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© Audio Trade GmbH · Pro-Ject RPM 9.1 · Revision 1.3.08/1.5.08

 

5

Adjusting the vertical tracking angle (vta)

 

Put a record and the record weight on the platter. When the needle is lowered into the record groove and the 
tonearm is not resting on the lift arm, the tube of the tonearm should be parallel to the surface of the record.  
If it is not loosen both allen screws in the tonearm base just enough to allow vertical movement of the arm 
pillar without force and slide the arm up or down until it is parallel.  
Carefully retighten the allen screws without applying excessive force (which would deform the arm pillar) – 

finger tight is quite sufficient. 

Adjusting the azimuth 

The cartridge needle must be vertical in the record groove in order to trace the 
groove wall modulations correctly. 
A small screw at the bearing end of the arm allows incorrect azimuth to be 
corrected if your needle is not mounted exactly perpendicular to the cartridge 
body (which is often the case). 
Slacken off the screw just enough to be able to revolve the arm tube without 
applying force. Please note: do not remove the screw completely!

 

Screw

 

With the aid of a good magnifying glass adjust the needle until it is vertical in the groove (i.e. perpendicular 
to the record's surface). Ideally this should correspond to the top surface of the cartridge body being parallel 
to the record surface.  
When you are satisfied that the needle is vertical retighten the screw carefully. 

 

Under no circumstances should the arm tube be adjusted with the needle still in the record groove! 

Irreparable damage may be caused to the cantilever suspension! The arm must be lifted to make 
each adjustment and lowered afterwards to check it. 

Anti-skating force adjustment 

The anti-skating force must be adjusted according to the mass of the cartridge as 
follows: 
Downforce 

 

Groove in the stub (15) 

10 - 14mN 

 

1

st

  from bearing rings 

15 - 19mN 

 

2

nd

    "         "         " 

20mN and bigger

 

3

rd

     "         "         "

 

 

Hang the loop of the thread of the anti-skating weight in the groove of the anti-skating stub (15) corresponding 
to the downforce applied to your cartridge and feed the thread through the loop of the wire support (17).

 

Connection to the amplifier 

The record player has gold plated female RCA phono sockets (14) so you can substitute the interconnect cables 
supplied with those of your choice for connection to the amplifier if you wish. Your dealer can advise you on 
alternative cables. Use the Phono input (sometimes labelled gram, disc or RIAA) on your amplifier. Make sure 
that the phono input offers correct matching and amplification for the type of cartridge used. Line inputs 

(such as CD, Tuner, Tape or Video) are not suitable. 
Take care to connect the left and right channels correctly. The right channel is usually marked red, the left 
channel black or white. Check the manual supplied with your amplifier for relevant information. An earthing 
wire may be connected to the screw terminal between the sockets if you encounter hum problems when using 
the record player. 
If your amplifier does not have an input suitable for phono cartridges you will require a separate phono 
amplifier stage for MM or MC cartridges such as the PRO-JECT PHONO BOX or the PRO-JECT TUBE BOX 
which is then connected between the record player and a free line level input of the amplifier. 
For detailed product information please refer to the Pro-Ject web site 

www.project-audio.com

.

 

Summary of Contents for Pro-Ject RPM 9.1

Page 1: ...INSTRUCTIONS FOR USE Pro Ject RPM 9 1 ...

Page 2: ... Audio Trade GmbH Pro Ject RPM 9 1 Revision 1 3 08 1 5 08 2 ...

Page 3: ... 22 Adjustable tip toe feet with anti scratch cups Record weight not shown Connection cable not shown Power supply not shown Optional lid not shown Single adapter not shown Spirit level not shown Template not shown Dear music lover thank you for purchasing a PRO JECT AUDIO record player In order to achieve maximum performance and reliability with this record player you should study these instructi...

Page 4: ...the cartridge is correctly adjusted Particular tools like the PRO JECT alignment tool are required to accomplish this job properly If you are not well acquainted with the adjustment of cartridges you are advised to call upon the willing help of your PRO JECT dealer to accomplish this task for you Please note adjusting a cartridge and tonearm calls for the greatest care in order to avoid damaging t...

Page 5: ...he cantilever suspension The arm must be lifted to make each adjustment and lowered afterwards to check it Anti skating force adjustment The anti skating force must be adjusted according to the mass of the cartridge as follows Downforce Groove in the stub 15 10 14mN 1st from bearing rings 15 19mN 2nd 20mN and bigger 3rd Hang the loop of the thread of the anti skating weight in the groove of the an...

Page 6: ...ened antistatic cloth Never use a dry cloth because this will create static electricity which attract more dust Antistatic cleaning fluids are available at specialist stores but must be applied sparingly to avoid damage to rubber parts It is recommended to fit the needle cover before cleaning or maintenance is carried out to avoid damage If the player is not used over a long period of time the dri...

Page 7: ...irty platter bearing without oil dirty or damaged Service Should you encounter a problem which you are not able to alleviate or identify despite the above information please contact your dealer for further advice Only when the problem cannot be resolved there should the unit be sent to the responsible distributor in your country Guarantee repairs will only be effected if the unit is returned corre...

Page 8: ...Audio Trade GmbH Pro Ject RPM 9 1 Revision 1 3 08 1 5 08 8 Accessories Power supply Record weight Motor Motor base Tonearm counterweight Platter Tonearm transport lock Please remove feet bevore repacking ...

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