Message Of Jsb-196Gm Operation Check And Management - JRC JSS-296 Service Manual

250w/500w/800w mf/hf radio equipment
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5.5 Message of JSB-196GM Operation Check and Management

Message
DSP SERIAL
NO ATU
NAH-NFC SERIAL
CMN-1960 TRX UNIT
CAH-1960 PA UNIT
BATTERY
BATTERY OUT
NAH CHARGER
NAH PA 80V
NAH ARRESTOR
NAH PA(A) TR
NAH PA(B) TR
NAH PA(C) TR
NFC
DUMMY
OR
L-RELAY
82
Condition
Serial communication is unusual
between CPU (CDJ-1960) and
DSP (CMN-1960).
Serial communication is unusual
between
JSB-196GM
NAH-692/695/698.
Serial communication is unusual
between NAH-692/695/698 and
NFC296/896.
RX circuit is unusual or Exciter
output is insufficient.
RF output of CAH-1960 is less
than 5W at the time of the NFC
check 1.
The battery voltage when turning
off a charger is less than 20V.
The electric discharge current of
a battery is more than 10A at the
time of AC operation
The output voltage of the battery
charger is less than 24V.
PA80V power supply of NAH is
less than 70V or more than 90V.
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.
Transistor bias current is less
than 1.5A or more than 2.9A.
NFC check 1 : OK
NFC check 2 :
RF input level : OK
SWR : NG
Management
(a) Check the cable connection between
CDJ-1960
(J2/J3)
(J23/J22).
(b) Check the cable connection between
CAH-1960 (J9) and CMN-1960 (J21).
(a) Check the cable connection between
and
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.)
(a) Check the cable connection between
NAH-692/695/698,
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.)
(a)
Check the cable connection between
CDJ-1960
(J2/J3)
(J23/J22).
(b)
Check the cable connection between
CAH-1960 (J8) and CMN-1960 (J21).
(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.)
Check the Battery voltage.
Check DC current of external unit. (VHF,
GPS, Lamp etc.)
Check the charge voltage setting (CBG-2692
RV1, RV2).
(Refer to 4.2.2)
(a)
Check the cable connection between
CBG-2692
CMC-2692/2695/ 2698(TB1/TB2).
(b)
Check the 80V setting (CBG-2692
RV3).
(a) Check the cable connection between
CBG-2692
(TB19/TB20)
CMC-2692/2695/2698 (TB1/TB2).
(b) Check the 80V setting (CBG-2692 RV3).
(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).
(a) Check the resistance of the dummy
load. (CFG-296/896 R4)
(b) Check the relay.
CFG-296:K20-K35, K52, K53, K60,
Remark
and
CMN-1960
NQD-4190
and
and
CMN-1960
(TB19/TB20)
and
and

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