JVC PC-5 Compo System Restore - July 2017

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Nickeccles

Member (SA)


Wow!!

This took me 3 days of hard work to bring back to 100% working order!!

The cassette deck is pretty complex & requires removing the cassette mechanism completely to access & replace the 2 belts that drive it
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Not for the faint hearted in fact when I opened it up, I saw the 2 motor multi layered pcb's over the reel motor & the many microswitches that all needed cleaning back to metal due to tarnishing.............

Once the deck is out & in front of you, it's relatively easy to unscrew the lower level of mechanics & lift it away to reveal the huge flywheel driven by a large flat belt & a tiny second belt on the top of the flywheel that drives the full auto stop mech
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After cleaning & replacing the two egg shaped belts, it's time to reassemble the mechanism, check for any micro or leaf switches (There's a few!!) & clean them up......found one lurking under the decorative silver metal plate on the front of the deck which I removed to check for rubber tyres (None, all gear driven) This switch is for the music search solenoid & needed de-gunking!!

At this stage, I decided to totally strip down the whole system & clean/service every last part of the tuner, amp & cassette deck as the pictures will show!!

While the cassette mech was still out, I powered her up to clean the freshly oiled capstan shaft heads & pinch roller - much easier when all open & didn't take long at all!!

No azimuth or speed tweaks, in my experience these JVC component decks are always spot on
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Reassembling the tape deck is no picnic, nor is it too difficult, hence the choice to do a complete strip down & knowing that the amplifier & tuner would be easy compared to the deck - Like my PC-11, the cassette deck is absolute quality & these deserve to be saved & used for many years to come!!

Amplifier & tuner both completed on last day (Y/day) & nothing to report here just cleaning & Servisol & polish the cases of both
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Late last night was time to connect & test it out..........

& Viola!! Everything worked first time
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I expected at least a couple of issues as I haven't done one of these before............

Cassette deck is very very good, sound quality is superb with a wide dynamic range & slick performance! The logic controlled mech is perfection & a delight to use!! Recording quality even on ferric tape is very good - stability is as good as it gets & the tiny led's are a nice touch!!

As expected, the speakers were farked - foam all gone
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so, for now, a brand new pair of co-axial 4 inch car speakers sit in the cabinets until the refoam kit arrives!! The JBL's are superb......this system can really pump it out effortlessly...........bass is deep tight & treble is sweet along with excellent stereo separation
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Ah well, enough waffle - Here are the images......there are a few
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https://youtu.be/EqiBfTXcpQU
 

MyOhMy

Member (SA)
This is a good score for you, the classic lines of this honestly do have a special appeal and I have to say many thanks for the detailed pics as it's always nice to see inside BB's. Where do you obtain your refoaming kits from?
 

Lasonic TRC-920

Moderator
That looked utterly terrifying! You do some amazing work Nick. Takes some knowledge and skill to dig that deep. NICE WORK as always! :clap:
 

Nickeccles

Member (SA)





Thank you for the positive replies
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Today I added a rechargeable Bluetooth module in the battery compartment & made a few test recordings!!

This thing is amazing, cassette playback is way above average & so is the recording mode - so stable & you know me, I am a hater of poor tape transports, I listen hard to find fault on all my boomers & this one is very high on the list now
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I love this compo!!

I intend to re-foam the drivers in time, for now the JBL's are king of my 4 inch boomers speakers - they really pump out the power with an amazing dynamic range!!

I noticed that the video for this is the first I have shot that carries the stereo sound & imaging to the Galaxy S7 Edge's microphones & reproduce the sound very nicely on Mp4 playback
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What a machine to complete before I have a rest from this hobby for a short time......will still be permanently signed in to both forums though - don't want to miss other restores & finds
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