Japan Radio Co. JSS-2150, Service Manual

Page: 92 / 160

OPERATION CHECK AFTER INSTALLATION
3-8
3.2.2 Locating faults by the self diagnosis and the countermeasures
(1) Self diagnosis of the transceiver (Menu 6.1.1)
Test item Description Result Countermeasure if NG
•
Serial I/F: Serial communication
OK: Normal
NG: Error
•
Check wiring between the
NFC-2150, NQD-2253,
and NTD-2150
•
Replace CFG-2150
•
Band1-Input: 2200 kHz input value
•
Band2-Input: 4100 kHz input value
•
Band3-Input: 6300 kHz input value
•
Band4-Input: 8400 kHz input value
•
Band5-Input: 16800 kHz input value
•
Band6-Input: 26200 kHz input value
OK: Normal
NG: Error
•
Check RF cable between
the NFC-2150 and
NTD-2150
•
Adjust tuning output
under Menu 5.5.2 Tune
power
•
Replace CFG-2150
ATU
•
Band1-Tune: 2200 kHz tuning operation
•
Band2-Tune: 4100 kHz tuning operation
•
Band3-Tune: 6300 kHz tuning operation
•
Band4-Tune: 8400 kHz tuning operation
•
Band5-Tune: 16800 kHz tuning operation
•
Band6-Tune: 26200 kHz tuning operation
OK: Normal
NG: Error*
•
Check antenna
connection
•
Check antenna changer
operation and RBK
wiring
•
Check and replace
burned out relays
•
Replace CFG-2150
•
PA mute port: Check PA diagnosis
OK: Normal
NG: Error
•
Check wiring between the
NFC-2150, NQD-2253,
and NTD-2150
•
Replace CFG-2150
•
Replace CAH-2415
•
RBK port: RBK overcurrent detection
OK: Normal
NG: Error
•
Check RBK wiring
(short-circuit)
•
Replace CAH-2415
•
Memory1: EEPROM1 operation
OK: Normal
NG: Error
Replace EEPROM1 (IC102)
•
Memory2: EEPROM2 operation
OK: Normal
NG: Error
Replace CAH-2415
•
Band1-Output: 2200 kHz output value
•
Band2-Output: 4200 kHz output value
•
Band3-Output: 6300 kHz output value
•
Band4-Output: 8400 kHz output value
•
Band5-Output: 16800 kHz output value
•
Band6-Output: 26200 kHz output value
OK: Normal
NG: Error
•
Check RF cable W5
between CMN-2250 and
CAH-2415
•
Check and replace
burned out relays
•
Replace CAH-2415
PA
•
Input voltage: Checking PA 24V
OK: Normal
NG: Error
•
Check RF cable W32
between CBD-2415 and
CAH-2415
•
Replace CAH-2415
TRX
•
Memory: EEPROM operation
•
Digital CKT: FPGA operation
•
BK port: BK signal status
•
PLL lock: Status of PLL for DDS/DUC clock
•
Band1-TX output: 1600 kHz output
•
Band2-TX output: 22000 kHz output
•
Band3-TX output: 27500 kHz output
•
Band4-TX output: RX diagnosis circuit
•
Band1-RX BPF1: 1600 kHz Rx level
•
Band2-RX BPF2: 390 kHz Rx level
•
Band3-RX BPF3: 1590 kHz Rx level
•
Band4-RX BPF4: 3190 kHz Rx level
•
Band5-RX BPF5: 6090 kHz Rx level
•
Band6-RX BPF6: 10490 kHz Rx level
•
Band7-RX BPF7: 17990 kHz Rx level
•
Band8-RX BPF8: 27500 kHz Rx level
OK: Normal
NG: Error
•
Replace CMN-2250
•
If BK port is NG, the
transceiver alarm 023 is
occurred. In this case,
take measures referring
to 3.2.3 List of system
alarms and solutions
without replacing the
CMN-2250
* When the resonance frequency of the TX antenna is close to the ATU self diagnosis frequency, NG
may be occurred. In this case, adjust the wire length such as the lead wire of the TX antenna.