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.
The quality of this manual is good. It has all schematics and setup information for both the MDS-B3 and the MDS-B4. The scan quality is quite good, all pages are readable, This service manual also contains scans of the operating instructions from the User manual.
Text excerpt from page 4 (click to view)
SECTION 2
CIRCUIT ADJUSTMENTS
1. SERVO CIRCUIT
ITEM MODE ADJUSTMEN T POINT R592 CHECK POINT PJ01 V.OUT PT01 Pin 3 TEST EQUIPMENT TEST TAPE INPUT SIGNAL
**[Adjustment Procedure]** (1) Preparation ¨çInsert Test tape.(DN-1) ¨èSet the oscilloscope to the CHOP mode. Connect CH1 to the SW PULSE (PT01#3) and CH2 to the VIDEO OUT (PJ01) and trigger the with the signal from CH1. (2) Adjustment Adjust R592 to trigger the complex video signal of CH-2 to CH-1 H.SW so that the distance from A(B) Head selection point of H.SW signal to the starting point of V-sync signal is 6.5 ±0.5H.