment decisions based on an understanding (or even a partial understanding) of the actual hard science, not audiophile subjective repartee. Declaring subjectivism king does a disservice to the healthy evolution of this industry. To ask another, ANY other (myself included), for a definitive subjective analysis of audio gear is to put yourself at the mercy of their psychology as well as their physiology, and that isn't going to help you.
Finally, please do not contact me if you are more impressed with getting a job done quickly than getting it done correctly. I do everything I can to repair equipment promptly, but there are times when repairs take longer than expected. Affordable pre-owned backup audio gear is commonly available, please make use of this while your audio component is repaired.
USPS priority mail shipping and $200.00 insurance is included (U.S.A. only) for both the $50.00 fee and $150.00 fee.
International shipping and insurance (if available) will be determined by country and sent via USPS priority mail international. International shipping is extra.
The seller ,
assumes all responsibility for the contents of this listing