Panasonic KX-FPC91 Service Manual

Also see for KX-FPC91: Operating instructions Operating instructions

Contents

Panasonic KX-FPC91 Service Manual Manual pdf 121 page image

3.2.3. BASE BOARD3.2. CORDLESS3.2.1. GENERAL INFORMATIONThis procedure has 2 sections. The first section instructs the technician on how to align the HANDSET. We recommend aligningthe HANDSET first, since you will need the HANDSET to align the BASE UNIT. The second section aligns the BASE UNIT. Youcan use either section separately, or together to align the entire cordless phone unit.At the beginning of each section, you will find a preparation procedure instructing you on how to prepare the unit to the point ofplacing the unit in TEST mode. Please follow this procedure to insure proper alignment.Each section´s procedure consists of Adjustment Items adjusting one specific variable hardware component.Each Item lists the equipment needed, how to connect and setup the equipment, how to make the adjustment, and how to verifythe adjustment if necessary.Before the actual procedure, you will find a procedure detailing how to place that part in TEST mode. You will have to perform thisprocedure before each individual Adjustment Item.Once aligned, please remove all equipment connections and solder points, and reassemble the unit. As a final check, power up thephone and check for HANDSET linking with the BASE UNIT.3.2.2. EQUIPMENT1. Radio Tester : Marconi Model 2295A or later.2. 4.5 digit Digital Multimeter : B&K Model 2833 or compatible.3. Oscilloscope, single or dual channel : Panasonic VP-5512P100 or compatible.4. Telephone Analyzer : B&K Model 1050 or compatible.5. DC Power Supply, capable of supply 3.9V DC at 100mA NOTE : only needed if Telephone Analyzer does not have DC VOLTSoutput available.6. Corded Telephone.7. High Frequency Cable : BNC end to open end.8. Audio Cable : BNC end to alligator clip end.9. High Frequency Adjustment Tool:10. Isolation Capacitors, quantity of 2, 10 μF maximum, 50V DC or greater.11. Soldering Iron, solder, and various tools.3.2.3.1. PREPARATIONPlease prepare the ANALOG BOARD before performing any adjustment procedures. Refer to the ANALOG BOARD REFERENCEDRAWING for connection and test point locations.1. Remove the bottom frame of the base unit.2. Use the telephone cord to connect the fax machine line and PHONE TEST #1 on the telephone analyzer.3. Use the telephone cord to connect the corded telephone and PHONE TEST #2 on the telephone analyzer.4. Solder the plus and minus sides of the RF coaxial cable to ANT and RF GND.5. Connect the BNC connector on the RF coaxial cable to ANT on the Marconi.3.2.3.2. SYMPTOM/REMEDY TABALEIf you have one of the listed symptoms, please refer to this table and make the appropriate adjustments.121KX-FPC91