The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
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.
Text excerpt from page 28 (click to view)
HELP
Sheet attachment positions and procedures of processing the flexible boards/harnesses are shown.
THE METHOD OF ATTACHMENT OF FP-537 FLEXIBLE BOARD
1 Fold dotted line parts of the FP-537 flexible board as shown in figure. Fold Fold 4 Roll the the FP-537 flexible board 1.5 times, in the direction of arrow A.
Adhesive tape Adhesive tape A
Adhesive tape
Fold 5 Put the adhesive sheet and FP-537 flexible board on the hinge assy according to the position of the boss.
2 Pass the FP-537 flexible board through the flexible clamp. Flexible clamp