Motorola Astro XTL 1500 - Mhz Band

6815854H01-A June 15, 2005
Theory of Operation: Main Board Major Sections 3-13
3.8.3 700–800 MHz Band
The illustrations (Figure 3-10 and Figure 3-11 on page 3-14) and their accompanying tables (Table 3-
7 and Table 3-8 on page 3-14) identify the location of the major sections of the main board.
Figure 3-10. XTL 1500 Main Board Sections (700–800 MHz)—Side 1
Table 3-7. XTL 1500 Main Board Sections (700–800 MHz)—Side 1
1 Secure Connector (J0501) 8 Controller Section
2 Front Connector (J0401) 9 Audio Power Amplifier (PA)
3 RX Back-End (ABACUS III) 10 RX VCO
4 16.8 MHz Reference Oscillator 11 TX VCO
5 IF Filter 12 TX PA
6 RX Front-End 13 TX Power Control
7 Daughtercard
1
2
34
5
6
7
8
9
10
11
12
13
49
50
1
2
1
2
19
20
MAEPF-27876-O