1. Manuals
  2. Brands
  3. Ericsson Manuals
  4. Power Supply
  5. 19A149978P1
  6. Maintenance manual

Ericsson 19A149978P1 Maintenance Manual

Base station power supply 120 volt/60 hz 230 volt/50 hz
Hide thumbs
Table of Contents

Advertisement

Quick Links

ericssonz
Maintenance Manual
BASE STATION
POWER SUPPLY
19A149978P1 - 120 VOLT/60 Hz
19A149978P2 - 230 VOLT/50 Hz
THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED
PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK DO NOT PERFORM ANY
SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING
INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. REFER ALL
SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD.
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.
CAUTION:
TO PREVENT ELECTRIC SHOCK DO NOT USE THIS (POLARIZED)
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE
EXPOSURE.
LBI-38550A
CAUTION

Advertisement

Table of Contents
loading

Related Manuals for Ericsson 19A149978P1

Summary of Contents for Ericsson 19A149978P1

  • Page 1 LBI-38550A Maintenance Manual BASE STATION POWER SUPPLY 19A149978P1 - 120 VOLT/60 Hz 19A149978P2 - 230 VOLT/50 Hz CAUTION THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

  • Page 2: Table Of Contents

    Ericsson Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Ericsson Inc.

  • Page 3: Specifications

    LBI-38550 SPECIFICATIONS* OUTPUT VOLTAGE 13.2 Vdc ±0.6 Vdc @ 29 Amps (F801B) Transmit and Receive Simultaneously 13.2 Vdc ±0.6 Vdc @ 4 Amps (J801) Receive only < 16.0 Vdc @ 3 Amps (J801) 13.2 Vdc ±0.6 Vdc @ 33 Amps (F801B) Transmit only (For 225 watt PA option) 121 Vac ±20% (60 Hz version)

  • Page 4: Important Safety Information

    LBI-38550 IMPORTANT SAFETY INFORMATION 1. SAVE THIS MANUAL - It contains important safety 11. DO NOT operate this product in an explosive atmos- and operating instructions. phere unless it has been specifically certified for such operation. 2. Before using the product, please follow and adhere to all warnings, safety and operating instructions located 12.
  • Page 5 LBI-38550 Figure 1 - 60 Hz Power Supply (19A149978P1, Rev. B) Figure 2 - 50 Hz Power Supply (19A149978P2, Rev. A)

  • Page 6: Description

    Amps. In the 60 Hz power supply (978P 1), the ON/OFF switch The 60 Hz Model (19A149978P1) operates from a (S1) provides line voltage to the power supply through the nominal 121 Vac, 60 Hz source. If a 208/220/240 Vac 60 Hz primary line fuse F1.

  • Page 7: Maintenance

    LBI-38550 load to prevent the output voltage from ever rising above 18 MAINTENANCE volts under any load condition. Under normal conditions jumper P802 is installed connecting the bleeder resistor For disassembly, remove 8 screws and lift off top cover. (SW GND) to A-. In 60 Hz models (Rev. A and earlier), Disassembly is required before working on the power sup- prior to Rev.
  • Page 8 LBI-38550 Figure 3 - 60 Hz Power Supply (19A149978P1, Rev. B) Figure 4 - 50 Hz Power Supply (19A149978P2, Rev. A)

  • Page 9: Fuse Replacement

    Replace units are supplied with power. KEEP AWAY FROM fuse cover and secure using the 2 screws. LIVE CIRCUITS. Table 1 - 60 Hz Power Supply 19A149978P1 SYMPTOM PROCEDURE No output voltage at J801 Check the following: 1.
  • Page 10 LBI-38550 TROUBLESHOOTING PROCEDURE Table 2 - 50 Hz Power Supply 19A149978P2 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, D3 or D3. No output voltage at F801B Check the following: 1.

  • Page 11: Outline Diagram

    OUTLINE DIAGRAM LBI-38550 COMPONENT SIDE (33014904, Rev. F) (33014900, Sh. 1, Rev. F) SOLDER SIDE (33014904, Rev. F) (33014900, Sh. 2, Rev. F) PRINTED CIRCUIT BOARD 50 HZ AND 60 HZ MODELS...

  • Page 12: 60 Hz Power Supply

    ASSEMBLY DIAGRAM LBI-38550 Rev. 0 & Rev. A (Made from 289PS1, Rev. A) Rev. B 60 HZ POWER SUPPLY (Made from 289PS11, Sh. 2, Rev. A) 19A149978P1...

  • Page 13: 60 Hz Power Supply

    SCHEMATIC DIAGRAM LBI-38550 60 HZ POWER SUPPLY 19A149978P1, Rev. 0 & Rev. A (289PS1, Sh. 1, Rev. 1)

  • Page 14: 60 Hz Power Supply

    SCHEMATIC DIAGRAM LBI-38550 60 HZ POWER SUPPLY 19A149978P1, Rev. B (289PS11, Sh. 1, Rev. A)
  • Page 15 PARTS LIST LBI-38550...

  • Page 16: 50 Hz Power Supply

    ASSEMBLY DIAGRAM LBI-38550 (Made from 289PS2, Sh. 2, Rev.Q) 50 HZ POWER SUPPLY 19A149978P2...

  • Page 17: 50 Hz Power Supply

    SCHEMATIC DIAGRAM LBI-38550 50 HZ POWER SUPPLY 19A149978P2 (289PS2, Sh. 1, Rev. H)

  • Page 18: 50 Hz Power Supply

    LBI-38550 PARTS LIST Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg, Virginia 24502 1-800-528-7711 (Outside USA, 804-528-7711) Printed in U.S.A.

This manual is also suitable for:

19a149978p2

Table of Contents