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.
Quick site processing. A complete and very useful manual with all details. Thank you!
Text excerpt from page 12 (click to view)
Sect. I1 Page 4
Model 130B
H O R I Z O N T A L B A L A N C E ADJUSTMENT
RO
JUMPER
After warm-up:
1. Short together the horizontal INPUT terminals.
5. Set HORIZ. SENSITIVITY to VOLT/CM.
1 MILLI-
2. Set AC-DC switch to DC. 3. Set HORIZ. SENSITIVITY to CAL. VERNIER to CAL.
Turn
6 . Return the spot to the major vertical axis with the coarse (screwdriver) HORIZ. DC BAL. control or with the fine (knob) control if the unbalance is slight.
7. Repeat steps 2, 3 4, and 5 if necessary.
NOTE: A separate adjustment (Bal. Adj. on the etched board) is provided to balance the VERNIER.
4. Adjust the HORIZ. POS. control to place the
left edge of the calibrating signal trace on the major vertical axis.
