JRC JSS-296 - Objective Equipment; Attached Document

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Priority A: Carry out immediately
B: Carry out at periodical inspection
× C: Carry out upon client’s request
D: Information and news
1. Subject
Earth connection of TX antenna in NFC-296 Antenna Tuner
2. Objective Equipment
The following numbered NFC-296 Antenna Tuner within Tanker.
Serial number: From BC22067 to BC24090
3.
Outlines
Problem:
In NFC-296 Antenna Tuner for JSS-296 MF/HF Radio Equipment, TX antenna may be not connected
to the earth in standby condition.
Countermeasure:
Replace CFG-296 Matching Unit and Control cable in NFC-296 Antenna Tuner with followings
according to attached document “CFG-296 Matching Unit replacement procedures”
CFG-296 Matching Unit of PCB version 7PCJD0099C (Stock code: CFG-296-A)
Control cable (Stock code: 7ZCJD0258)
4. Attached document
Attachment1: CFG-296 Matching Unit replacement procedures
Attachment2: NFC-296 Antenna Tuner/CFG-296 Matching Unit circuit diagram