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Marantz 5010

Stereo Cassette Deck (1978-80)

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Marantz 5010


Type: 2-head, single compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.75 cm/s

Heads: 1 x record/playback, 1 x erase

Motor: 1 x DC servo control

Tape Type: type I, FeCr, CrO2

Noise Reduction: B

Frequency Response: 40Hz to 16kHz  (Cr02 tape)

Wow and Flutter: 0.12%

Total Harmonic Distortion: 1.8%

Semiconductors: 21 x transistors, 3 x IC, 23 x diodes, 2 x LED

Dimensions: 440 x 146 x 297mm

Weight: 6.7kg

Note: optional walnut veneer cabinet


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Reviewed Jul 21st, 2017 by pawel_dud

Very good sound and warm bass.



re: 5010

Hi everybody,
I'm trying to adjust the speed on my 5010, because it runs slighly too fast.
I can't find any screw or anything to adjust it, can someone help me ??
Thanks everyone

re: 5010

Hi there ,
There is a hole at the back of the dc motor for adjustment , use small screwdriver for that.

re: 5010

What reference can you use? I'm thinking of an orchestral cassette tape that has the orchestra tune up at the beginning (are there any?)... you could watch the 440 Hz "A" with a dual beam 'scope and a reference digital sig.gen. at 440 Hz and adjust for no frequency difference. There must be an easier way! Frequency reference cassette? I've never seen one.

re: 5010

Has anybody changed the belts inside this model it looks very complicated I started to unscrew one of the screws holding the wheels in but realised there are other belts deeper into the mech. Any help or YouTube vids out there ?

re: 5010

I am about to do this on a recently acquired unit! Two of the original belts liquefied... terrible black mess, but now cleaned out! "Goof off" solvent worked.
Two belts look easy as the wheels are "open" (motor and flywheel.) A third belt seems to drive the tape counter... looks OK.
Now I need to find a belt supplier... I may have the belt type number, but still looking to confirm.
Manuals don't seem to download today... I've no idea why? Will try later.

re: 5010

Me again...
Manual downloaded OK today.
Belts are:
Flat motor belt: Ref. Designation: 850N, Part number: 4380264012
Round (?) TMS (?) belt: Ref. Designation: 851N, Part number: 4380264022
Are there any generic belts for these? e.g. the motor belt is about 13 inches at "operating stretch" (my term, measured with string) and the TMS belt is likely a round one and is about 5 1/2 ins ditto.
They both look like easy slip-on installations... we shall see.
Now I need to find a supplier!

re: 5010

I have done a full replacement on my 5010. First find a supplier of belts and idler wheels. Then without a manual you should set up a video camera to film your every step and give a comprehensive commentary. Mark or number each component and get replacements. If you've done it properly then replay the video on a monitor, work carefully, and re-assembly shouldn't be too hard. I am not an engineer or technician but my tape deck now has another 30 years of life!

This website is not affiliated with or sponsored by Marantz. To purchase 5010/5010B spares or accessories, please contact the company via their website or visit an authorised retailer.