Need help for my Panasonic RX-5250LS

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5250ls

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At this level you can (if you want) remove the door mechanism (one notch on each side, simply pay attention to the spring location)and work on the deck... mine is fine and already cleaned, but sadly the head is a bit used...
Some pictures of the deck:16761978779453644624557903506796.jpg16761979126428134386661871506993.jpg16761979733557328114926784747104.jpg16761980239604954469175302041046.jpg
 

hopey

Member (SA)
DIN is very hard to make it work properly the pin out is weird and I would avoid. Have you actually plugged in a turntable to see if Phono input works? If you want to use this input for a Phone or cd player you can get adapters that drop th e signal to Phono level.
 

5250ls

Member (SA)
Release the screws of this board, again they are the same than previous ones16761989170974792055780450190272.jpg
 

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5250ls

Member (SA)
So now I must found where is my issue, as explained before, again all switches and socket are good...all is good except only noise through phono and only very very low sound on Din...one user told me that he think it is normal for the Din because it is not the same db level than a "line in"
Maybe it's ok but even so it doesn't solve the phono issue...and I really want to record some cassettes! Please....help 1676200348544833260619021296466.jpg16762004125588383888109552790963.jpg
 

AE_Stereo

Member (SA)
Yes I have trying this, but I think it's where there is a problem, I explain:
-Din/jack cable adapter linked to my phone through earphone.
-rear switch on Din.
-front function switch on Din/phono.
-Result the sound is very very low, not even enough to excite the vu meter, (same with or without rec pressed or with manual or automatic level record)
-recording on a tape is also very very low in result.
-I have tried another source than my phone and the same thing.
-cleaned all contact and everything, all working perfect, radio, radio/front mics recording, auto/manual level, play and all, music settings, sound is beautifull...
All but none rear entries work well, phono making noise and Din is to low to use but at least stereo and well balanced...to see with phone and box at max volume is almost the same than radio or tape with volume level at 1/10. I have also tried another source than my phone and it was the same...here is picture of front:

I think, the problem is with the DIN cable that you are using. If you are getting vey low volume, in most cases it means that you have connected to the OUT terminals of the DIN socket. Just check if you are getting Line Out from the unit through the same cable while playing the unit.
Try to make a DIN adapter cable yourself using a 5 pin DIN socket or buy a 5 pin DIN cable having 4 connectors (2 in and 2 outs).

Identify the Ground pin of the DIN socket first. One of the DIN pins will have continuity with the ground of the RCA connectors.
Then you can try to identify the pins by randomly testing the connection using a needle inserted into each pins of the DIN socket. Do it carefully without shorting the pins.
 
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5250ls

Member (SA)
DIN is very hard to make it work properly the pin out is weird and I would avoid. Have you actually plugged in a turntable to see if Phono input works? If you want to use this input for a Phone or cd player you can get adapters that drop th e signal to Phono level.
Yes I have try phono socket but without adapter that drop the signal so maybe I have fried something (or previous owner) because there is just horrible noise coming when using it...
 

5250ls

Member (SA)
I think, the problem is with the DIN cable that you are using. If you are getting vey low volume, in most cases it means that you have connected to the OUT terminals of the DIN socket. Just check if you are getting Line Out from the unit through the same cable while playing the unit.
Try to make a DIN adapter cable yourself using a 5 pin DIN socket or buy a 5 pin DIN cable having 4 connectors (2 in and 2 outs).

Identify the Ground pin of the DIN socket first. One of the DIN pins will have continuity with the ground of the RCA connectors.
Then you can try to identify the pins by randomly testing the connection using a needle inserted into each pins of the DIN socket. Do it carefully without shorting the pins.
Maybe you are right, I have buy this cable especially for that purpose the seller claim "jack out to DIN in" but I will check the connection later...here is a picture:16762019017956755197009446557057.jpg
 

5250ls

Member (SA)
Pretty clean inside your boombox. It looks like it has lived its life in a very clean, dust free country!!!
No it wasn't like that, there was a good bunch of dust in it, when I got it I have cleaned everything
The tape head was sadly corroded too, now it show some remain stain but the sound is great (I have used very gently some "polywatch")
 

AE_Stereo

Member (SA)
Maybe you are right, I have buy this cable especially for that purpose the seller claim "jack out to DIN in" but I will check the connection later...here is a picture:

I am sure about it now!
The Line-IN pins will be the unused two pins in the cable that you own!

Check the continuity from the other end (Phone side) to identify the pins.

I would break open the cap of the DIN connector side and resolder the cables to the right pins!!
 

AE_Stereo

Member (SA)
Yes I have try phono socket but without adapter that drop the signal so maybe I have fried something (or previous owner) because there is just horrible noise coming when using it...
You will get horrible sound in Phono socket, if you feed it with Line Level signal. It is meant to be so.
Phono socket is to take the output from Vinyl/LP record players without Phono-amp. It is very feeble signal.
 

5250ls

Member (SA)
I am sure about it now!
The Line-IN pins will be the unused two pins in the cable that you own!

Check the continuity from the other end (Phone side) to identify the pins.

I would break open the cap of the DIN connector side and resolder the cables to the right pins!!
After check it is linked like this
20230212_131943.jpg
 
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