Uhf Range 1 (380-470 Mhz) And Uhf Range 2 (450-520 Mhz) Band - Motorola ASTRO XTL 1500 Detailed Service Manual

Theory of Operation: Main Board Major Sections
3.8.2

UHF Range 1 (380-470 MHz) and UHF Range 2 (450-520 MHz) Band

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