Maintenance manual lbi-38551c these servicing instructions are for use by qualified per- sonnel only. To avoid electric shock do not perform any servicing other than that contained in the operating in- structions unless you are qualified to do so. Refer all servicing to qualified service personnel c...
Copyright © 1992 - 2002, m/a-com private radio systems, inc. All rights reserved. Table of contents page important safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Important safety information 1. Save this manual - it contains important safety and operating instructions. 2. Before using the product, please follow and adhere to all warnings, safety and operating instructions located on the product and in the manual. 3. Do not expose product to rain, snow or oth...
Specifications* output voltage transmit and receive simultaneously 26.0 vdc ± 1.0 vdc @ 15 amps (f801a) 13.0vdc ± 0.5vdc @ 3 amps (j801) receive only vdc @ 3 amps (j801) input voltage 121 vac ± 20% (60 hz version) 230 vac ± 15% (50 hz version) input frequency 60 hz ± 2 hz (60 hz version) 50 hz ± 2 h...
Description the mastr ® ii site equipment 12/24 volt power supply provides up to 429 watts to power a mastr ii 800 or 900 mhz site equipment receiver, system circuitry, and transmitter. The nominal 12 volt output is actually 13.0 vdc and provides a maximum of 3 amperes to power the re- ceiver and sy...
Figure 1 - 60 hz power supply (19a149979p1, rev. A) figure 2 - 50 hz power supply (19a149979p2, rev. A) lbi-38551c 6.
Tors. C9 serves as a resonating capacitor across the secon- dary taps of the transformer. The transformer steps the input voltage down to ap- proximately 28 vac across two secondary windings. Each winding drives two separate full wave bridge rectifiers con- sisting of d1a, b through d4a, b. The rect...
Figure 3 - 60 hz power supply (19a149979p1, rev. A) figure 4 - 50 hz power supply (19a149979p2, rev. A) lbi-38551c 8.
Fuse replacement to replace a defective fuse, perform the following pro- cedure: 1. Place on/off switch to the off position. 2. For fuses f1 (f1 & f4 on ’979p2), f2, or f3; re- move cap from fuse holder and replace fuse with a fuse of the same type and rating. To avoid possible electric shock, do no...
Troubleshooting procedures symptom procedure no output voltage at j801 check the following: 1. Open f1, f3 or s1 2. Ac voltage on w801 3. Open d1, d2, d3, or d4 no output voltage at f801a check the following: 1. Open f1, f2 or s1 2. Ac voltage on w801 3. Open d1, d2, d3, or d4 low output voltage on ...
Troubleshooting procedures symptom procedure no output voltage at j801 check the following: 1. Open f1, f3, f4 or s1 2. Ac voltage on w801 3. Open d1, d2, d3, or d4 no output voltage at f801a check the following: 1. Open f1, f2, f4 or s1 2. Ac voltage on w801 3. Open d1, d2, d3, or d4 low output vol...
Outline diagram (33017704, sh. 1) (33017700, sh. 1) • component side (33017704, sh. 1) (33017700, sh. 2) • solder side printed circuit board 50 hz and 60 hz models lbi-38551c 12.
60 hz power supply 19a149979p1, rev. A assembly diagram lbi-38551c 13.
60 hz power supply 19a149979, rev a (289ps3, sh. 1, rev. C) schematic diagram lbi-38551c 14.
Parts list symbol part no. Description .........................Capacitors.......................... C9 m29/17032400 polypropylene: 8 uf, 660vac, similar to ronken p61a24805h05. .............................. Fuses ............................... F1 m29/09013901 non-time delay glass/ferrule fuse: 10...
50 hz power supply 19a149979p2, rev. A assembly diagram lbi-38551c 16.
50 hz power supply 19a149979p2, rev. A (289ps4 sh. 1, rev. C) schematic diagram lbi-38551c 17.
Parts list symbol part no. Description .........................Capacitors .......................... C9 m29/17032400 polypropylene: 8 uf, 660vac, similar to ronken p61a24805h05. .............................. Fuses................................ F1 m29/09016000 normal blow fuse: 5 amps, 250v; simi...
