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SC-816 tape player keeps reversing, won't play cassette

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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SonicAdventure
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Re: SC-816 tape player keeps reversing, won't play cassette

Post by SonicAdventure » Fri Oct 26, 2018 4:51 pm

How do you do an adjustment like that with the tape in and the unit back in the car?

Also, does anyone know where the “code” to these radios lives? Like if I switch the faceplate from one radio does the code follow the face plate or does it follow the body of the radio?

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BEJinFbk
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Re: SC-816 tape player keeps reversing, won't play cassette

Post by BEJinFbk » Fri Oct 26, 2018 7:18 pm

SonicAdventure wrote:
Fri Oct 26, 2018 4:51 pm
How do you do an adjustment like that with the tape in and the unit back in the car?

Also, does anyone know where the “code” to these radios lives? Like if I switch the faceplate from one radio does the code follow the face plate or does it follow the body of the radio?
When I was doing this all the time,
I had a test setup on the bench with
power and speakers, so that helped.

You should have enough slack in the
car harness to do it in the vehicle.
You may need a pretty long miniature
screwdriver, but there's usually access.

Just be sure to protect any surrounding
surfaces from being scratched up by the
HU. These radios have nasty corners!

Don't know about the code...
'98 V70 R - Well Equipped for Life Up North... ;)

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RickHaleParker
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Re: SC-816 tape player keeps reversing, won't play cassette

Post by RickHaleParker » Sat Oct 27, 2018 12:54 am

If you going to take the time to change the lamp sockets, why not just solder in long life 12V LEDs instead. I like mine in green..

Radio security codes are tied to the VIN of the car at the factory. If you know the VIN number and Mileage of the car that the radio was installed in at the factory, you can get the security code by filling out this form.

The security code is stored in the radio's electronics. You can move a SC-816 from car to car if you know the security code.

If you take the radio part number and serial number from the radio to a dealer. A dealer can get the security code. Some will do it some will not. I think the deciding factor is now much the radio is worth.

If it not worth stealing you might get the code. If it is worth stealing ... the radio code is there to discourage radio thief. Giving out a code to a radio worth stealing without proof of ownership, would render the security measures useless.

Look on the top of the radio. Often service tech and previous owners will mark the code on the radio. The owners manual is another place to look. The previous owner of my S90 went to a picture of the radio in the owners manual and inked the code on the display.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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raivis_rsn
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Re: SC-816 tape player keeps reversing, won't play cassette

Post by raivis_rsn » Sat Oct 27, 2018 3:27 am

BEJinFbk wrote:
Fri Oct 26, 2018 8:25 am
Now get an SC-901 ! 😎
SC-901 is great head unit but it's very hard to find a fully working one. Mine has pretty poor fm reception and I don't know why. SC816 is more reliable. Most of them are still working without issues.
SonicAdventure wrote:
Fri Oct 26, 2018 4:51 pm
Also, does anyone know where the “code” to these radios lives?
The code is stored in of the chips on main PCB. If you replace just faceplate, the code remains the same.

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