Instruction/ maintenance manual of the product LBI-38378D Ericsson
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LBI-383 78D M-P A VHF POR T ABLE FM RADIO T ABLE OF CONTENTS REAR CO VER ASSEMBL Y . . . . . . . LBI-38597 FR ONT CO VE R ASSEMBL Y (EARLIER) AND CONTR OL BO ARD . . . . . . . . LBI-38384 FR ONT CO VE R ASSEMBL Y (LA TER) LESS CO NTROL BO A R D . .
Copyright© No vember 1989, General Electric C ompany T ABLE O F CO NTE NTS Page SPECIFIC A TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 OPT IONS AND A CCESSORIES . . . . . . . . . . . . .
SPECIFICA T IONS* GENERAL Freq uency Bands FCC TYPE DOC 146 - 16 2 M Hz AXA TR-1 82-B 5 TR-18 2 -D2 157 - 17 4 M Hz AXA TR-1 82-C 5 TR-18 2 -D2 136 - 150.
OPTIONS AND A CCESSORIES Chargers Radios, Antennas, Batteries Carrying Accessories A udio Accessories LBI-3837 8D 4.
INTR ODUCTION The M-P A radio is a high qu ality microproce ssor con- trolled synthesized portable FM radi o. M-P A opera tion is hig hlighted by the radi o’ s programming versatility . This al- lows t ailored operation of the portable radio to me et the needs of the radio system and the i nd i vidua l users.
• Programmable Multi-T one Channel Guard (CTCSS) - Channel Guard tone frequencie s within the ran ge of 67 Hz to 210.7 Hz, including all of the standard EIA fre quencie s, can be pr ogrammed for enc od ed /decode d op eration. • Programmab le Multi-Code Digital Channel Guard - S imilar capability as with tone Ch annel Guard is pro v ided.
Figure 1 - Sy stem Model Figure 2 - Scan Model Figure 3 - Select Model Figure 4 - Side View (All Mo dels) LBI- 38378D 7.
REAR CO VER ASSEMBL Y The Rear Cover Assembl y houses the RF Bo ard in the die-cast al uminum case. The com p lete asse mbly consists of the VHF RF Board, aluminum case, top antenna jack, side (UD C ) antenna jac k and various ha rd ware. The RF Board’ s circuitry includ es the transmitter , re- ceiv er and the frequency synthesizer .
pack in need of a char ge will cause the low battery "BA T" status flag on the radio to turn on. This flag will turn on when the battery pack’ s v oltage dro ps belo w approxi mately 6.8 V olts. The low batt ery alert tone will also be hear d wh en the ba ttery pa ck nee d s charging .
T ABLE 2 - UDC PIN FUNCTIONS PIN NAME INPUT OR OUTPUT USE 1 GR OUND ------ - Case Ground 3 UDC RX A UDIO Output T est Point For Speaker Audio 4 SWB A TT Output Switched Accesso ry Powe r 5 EXT PTT Inp.
• T wo in dividual T ype 99 T on e Group Sets • Control Knob selects Channels, Modes or Chan nel Guard* • Menu Selections* • Home Mode or Home Channel (depend ing on Control Kno b progra mming.
P AHC1C Belt Clip P AHC1D Swivel Mount with Belt Loop P AHC5N Case, Le ather , with Belt Loop (Shor t Case) P AHC1F Case, Leather , with Belt Loop (T all Case) P AHC1K Shou lde r Strap, Lea t he r , with Mounting Plate P AHC5R Holster , Plastic.
DISASSEMBL Y / REASSEMBL Y In the event internal service is required, disassemble the radio in acco rdance with the follo wing outlined step s. See Figures 6 - 10. Reassemb le the unit by following the ste p s in re verse orde r . O bserve scre w lengths and do not over tighten the screws when reassemb ling th e unit.
RF Board Access Holes are located in t he RF Board shield for alignment of the R eferenc e Oscillator ( U3 ), Modulation Balanc e pot ( R18 ), VCO Mo dulation pot ( R19 ), 2nd Local Oscillat or Adju stm ent ( T1 ), an d the Qu adrature De tector Adjustment ( T2 ).
TION: In stallat ion o f screws that are longer than the origi- nals may damage the LCD Board, flex circuit s or the threads. T o remove the Control Board, remo ve the T orx scre w ( E ) in the l ower left-hand corner that sup plies battery po wer to the board.
BLOCK DIA GRAM Figur e 11 - Rea r Cover Ass em bly Block Diagra m LBI-3837 8D 16.
BLOCK DIA GRAM Figure 12 - Front Cover Assembly (Earlier) And Co ntrol Board Blo ck Diagram LBI- 38378D 17.
Later Front Cover Assembly Ke ypad Flex Removal T o remove the K eypad Flex, first remov e the UDC Flex/UD C/M onit or Butto n/PTT Switch assembly as pre- viou sly st ated. Next remove the scr ew securing the em er- genc y switc h suppor t ( G ) then remo ve the support.
An important point after buying a device Ericsson LBI-38378D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ericsson LBI-38378D yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ericsson LBI-38378D - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ericsson LBI-38378D you will learn all the available features of the product, as well as information on its operation. The information that you get Ericsson LBI-38378D will certainly help you make a decision on the purchase.
If you already are a holder of Ericsson LBI-38378D, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ericsson LBI-38378D.
However, one of the most important roles played by the user manual is to help in solving problems with Ericsson LBI-38378D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ericsson LBI-38378D along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
