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.
Excellent printing quality. A complete and very useful manual with all details.
Text excerpt from page 1 (click to view)
ORDER NO. KMS0103092S3
DIGITAL PROPRIETARY TELEPHONE
KX-T7531LA / KX-T7531LA-B / KX-T7533LA / KX-T7533LA-B / KX-T7536LA / KX-T7536LA-B / KX-T7550LA / KX-T7550LA-B
(for Latin America) Please file and use this supplement manual together with the Service Manual is mentioned below.