Nah Check 2; Nfc Check 1 - JRC JSS-296 Service Manual

NAH check 2:

NAH check 2 is the check of the PA. In this check, RF output is connected to the dummy load into the
NFC. In the above-mentioned state, 1.6MHz RF signal is inputted into NAH Power Amplifier and check
the RF input/output level, and the VSWR of the NAH.
Judgment conditions:
OK
NG
JSB-196GM
Check the RF input level

NFC check 1:

NFC check 1 is the check of the NFC matching circuit. In this check, RF output is connected to the
dummy load and the check the matching on 6 frequencies.
Judgment conditions:
OK
NG
JSB-196GM
NFC check 2:
NFC check 2 is the check of the NFC short circuit. In this check, RF output is connected to the antenna
dummy load. In the above-mentioned state, 1.6MHz RF signal is inputted into the antenna tuner and
check the VSWR of NFC sensor circuit and antenna dummy.
Judgment conditions:
OK
NG
JSB-196GM
84
: SWR <3.0 and RF input level >= 0.1W and RF output level >=20W.
: SWR >=3.0 or RF input level <0.1 or RF output level < 20W.
NAH-692/695/698
AMP
Check the SWR
Check RF output level
: The frequency of SWR<3 is 5 or more.
: The frequency of SWR>=3 is 2 or more.
NAH-692/695/698
AMP
Check the Matching SWR
: SWR <=2.0 and RF level >= 5W.
: SWR >2.0 or RF level <5W.
NAH-692/695/698
AMP
Check the SWR & RF input level
NFC-296/896
Matching
circuit
DUMMY
NFC-296/896
Matching
circuit
DUMMY
NFC-296/896
Matching
circuit
DUMMY