Apex Digital HT-170 Especificações descarregar pdf (Página 61)

APEX™ Exciter Incorporating FLO™ Technology

Details of the Exciter Status Screens Navigating the LCD Display Screens

2604s300.fm

03/08/07 888-2604-001 Page: 3-21

WARNING: Disconnect primary power prior to servicing.

3.4.5.2.1 PLL Diagnostics

Refer to Figure 3-19. This screen is not used phase lock loop boards where the PLL Board

10 kHz Reference entry, shown in Figure 3-18, is labeled N/A. It is used for units where

the PLL Board 10 kHz Reference entry is labeled Yes.

The Xtal Aging (crystal oscillator aging) control is used to set the frequency of the internal

10 MHz crystal oscillator when no external reference is used. The initial setting should

typically be in the range of 3000 to 3500.

PLLDiagnostics.bmp

Figure 3-19 PLL Diagnostics

3.4.5.3 Up Converter Board Status Screen

UpConverterStatus.bmp

Figure 3-20 Up Converter Board Status Screen

The exciter output amplifier does not have a separate screen. It parameters (+/-15 Vdc and

RF detector output) are included in this screen. The UDC Interface Board screen is shown

in Figure 3-20, with screen entries listed below.

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 147 148

Sem comentários

Apex Digital HT-170 Especificações Página 61