6-1
6. BOARD INTERCHANGEABILITY
6.1 DISPLAY UNIT
All boards except the AMP board 01P5725 in the display unit are common PC board for all
frequency units.
The AMP board 01P5725 is fitted with a crystal oscillator for the designated signal
transmission frequency (33, 40 or 50kHz) only.
The frequency can be changed by adding a crystal oscillator and changing jumper settings.
Necessary parts
Frequency Type of Crystal Code No.
33kHz NTO-762BA 4885kHz 000-11 8-959
40kHz NTO-762BA 4955kHz 000-118-960
50kHz NTO-762BA 5055kHz 000-118-961
Procedures
1. #7 and #8 pin holes for crystal oscillator on the board are shorted by a jumper wire
when crystal oscillators are not installed. Remove the jumper to install the crystal
oscillator for the desired frequency.
2. Change the settings of jumper block Jxx1 and jumper wire as follows.
Frequency Jumper Block Jxx1 Jumper Wire
33 kHz FL FL-F4
40 kHz FM FM-F2
50 kHz FH FH-F6
Fig.6.1 Jumper settings
Note: All jumper wires (FL-F4, FM-F2, FH-F6) are set previously in the factory
Содержание CN-24
Страница 1: ...COLOR NET RECORDER CN 24 ...
Страница 9: ...1 5 Fig 1 8 Transmitter unit timing chart range 80 80 m and sounding rate high ...
Страница 11: ...2 2 Fig 2 1 Block Diagram of Transmitter Unit ...
Страница 20: ...2 11 Fig 2 16 Block Diagram of Display Unit ...
Страница 57: ...8 3 4 How to fix and remove the guide plate and wires from the plug P1 Fig 8 4 Guide plate and Plug P1 P1 ...
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