I have found several service manuals for my vintage Technics audio equipment on Ebay for a few bucks each. Whether your email is to order stuff, tell us stuff, or to ask questions, engage your brain to. We are meticulous and give genuine best efforts to produce clean, well-constructed manuals for you. As time allows we will replace the spare section with the same page format as these here in the reproduction manuals section. Overall quality is Very Good to Excellent. Seekers of truth may All others may safely ignore this as you will not find anything of interest. This is 4 originally separate manuals we combine into one.
We always combine shipping on multiple-item orders and do not rip you off on shipping charges. I have built a wire wound pot setup to lower the voltages from my variac, which I have set to 33 volts. Individually-assigned item quality ratings are explained here:. . My idea was to wire in some pots to the board, adjust them to the voltages listed, then install the unit and make final adjustments per the schematic. Overall quality is Very Good to Excellent.
By the way, the part for the origonal xfmr is 4-251V-34800, and is rated at 33 watts. We love our Vintage Audio and other built-to-last electronics equipment in an age of disposable products for a throw-away society. A side-by-side comparison of our reproduction manuals with those from many other vendors will usually reveal an overall better appearance, construction, and print quality. For Something Completely Different Once we had answers to all the questions. We know many of our replies are never seen because of this. Use the page to send us an email. Individually-assigned item quality ratings are explained here:.
May we help you read better. We want you to see a detailed description and individually-assigned quality rating before you purchase. All may not be working, but should be more or less complete. Edit: I now have the service manual and the voltages. As for the power transformer, It is long gone. I was still home at the time. The vast majority of our printed reproduction manuals are Very Good to Excellent on our scale.
The last one in the unit was not made for it, and burned up within a year of it being installed. These used the flourescent display. Pw-1 is the power board that contains the xfmr and other componets; Pw-2 is the board that contains the regulator and chokes. I know Walmart and Ritetaid and Walgreen's reject photos that are takin by pro photographers if printed on back. The original contains several large fold out, fold up pages, and a loose double-side printed 2ft x 3ft poster-size schematic.
They are labeled as: Basic Manual, Service Manual, Parts List and Circuit Descriptions Manual, and Circuit Diagrams and Printed Circuit Boards Manual. Long story short, I need the service manual for a sanyo betacord model vcr 4900. This machine is pretty old. If so make sure your retro transformer has the correct filament voltage. We might sell the kids before our classic silver Pioneer or Vintage Marantz, Kenwood and Sansui gear. Use the page to send us an email. I'll post for others can see.
I see you have yours. If you have a PayPal account and know how to use it, you may without having to contact us first. Then I am going to measure the resistances, and mount a 33 volt Xfmr, and power resisters, and call it a day. He is also the last guy in our area who transfers beta. I might dig around and see, but don't get your hopes up. If it blows up, I will post a Wanted to buy for a fixable unit here, and on other forums. This time-consuming extra service is almost never provided by our competitors.
We will send you an email invoice with combined shipping to save you money along with payment options info. We believe that virtually none of our competitors could truthfully make a similar claim. Part for pw-1 circut board is 143-0-230V-13972, and pw-2 is 143-0-230V-14072. Does it have a green fluorescent display? Also includes originally separate Parts List Manual and Circuit Diagrams manuals. If you would like for us to , you can help by telling your friends and by sharing links to our site in your discussion groups, forums, blogs and web sites. Now we have more questions than answers.
Much was stripped for other repairs. Images may be used with permission only and may not be used for any commercial purposes. But every single item is not and we refuse to give a false impression that they are. No help on the transformer though. However, this is not the first vcr I have taken completely apart, and completely put back together.