Section 2
INSTALLATION #1

Uniden 8719 Chassis (11.1125 crystal)
1. Remove the transceiver case and the DS-400 case.
2. Locate and identify the MB 8719 PLL chip-normally close to the channel selector.
3. Remove the MB 8719 PLL chip. Exercise caution not to damage the PC board during this exercise.
4. Locate R72 and cut one lead.
5. Connect the shields of Coax #1 and Coax #2 to ground. See Fig. 2.
6. Connect the center lead of Coax #1 to TP-10. See Fig. 2.
7. Connect the center of Coax #2 to TP-9. See Fig. 2.
8. Loop Filter installation: Locate the 10K trimpot and 10uf capacitor supplied with the 400. Solder the wiper of the trimpot to ground (see Fig. 2). Install the 10uf capacitor between one end of the trimpot and TP-9. Observe polarity; the negative (-) lead of the capacitor must connect to the trimpot. Remember to keep leads as short as possible during this procedure.
(See page 6)

Fig. 2 - Location of Test Points
(MB-8719 PLL, 11.1125 crystal)

9. Connect the black wire to radio circuit ground near the power supply or modulator section.
10. Connect the red wire to a 12V source in the radio. (Example: to the power switch normally located on the back of the volume control.)
11. Remove C70 or equivalent from the radio. (Fig. 2)

Fig. 3 - Location of Test Points
(MB-8719 PLL, 11.1125 crystal)

12. Cut the jumper wire (see Fig. 2, labeled #47), located behind the channel selector to comply with FCC regulations.

This completes the installation procedure. Before operation, the DS-400 must be programmed and the radio must be realigned. Go to the programming section and proceed.