5
Handset Unit
Transmitter Section
Connection
Alignment Point Location on Handset Main PCB and Handset RF PCB
Preset
a) Remove the solder on the pattern (refer to the illust. below).
b) Connect DC power supply to battery connector on the handset unit.
c) Turn the DC power supply On while pressing "
*
" and " # " keys, and keep pressing the keys continuously for
approximate 2 seconds.
d) Release keys when entering TEST mode 1 with beep.
Alignment Procedure
VR502
RF Test Point
step
1
Adjustment
VR502
(TX Power)
Remarks
Connect the RF power Meter to the RF test point on the handset MAIN PCB.
Adjust VR502 for a -4.0dBm reading on the Power Meter.
RF PCB
Handset PCB
Power
Meter
RF
Test Point
J603
Battery
Connector
HANDSET Unit
DC Power Supply
DC 3.8V
Remove solder
Содержание FD-4809
Страница 1: ...CORDLESS TELEPHONE PUBLISHED IN JAPAN Nov 1999 SERVICE MANUAL FILE NO 2B0 9909 FD 4809 ...
Страница 8: ...7 BLOCK DIAGRAMS Base Unit ...
Страница 9: ...8 Handset ...
Страница 10: ...9 10 SCHEMATIC DIAGRAMS Base Unit ...
Страница 11: ...11 12 Handset ...
Страница 25: ...26 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 26: ...27 Handset Main PCB ...
Страница 27: ...28 WIRING DIAGRAMS Base Unit ...
Страница 28: ...29 Handset ...
Страница 31: ...32 Handset 7 8 4 15 1 16 17 18 17 5 10 22 11 21 12 20 2 9 6 19 13 14 3 17 RF MODULE HANDSET MAIN PCB ASSY 23 ...
Страница 47: ......