My 1983 Zenith 13" portable
I've had this TV for many years. I got it at a thrift at least six or seven years ago, and today, I decided to unearth it and put it back in service. This TV is not nearly as heavy as the 1976 CCII.
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I've got the knob tuned version in gray, and seen a varactor continuous tuned version. It is a 9-160 set.
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I'm having a very annoying problem with this set right now. It refuses to pick up the channel 16 UHF signal from my Blonder Tongue agile modulator. I have a UHF antenna installed and all my other TV's are fine.
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Looks like it's picking up something. those waves... RF interference?
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No, the 1976 Zenith worked fine when it sat there.
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I already checked all that. They're all in the normal/UHF mode.
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Probably uses a 9-181 signal module and a 9-186 HV/sweep module. I have the knob-tuned version and they are good sets. They are indeed a lot lighter than the older CCII sets because these don't have a power transformer and there is no metal chassis in the newer sets.
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9-160 based 13" sets started in L-line late 1979
its the 1980 model year. Used M & N line also. May have spilt over to Y line but dont remember. O-X are skipped over, any sets in that range are house sets & not part of the regular line. 9-181 sets came in Y-line 1983 model year. Again there may have been spill over. If the AFC is in normal & the band switch is in air it should work. You could also try it in special, that gives wider range & longer search time for the AFC. Also try a VCR & see if ch 3 is working. If a 9-160 set on the 9-160 there is a little transistor called 32 V current source that will do this. Then look for PC cons in the tuner area that is part of the 9-151 board. On 9-181 sets tuner is separate. A little taping around may find the problem. 73 Zeno:smoke: |
I think I've only seen one 9-160 set that was made in '83 and it was a System 3 25" console. I've seen plenty of 9-181 sets that were made in '82 for the '83 model year.
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http://www.videokarma.org/attachment...6&d=1459374333
Does it receive a good channel on say channel 3 or 4? If so, I've seen sets that won't lock onto a channel if you turn the set on first and then the channel "transmitter". Maybe the set's PLL circuit needs a tweak. |
By pressing Enter and using the channel buttons to fine tune, I can tune in channel 16. But when turned off, it resets and you have to do it all over again. What gives?
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