The link for the crossover schematic is broken. Can you post the diagram again? Is it worth while to change the cables too? Btw, are the pots wire wound type
Download it here https://www.hifiengine.com/manual_library/akai/sw-156.shtml
The link for the crossover schematic is broken. Can you post the diagram again? Is it worth while to change the cables too? Btw, are the pots wire wound type
Fantastic story. What's the name of that pianist?You guys are making me feel even older than I already did! I was an Akai dealer back around 1980 and sold several of the "vintage" piece you have proudly displayed. The only Akai product I still have and love is my GX-747dbx, one of the finest consumer reel to reel decks ever made. I made some terrific live recordings on this deck and still treasure them. I was asked to record an early exchange student from China who performed Bach's Goldberg Variations as a student. I used a pair of Fostex dynamic cardiods (I was dealer for them, too) and got a fabulous recording. A couple of years ago I got curious as to whether she pursued her interest in piano and searched her out via Google and was pleased to find that she's now a world renowned pianist. I am proud to own what is certainly the finest early recording of this performer, made possible in part by the Akai GX-747dbx.
I have a fully refurbished Akai AA-1200 powering my main system, and I love it - sounds superb and a real stunner aesthetically.
I also have an Akai GXC-709D cassette deck which unfortunately doesn't get a lot of use, but it's awfully pretty to look at.
I have three Akai tape decks -- a 250D reel deck, a GX-230D reel deck, and a GX-F31 cassette deck. My cousin was a service manager for Akai in California in the 1970s. He got me interested in the brand by demoing some of the gear for me in his home system and telling me about the benefits of the long-life glass and crystal ferrite GX tape heads.
You guys are making me feel even older than I already did! I was an Akai dealer back around 1980 and sold several of the "vintage" piece you have proudly displayed. The only Akai product I still have and love is my GX-747dbx, one of the finest consumer reel to reel decks ever made. I made some terrific live recordings on this deck and still treasure them. I was asked to record an early exchange student from China who performed Bach's Goldberg Variations as a student. I used a pair of Fostex dynamic cardiods (I was dealer for them, too) and got a fabulous recording. A couple of years ago I got curious as to whether she pursued her interest in piano and searched her out via Google and was pleased to find that she's now a world renowned pianist. I am proud to own what is certainly the finest early recording of this performer, made possible in part by the Akai GX-747dbx.
the problem is most likely a violation of the bias current. We need to check the capacitors.Hello guys
I have recently acquired an Akai GX747 stored in a room for 20 years it plays but it misses the high frequency maybe this from my tapes cause they are very old (bright brown color). In addition recording is very week so I have to turn all the line nop to max and the recording also misses the high frequency. I tried to check the PCB voltage in the preamp section all readings are higher. than the schematics with a 1% and this seems reasonable due to the resistors and caps age. However in left channel the 2SC458 is reading much lower than the right channel. Is there any notes or advices to overcome these or I have to go all the way and change everything (resistors and caps)
I have replaced the 2SC458s with new ones and. it is the same, I tried. with new 2240 and it is the same. The noise in the Oscilloscope is like a white noise in recording mode around 80k to 100k hz with both monitoring line and tape
Also the bar meter is disfunctioning in both line and tape mode.
thanks