JRC JFV-130HP Series, Руководство по установке

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4.2 Case of 7PCBS7016C
4.2.1 Switching to Single Frequency
Adjust the following components on the CML-478A. For the entire view of the CML-
478A, see Figure 4.1 in page 40.
CD201: Indication for high potential.
Ｓ２
See the following 3.
ＪＰ
See the following 1 and 2.
CPU
ROM
1. When 200 kHz is selected, move the jumper pins JP201, 202, 203 and 204 to the
position indicated in Table 4.3 of page 45. When 75, 50, 38 or 28 kHz is selected,
move the jumper pins JP211, 212, 213 and 214 to the position indicated in the same
figure.
2. When 200 kHz is selected, the following modification is required.
200 kHz is output to the 5-pin connector (J905 A/B or A). Direct the output to the
3-in connector (J906 “B”) by the following modification.
Remove P105 and P106, then insert P106 to the once P105 position and fix P105
using tiewrap so that it may not touch nearby parts.
3. Change the S2 position according to Table 4.3 in page 45.
When switching, S2 No. 1 and 2 or No. 3 and 4 must be handled as a pair.
4. Change the model name on the rear panel nameplate.
Using an oil felt pen, delete 11
th
and 12
th
characters (below example “KM”), then en-
ter new characters to a nearby location.
The following is an example of the model name change done when you switch from
the dual frequency CFT-220/CFT-520 to the single frequency CFT-720.
ＣＯＬＯＲ ＥＣＨＯ ＳＯＵＮＤＥＲ
MODEL
ＪＦＶ−１３０ＨＰＪＫＭＢ
SERIAL NO. HD12345
＊
L
JRC JAPAN RADIO CO.LTD
5. Apply the master reset.
For this operation, refer to the “Implementing the Master Reset” in Section 4.3 in
page 46.