YOKOGAWA DL2700 Series, Руководство по обслуживанию

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ADJUSTMENTS
SM 700820-01E
3
3.6 Power Supply Adjustment
3.6 Power Supply Adjustment
Procedure
1) Remove the main unit covers.
2) Turn the unit upside down and remove all coaxial cables from the attenuator boards.
3) Turn the unit again and remove three fixing plates, the printer case (cut the cable bind)
and the plate under the printer.
4) Remove all the boards inserted to the mother board.(No. 27, 31 to 38 on CMPL 700820-
01E Page 3)
5) Remove the shielding case of those boards.
6) Remove the CN7 and CN8 connectors from mother board.
7) Remove the main unit covers.
8) Connect the Digital Multi Meter (Voltage Meter) to No. 1 and No. 8 contacts of CN2 on
the power supply unit. (Refer to Figure 3.1)
C506
CN2
DMM
VR501
Figure 3.1 Connection method and Power supply adjustment point location diagram (Side View)