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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Tue 17, 2021 12:19 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Tfkalk wrote:
I did have a question-- the C1A and C1B electrolytic capacitors are in a metal tube.
The metal tube goes into the chassis and the wires run from inside the tube to inside the chassis (unlike the amplifier, output, and rectifier which could be unplugged).
How do I then change out the parts inside the metal tube?

Post a good photo of the complete inside of the chassis.

And photos of the top and sides of the chassis.

One photo with close up of where the wires from
the capacitor can go.

That way I don't have to go back to find
earlier photos.

Go to the first post I made with the links to
capacitors tutorials.
Read up on the electrolytic caps. Those are what are
contained in the multi-capacitor can.
During the read, you will see the topic on "re-stuffing" a capacitor can.
That will be one option for you.

Second option:
If you have room underneath the chassis, you can
mount a terminal strip and install the caps that way.
That method is also in the tutorials.

Terminal strips are available from Mouser, also.
Example search:
https://www.mouser.com/Keystone-Electro ... ip&FS=True

Hotwax


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Tue 17, 2021 4:41 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
Hotwax wrote:
Post a good photo of the complete inside of the chassis.

And photos of the top and sides of the chassis.

One photo with close up of where the wires from
the capacitor can go.

I posted all the images as requested (or so I think, please correct me if not). It’s hard to get good pictures inside the chassis because of all the wires.

I’m stopping by the hardware store tomorrow to get the soldering gun and anything else. If anyone has any recommendations, please feel free to share them.


Attachments:
File comment: Inside
BDCDA3C6-7CD3-4A29-A539-CD0E5CCCD891.jpeg
BDCDA3C6-7CD3-4A29-A539-CD0E5CCCD891.jpeg [ 3.34 MiB | Viewed 985 times ]
File comment: Side view
9D055C89-82E7-41E4-AEB7-8B79A0484B3D.jpeg
9D055C89-82E7-41E4-AEB7-8B79A0484B3D.jpeg [ 3.33 MiB | Viewed 985 times ]
File comment: Top (needs to be desoldered)
27D5C103-7F7C-4592-A464-5C4803FC76CF.jpeg
27D5C103-7F7C-4592-A464-5C4803FC76CF.jpeg [ 3.07 MiB | Viewed 985 times ]
File comment: Wires from capacitor 1
B17E14CA-A3C8-4FCB-840F-59A593B6AC29.jpeg
B17E14CA-A3C8-4FCB-840F-59A593B6AC29.jpeg [ 470.01 KiB | Viewed 985 times ]
File comment: Wires from capacitor 2
6CB3E2B9-1AAA-4CB4-9B51-D0BDE67A6FC3.jpeg
6CB3E2B9-1AAA-4CB4-9B51-D0BDE67A6FC3.jpeg [ 461.66 KiB | Viewed 985 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Tue 17, 2021 10:30 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Tfkalk wrote:
I’m stopping by the hardware store tomorrow to get the soldering gun and anything else. If anyone has any recommendations, please feel free to share them.
Thank you for the photos.

You will need a drill and some metal drill
bits, if you use terminal strips mounted.

Buy some 6/32 bolts 3/8" long, matching nuts,
and lock washers for mounting the strips to chassis.
Drill bit that bolt size and one size larger.

If you go with re-stuffing the capacitor can, you will
need a hacksaw. It is needed when sawing off part
of the can.
Some aluminum tape to re-attach the cut off
can piece.
Hotwax


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Wed 18, 2021 4:28 am 
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Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
Thanks Hotwax! I will get those as well. I think I'm going to go with the terminal strip solution (avoids having to use a hacksaw and I already own a drill).


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Wed 25, 2021 1:12 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
I was looking to replace my cartridge while I wait for some last few parts to arrive for the amp. However, I had a few quick questions. I got this cartridge (), however it has four pins and the instructions say to combine the ground feeds together and then the two feed wires together. However, that will leave me with two wires and this current cartridge only has one cable.

Also, where is the needle with this new cartridge? I thought it came with a sapphire 78 needle, but I don’t see anything that resembles the current needle.


Attachments:
File comment: Current cartridge; two wires twisted together
B6DE2E18-2E8F-401A-88F7-524D3FB19175.jpeg
B6DE2E18-2E8F-401A-88F7-524D3FB19175.jpeg [ 1.96 MiB | Viewed 601 times ]
File comment: More zoomed out view
69051429-AE48-4AE1-B0B6-8F7410593911.jpeg
69051429-AE48-4AE1-B0B6-8F7410593911.jpeg [ 2.66 MiB | Viewed 601 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Wed 25, 2021 9:32 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Those are the only 2 wires you have to attach
to the new Pfanstiehl stereo cartridge.

