JRC JSS-296 -, Руководство по обслуживанию

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5.5 Message of JSB-196GM Operation Check and Management
Message Condition Management Remark
DSP SERIAL
Serial communication is unusual
between CPU (CDJ-1960) and
DSP (CMN-1960). (a) Check the cable connection between
CDJ-1960 (J2/J3) and CMN-1960
(J23/J22).
(b) Check the cable connection between
CAH-1960 (J9) and CMN-1960 (J21).
NO ATU Serial communication is unusual
between JSB-196GM and
NAH-692/695/698. (a) Check the cable connection between
JSB-196GM and NAH-692/695/698.
(b) Check the cable connection between
CDJ-1960 (J1) and CAH-1960 (J8).
(c) Check the cable connection between
CDJ-2692 (J2) and CBG-2692 (J5).
(d) Check the cable connection between
CBG-2692 (J8) and CHASSIS.
(e) Check the I/F-circuit on the CAH-1960.
(PHT1, 2, 3, T20 etc.)
(f) Check the I/F-circuit on the CBG-2962.
(PHT26, 27, 28 etc.)
NAH-NFC SERIAL
Serial communication is unusual
between NAH-692/695/698 and
NFC296/896. (a) Check the cable connection between
NAH-692/695/698, NQD-4190 and
NFC-296/896.
(b) Check the cable connection between
CDJ-1960 (J1) and CAH-1960 (J8).
(c) Check the I/F-circuit on the CBG-2962.
(PHT23, 24, 25 etc.)
(d) Check the I/F-circuit on the CDJ-2960.
(PHT1, 2, 3 etc.)
CMN-1960 TRX UNIT RX circuit is unusual or Exciter
output is insufficient. (a) Check the cable connection between
CDJ-1960 (J2/J3) and CMN-1960
(J23/J22).
(b) Check the cable connection between
CAH-1960 (J8) and CMN-1960 (J21).
CAH-1960 PA UNIT
RF output of CAH-1960 is less
than 5W at the time of the NFC
check 1. (a) Check the cable connection between
CDJ-1960 (J1) and CAH-1960 (J8).
(b) Check the cable connection between
CAH-1960 (J1) and CMN-1960 (J12).
(c) Check the RF-Transistor (TR3-TR9).
(d) Check the LPF circuit. (C50-C140,
K10-K21 etc.)
BATTERY The battery voltage when turning
off a charger is less than 20V. Check the Battery voltage.
BATTERY OUT The electric discharge current of
a battery is more than 10A at the
time of AC operation Check DC current of external unit. (VHF,
GPS, Lamp etc.)
NAH CHARGER
The output voltage of the battery
charger is less than 24V. Check the charge voltage setting (CBG-2692
RV1, RV2).
(Refer to 4.2.2)
NAH PA 80V PA80V power supply of NAH is
less than 70V or more than 90V. (a) Check the cable connection between
CBG-2692 (TB19/TB20) and
CMC-2692/2695/ 2698(TB1/TB2).
(b) Check the 80V setting (CBG-2692
RV3).
NAH ARRESTOR
The voltage of a serge
Suppressor circuit is as follows.
JSS-296: Less than 150V
or more than 250V.
JSS-596: Less than 250V
or more than 350V.
JSS-596: Less than 300V
or more than 400V.
(a) Check the cable connection between
CBG-2692 (TB19/TB20) and
CMC-2692/2695/2698 (TB1/TB2).
(b) Check the 80V setting (CBG-2692 RV3).
NAH PA(A) TR
NAH PA(B) TR
NAH PA(C) TR Transistor bias current is less
than 1.5A or more than 2.9A. (a) Check the cable connection between
CAH-2692 (TB1) and CMC-2692/2695/
2698 (TB3/TB103/TB203).
(b) Check the RF-Transistor (CAH-2692
TR1-TR4).
NFC DUMMY OR
L-RELAY NFC check 1 : OK
NFC check 2 :
RF input level : OK
SWR : NG
(a) Check the resistance of the dummy
load. (CFG-296/896 R4)
(b) Check the relay.
CFG-296:K20-K35, K52, K53, K60,
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