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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Sony ICF-36 Radio
Have this Sony ICF-36 four-band (TV/WX/FM/AM) portable from the
Goodwill. It works, but the band switch seems to be dodgy. It's a slide switch, which works fine for AM, but for all the other bands, it needs to be jiggled in order to receive the desired band. Otherwise, all I get is static. Also, I took the radio part to spray some contact cleaner into the switch, but it didn't help. Another thing, the radio receives part of the FM band on the TV VHF-Low band. Doesn't seem right, but that band is useless anyhow. The high-band setting is still needed since WX shares its beginning. |
#2
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Sony ICF-36 Radio
On 06/01/2015 16:22, Madness wrote:
Have this Sony ICF-36 four-band (TV/WX/FM/AM) portable from the Goodwill. It works, but the band switch seems to be dodgy. It's a slide switch, which works fine for AM, but for all the other bands, it needs to be jiggled in order to receive the desired band. Otherwise, all I get is static. Also, I took the radio part to spray some contact cleaner into the switch, but it didn't help. Another thing, the radio receives part of the FM band on the TV VHF-Low band. Doesn't seem right, but that band is useless anyhow. The high-band setting is still needed since WX shares its beginning. usually due to insulating layer of copper sulphide on the fixed contacts of the multiway switch |
#3
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Sony ICF-36 Radio
On 01/06/2015 11:22 AM, Madness wrote:
Have this Sony ICF-36 four-band (TV/WX/FM/AM) portable from the Goodwill. It works, but the band switch seems to be dodgy. It's a slide switch, which works fine for AM, but for all the other bands, it needs to be jiggled in order to receive the desired band. Otherwise, all I get is static. Also, I took the radio part to spray some contact cleaner into the switch, but it didn't help. Another thing, the radio receives part of the FM band on the TV VHF-Low band. Doesn't seem right, but that band is useless anyhow. The high-band setting is still needed since WX shares its beginning. Hello, and you've likely got worn and/or oxidized band switch contacts. Whether or not contact cleaner (I prefer DeoxIT D5 spray myself) would help depends upon whether the cleaner can effectively penetrate the switch housing and what kind of shape the contacts are in. As for the TV band setting picking up FM, keep in mind that analog U.S. TV channels 2-6 covered a frequency range of 54-88 MHz and since the FM BCST band covers 88-108 MHz there is most likely some overlap by your radio's frequency band coverage. (Sometimes you wish for this on old AM radios whose dials stopped at 1600 kHz rather than the modern 1700 kHz.) Sincerely, -- J. B. Wood e-mail: |
#4
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Sony ICF-36 Radio
In article ,
Madness wrote: Have this Sony ICF-36 four-band (TV/WX/FM/AM) portable from the Goodwill. It works, but the band switch seems to be dodgy. It's a slide switch, which works fine for AM, but for all the other bands, it needs to be jiggled in order to receive the desired band. Otherwise, all I get is static. Also, I took the radio part to spray some contact cleaner into the switch, but it didn't help. Another thing, the radio receives part of the FM band on the TV VHF-Low band. Doesn't seem right, but that band is useless anyhow. The high-band setting is still needed since WX shares its beginning. In Japan, the FM audio band goes down to something like 76 MHz. Mark Zenier Googleproofaddress(account:mzenier provider:eskimo domain:com) |
#5
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Sony ICF-36 Radio
On 7/1/15 12:22 AM, Madness wrote:
Have this Sony ICF-36 four-band (TV/WX/FM/AM) portable from the Goodwill. It works, but the band switch seems to be dodgy. It's a slide switch, which works fine for AM, but for all the other bands, it needs to be jiggled in order to receive the desired band. Otherwise, all I get is static. Also, I took the radio part to spray some contact cleaner into the switch, but it didn't help. Best solution is to go for radios with digital tuning? -- @~@ Remain silent. Nothing from soldiers and magicians is real! / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora release 21) Linux 3.17.7-300.fc21.i686+PAE ^ ^ 22:09:01 up 3:37 0 users load average: 0.01 0.04 0.05 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
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