Hi guys,
Looking for a little help on an issue I have with my Sony CFS-85S:
View attachment 6636
When I got this box, I pulled it down and re-belted the deck and found the deck now worked beautifully. The Line In on this model is also very sensitive and works well. The amps on this unit are very good with a nice and even sound coming from both channels. The only real issue was the tuner. I had no AM, SW1, SW2 and only mono on FM. No amount of switch cleaning etc could rectify the tuner issues.
Fast forward a few months and a scored another CFS-85S. Upon receiving this new Ebay find, I realised this box was in far worse condition than my existing unit but it did appear to have a good tuner.
So I did a tuner swap and everything appeared fine with all 4 bands working with an FM stereo. The only problem is that when I turn up the volume, the tuner seems to start having sensitivity issues. On one very close FM station, the tune light and stereo lights stay lit and everything is fine. On every other FM station in Brisbane, the FM stereo light flickers depending on the load on the amp. It gets worse if you are using the deck at the same time:
Low volume on FM stereo mode:
View attachment 6637
Low to Mid volume on FM stereo mode:
View attachment 6639
Over 50% volume on FM stereo mode:
View attachment 6638
The 'operate' light beside the LED meters also dims quite a lot during the bass hits.
On AM mode, the 'Tune' light is only lit during pauses in conversation. It extinguishes the moment someone talks.
I am planning to do a full re-cap of this unit soon but just wanted some input as to a possible cause of these issues.
Thanks,
James...
Looking for a little help on an issue I have with my Sony CFS-85S:
View attachment 6636
When I got this box, I pulled it down and re-belted the deck and found the deck now worked beautifully. The Line In on this model is also very sensitive and works well. The amps on this unit are very good with a nice and even sound coming from both channels. The only real issue was the tuner. I had no AM, SW1, SW2 and only mono on FM. No amount of switch cleaning etc could rectify the tuner issues.
Fast forward a few months and a scored another CFS-85S. Upon receiving this new Ebay find, I realised this box was in far worse condition than my existing unit but it did appear to have a good tuner.
So I did a tuner swap and everything appeared fine with all 4 bands working with an FM stereo. The only problem is that when I turn up the volume, the tuner seems to start having sensitivity issues. On one very close FM station, the tune light and stereo lights stay lit and everything is fine. On every other FM station in Brisbane, the FM stereo light flickers depending on the load on the amp. It gets worse if you are using the deck at the same time:
Low volume on FM stereo mode:
View attachment 6637
Low to Mid volume on FM stereo mode:
View attachment 6639
Over 50% volume on FM stereo mode:
View attachment 6638
The 'operate' light beside the LED meters also dims quite a lot during the bass hits.
On AM mode, the 'Tune' light is only lit during pauses in conversation. It extinguishes the moment someone talks.
I am planning to do a full re-cap of this unit soon but just wanted some input as to a possible cause of these issues.
Thanks,
James...