Use a small pen knife to very carefully pry each
connector from the old cartridge connecting pins.
Be careful not to break the fragile thin wire
soldered to the pin connector.

The bare braided wire is a shielded wire that
reduces hum.

I use a different way to jumper each of these 2 wires
to:
A. the stereo cart's R/L channel pins.
B. the stereo cart's R/L ground pins.

I use a fine gauge solid copper wire that I wrap
a loop around the R channel pin,
then loop it around the L channel pin.
Same for the R/L channel ground pins.

Snip off any copper wire lead that would
be in the way of the phono cart plastic
mount.
Neither copper wire should touch each other.

I then secure the wire against the pins
by using the 4 connectors that are supplied
with the Pfanstiehl cartridge from V of M.

I expand the connectors' split shaft with
a pen knife until they friction fit onto
the cartridge pins.
I push all 4 connectors onto the 4 pins of
the cartridge to hold the 2 copper jumper wires in place.

Then one side of your tonearm cartridge wire
is attached to one of the jumpered R/L channel
connector blades.
Same is done to the R/L channel jumpered ground.

You can carefully crimp the old connector so that
the new connector blade will friction fit on it.

See below photo link from The V of M.

I find this is less time consuming than trying to solder
tiny jumper wires.
Hotwax

https://thevoiceofmusic.com/popup_pics. ... jpg&TITLE=


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Fri 27, 2021 4:31 am 
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Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
Thanks Hotwax! I don’t currently have copper wire, but I can pick some up and then do this. Before I do so though, I just wanted to double-check on the needle part. Since it’s a .7 mil needle, this tiny little spec is the needle? It’s significantly smaller than my current one and maybe this is just my lack of knowledge showing, but I just want to double-check that I’m not missing anything.


Attachments:
File comment: Arrow pointing to needle
B7706D4E-50F9-438D-9EB0-4D6F1EB8F540.jpeg
B7706D4E-50F9-438D-9EB0-4D6F1EB8F540.jpeg [ 400.04 KiB | Viewed 570 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Fri 27, 2021 2:44 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Tfkalk wrote:
Thanks Hotwax! I don’t currently have copper wire, but I can pick some up and then do this.
Before I do so though, I just wanted to double-check on the needle part.
Since it’s a .7 mil needle, this tiny little spec is the needle? It’s significantly smaller than my current one and maybe this is just my lack of knowledge showing, but I just want to double-check that I’m not missing anything.

Yes, you are correct. Also, the arm of the stylus is
color coded to the size stylus tip.
Should be noted on the plastic container.

Your old powerpoint cartridge had a 1mil/3mil dual tip
in it most likely.
The 3 mil tip is 4 times the diameter of the 0.7 mil stereo tip.
It is used to play older 78 RPM records only.

For the fine copper wire, I believe it was
picture frame hanger wire.
It's been some years now since I bought it.

Hotwax


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Sat 28, 2021 2:30 am 
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Joined: Dec Mon 23, 2019 5:52 pm
Posts: 616
Are you sure there's a tip there at all? I see the tip that's facing "up" on the needle, but nothing down.


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Sat 28, 2021 3:11 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
So looking at it (although it’s tough because of how small we’re talking and I don’t have a magnifying glass), but there does seem to be a point on both sides. I zoomed in as far as I could to take a picture. Now whether or not that small speck is a proper tip, I will have to defer to you all (although I’ll certainly answer any questions I can) because this is only the second cartridge I’ve ever had and I obviously can’t test this until I finish the other repairs.

Hotwax— thanks, as always, for your response. Also thank you for the note on the copper wire, it came literally as I was shopping for the wire! Somehow you must’ve read my mind!


Attachments:
AE8335BE-110A-4748-B831-7FAD96A2D6AA.jpeg
AE8335BE-110A-4748-B831-7FAD96A2D6AA.jpeg [ 1.61 MiB | Viewed 527 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Aug Sat 28, 2021 2:29 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
All A-OK with the cartridge styli.

You could see both styli in the original photo.

You had to increase the size of the photo to see it.

