The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
Text excerpt from page 7 (click to view)
communication device (computer, modem, fax, answering machine, etc.) through this unit using the LINE 2/DATA jack (�Data Port).
- If the LINE 2/DATA indicator lights, the communication device is in use. Use LINE 1 to make a call. Otherwise the communication device may not operate properly.
4. FOR SCHEMATIC DIAGRAM
1. SW 1: Hook switch. 2. SW 2: Ringer selector. 3. DC voltage measurements are taken with electronic voltmeter from negative voltage line. 4. (Add 40 mA to telephone line from the loop simulator.) 5. Off-hook condition 6. No Mack: Handset Mode 7. This schematic diagram may be modified at any time with the
