JRC JSS-2250 Instruction Manual page 160

Maintenance & Inspection
Transceiver
(Cont'd)
Unit Name Test Item
DGT CKT
AF output
LCD&LED
Controller/
Data terminal
6-4
Memory1
Memory2
Memory3
PLL lock
Band1-RX BPF1 :2187.5 kHz DSC loop
Band2-RX BPF2 :4207.5 kHz DSC loop
WKR
Band3-RX BPF3 :6312.0 kHz DSC loop
MODEM
Band4-RX BPF4 :8414.5 kHz DSC loop
Band5-RX BPF5 :12577.0 kHz DSC loop
Band6-RX BPF6 :16804.5 kHz DSC loop
Band7-RX BPF7 :Wide-band filter operation
DSC/NBDP loop1 :AF modem loop
DSC/NBDP loop2 :AF modem & TRX loop
Memory1
Memory2
Memory3
AF connection to TRX
Screen and ALM lamp display operation
Note: Check visually if every dot and red and
green ALM lamp alternately work normally
for 3 seconds.
Sound test
Speaker
Note: Check if the 1500 Hz tone sounds correctly.
After that, press ENT on the popup screen
to finish this process.
Print out test
Printer
Note: When the printer is connected, check the
print result in the printed data output.
・ DTE memory1
・ DTE memory2
・ DTE LCD&LED
DTE
Note: Check visually if every dot alternating colors
of red, green, blue and white with the lamp
blink work normally for 5 seconds.
・ DTE buzzer
Note: Check if the buzzer sounds correctly. After 3
seconds, sounding stops automatically
:FROM operation
:EEPROM operation
:SDRAM operation
:State of PLL for DDS clock
Contents
:FROM operation
:EEPROM operation
:SDRAM operation
:FROM operation
:SDRAM operation
:Data terminal screen and
lamp operation
:DTE buzzer operation
OK: Normal
NG: Abnormal
Results
OK: Normal
NG: Abnormal
OK: Normal
NG: Abnormal
DONE
DONE
DONE
OK: Normal
NG: Abnormal
DONE
DONE