Hotwax


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Sun 12, 2021 4:34 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
The 24 gauge wire arrived today and I looped it around the pins with no touching. What does it mean to "expand the connectors' split shaft?" I have noticed it's quite difficult to get all four connectors onto the pins and have them secure.


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Tue 21, 2021 6:39 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Tfkalk wrote:
The 24 gauge wire arrived today and I looped it around the pins with no touching. What does it mean to "expand the connectors' split shaft?" I have noticed it's quite difficult to get all four connectors onto the pins and have them secure.

I'm posting this photo again for you.

https://thevoiceofmusic.com/popup_pics. ... jpg&TITLE=

It shows the cartridge pin connectors with the split
formed in their shaft.
Expand the image size to see it better.

Use a small pen knife blade run inside the tube of
the connector to carefully open up the split.

Open the pin a bit at a time, and try it on the
cartridge pins, until you have a friction fit
that's not too tight.

Hotwax


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Wed 22, 2021 4:44 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
Thanks Hotwax! I was able to get all four pins in. I have two quick questions. First, of the red and white wires coming from the player, which is ground and which is feed? I presume there is a specific wire for each so I want to make sure I connect them to the proper pin. Second, any advice in screwing in/securing the cartridge? The cartridge partially blocks where I think the screws would go so I’ve been struggling to secure it in the arm with the screwdriver. I might just need to try more, but let me know.


Attachments:
File comment: Red and white wires from player
58C44963-81A0-440F-BFC1-A86D15A1070E.jpeg
58C44963-81A0-440F-BFC1-A86D15A1070E.jpeg [ 2.84 MiB | Viewed 200 times ]
File comment: Cartridge with connector pins in
8DEDA1AC-3851-4A6E-80AB-627FCBB22CFF.jpeg
8DEDA1AC-3851-4A6E-80AB-627FCBB22CFF.jpeg [ 1.71 MiB | Viewed 200 times ]
File comment: Screw partially blocked by cartridge (same on other side as well)
9001837D-E115-4A75-8B78-72ACDD42672C.jpeg
9001837D-E115-4A75-8B78-72ACDD42672C.jpeg [ 1.91 MiB | Viewed 200 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Wed 22, 2021 5:13 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Tfkalk wrote:
Thanks Hotwax! I was able to get all four pins in.
I have two quick questions.
First, of the red and white wires coming from the player, which is ground and which is feed? I presume there is a specific wire for each so I want to make sure I connect them to the proper pin.
Second, any advice in screwing in/securing the cartridge? The cartridge partially blocks where I think the screws would go so I’ve been struggling to secure it in the arm with the screwdriver.

1. You can use either red/white wire for ground or signal.

2. The cartridge body plastic mount must be removed
from the cartridge body to screw down into tonearm.

Read my post discussing P-228 mounting below.
See point # 3.

viewtopic.php?f=9&t=364336&p=3217267&hilit=pfanstiehl+p+228+mount#p3217267

3. When you are ready to attach the tonearm wires, you can
remove one of the ground and one of the signal short wires
you have on the cartridge.
The tonearm wire connectors will push
the copper jumper wire down for connection.
H


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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Thu 23, 2021 4:37 am 
Member

Joined: Aug Mon 09, 2021 3:24 pm
Posts: 26
Thanks! I just want to double-check I have the right parts before I start disassembling this cartridge. Is the first one the Mount? Is the second the friction tab? I would assume so from looking at it, but want to double-check


Attachments:
File comment: Mount?
66DB32F7-6DC8-459D-9879-14FA164BC80F.jpeg
66DB32F7-6DC8-459D-9879-14FA164BC80F.jpeg [ 426.88 KiB | Viewed 169 times ]
File comment: Friction tab?
CBEA0183-DD0B-4B17-9C3C-5B80CC9E547E.jpeg
CBEA0183-DD0B-4B17-9C3C-5B80CC9E547E.jpeg [ 416.91 KiB | Viewed 169 times ]
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 Post subject: Re: Zenith ZP-8L Music Very Faint
PostPosted: Sep Thu 23, 2021 4:48 am 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
The friction tab is the front part of the
mount, not the rear retainer molded tab
on the cartridge body.

The friction tab snaps onto the front of
the cart body.
Be careful not to break the friction tab off.

Once you have the plastic mount removed,
it will be obvious to you how the cart is
put together.

If it makes for more working room,
you can also snip off the
pigtail wires on the pin connectors.

H


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