Maintenance
Page 6-42
Service Manual
MT930B
C/N Signal Meter Adjustment
Adjustment Conditions:
•
Connect the equipment as in Figure 6-19.
10284
Figure 6-14. Equipment Setup for Signal Meter Adjustment
•
Receive frequency: 1210 MHz
•
RF input port: #1
•
IF BW: 27 MHz
•
LNB power: OFF
•
AFC: ON
•
AGC: ON
Adjustment Procedure:
Make sure the C/N and signal level detection circuit adjustments have been
completed before performing this adjustment.
1. On page 2 of Menu 1, press the EDIT pushbutton while pressing the RIGHT
and LEFT pushbuttons to open the signal meter adjustment menu.
2. Press the LEFT pushbutton to bring the display to where it no longer
changes.
3. Follow the directions on the LCD, apply input to the unit, and press the
SAVE pushbutton.
4. Press the RIGHT pushbutton to change the display, and perform the same
operation as in steps 2 and 3.
5. When the LCD display stops changing, even though the RIGHT pushbutton
is pressed, press the EDIT pushbutton to exit this menu.
Summary of Contents for mt930b
Page 3: ...MT930B Service Manual Page i ...
Page 10: ...General Information Page 1 4 Service Manual MT930B THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 22: ...Controls and Connections Page 3 4 Service Manual MT930B THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 86: ...Options Maintenance Page 7 2 Service Manual MT930B THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 90: ...Drawings Page 9 2 Service Manual MT930B 10264 Figure 9 1 MT930B Block Diagram 1 ...
Page 91: ...Drawings MT930B Service Manual Page 9 3 10265 Figure 9 2 MT930B Block Diagram 2 ...
Page 92: ...Drawings Page 9 4 Service Manual MT930B 10266 Figure 9 3 MT930B Block Diagram 3 ...
Page 93: ...Drawings MT930B Service Manual Page 9 5 10267 Figure 9 4 MT930B Block Diagram 4 ...
Page 94: ...Drawings Page 9 6 Service Manual MT930B 10268 Figure 9 5 MT930B Head Phone Schematic ...
Page 95: ...Drawings MT930B Service Manual Page 9 7 10269 Figure 9 6 MT930B RF PC Board Schematic ...
Page 96: ...Drawings Page 9 8 Service Manual MT930B 10270 Figure 9 7 MT930B Converter Module Schematic ...
Page 97: ...Drawings MT930B Service Manual Page 9 9 10271 Figure 9 8 MT930B Main PC Board Sheet 1 of 3 ...
Page 98: ...Drawings Page 9 10 Service Manual MT930B Figure 9 9 MT930B Main PC Board Sheet 2 of 3 ...
Page 99: ...Drawings MT930B Service Manual Page 9 11 10273 Figure 9 10 MT930B Main PC Board Sheet 3 of 3 ...
Page 100: ...Drawings Page 9 12 Service Manual MT930B 10274 Figure 9 11 MT930B Power Supply Schematic ...
Page 101: ...Drawings MT930B Service Manual Page 9 13 10275 Figure 9 12 MT930B IF Filter Block Schematic ...
Page 102: ...Drawings Page9 14 Service Manual MT930B 10276 Figure 9 13 MT930B Audio IF PB01 Schematic ...
Page 103: ...Drawings MT930B Service Manual Page 9 15 10277 Figure 9 14 MT930B Audio Out Schematic ...