MT930B
Service Manual
Page 3-1
CHAPTER 3
CONTROLS AND CONNECTIONS
FRONT PANEL
1.
Meter
—Signal strength, Carrier-Noise, Tune Indicator.
2.
Selector
—Three-position slide switch. Selects meter options.
3.
Remote
Control Indicator
—Red LED indicated remote active.
4.
Summary Alarm Indicator
—Red LED is on when alarm is triggered.
5.
Menu Knob
—Rotary switch. Selects available menus.
6.
Display
—LCD panel. Displays menus and submenus.
7.
Select Knob
—Rotary switch. Scrolls through available Menu pages.
8.
AFC On/Off
—Two-position slide switch enables/disables AFC.
9.
AGC On/Off
—Two-position slide switch enables AGC.
10.
70 MHz Test
—BNC connector for IF monitoring.
11.
Video Test
—BNC connector for baseband video monitoring.
12.
RF Input Port Indicator
—Green LED shows which input is active.
13.
Edit
—Pushbutton. Allows editing of selected items.
14.
Save
—Pushbutton. Saves any changes made in Edit mode.
15.
Left
—Pushbutton. Moves cursor to the left (if any field is there).
16.
Right
— Pushbutton. Moves cursor to the right (if any field is there).
17.
Fine Tune
—Potentiometer with center-detent to adjust IF frequency.
18.
MGC
—Potentiometer to set MGC level when used with AGC switch.
19.
Audio #1
—RCA phone jack. For monitoring Audio #1 output.
20.
Audio #2
—RCA phone jack. For monitoring Audio #2 output.
21.
Audio #3
—RCA phone jack. For monitoring Audio #3 output.
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 ...