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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
HT-DP2500W
(Continued)
s AM/FM Interval (span)
The International Telecommunication Union (ITU) has established that member countries should maintain either a 10 kHz or a 9 kHz interval between broadcasting frequencies of any AM station. The illustration shows the 9 kHz interval zones (regions 1 and 3), and the 10 kHz interval zone (region 2). This product is not equipped with a span selector. However, it will be adjusted to 9 kHz AM interval (50 kHz FM interval) when shipped from the factory. Before using the unit, be sure to set it for the AM tuning interval (span) used in your area. To check the tuning span currently selected:
1 2
ON/STAND-BY
Set the ON/STAND-BY button on the main unit to ON. Press the TUNER (BAND) button until "FM" or "AM" appears in the display. Press the TUNER (BAND) button to select the AM band.
3
q If "AM 531 kHz" is displayed, it means that the radio has been adjusted for a 9 kHz span. If "AM 530 kHz" is displayed, it means that the radio has been adjusted for a 10 kHz span. TUNER (BAND) ENTER To change from a 9 kHz AM (50 kHz FM) interval to a 10 kHz AM (100 kHz FM) interval:
1
ON/ STAND-BY
Press the ON/STAND-BY button on the remote control to enter the stand-by mode. Hold down the TUNER (BAND) button and the ENTER button for at least 4 seconds. Release the buttons when "AM SP 10 kHz" and "FM SP 100 kHz" are displayed alternately.
2
To return to a 9 kHz AM (50 kHz FM) interval:
1 2
[9 kHz � 10 kHz]
Press the ON/STAND-BY button on the remote control to enter the stand-by mode. Hold down the TUNER (BAND) button and the ENTER button for at least 4 seconds. Release the buttons when "AM SP 9 kHz" and "FM SP 50 kHz" are displayed alternately.
(4 seconds)
Caution: q When the unit is left for a few hours after the span has been switched and AC power lead disconnected, it will be automatically returned to a 9 kHz span. If this happens, set the span again. q When the span is switched, any stations that are memorised will be cancelled.
[10 kHz � 9 kHz]
(4 seconds)
�5�
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