It's great to be able to obtain a precious technical information for a real old equipment. The one I got helps me a lot in the area of wiring diagram to repair my antique. PDF gave me clear enough information to find out thr details. Thanks for giving me the oppotunity to be able to access to almost vanished informations.
Good quality for the scan, complete, but as usual for Tascam, not so comprehensive !
Text excerpt from page 10 (click to view)
5. To check the 3 Pin I/F After pressing � 7 � button, the following menu appears on the LCD.
PX-653 TEST Program Ver.2.21
7....RS-232C I/F Set the H/T on the I/O box. Select the I/F switch to 3 pin SIF. Press � Enter � key. This test is executed o n c e . In case you want to check this continuously, select aging test at test mode menu.
Set the H/T(DT-9000) , I/O box (DT-9060I/O) and loop back connector as follows;
Loop back connector
6. AGING TEST This test can be check the RS232C I/F and 3 pin I/F. When you select the aging test at test mode menu, you can check the I/F continualy. Each preparation is same for individual test.